- 15 8月, 2009 13 次提交
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由 Paul Mundt 提交于
This does a bit of reorganizing for allowing nommu to use the new and generic cache.c, no functional changes. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This builds in the newly created cache.c (renamed from pg-mmu.c) for both MMU and NOMMU configurations. The kmap_coherent() stubs and alias information recorded by each CPU family takes care of doing the right thing while enabling the code to be commonly shared. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This plugs in kmap_coherent() for the non-SH4 cases to permit the pg-mmu.c bits to be used generically across all CPUs. SH-5 is still in the TODO state, but will move over to fixmap and the generic interface gradually. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This kills off the ifdef from kmap_coherent_init() and just bails if there are no cache aliases. This permits the kmap coherent code to be used on other CPUs. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
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由 Paul Mundt 提交于
This only bothers with the TLB entry flush in the case of the initial page write exception, as it is unecessary in the case of the load/store exceptions. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This adds a bit of rework to have the TLB protection violations skip the TLB miss fastpath and go directly in to do_page_fault(), as these require slow path handling. Based on an earlier patch by SUGIOKA Toshinobu. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This optimizes for the cases when a CPU does not yet have a valid ASID context associated with it, as in this case there is no work for any of flush_cache_mm()/flush_cache_page()/flush_cache_range() to do. Based on the the MIPS implementation. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
Now with all of the prep work out of the way, kill off the SH-5 variants and use the SH-4 version directly. This also takes advantage of the unrolling that was previously done for the new version. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This plugs in some register alignment helpers for the shared flushers, allowing them to also be used on SH-5. The main rationale here is that in the SH-5 case we have a variable ABI, where the pointer size may not equal the register width. This register extension is taken care of by the SH-5 code already today, and is otherwise unused on the SH-4 code. This combines the two and allows us to kill off the SH-5 implementation. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This inserts a ULONG_MAX entry at the end of the valid entries in the stack trace buffer so the default code doesn't need to scan to the end of available slots. This also makes the trace buffer termination behaviour consistent with the other architectures. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This flags the default unwinder as reliable, as it tends to be reliable enough for the purposes of the stacktrace buffer. We leave the unreliable cases for the unwind methods that we know to be completely broken. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This adopts the reliability checks from the x86 stacktrace code so known bad addresses are not recorded in the stack trace buffer. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 14 8月, 2009 9 次提交
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由 Paul Mundt 提交于
save_stack_trace_tsk() and friends can be called from atomic context (as triggered by latencytop), and subsequently hit two problematic allocation points that were using GFP_KERNEL (these were dwarf_unwind_stack() and dwarf_frame_alloc_regs()). Convert these over to GFP_ATOMIC and get latencytop working with the DWARF unwinder. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
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由 Matt Fleming 提交于
Trying to figure out the best value for DWARF_ARCH_UNWIND_OFFSET is tricky at best. Various things can change the size (and offset from the beginning of the function) of the prologue. Notably, turning on ftrace adds calls to mcount at the beginning of functions, thereby pushing the prologue further into the function. So replace DWARF_ARCH_UNWIND_OFFSET with some code that continues to execute CFA instructions until the value of return address register is defined. This is safe to do because we know that the return address must have been pushed onto the frame before our first function call; we just can't figure out where at compile-time. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This is no longer used, kill it off. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
The destination address might be unaligned, so set it with put_unaligned() for safety. This restores the previous behaviour, albeit through the proper API. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
This was using internal symbols for unaligned accesses, bypassing the exposed interface for variable sized safe accesses. This converts all of the __get_unaligned_cpuXX() users over to get_unaligned() directly, relying on the cast to select the proper internal routine. Additionally, the __put_unaligned_cpuXX() case is superfluous given that the destination address is aligned in all of the current cases, so just drop that outright. Furthermore, this switches to the asm/unaligned.h header instead of the asm-generic version, which was silently bypassing the SH-4A optimized unaligned ops. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Annotate various assembly code paths with CFI assembler directives so that DWARF unwind info is available for the unwinder. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
In order to use DWARF unwinder info the frame register has to contain a valid value. Whilst GCC takes care of this for C code, we have to do it ourselves for assembly. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
This is a first cut at a generic DWARF unwinder for the kernel. It's still lacking DWARF64 support and the DWARF expression support hasn't been tested very well but it is generating proper stacktraces on SH for WARN_ON() and NULL dereferences. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 13 8月, 2009 10 次提交
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由 Matt Fleming 提交于
Instead of implementing our own stack unwinder via dump_trace() we should use the new stack unwinder API because it is more modular. This change allows us to decouple the interface for generating stacktraces from the implementation of a stack unwinder. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Provide an interface for registering stack unwinders, where each unwinder is given a rating that describes its accuracy and complexity. The more accurate an unwinder is, the more complex it is. If a the current stack unwinder faults, then the stack unwinder with the next highest accuracy will be used in its place (provided one is available). For example, this allows unwinders, such as the DWARF unwinder, to liberally sprinkle BUG()s to catch badly formed DWARF debug info. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Matt Fleming 提交于
