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| * microblaze: uaccess: Fix get_user macro for noMMUMichal Simek2010-04-01
| | | | | | | | | | | | Use unified version. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: fix clear_user for noMMU kernelMichal Simek2010-04-01
| | | | | | | | | | | | | | Previous patches fixed only MMU version and this is the first patch for noMMU kernel Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: Fix strncpy_from_user functionMichal Simek2010-04-01
| | | | | | | | | | | | Generic implementation for noMMU and MMU version Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: fix copy_from_user macroMichal Simek2010-04-01
| | | | | | | | | | | | copy_from_user macro also use copy_tofrom_user function Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: copy_to_user unificationMichal Simek2010-04-01
| | | | | | | | | | | | | | noMMU and MMU kernel will use copy copy_tofrom_user asm implementation. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: sync put/get/clear_user macrosMichal Simek2010-04-01
| | | | | | | | | | | | Add macro description and resort. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: fix put_user and get_user macrosMichal Simek2010-04-01
| | | | | | | | | | | | Use FIXUP macros and resort them. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: fix __get_user_asm macroMichal Simek2010-04-01
| | | | | | | | | | | | It is used __FIXUP_SECTION and __EX_TABLE_SECTION macros. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: uaccess: fix clean user macroMichal Simek2010-04-01
| | | | | | | | | | | | | | | | This is the first patch which does uaccess unification. I choosed to do several patches to be able to use bisect in future if any fault happens. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: move noMMU __range_ok function to uaccess.hMichal Simek2010-04-01
| | | | | | | | | | | | | | The same noMMU and MMU functions should be placed in one file. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Move exception_table_entry upwardMichal Simek2010-04-01
| | | | | | | | | | | | Just sort to be able remove whole block. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Remove segment.hMichal Simek2010-04-01
| | | | | | | | | | | | | | I would like to use asm-generic uaccess.h where are segment macros defined. This is just first step. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Remove memset in free_init_pagesMichal Simek2010-04-01
| | | | | | | | | | | | We don't need to do it. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Makefile cleanupsArun Bhanu2010-04-01
| | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_INITRAMFS_SOURCE is set, "scripts/gen_initramfs_list.sh" checks if the cpio image exists. Remove the duplicate check from the Makefile. Remove the "clean-kernel" variable which is unused in the Makefile and is not used by the Kbuild. Signed-off-by: Arun Bhanu <arun@bhanu.net> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Fix Makefile to delete build generated filesArun Bhanu2010-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'make clean' does not to delete the following build generated file: arch/microblaze/boot/linux.bin.ub 'make mrproper' does not to delete the following build generated files: arch/microblaze/boot/simpleImage.* Fix the Makefile to delete these build generated files. See [1] for a discussion on why simpleImage.* files are deleted with 'make mrproper' and not with 'make clean'. [1] http://lkml.org/lkml/2010/3/12/96 Signed-off-by: Arun Bhanu <arun@bhanu.net> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add a missing single quote to make 'make help' happyArun Bhanu2010-04-01
| | | | | | | | | | | | | | | | | | | | | | | | 'make ARCH=microblaze help' fails with the following error due to a missing single quote. /bin/sh: -c: line 0: unexpected EOF while looking for matching `'' /bin/sh: -c: line 1: syntax error: unexpected end of file make: *** [help] Error 2 Signed-off-by: Arun Bhanu <arun@bhanu.net> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Fix "kstack=" parsingSteven J. Magnani2010-04-01
| | | | | | | | | | | | | | | | The "kstack=" command line parameter is not parsed correctly. All proper values are interpreted as zero. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
* | include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2010-03-18
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (27 commits) microblaze: entry.S use delay slot for return handlers microblaze: Save current task directly microblaze: Simplify entry.S - save/restore r3/r4 - ret_from_trap microblaze: PCI early support for noMMU system microblaze: Fix dma alloc and free coherent dma functions microblaze: Add consistent code microblaze: pgtable.h: move consistent functions microblaze: Remove ancient Kconfig option for consistent mapping microblaze: Remove VMALLOC_VMADDR microblaze: Add define for ASM_LOOP microblaze: Preliminary support for dma drivers microblaze: remove trailing space in messages microblaze: Use generic show_mem() microblaze: Change temp register for cmdline microblaze: Preliminary support for dma drivers microblaze: Move cache function to cache.c microblaze: Add support from PREEMPT microblaze: Add support for Xilinx PCI host bridge microblaze: Enable PCI, missing files microblaze: Add core PCI files ...
