- 17 6月, 2009 1 次提交
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由 Hidetoshi Seto 提交于
There are 2 headers: arch/x86/include/asm/mce.h arch/x86/kernel/cpu/mcheck/mce.h and in the latter small header: #include <asm/mce.h> This patch move all contents in the latter header into the former, and fix all files using the latter to include the former instead. Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 11 6月, 2009 1 次提交
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由 Hidetoshi Seto 提交于
This patch introduces three boot options (no_cmci, dont_log_ce and ignore_ce) to control handling for corrected errors. The "mce=no_cmci" boot option disables the CMCI feature. Since CMCI is a new feature so having boot controls to disable it will be a help if the hardware is misbehaving. The "mce=dont_log_ce" boot option disables logging for corrected errors. All reported corrected errors will be cleared silently. This option will be useful if you never care about corrected errors. The "mce=ignore_ce" boot option disables features for corrected errors, i.e. polling timer and cmci. All corrected events are not cleared and kept in bank MSRs. Usually this disablement is not recommended, however it will be a help if there are some conflict with the BIOS or hardware monitoring applications etc., that clears corrected events in banks instead of OS. [ And trivial cleanup (space -> tab) for doc is included. ] