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* Merge branch 'merge' of ↵Linus Torvalds2009-04-1516-144/+105Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: pseries/dtl.c should include asm/firmware.h powerpc: Fix data-corrupting bug in __futex_atomic_op powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset() powerpc: Allow 256kB pages with SHMEM powerpc: Document new FSL I2C bindings and cleanup powerpc/mm: Fix compile warning powerpc/85xx: TQM8548: update defconfig powerpc/85xx: TQM8548: use proper phy-handles for enet2 and enet3 powerpc/85xx: TQM85xx: correct address of LM75 I2C device nodes powerpc: Add support for early tlbilx opcode powerpc: Fix tlbilx opcode
| * powerpc: pseries/dtl.c should include asm/firmware.hSachin Sant2009-04-151-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | A randconfig build on powerpc failed with: dtl.c: In function 'dtl_init': dtl.c:238: error: implicit declaration of function 'firmware_has_feature' dtl.c:238: error: 'FW_FEATURE_SPLPAR' undeclared (first use in this function) - We need firmware.h for these definitions. Signed-off-by: Sachin Sant <sachinp@in.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Fix data-corrupting bug in __futex_atomic_opPaul Mackerras2009-04-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Richard Henderson pointed out that the powerpc __futex_atomic_op has a bug: it will write the wrong value if the stwcx. fails and it has to retry the lwarx/stwcx. loop, since 'oparg' will have been overwritten by the result from the first time around the loop. This happens because it uses the same register for 'oparg' (an input) as it uses for the result. This fixes it by using separate registers for 'oparg' and 'ret'. Cc: stable@kernel.org Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/pseries: Set error_state to pci_channel_io_normal in eeh_report_reset()Mike Mason2009-04-151-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While adding native EEH support to Emulex and Qlogic drivers, it was discovered that dev->error_state was set to pci_io_channel_normal too late in the recovery process. These drivers rely on error_state to determine if they can access the device in their slot_reset callback, thus error_state needs to be set to pci_io_channel_normal in eeh_report_reset(). Below is a detailed explanation (courtesy of Richard Lary) as to why this is necessary. Background: PCI MMIO or DMA accesses to a frozen slot generate additional EEH errors. If the number of additional EEH errors exceeds EEH_MAX_FAILS the adapter will be shutdown. To avoid triggering excessive EEH errors and an undesirable adapter shutdown, some drivers use the pci_channel_offline(dev) wrapper function to return a Boolean value based on the value of pci_dev->error_state to determine if PCI MMIO or DMA accesses are safe. If the wrapper returns TRUE, drivers must not make PCI MMIO or DMA access to their hardware. The pci_dev structure member error_state reflects one of three values, 1) pci_channel_io_normal, 2) pci_channel_io_frozen, 3) pci_channel_io_perm_failure. Function pci_channel_offline(dev) returns TRUE if error_state is pci_channel_io_frozen or pci_channel_io_perm_failure. The EEH driver sets pci_dev->error_state to pci_channel_io_frozen at the point where the PCI slot is frozen. Currently, the EEH driver restores dev->error_state to pci_channel_io_normal in eeh_report_resume() before calling the driver's resume callback. However, when the EEH driver calls the driver's slot_reset callback() from eeh_report_reset(), it incorrectly indicates the error state is still pci_channel_io_frozen. Waiting until eeh_report_resume() to restore dev->error_state to pci_channel_io_normal is too late for Emulex and QLogic FC drivers and any other drivers which are designed to use common code paths in these two cases: i) those called after the driver's slot_reset callback() and ii) those called after the PCI slot is frozen but before the driver's slot_reset callback is called. Case i) all driver paths executed to reinitialize the hardware after a reset and case ii) all code paths executed by driver kernel threads that run asynchronous to the main driver thread, such as interrupt handlers and worker threads to process driver work queues. Emulex and QLogic FC drivers are designed with common code paths which require that pci_channel_offline(dev) reflect the true state of the hardware. The state transitions that the hardware takes from Normal Operations to Slot Frozen to Reset to Normal Operations are documented in the Power Architecture™ Platform Requirements+ (PAPR+) in Table 75. PE State Control. PAPR defines the following 3 states: 0 -- Not reset, Not EEH stopped, MMIO load/store allowed, DMA allowed (Normal Operations) 1 -- Reset, Not EEH stopped, MMIO load/store disabled, DMA disabled 2 -- Not reset, EEH stopped, MMIO load/store disabled, DMA disabled (Slot Frozen) An EEH error places the slot in state 2 (Frozen) and the adapter driver is notified that an EEH error was detected. If the adapter driver returns PCI_ERS_RESULT_NEED_RESET, the EEH driver calls eeh_reset_device() to place the slot into state 1 (Reset) and eeh_reset_device completes by placing the slot into State 0 (Normal Operations). Upon return from eeh_reset_device(), the EEH driver calls eeh_report_reset, which then calls the adapter's slot_reset callback. At the time the adapter's slot_reset callback is called, the true state of the hardware is Normal Operations and should be accurately reflected by setting dev->error_state to pci_channel_io_normal. The current implementation of EEH driver does not do so and requires this change to correct this deficiency. Signed-off-by: Mike Mason <mmlnx@us.ibm.com> Acked-by: Linas Vepstas <linasvepstas@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Allow 256kB pages with SHMEMHugh Dickins2009-04-151-1/+1
