- 13 Apr, 2010 4 commits
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David S. Miller authored
The generic stack tracer does this job just as well. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Check function_trace_stop at ftrace_caller Toss mcount_call and dummy call of ftrace_stub, unnecessary. Document problems we'll have if the final kernel image link ever turns on relaxation. Properly size 'ftrace_call' so it looks right when inspecting instructions under gdb et al. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
If we are in an NMI then doing a plain raw_local_irq_disable() will write PIL_NORMAL_MAX into %pil, which is lower than PIL_NMI, and thus we'll re-enable NMIs and recurse. Doing a simple: %pil = %pil | PIL_NORMAL_MAX does what we want, if we're already at PIL_NMI (15) we leave it at that setting, else we set it to PIL_NORMAL_MAX (14). This should get the function tracer working on sparc64. Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
This gets rid of a local function (is_kernel_stack()) which tries to do the same thing, yet poorly in that it doesn't handle IRQ stacks properly. Signed-off-by: David S. Miller <davem@davemloft.net>
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- 04 Apr, 2010 2 commits
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David S. Miller authored
These just represent the secondary and further heads attached to the card, and they have different sets of PCI bar registers to map. So don't try to drive them in the main driver. Reported-by: Frans van Berckel <fberckel@xs4all.nl> Tested-by: Frans van Berckel <fberckel@xs4all.nl> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
We provide regs->tstate, regs->tpc, regs->tnpc and regs->u_regs[UREG_FP]. regs->tstate is necessary for: user_mode() (via perf_exclude_event()) perf_misc_flags() (via perf_prepare_sample()) regs->tpc is necessary for: perf_instruction_pointer() (via perf_prepare_sample()) and regs->u_regs[UREG_FP] is necessary for: perf_callchain() (via perf_prepare_sample()) The regs->tnpc value is provided just to be tidy. Signed-off-by: David S. Miller <davem@davemloft.net>
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- 03 Apr, 2010 10 commits
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
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Ben Hutchings authored
vmemmap_populate() attempts to report the used index and total size of vmemmap_table, but it wrongly shifts the total size so that it is always shown as 0. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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Linus Torvalds authored
* master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 5965/1: Fix soft lockup in at91 udc driver ARM: 6006/1: ARM: Use the correct NOP size in memmove for Thumb-2 kernel builds ARM: 6005/1: arm: kprobes: fix register corruption with jprobes ARM: 6003/1: removing compilation warning from pl061.h ARM: 6001/1: removing compilation warning comming from clkdev.h ARM: 6000/1: removing compilation warning comming from <asm/irq.h> ARM: 5999/1: Including device.h and resource.h header files in linux/amba/bus.h ARM: 5997/1: ARM: Correct the VFPv3 detection ARM: 5996/1: ARM: Change the mandatory barriers implementation (4/4) ARM: 5995/1: ARM: Add L2x0 outer_sync() support (3/4) ARM: 5994/1: ARM: Add outer_cache_fns.sync function pointer (2/4) ARM: 5993/1: ARM: Move the outer_cache definitions into a separate file (1/4)
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git://git.secretlab.ca/git/linux-2.6Linus Torvalds authored
* 'merge' of git://git.secretlab.ca/git/linux-2.6: powerpc/5200: in lpbfifo, flag DMA irqs as enabled after requesting them powerpc/fsl: add device tree binding for QE firmware of/flattree: Fix unhandled OF_DT_NOP tag when unflattening the device tree
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Linus Torvalds authored
Merge branch 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing * 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: reiserfs: Fix locking BUG during mount failure
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Clemens Ladisch authored
The missing initialization of the nb_cntl.strap_msi_enable does not seem to be the only problem that prevents MSI, so that quirk is not sufficient to enable MSI on all machines. To be safe, disable MSI unconditionally for the internal graphics and HDMI audio on these chipsets. [rjw: Added the PCI_VENDOR_ID_AI quirk.] Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdbLinus Torvalds authored
* 'kgdb-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kgdb: Turn off tracing while in the debugger kgdb: use atomic_inc and atomic_dec instead of atomic_set kgdb: eliminate kgdb_wait(), all cpus enter the same way kgdbts,sh: Add in breakpoint pc offset for superh kgdb: have ebin2mem call probe_kernel_write once
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6Linus Torvalds authored
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6: Freezer: Fix buggy resume test for tasks frozen with cgroup freezer Freezer: Only show the state of tasks refusing to freeze
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Oleg Nesterov authored
release_one_tty(tty) can be called when tty still has a reference to pgrp/session. In this case we leak the pid. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reported-by: Catalin Marinas <catalin.marinas@arm.com> Reported-and-tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 02 Apr, 2010 9 commits
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Jason Wessel authored
The kernel debugger should turn off kernel tracing any time the debugger is active and restore it on resume. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
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Jason Wessel authored
Memory barriers should be used for the kgdb cpu synchronization. The atomic_set() does not imply a memory barrier. Reported-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
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Jason Wessel authored
This is a kgdb architectural change to have all the cpus (master or slave) enter the same function. A cpu that hits an exception (wants to be the master cpu) will call kgdb_handle_exception() from the trap handler and then invoke a kgdb_roundup_cpu() to synchronize the other cpus and bring them into the kgdb_handle_exception() as well. A slave cpu will enter kgdb_handle_exception() from the kgdb_nmicallback() and set the exception state to note that the processor is a slave. Previously the salve cpu would have called kgdb_wait(). This change allows the debug core to change cpus without resuming the system in order to inspect arch specific cpu information. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
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Jason Wessel authored
The kgdb test suite mimics the behavior of gdb. For the sh architecture the pc must be decremented by 2 for software breakpoint. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Paul Mundt <lethal@linux-sh.org>
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Jason Wessel authored
Rather than call probe_kernel_write() one byte at a time, process the whole buffer locally and pass the entire result in one go. This way, architectures that need to do special handling based on the length can do so, or we only end up calling memcpy() once. [sonic.zhang@analog.com: Reported original problem and preliminary patch] Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: Add NOGET quirk for Quanta Pixart touchscreen HID: fix oops in gyration_event()
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds authored
* 'sh/for-2.6.34' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix up the SH-3 build for recent TLB changes. sh: export return_address() symbol. sh: Enable the mmu in start_secondary() sh: Fix FDPIC binary loader arch/sh/kernel: Use set_cpus_allowed_ptr sh: Update ecovec_defconfig USB gadget r8a66597-udc.c: duplicated include sh: update the TLB replacement counter for entry wiring.
