- Jan 07, 2011
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Borislav Petkov authored
K8 does not allow for an atomic RMW to a cacheline as F10h does so disable the error injection interface for it. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Make the ->{get|set}_sdram_scrub_rate return the actual scrub rate bandwidth it succeeded setting and remove superfluous arg pointer used for that. A negative value returned still means that an error occurred while setting the scrubrate. Document this for future reference. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Now that all prerequisites are in place, drop the two-stage driver instances initialization in favor of the following simple init sequence: 1. Probe PCI device: we only test ECC capabilities here and if none exit early. 2. If the hw supports ECC and it is/can be enabled, we init the per-node instance. Remove "amd64_" prefix from static functions touched, while at it. There actually should be no visible functional change resulting from this patch. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Rework the code to check the hardware ECC capabilities at PCI probing time. We do all further initialization only if we actually can/have ECC enabled. While at it: 0. Fix function naming. 1. Simplify/clarify debug output. 2. Remove amd64_ prefix from the static functions 3. Reorganize code. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
This is in preparation for the init path reorganization where we want only to 1) test whether a particular node supports ECC 2) can it be enabled and only then do the necessary allocation/initialization. For that, we need to decouple the ECC settings of the node from the instance's descriptor. The should be no functional change introduced by this patch. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
PCI ECS is being enabled by default since 2.6.26 on AMD so this code is just superfluous now, remove it. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
AMD_NB pulls in the dependency on PCI. Clarify/fix help text while at it. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Remove static allocation in favor of dynamically allocating space for as many driver instances as northbridges present on the system. There should be no functional change resulting from this patch. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Add a macro per printk level, shorten up error messages. Add relevant information to KERN_INFO level. No functional change. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Rename variables representing PCI devices to their BKDG names for faster search and shorter, clearer code. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Move the remaining per-family init code into the proper place and simplify the rest of the initialization. Reorganize error handling in amd64_init_one_instance(). Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Shorten code and clarify comments, return proper -E* values on error. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Concentrate CPU family detection in the per-family init function. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
Run a per-family init function which does all the settings based on the family this driver instance is running on. Move the scrubrate calculation in it and simplify code. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
... instead of computing it needlessly again. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Borislav Petkov authored
F11h doesn't support DRAM ECC so whack it away. Signed-off-by:
Borislav Petkov <borislav.petkov@amd.com>
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Linus Torvalds authored
Merge branch 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-amd-nb-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, cacheinfo: Cleanup L3 cache index disable support x86, amd-nb: Cleanup AMD northbridge caching code x86, amd-nb: Complete the rename of AMD NB and related code
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds authored
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: MAINTAINERS: Update timer related entries timers: Use this_cpu_read timerqueue: Make timerqueue_getnext() static inline hrtimer: fix timerqueue conversion flub hrtimers: Convert hrtimers to use timerlist infrastructure timers: Fixup allmodconfig build issue timers: Rename timerlist infrastructure to timerqueue timers: Introduce timerlist infrastructure. hrtimer: Remove stale comment on curr_timer timer: Warn when del_timer_sync() is called in hardirq context timer: Del_timer_sync() can be used in softirq context timer: Make try_to_del_timer_sync() the same on SMP and UP posix-timers: Annotate lock_timer() timer: Permit statically-declared work with deferrable timers time: Use ARRAY_SIZE macro in timecompare.c timer: Initialize the field slack of timer_list timer_list: Remove alignment padding on 64 bit when CONFIG_TIMER_STATS time: Compensate for rounding on odd-frequency clocksources Fix up trivial conflict in MAINTAINERS
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Linus Torvalds authored
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits) sched: Change wait_for_completion_*_timeout() to return a signed long sched, autogroup: Fix reference leak sched, autogroup: Fix potential access to freed memory sched: Remove redundant CONFIG_CGROUP_SCHED ifdef sched: Fix interactivity bug by charging unaccounted run-time on entity re-weight sched: Move periodic share updates to entity_tick() printk: Use this_cpu_{read|write} api on printk_pending sched: Make pushable_tasks CONFIG_SMP dependant sched: Add 'autogroup' scheduling feature: automated per session task groups sched: Fix unregister_fair_sched_group() sched: Remove unused argument dest_cpu to migrate_task() mutexes, sched: Introduce arch_mutex_cpu_relax() sched: Add some clock info to sched_debug cpu: Remove incorrect BUG_ON cpu: Remove unused variable sched: Fix UP build breakage sched: Make task dump print all 15 chars of proc comm sched: Update tg->shares after cpu.shares write sched: Allow update_cfs_load() to update global load sched: Implement demand based update_cfs_load() ...