| | | | | | | | | | | | | | | | Now that shmem's divisions by zero and SHMEM_MAX_BYTES are fixed, let powerpc 256kB pages coexist with CONFIG_SHMEM again. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc/mm: Fix compile warningKumar Gala2009-04-081-1/+0Star
| | | | | | | | | | | | | | arch/powerpc/mm/tlb_nohash.c: In function 'flush_tlb_mm': arch/powerpc/mm/tlb_nohash.c:128: warning: unused variable 'cpu_mask' Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: TQM8548: update defconfigWolfgang Grandegger2009-04-071-116/+48Star
| | | | | | | | | | | | | | | | | | Enable highmem support for the TQM8548-AG modules and NAND support for the TQM8548-BE modules. Furthermore disable USB, Wireless and IDE support because it's not available on the STK85xx starter kit. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: TQM8548: use proper phy-handles for enet2 and enet3Wolfgang Grandegger2009-04-072-4/+4
| | | | | | | | | | | | | | | | For enet2 and enet3 the wrong phy-handles have been used in DTS files of the TQM8548 modules. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc/85xx: TQM85xx: correct address of LM75 I2C device nodesWolfgang Grandegger2009-04-076-12/+12
| | | | | | | | | | | | | | | | | | Commit 0f73a449a649acfca91404a98a35353a618b9555 added I2C device nodes for the LM75 thermal sensor on the TQM85xx modules, unfortunately with the wrong I2C address. The LM75s are located at address 0x48. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc: Add support for early tlbilx opcodeKumar Gala2009-04-074-3/+30
| | | | | | | | | | | | | | | | During the ISA 2.06 development the opcode for tlbilx changed and some early implementations used to old opcode. Add support for a MMU_FTR fixup to deal with this. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * powerpc: Fix tlbilx opcodeKumar Gala2009-04-071-1/+1
| | | | | | | | | | | | | | | | The tlbilx opcode was not matching the Power ISA 2.06 arch spec. The old opcode was an early suggested opcode that changed during the 2.06 architecture process. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | acpi-cpufreq: fix 'smp_call_function_many()' confusionLinus Torvalds2009-04-151-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out that 'smp_call_function_many()' doesn't work at all like 'smp_call_function_single()', and my change to Andrew's patch to use it rather than a loop over all CPU's acpi-cpufreq doesn't work. My bad. 'smp_call_function_many()' has two "features" (aka "documented bugs"): (a) it needs to be called with preemption disabled, because it uses smp_processor_id() without guarding the CPU lookup with 'get_cpu()' and 'put_cpu()' like the 'single' variant does. (b) even if the current CPU is part of the CPU mask, it won't do the call on that CPU. Still, we're better off trying to use 'smp_call_function_many()' than looping over CPU's, since it at least in theory allows us to use a broadcast IPI and do it all in parallel. So let's just work around the silly semantic bugs in that function. Reported-and-tested-by: Ali Gholami Rudi <ali@rudi.ir> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andrew Morton <akpm@linux-foundation.org>, Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | x86 microcode: revert some work_on_cpuHugh Dickins2009-04-141-22/+11Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert part of af5c820a3169e81af869c113e18ec7588836cd50 ("x86: cpumask: use work_on_cpu in arch/x86/kernel/microcode_core.c") That change is causing only one Intel CPU's microcode to be updated e.g. microcode: CPU3 updated from revision 0x9 to 0x17, date = 2005-04-22 where before it announced that also for CPU0 and CPU1 and CPU2. We cannot use work_on_cpu() in the CONFIG_MICROCODE_OLD_INTERFACE code, because Intel's request_microcode_user() involves a copy_from_user() from /sbin/microcode_ctl, which therefore needs to be on that CPU at the time. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2009-04-1414-14/+14
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Add missing FILE tag to MAINTAINERS microblaze: remove duplicated #include's microblaze: struct device - replace bus_id with dev_name() microblaze: Simplify copy_thread() microblaze: Add TIMESTAMPING constants to socket.h microblaze: Add missing empty ftrace.h file microblaze: Fix problem with removing zero length files
| * | microblaze: remove duplicated #include'sHuang Weiyi2009-04-145-6/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove duplicated #include's in arch/microblaze/include/asm/io.h arch/microblaze/kernel/prom.c arch/microblaze/kernel/ptrace.c arch/microblaze/kernel/signal.c arch/microblaze/kernel/sys_microblaze.c Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * | microblaze: struct device - replace bus_id with dev_name()Michal Simek2009-04-141-6/+4Star
| | | | | | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * | microblaze: Simplify copy_thread()Michal Simek2009-04-141-2/+1Star
| | | | | | | | | | | | | | | | | | | | | Removing nr parameter from copy_tread function commit 6f2c55b843836d26528c56a0968689accaedbc67 Signed-off-by: Michal Simek <monstr@monstr.eu>
| * | microblaze: Add TIMESTAMPING constants to socket.hMichal Simek2009-04-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | This changes was introduce with commit: cb9eff097831007afb30d64373f29d99825d0068 net: new user space API for time stamping of incoming and outgoing packets Signed-off-by: Michal Simek <monstr@monstr.eu>
| * | microblaze: Add missing empty ftrace.h fileMichal Simek2009-04-141-0/+1
| | | | | | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * | microblaze: Fix problem with removing zero length filesMichal Simek2009-04-145-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | Adding one new line was recommended solution. Test with make distclean Tested-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2009-04-1415-30/+140
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Add in PCI bus for DMA API debugging. sh: Pre-allocate a reasonable number of DMA debug entries. sh: sh7786: modify usb setup timeout judgment bug. MAINTAINERS: Update sh architecture file patterns. sh: ap325: use edge control for ov772x camera sh: Plug in support for ARCH=sh64 using sh SRCARCH. sh: urquell: Fix up address mapping in board comments. sh: Add support for DMA API debugging. sh: Provide cpumask_of_pcibus() to fix NUMA build. sh: urquell: Add board comment sh: wire up sys_preadv/sys_pwritev() syscalls. sh: sh7785lcr: fix PCI address map for 32-bit mode sh: intc: Added resume from hibernation support to the intc
| * | | sh: Add in PCI bus for DMA API debugging.Paul Mundt2009-04-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | This adds in the pci_bus_type for DMA API debug. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: Pre-allocate a reasonable number of DMA debug entries.Paul Mundt2009-04-141-1/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This prevents the DMA API debugging from running out of entries right away on boot. Defines 4096 entries by default, which while a bit on the heavy side, ought to leave enough breathing room for some time. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: sh7786: modify usb setup timeout judgment bug.Kuninori Morimoto2009-04-141-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This corrects a race with the PHY RST bit not being set properly if the PLL status changes right before timeout. This resulted in it potentially failing even if the device came up in time. Special thanks to Mr. Juha Leppanen and Iwamatsu-san for reporting this out and reviewing it. Reported-by: Juha Leppanen <juha_motorsportcom@luukku.com> Reviewed-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Tested-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | Merge branch 'master' of ↵Paul Mundt2009-04-13583-766/+35544
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | | sh: ap325: use edge control for ov772x cameraKuninori Morimoto2009-04-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: Plug in support for ARCH=sh64 using sh SRCARCH.Paul Mundt2009-04-111-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds in support for building with ARCH=sh64 using the sh SRCARCH. This tidies up the randconfig generation somewhat to make sure that we don't end up with impossible configurations, and without having to rely on things like KCONFIG_ALLCONFIG to detect the proper CPU support subset. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: urquell: Fix up address mapping in board comments.Kuninori Morimoto2009-04-101-15/+18
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: Add support for DMA API debugging.Paul Mundt2009-04-094-16/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This wires up support for the generic DMA API debugging. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: Provide cpumask_of_pcibus() to fix NUMA build.Paul Mundt2009-04-081-2/+5
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: urquell: Add board commentKuninori Morimoto2009-04-071-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: wire up sys_preadv/sys_pwritev() syscalls.Paul Mundt2009-04-064-2/+10
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | | sh: sh7785lcr: fix PCI address map for 32-bit modeYoshihiro Shimoda2009-04-062-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the problem that cannot work PCI device on 32-bit mode because influence of the commit 68b42d1b548be1840aff7122fdebeb804daf0fa3 ("sh: sh7785lcr: Map whole PCI address space."). So this patch was implement like a 29-bit mode, map whole physical address space of DDR-SDRAM. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | | parport_pc: Fix build failure drivers/parport/parport_pc.c for powerpcTony Breeds2009-04-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 51dcdfec6a274afc1c6fce180d582add9ff512c0 ("parport: Use the PCI IRQ if offered") parport_pc_probe_port() gained an irqflags arg. This isn't being supplied on powerpc. This patch make powerpc fallback to the old behaviour, that is using "0" for irqflags. Fixes build failure: In file included from drivers/parport/parport_pc.c:68: arch/powerpc/include/asm/parport.h: In function 'parport_pc_find_nonpci_ports': arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' arch/powerpc/include/asm/parport.h:32: error: too few arguments to function 'parport_pc_probe_port' make[3]: *** [drivers/parport/parport_pc.o] Error 1 Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | parport: Fix various uses of parport_pcAlan Cox2009-04-141-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These got overlooked first time around. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Fix quilt merge error in acpi-cpufreq.cLinus Torvalds2009-04-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We ended up incorrectly using '&cur' instead of '&readin' in the work_on_cpu() -> smp_call_function_single() transformation in commit 01599fca6758d2cd133e78f87426fc851c9ea725 ("cpufreq: use smp_call_function_[single|many]() in acpi-cpufreq.c"). Andrew explains: "OK, the acpi tree went and had conflicting changes merged into it after I'd written the patch and it appears that I incorrectly reverted part of 18b2646fe3babeb40b34a0c1751e0bf5adfdc64c while fixing the resulting rejects. Switching it to `readin' looks correct." Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge branch 'for-rc1/xen/core' of ↵Linus Torvalds2009-04-147-59/+160
