- 07 4月, 2010 2 次提交
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由 Michal Simek 提交于
Patch b3c1e01a should do it. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Steven J. Magnani 提交于
The Microblaze dynamic ftrace code assumes a call ordering that is not met in all scenarios. Specifically, executing a command similar to: echo 105 > /sys/kernel/debug/tracing/set_ftrace_pid before any other tracing-related commands results in a kernel panic: BUG: failure at arch/microblaze/kernel/ftrace.c:198/ftrace_update_ftrace_func()! Recoding ftrace_update_ftrace_func() to use &ftrace_caller directly eliminates the need to capture its address elsewhere (and thus rely on a particular call sequence). Signed-off-by: NSteven J. Magnani <steve@digidescorp.com> Signed-off-by: NMichal Simek <monstr@monstr.eu>
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- 01 4月, 2010 13 次提交
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由 Michal Simek 提交于
If early printk console is not enabled then all messages are written to log buffer. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
I forget to change register name in comments. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
TLB size was hardcoded in asm code. This patch brings ability to change TLB size only in one place. (mmu.h). Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
On the base on GCOV analytics is helpful to add likely/unlikely macros. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
Cachegrind analysis need this fix to be able to log asm functions. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
Sync labels. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
RESR and REAR uses the same regs in whole file. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
This change synchronize register usage in code. ESR = R4 EAR = R3 Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
Any sync branch must follow mts instructions not mfs. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
Disable debug option in asm code. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
When the system has no lmb bram, main memory should be start from zero because of microblaze vectors. DTS fragment could look like: DDR2_SDRAM: memory@0 { device_type = "memory"; reg = < 0x0 0x10000000 >; } ; Then you have to setup CONFIG_KERNEL_BASE_ADDR=0 which caused that kernel physical start address will be zero. On reset vector place will be jump to 0x100 and on 0x100 starts kernel text. You have to solve how to load the kernel before cpu starts. Tested with XMD. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
I would like to use asm-generic uaccess.h where are segment macros defined. This is just first step. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Steven J. Magnani 提交于
The "kstack=" command line parameter is not parsed correctly. All proper values are interpreted as zero. Signed-off-by: NSteven J. Magnani <steve@digidescorp.com> Signed-off-by: NMichal Simek <monstr@monstr.eu>
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- 30 3月, 2010 1 次提交
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由 Tejun Heo 提交于
include cleanup: Update gfp.h and slab.h includes to prepare for breaking 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: NTejun Heo <tj@kernel.org> Guess-its-ok-by: NChristoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
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- 13 3月, 2010 2 次提交
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由 Christoph Hellwig 提交于
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: NChristoph Hellwig <hch@lst.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Roland McGrath <roland@redhat.com> Acked-by: NMichal Simek <monstr@monstr.eu> Cc: John Williams <john.williams@petalogix.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Christoph Hellwig 提交于
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: NChristoph 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: NGreg Ungerer <gerg@uclinux.org> Acked-by: NRoland McGrath <roland@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 11 3月, 2010 15 次提交
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由 Michal Simek 提交于
Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
It is default option but both options must be measured. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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由 Frans Pop 提交于
Signed-off-by: NFrans Pop <elendil@planet.nl> Cc: microblaze-uclinux@itee.uq.edu.au Cc: Michal Simek <monstr@monstr.eu> Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
It is better to have init cache handling on one place. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
This patch is based on powerpc patch 64f16502 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: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
Support function for PCI. We don't use any advance mapping mechanism that's why implementation is simple. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
There is necessary to do some cache handling for dma operations. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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由 Michal Simek 提交于
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: NMichal Simek <monstr@monstr.eu>
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- 24 2月, 2010 1 次提交
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由 Michal Simek 提交于
I create wrong asm code but none test shows that this part of code is wrong. I am not convinces that were good idea to create asm optimized macros for caches. The reason is that there is not optimization with previous code that's why make sense to add old code and do some benchmarking which functions are faster. Signed-off-by: NMichal Simek <monstr@monstr.eu>
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- 14 2月, 2010 2 次提交
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由 Grant Likely 提交于
Rather than defining of_chosen in each arch, it can be defined for all in driver/of/base.c Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Jeremy Kerr 提交于
We don't always have lmb available, so make arches provide an early_init_dt_alloc_memory_arch() to handle the allocation of memory in the fdt code. When we don't have lmb.h included, we need asm/page.h for __va. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: NMichal Simek <monstr@monstr.eu>
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- 09 2月, 2010 4 次提交
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由 Jeremy Kerr 提交于
At present, the fdt code sets the kernel-wide initrd_start and initrd_end variables when parsing /chosen. On ARM, we only set these once the bootmem has been reserved. This change adds an arch hook to setup the initrd from the device tree: void early_init_dt_setup_initrd_arch(unsigned long start, unsigned long end); The arch-specific code can then setup the initrd however it likes. Compiled on powerpc, with CONFIG_BLK_DEV_INITRD=y and =n. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze architectures. Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Acked-by: NMichal Simek <monstr@monstr.eu>
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由 Jeremy Kerr 提交于
Merge common function between powerpc, sparc and microblaze. Code is identical for powerpc and microblaze, but adds a lock (and release) of the devtree_lock on sparc. Signed-off-by: NJeremy Kerr <jeremy.kerr@canonical.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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由 Grant Likely 提交于
Merge common code between PowerPC and Microblaze Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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