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* microblaze: Allow PAGE_SIZE configurationSteven J. Magnani2010-08-041-0/+30
| | | | | | | | | | Allow developer to configure memory page size at compile time. Larger pages can improve performance on some workloads. Based on PowerPC code. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* lmb: rename to memblockYinghai Lu2010-07-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | via following scripts FILES=$(find * -type f | grep -vE 'oprofile|[^K]config') sed -i \ -e 's/lmb/memblock/g' \ -e 's/LMB/MEMBLOCK/g' \ $FILES for N in $(find . -name lmb.[ch]); do M=$(echo $N | sed 's/lmb/memblock/g') mv $N $M done and remove some wrong change like lmbench and dlmb etc. also move memblock.c from lib/ to mm/ Suggested-by: Ingo Molnar <mingo@elte.hu> Acked-by: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* microblaze: Kconfig Fix - pciMichal Simek2010-04-011-3/+0Star
| | | | | | I forget to remove pci Kconfig option. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Add consistent codeMichal Simek2010-03-111-0/+9
| | | | | | | | | | | | | | | Remove ancient Kconfig option for consistent code. MMU uses cache inhibit pages. noMMU uses UNCACHE SHADOW feature where is used double ram size. For example: Physical ram is 256MB and cache are setup to cover the same size. But if you setup in HW that size is 512MB and cache covers 256MB than you can use adresses from 256-512MB without caches and correspond with 0-256MB with cache. That's why I am using dcache base/high addresses to find out uncache area. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Remove ancient Kconfig option for consistent mappingMichal Simek2010-03-111-31/+2Star
| | | | | | We don't use CONSISTENT option from Kconfig that's why I am removing them. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Add support for Xilinx PCI host bridgeMichal Simek2010-03-111-0/+4
| | | | | | | | | | | | | | This patch is based on powerpc patch 64f16502475ddf663169369fffff6da9b10ea9fb We did some cleanups and removed powerpc parts. There is one new debug early listing function too. Exclude function is only in Debug options. We tested in on custom board. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Enable PCI, missing filesMichal Simek2010-03-111-0/+15
| | | | | | | | | | | | | | There are two parts of changes. The first is just enable PCI in Makefiles and in Kconfig. The second is the rest of missing files. I didn't want to add it with previous patch because that patch is too big. Current Microblaze toolchain has problem with weak symbols that's why is necessary to apply this changes to be possible to compile pci support. Xilinx knows about this problem. Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Support DMAMichal Simek2010-03-111-3/+2Star
| | | | | | | | | | | | | | | | | | Add DMA support for Microblaze. There are some part of this new feature: 1. Basic DMA support 2. Enable DMA debug option 3. Setup notifier Ad 1. dma-mapping come from powerpc and x86 version and it is based on generic dma-mapping-common.h Ad 2. DMA support debug features which is used in generic file. For more information please look at Documentation/DMA-API.txt Ad 3. notifier is very important to setup dma_ops. Without this part for example ll_temac driver failed because there are no setup dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
* Merge commit 'v2.6.33-rc5' into secretlab/test-devicetreeGrant Likely2010-01-281-1/+20
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| * microblaze: Add missing double apostrophe in KconfigMichal Simek2010-01-181-1/+1
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Enable DTC compilationMichal Simek2009-12-141-0/+3
| | | | | | | | | | | | | | For simpleImage format we need to compile DTC. There is still possibility to compile only Linux kernel without DTB compiled-in. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Core oprofile configs and hooksJohn Williams2009-12-141-0/+2
| | | | | | | | | | | | | | | | Microblaze uses timer interrupt mode. Microblaze don't have any performance counter that's why we use just simple implementation. Signed-off-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: ftrace: add function graph supportMichal Simek2009-12-141-0/+1