Copy the stacktrace ops code from x86 and provide a central function for use by functions that need to dump a callstack. Signed-off-by: NMatt Fleming <matt@console-pimps.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Marcin Slusarz 提交于
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com> Cc: linux-sh@vger.kernel.org Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
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由 Magnus Damm 提交于
Convert the AP325RXA board code to register devices at arch_initcall() time instead of device_initcall(). This fix unbreaks pcf8563 RTC driver support. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Convert the Migo-R board code to register devices at arch_initcall() time instead of __initcall(). This fix unbreaks migor_ts touch screen driver support. Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Magnus Damm 提交于
Convert the processor platform device setup functions from __initcall() and sometimes device_initcall() to arch_initcall(). This makes sure that the platform devices are registered a bit earlier so the devices are available when drivers register using initcall levels earlier than device_initcall(). A good example is platform devices needed by i2c-sh_mobile.c which registers a bit earlier using subsys_initcall(). Signed-off-by: NMagnus Damm <damm@igel.co.jp> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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git://git.kernel.dk/linux-2.6-block由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: Remove double removal of blktrace directory
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由 Alan D. Brunelle 提交于
commit fd51d251 Author: Stefan Raspl <raspl@linux.vnet.ibm.com> Date: Tue May 19 09:59:08 2009 +0200 blktrace: remove debugfs entries on bad path added in an explicit invocation of debugfs_remove for bt->dir, in blk_remove_buf_file_callback we are also getting the directory removed. On occasion I am seeing memory corruption that I have bisected down to this commit. [The testing involves a (long) series of I/O benchmarks with blktrace invoked around the actual runs.] I believe that this committed patch is correct, but the problem actually lies in the code in blk_remove_buf_file_callback. With this patch I am able to consistently get complete runs whereas previously I could not get a single run to complete. The first part of the patch simply moves the debugfs_remove below the relay_close: the relay_close call will remove files under bt->dir, and so we should not remove the directory until all the files we created have been removed. (Note: This is not sufficient to fix the problem - the file system code has ref counts on the directoy, so our invocation does not cause the directory to actually be removed. Nonetheless, we should not rely upon that feature.) Signed-off-by: NAlan D. Brunelle <alan.brunelle@hp.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
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- 12 8月, 2009 8 次提交
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git://oss.sgi.com/xfs/xfs由 Linus Torvalds 提交于
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: fix spin_is_locked assert on uni-processor builds xfs: check for dinode realtime flag corruption use XFS_CORRUPTION_ERROR in xfs_btree_check_sblock xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_get xfs: switch to NOFS allocation under i_lock in xfs_readlink_bmap xfs: switch to NOFS allocation under i_lock in xfs_attr_rmtval_set xfs: switch to NOFS allocation under i_lock in xfs_buf_associate_memory xfs: switch to NOFS allocation under i_lock in xfs_dir_cilookup_result xfs: switch to NOFS allocation under i_lock in xfs_da_buf_make xfs: switch to NOFS allocation under i_lock in xfs_da_state_alloc xfs: switch to NOFS allocation under i_lock in xfs_getbmap xfs: avoid memory allocation under m_peraglock in growfs code
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Don't override ADC definitions for ALC codecs ALSA: hda - Add missing vmaster initialization for ALC269 ASoC: Add missing DRV_NAME definitions for fsl/* drivers
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6由 Linus Torvalds 提交于
* 'zerolen' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6: Remove zero-length file drivers/mtd/maps/sbc8240.c
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev由 Linus Torvalds 提交于
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: ahci: add workaround for on-board 5723s on some gigabyte boards ahci: Soften up the dmesg on SB600 PMP softreset failure recovery Documentation/kernel-parameters.txt: document libata's ignore_hpa option sata_nv: MSI support, disabled by default libata: OCZ Vertex can't do HPA pata_atiixp: fix second channel support pata_at91: fix resource release
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由 Trond Myklebust 提交于
We can't call nfs_readdata_release()/nfs_writedata_release() without first initialising and referencing args.context. Doing so inside nfs_direct_read_schedule_segment()/nfs_direct_write_schedule_segment() causes an Oops. We should rather be calling nfs_readdata_free()/nfs_writedata_free() in those cases. Looking at the O_DIRECT code, the "struct nfs_direct_req" is already referencing the nfs_open_context for us. Since the readdata and writedata structures carry a reference to that, we can simplify things by getting rid of the extra nfs_open_context references, so that we can replace all instances of nfs_readdata_release()/nfs_writedata_release(). Reported-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Tested-by: NCatalin Marinas <catalin.marinas@arm.com> Cc: stable@kernel.org Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Jeff Garzik 提交于
It was "deleted" in commit 2bf961b7Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Tejun Heo 提交于
Some gigabytes have on-board SIMG5723s connected to JMB ahcis. These are used to implement hardware raid. Unfortunately some firmware revisions on these 5723s don't bring the link down when all the downstream ports are unoccupied while not responding to reset protocol which makes libata think that there's device attached to the port but is not responding and retry. This results in painfully wrong boot detection time for these ports when they're empty. This patch quirks those boards such that ahci gives up after the initial timeout. Combined with parallel probing, this gives quick enough probing and also is safe because SIMG5723 will respond to the first try if any of the downstream ports is occupied. Signed-off-by: NTejun Heo <tj@kernel.org> Reported-by: NMarc Bowes <marcbowes@gmail.com> Reported-by: NNicolas Mailhot <Nicolas.Mailhot@LaPoste.net> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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由 Shane Huang 提交于
Too strong words led to spurious bug reports: Novell bugzilla #527748, RedHat bugzilla #468800. This patch is used to soften up the dmesg on SB600 PMP softreset failure recovery, so as to remove the scariness and concern from community. Reported-by: Npgnet Dev <pgnet.dev@gmail.com> Signed-off-by: NShane Huang <shane.huang@amd.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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