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'for-rc1/xen/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: add FIX_TEXT_POKE to fixmap xen: honour VCPU availability on boot xen: clean up gate trap/interrupt constants xen: set _PAGE_NX in __supported_pte_mask before pagetable construction xen: resume interrupts before system devices. xen/mmu: weaken flush_tlb_other test xen/mmu: some early pagetable cleanups Xen: Add virt_to_pfn helper function x86-64: remove PGE from must-have feature list xen: mask XSAVE from cpuid NULL noise: arch/x86/xen/smp.c xen: remove xen_load_gdt debug xen: make xen_load_gdt simpler xen: clean up xen_load_gdt xen: split construction of p2m mfn tables from registration xen: separate p2m allocation from setting xen: disable preempt for leave_lazy_mmu
| * | | | | xen: add FIX_TEXT_POKE to fixmapJeremy Fitzhardinge2009-04-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | FIX_TEXT_POKE[01] are used to map kernel addresses, so they're mapping pfns, not mfns. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: clean up gate trap/interrupt constantsJeremy Fitzhardinge2009-04-081-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use GATE_INTERRUPT/TRAP rather than 0xe/f. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: set _PAGE_NX in __supported_pte_mask before pagetable constructionJeremy Fitzhardinge2009-04-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some 64-bit machines don't support the NX flag in ptes. Check for NX before constructing the kernel pagetables. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen/mmu: weaken flush_tlb_other testJeremy Fitzhardinge2009-04-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Impact: fixes crashing bug There's no particular problem with getting an empty cpu mask, so just shortcut-return if we get one. Avoids crash reported by Christophe Saout <christophe@saout.de> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen/mmu: some early pagetable cleanupsJeremy Fitzhardinge2009-04-082-14/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. make sure early-allocated ptes are pinned, so they can be later unpinned 2. don't pin pmd+pud, just make them RO 3. scatter some __inits around Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | Xen: Add virt_to_pfn helper functionAlex Nixon2009-04-081-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Alex Nixon <alex.nixon@citrix.com>
| * | | | | x86-64: remove PGE from must-have feature listJeremy Fitzhardinge2009-04-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PGE may not be available when running paravirtualized, so test the cpuid bit before using it. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: mask XSAVE from cpuidJeremy Fitzhardinge2009-04-081-6/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Xen leaves XSAVE set in cpuid, but doesn't allow cr4.OSXSAVE to be set. This confuses the kernel and it ends up crashing on an xsetbv instruction. At boot time, try to set cr4.OSXSAVE, and mask XSAVE out of cpuid it we can't. This will produce a spurious error from Xen, but allows us to support XSAVE if/when Xen does. This also factors out the cpuid mask decisions to boot time. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | NULL noise: arch/x86/xen/smp.cHannes Eder2009-04-081-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix this sparse warnings: arch/x86/xen/smp.c:316:52: warning: Using plain integer as NULL pointer arch/x86/xen/smp.c:421:60: warning: Using plain integer as NULL pointer Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: remove xen_load_gdt debugJeremy Fitzhardinge2009-04-081-3/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't need the noise. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: make xen_load_gdt simplerJeremy Fitzhardinge2009-04-081-8/+6Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove use of multicall machinery which is unused (gdt loading is never performance critical). This removes the implicit use of percpu variables, which simplifies understanding how the percpu code's use of load_gdt interacts with this code. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: clean up xen_load_gdtJeremy Fitzhardinge2009-04-081-2/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Makes the logic a bit clearer. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
| * | | | | xen: split construction of p2m mfn tables from registrationJeremy Fitzhardinge2009-04-081-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Build the p2m_mfn_list_list early with the rest of the p2m table, but register it later when the real shared_info structure is in place. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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