| * microblaze: entry.S use delay slot for return handlersMichal Simek2010-03-11
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Save current task directlyMichal Simek2010-03-11
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Simplify entry.S - save/restore r3/r4 - ret_from_trapMichal Simek2010-03-11
| | | | | | | | | | | | | | There is possible to save r3/r4 at the beggining of user part before calling handlers and at the end restore it. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: PCI early support for noMMU systemMichal Simek2010-03-11
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Fix dma alloc and free coherent dma functionsMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | | | We have to use consistent code to be able to do coherent dma function. In consistent code is used cache inhibit page mapping. Xilinx reported that there is bug in Microblaze for WB and d-cache_always use option. Microblaze 7.30.a should be first version where is this bug removed. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add consistent codeMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: pgtable.h: move consistent functionsMichal Simek2010-03-11
| | | | | | | | | | | | Consistent functions will be used for noMMU and MMU kernels. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Remove ancient Kconfig option for consistent mappingMichal Simek2010-03-11
| | | | | | | | | | | | We don't use CONSISTENT option from Kconfig that's why I am removing them. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Remove VMALLOC_VMADDRMichal Simek2010-03-11
| | | | | | | | Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add define for ASM_LOOPMichal Simek2010-03-11
| | | | | | | | | | | | It is default option but both options must be measured. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Preliminary support for dma driversMichal Simek2010-03-11
| | | | | | | | | | | | | | | | I found several problems for ll_temac driver and on system with WB. This early fix should fix it. I will clean this patch before I will add it to mainline Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: remove trailing space in messagesFrans Pop2010-03-11
| | | | | | | | | | | | | | Signed-off-by: Frans Pop <elendil@planet.nl> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Use generic show_mem()Michal Simek2010-03-11
| | | | | | | | | | | | | | | | Remove arch-specific show_mem() in favor of the generic version. It is based on powerpc patch. bda2fa535564ace56a395d5b65c6dc81305401fa Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Change temp register for cmdlineMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | | | For copy was used r7 register when CONFIG_CMDLINE_BOOL option is enabled. But r7 stores pointer to fdt that's why machine_early_init not detect compiled-in DTB. I also moved kernel PID setup to have TLB init in one block Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Preliminary support for dma driversMichal Simek2010-03-11
| | | | | | | | | | | | | | | | I found several problems for ll_temac driver and on system with WB. This early fix should fix it. I will clean this patch before I will add it to mainline Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Move cache function to cache.cMichal Simek2010-03-11
| | | | | | | | | | | | It is better to have init cache handling on one place. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add support from PREEMPTMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | This patch add core PREEMPT support for Microblaze. I tried to trace it via tracers and I was able to see any output. I also added low level debug functions to see if that code is called. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add support for Xilinx PCI host bridgeMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Simek2010-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Add core PCI filesMichal Simek2010-03-11
| | | | | | | | | | | | | | | | Add pci-common.h and pci32.c. Files are based on PPC version. There are removed ppc specific parts and the code was completely clean. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add pci-bridge.hMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | Add pci-bridge.h for Microblaze. It is based on powerpc header file. My changes: I removed PPC_ prefix from constants Removed ppc64 specifis parts Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add pci.hMichal Simek2010-03-11
| | | | | | | | | | | | Add pci.h for microblaze. It is based on powerpc pci.h Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: io.h include asm-generic/iomap.hMichal Simek2010-03-11
| | | | | | | | | | | | | | I need to use generic/iomap.h for PCI that's why is necessary to include it and fix ioport_{map,unmap} functions. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add irq_create_{of_,}mapping functionsMichal Simek2010-03-11
| | | | | | | | | | | | | | Support function for PCI. We don't use any advance mapping mechanism that's why implementation is simple. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Add {z,}alloc_maybe_bootmem functionsMichal Simek2010-03-11
| | | | | | | | | | | | I will need {z,}alloc_maybe_bootmem functions for pci patches Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Implement __dma_sync_pageMichal Simek2010-03-11
| | | | | | | | | | | | There is necessary to do some cache handling for dma operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
| * microblaze: Support DMAMichal Simek2010-03-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | microblaze: use generic ptrace_resume codeChristoph Hellwig2010-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT and PTRACE_KILL. This also makes PTRACE_SINGLESTEP return -EIO while it previously succeeded despite not actually causing any kind of single stepping. Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which it previously wasn't which is consistent with all architectures using the modern ptrace code. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Acked-by: Michal Simek <monstr@monstr.eu> Cc: John Williams <john.williams@petalogix.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ptrace: use ptrace_request() in the remaining architecturesChristoph Hellwig2010-03-12
|/ | | | | | | | | | | | | | | | | | | | | Use ptrace_request() in the three remaining architectures that didn't use it (m68knommu, h8300, microblaze). This means: - ptrace_request now handles PTRACE_{PEEK,POKE}{TEXT,DATA} and PTRACE_DETATCH calls that were previously called directly, or in case of h8300 even open coded. - adds new support for PTRACE_SETOPTIONS/PTRACE_GETEVENTMSG/ PTRACE_GETSIGINFO/PTRACE_SETSIGINFO Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Michal Simek <monstr@monstr.eu> Acked-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2010-03-03
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: add __percpu sparse annotations to what's left percpu: add __percpu sparse annotations to fs percpu: add __percpu sparse annotations to core kernel subsystems local_t: Remove leftover local.h this_cpu: Remove pageset_notifier this_cpu: Page allocator conversion percpu, x86: Generic inc / dec percpu instructions local_t: Move local.h include to ringbuffer.c and ring_buffer_benchmark.c module: Use this_cpu_xx to dynamically allocate counters local_t: Remove cpu_local_xx macros percpu: refactor the code in pcpu_[de]populate_chunk() percpu: remove compile warnings caused by __verify_pcpu_ptr() percpu: make accessors check for percpu pointer in sparse percpu: add __percpu for sparse. percpu: make access macros universal percpu: remove per_cpu__ prefix.
| * Merge branch 'master' into percpuTejun Heo2010-02-02
| |\
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