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Linus Torvalds authored
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (146 commits) tools, perf: Documentation for the power events API perf: Add calls to suspend trace point perf script: Make some lists static perf script: Use the default lost event handler perf session: Warn about errors when processing pipe events too perf tools: Fix perf_event.h header usage perf test: Clarify some error reports in the open syscall test x86, NMI: Add touch_nmi_watchdog to io_check_error delay x86: Avoid calling arch_trigger_all_cpu_backtrace() at the same time x86: Only call smp_processor_id in non-preempt cases perf timechart: Adjust perf timechart to the new power events perf: Clean up power events by introducing new, more generic ones perf: Do not export power_frequency, but power_start event perf test: Add test for counting open syscalls perf evsel: Auto allocate resources needed for some methods perf evsel: Use {cpu,thread}_map to shorten list of parameters perf tools: Refactor all_tids to hold nr and the map perf tools: Refactor cpumap to hold nr and the map perf evsel: Introduce per cpu and per thread open helpers perf evsel: Steal the counter reading routines from stat ...
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Linus Torvalds authored
Merge branch 'core-futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: futex: Add futex_q static initializer futex: Replace fshared and clockrt with combined flags futex: Cleanup stale fshared flag interfaces
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Linus Torvalds authored
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: rcu: remove unused __list_for_each_rcu() macro rculist: fix borked __list_for_each_rcu() macro rcu: reduce __call_rcu()-induced contention on rcu_node structures rcu: limit rcu_node leaf-level fanout rcu: fine-tune grace-period begin/end checks rcu: Keep gpnum and completed fields synchronized rcu: Stop chasing QS if another CPU did it for us rcu: increase synchronize_sched_expedited() batching rcu: Make synchronize_srcu_expedited() fast if running readers rcu: fix race condition in synchronize_sched_expedited() rcu: update documentation/comments for Lai's adoption patch rcu,cleanup: simplify the code when cpu is dying rcu,cleanup: move synchronize_sched_expedited() out of sched.c rcu: get rid of obsolete "classic" names in TREE_RCU tracing rcu: Distinguish between boosting and boosted rcu: document TINY_RCU and TINY_PREEMPT_RCU tracing. rcu: add tracing for TINY_RCU and TINY_PREEMPT_RCU rcu: priority boosting for TINY_PREEMPT_RCU rcu: move TINY_RCU from softirq to kthread rcu: add priority-inversion testing to rcutorture
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git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: GFS2: Don't flush delete workqueue when releasing the transaction lock GFS2: fsck.gfs2 reported statfs error after gfs2_grow GFS2: Merge glock state fields into a bitfield GFS2: Fix uninitialised error value in previous patch GFS2: fix recursive locking during rindex truncates GFS2: reread rindex when necessary to grow rindex GFS2: Remove duplicate #defines from glock.h GFS2: Clean up of gdlm_lock function GFS2: Allow gfs2 to update quota usage values through the quotactl interface GFS2: fs/gfs2/glock.h: Add __attribute__((format(printf,2,3)) to gfs2_print_dbg GFS2: fs/gfs2/glock.c: Use printf extension %pV GFS2: Clean up duplicated setattr code GFS2: Remove unreachable calls to vmtruncate GFS2: fs/gfs2/glock.c: Convert sprintf_symbol to %pS GFS2: Change two WQ_RESCUERs into WQ_MEM_RECLAIM
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Randy Dunlap authored
Move 'main' code vs. subroutines around so that they are not so intermixed, for better readability/understanding (relative to Perl). It was messy to follow the primary flow of code execution with the code being mixed. Now the code begins with data initialization, followed by all subroutines, then ends with the main code execution. This is almost totally source code movement, with a few changes as needed for forward declarations. Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Nicolas Kaiser authored
Fixed typos, and removed duplicated entries. Signed-off-by:
Nicolas Kaiser <nikai@nikai.net> Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Michael Prokop authored
Mainly resulting from (but not limited to) autogenerated files of lib/raid6 and drivers/gpu/drm/radeon. List generated as result of a diff of a clean 2.6.36 tree against a built one. Signed-off-by:
Michael Prokop <mika@grml.org> Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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- Jan 06, 2011
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Jean Pihet authored
Provides documentation for the following: - the new power trace API, - the old (legacy) power trace API, - the DEPRECATED Kconfig option usage. Signed-off-by:
Jean Pihet <j-pihet@ti.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: trenn@suse.de Cc: Len Brown <len.brown@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: linux-pm@lists.linux-foundation.org LKML-Reference: <1294253342-29056-3-git-send-email-j-pihet@ti.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Jean Pihet authored
Uses the machine_suspend trace point, called from the generic kernel suspend_devices_and_enter function. Signed-off-by:
Jean Pihet <j-pihet@ti.com> Acked-by:
Rafael J. Wysocki <rjw@sisk.pl> Cc: Arjan van de Ven <arjan@linux.intel.com> CC: Thomas Renninger <trenn@suse.de> Cc: Len Brown <len.brown@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: linux-pm@lists.linux-foundation.org LKML-Reference: <1294253342-29056-2-git-send-email-j-pihet@ti.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Arnaldo Carvalho de Melo authored
Not accessed outside builtin-script, so make them static. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo authored
That already does what was being done here. The warning is now unconditionally given by __perf_session__process_pipe_events, just like for non pipe processing. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo authored
Just like we do at __perf_session__process_events Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Stephane Eranian authored
This patch fixes the usage of the perf_event.h header file between command modules and the supporting code in util. It is necessary to ensure that ALL files use the SAME perf_event.h header from the kernel source tree. There were a couple of #include <linux/perf_event.h> mixed with #include "../../perf_event.h". This caused issues on some distros because of mismatch in the layout of struct perf_event_attr. That eventually led perf stat to segfault. Cc: David S. Miller <davem@davemloft.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@gmail.com> LKML-Reference: <4d233cf0.2308e30a.7b00.ffffc187@mx.google.com> Signed-off-by:
Stephane Eranian <eranian@google.com> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Arnaldo Carvalho de Melo authored
Rebooted my devel machine, first thing I ran was perf test, that expects debugfs to be mounted, test fails. Be more clear about it. Also add missing newlines and add more informative message when sys_perf_event_open fails. Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <new-submission> Signed-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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- Jan 05, 2011
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Huang Ying authored
Prevent the long delay in io_check_error making NMI watchdog timeout. Signed-off-by:
Huang Ying <ying.huang@intel.com> Signed-off-by:
Don Zickus <dzickus@redhat.com> LKML-Reference: <1294198689-15447-3-git-send-email-dzickus@redhat.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Dongdong Deng authored
The spin_lock_debug/rcu_cpu_stall detector uses trigger_all_cpu_backtrace() to dump cpu backtrace. Therefore it is possible that trigger_all_cpu_backtrace() could be called at the same time on different CPUs, which triggers and 'unknown reason NMI' warning. The following case illustrates the problem: CPU1 CPU2 ... CPU N trigger_all_cpu_backtrace() set "backtrace_mask" to cpu mask | generate NMI interrupts generate NMI interrupts ... \ | / \ | / The "backtrace_mask" will be cleaned by the first NMI interrupt at nmi_watchdog_tick(), then the following NMI interrupts generated by other cpus's arch_trigger_all_cpu_backtrace() will be taken as unknown reason NMI interrupts. This patch uses a test_and_set to avoid the problem, and stop the arch_trigger_all_cpu_backtrace() from calling to avoid dumping a double cpu backtrace info when there is already a trigger_all_cpu_backtrace() in progress. Signed-off-by:
Dongdong Deng <dongdong.deng@windriver.com> Reviewed-by:
Bruce Ashfield <bruce.ashfield@windriver.com> Cc: fweisbec@gmail.com LKML-Reference: <1294198689-15447-2-git-send-email-dzickus@redhat.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
Don Zickus <dzickus@redhat.com>
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Don Zickus authored
There are some paths that walk the die_chain with preemption on. Make sure we are in an NMI call before we start doing anything. This was triggered by do_general_protection calling notify_die with DIE_GPF. Reported-by:
Jan Kiszka <jan.kiszka@web.de> Signed-off-by:
Don Zickus <dzickus@redhat.com> LKML-Reference: <1294198689-15447-1-git-send-email-dzickus@redhat.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
Merge reason: Add the final .37 tree. Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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NeilBrown authored
wait_for_completion_*_timeout() can return: 0: if the wait timed out -ve: if the wait was interrupted +ve: if the completion was completed. As they currently return an 'unsigned long', the last two cases are not easily distinguished which can easily result in buggy code, as is the case for the recently added wait_for_completion_interruptible_timeout() call in net/sunrpc/cache.c So change them both to return 'long'. As MAX_SCHEDULE_TIMEOUT is LONG_MAX, a large +ve return value should never overflow. Signed-off-by:
NeilBrown <neilb@suse.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: J. Bruce Fields <bfields@fieldses.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <20110105125016.64ccab0e@notabene.brown> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Ingo Molnar authored
Merge reason: Merge the final .37 tree. Signed-off-by:
Ingo Molnar <mingo@elte.hu>
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Linus Torvalds authored
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