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Paul Mundt authored
While the MMUCR.URB and ITLB/UTLB differentiation works fine for all SH-4 and later TLBs, these features are absent on SH-3. This splits out local_flush_tlb_all() in to SH-4 and PTEAEX copies while restoring the old SH-3 one, subsequently fixing up the build. This will probably want some further reordering and tidying in the future, but that's out of scope at present. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
This is needed with some of the tracing code built as modules, so provide the export. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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- 01 Apr, 2010 15 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6Linus Torvalds authored
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (76 commits) drm/radeon/kms: enable ACPI powermanagement mode on radeon gpus. drm/radeon/kms: rs400/480 should set common registers. drm/radeon/kms: add sanity check to wptr. drm/radeon/kms/evergreen: get DP working drm/radeon/kms: add hw_i2c module option drm/radeon/kms: use new pre/post_xfer i2c bit algo hooks drm/radeon/kms: disable MSI on IGP chips drm/radeon/kms: display watermark updates (v2) drm/radeon/kms/dp: disable training pattern on the sink at the end of link training drm/radeon/kms: minor fixes for eDP with LCD* device tags (v2) drm/radeon/kms/dp: remove extraneous training complete call drm/radeon/kms/atom: minor fixes to transmitter setup drm/radeon/kms: Only restrict BO to visible VRAM size when pinning to VRAM. drm: fix build error when SYSRQ is disabled drm/radeon/kms: fix macbookpro connector quirk drm/radeon/r6xx/r7xx: further safe reg clean up drm/radeon: bump the UMS driver version for r6xx/r7xx const buffer support drm/radeon/kms: bump the version for r6xx/r7xx const buffer support drm/radeon/r6xx/r7xx: CS parser fixes drm/radeon/kms: fix some typos in r6xx/r7xx hpd setup ... Fix up MSI-related conflicts in drivers/gpu/drm/radeon/radeon_irq_kms.c
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git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds authored
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze: (35 commits) microblaze: Support word copying in copy_tofrom_user microblaze: Print early printk information to log buffer microblaze: head.S typo fix microblaze: Use MICROBLAZE_TLB_SIZE in asm code microblaze: Kconfig Fix - pci microblaze: Adding likely macros microblaze: Add .type and .size to ASM functions microblaze: Fix TLB macros microblaze: Use instruction with delay slot microblaze: Remove additional resr and rear loading microblaze: Change register usage for ESR and EAR microblaze: Prepare work for optimization in exception code microblaze: Add DEBUG option microblaze: Support systems without lmb bram microblaze: uaccess: Sync strlen, strnlen, copy_to/from_user microblaze: uaccess: Unify __copy_tofrom_user microblaze: uaccess: Move functions to generic location microblaze: uaccess: Fix put_user for noMMU microblaze: uaccess: Fix get_user macro for noMMU microblaze: uaccess: fix clear_user for noMMU kernel ...
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Linus Torvalds authored
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: eeepc-wmi: new driver for WMI based hotkeys on Eee PC laptops asus-laptop: fix warning in asus_handle_init
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Oleg Nesterov authored
proc_oom_score(task) has a reference to task_struct, but that is all. If this task was already released before we take tasklist_lock - we can't use task->group_leader, it points to nowhere - it is not safe to call badness() even if this task is ->group_leader, has_intersects_mems_allowed() assumes it is safe to iterate over ->thread_group list. - even worse, badness() can hit ->signal == NULL Add the pid_alive() check to ensure __unhash_process() was not called. Also, use "task" instead of task->group_leader. badness() should return the same result for any sub-thread. Currently this is not true, but this should be changed anyway. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Michal Simek authored
Word copying is used only for aligned addresses. Here is space for improving to use any better copying technique. Look at memcpy implementation. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
If early printk console is not enabled then all messages are written to log buffer. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
I forget to change register name in comments. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
TLB size was hardcoded in asm code. This patch brings ability to change TLB size only in one place. (mmu.h). Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
I forget to remove pci Kconfig option. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
On the base on GCOV analytics is helpful to add likely/unlikely macros. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Cachegrind analysis need this fix to be able to log asm functions. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
To be able to do trace TLB operations. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
Sync labels. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
RESR and REAR uses the same regs in whole file. Signed-off-by: Michal Simek <monstr@monstr.eu>
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Michal Simek authored
This change synchronize register usage in code. ESR = R4 EAR = R3 Signed-off-by: Michal Simek <monstr@monstr.eu>
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