| | | | | | | | | | | | For more information look at Documentation/trace folder. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: ftrace: Add dynamic trace supportMichal Simek2009-12-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With dynamic function tracer, by default, _mcount is defined as an "empty" function, it returns directly without any more action. When enabling it in user-space, it will jump to a real tracing function(ftrace_caller), and do the real job for us. Differ from the static function tracer, dynamic function tracer provides two functions ftrace_make_call()/ftrace_make_nop() to enable/disable the tracing of some indicated kernel functions(set_ftrace_filter). In the kernel version, there is only one "_mcount" string for every kernel function, so, we just need to match this one in mcount_regex of scripts/recordmcount.pl. For more information please look at code and Documentation/trace folder. Steven ACK that scripts/recordmcount.pl part. Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: ftrace: enable HAVE_FUNCTION_TRACE_MCOUNT_TESTMichal Simek2009-12-141-0/+1
| | | | | | | | | | | | | | Implement MCOUNT_TEST in asm code - it is faster than use generic code Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: ftrace: add static function tracerMichal Simek2009-12-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If -pg of gcc is enabled with CONFIG_FUNCTION_TRACER=y. a calling to _mcount will be inserted into each kernel function. so, there is a possibility to trace the kernel functions in _mcount. This patch add the specific _mcount support for static function tracing. by default, ftrace_trace_function is initialized as ftrace_stub(an empty function), so, the default _mcount will introduce very little overhead. after enabling ftrace in user-space, it will jump to a real tracing function and do static function tracing for us. Commit message from Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: preliminary enabling for LATENCYTOP support in KconfigMichal Simek2009-12-141-0/+3
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Lockdep supportMichal Simek2009-12-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Microblaze needs to do lock_init very soon because MMU init calls lock functions. Here is the explanation from Peter Zijlstra why we have to enable __ARCH_WANTS_INTERRUPTS_ON_CTSW. "So we schedule while holding rq->lock (for obvious reasons), but since lockdep tracks held locks per tasks, we need to transfer the held state from the prev to the next task. We do this by explicity calling spin_release(&rq->lock) in context_switch() right before switch_to(), and calling spin_acquire(&rq->lock) in finish_task_switch()->finish_lock_switch(). Now, for some reason lockdep thinks that interrupts got enabled over the context switch (git grep __ARCH_WANTS_INTERRUPTS_ON_CTSW arch/microblaze doesn't seem to turn up anything). Clearly trying to acquire the rq->lock with interrupts enabled is a bad idea and lockdep warns you about this." Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Stack trace supportMichal Simek2009-12-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This is working implemetation but the problem is that Microblaze misses frame pointer that's why is there big loop which trace and show all addresses which are in text. It shows addresses which are in registers, etc. This is problem and this is the reason why all Microblaze traces are wrong. There is an option to do hacks and trace the kernel code but this is too complicated. Signed-off-by: Michal Simek <monstr@monstr.eu>
* | of/flattree: merge find_flat_dt_string and initial_boot_paramsGrant Likely2009-11-231-0/+1
|/ | | | | | | | Merge common code between Microblaze and PowerPC. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Michal Simek <monstr@monstr.eu>
* microblaze: Add architectural support for USB EHCI host controllersJulie Zhu2009-09-221-0/+1
| | | | | | | | | Add architectural support for USB EHCI host controllers. It has been tested using the USB EHCI host controller from Xilinx Inc., using both High Speed devices and Full Speed devices. Signed-off-by: Julie Zhu <julie.zhu@xilinx.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: use the generic lib/checksum.cRemis Lima Baima2009-07-061-0/+3
| | | | | | | | The microblaze checksum code is mostly identical to the asm-generic+lib version, so use that instead. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze_mmu_v2: Kconfig updateMichal Simek2009-05-261-3/+109
| | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: use generic dma-mapping-broken.hArnd Bergmann2009-05-211-1/+1
| | | | | | | | | | | | | | Microblaze does not support the Linux DMA mapping API at this point, so disable CONFIG_NO_DMA. This lets us use the generic dma-mapping-broken.h implementation instead of providing a different copy. Any drivers that try to use DMA mapping now get omitted from Kconfig or produce a link error, rather than failing silently at run time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze: Kconfig: Enable drivers for MicroblazeMichal Simek2009-05-211-3/+4
| | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
* microblaze_v8: Kconfig patchesMichal Simek2009-03-271-0/+141
Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
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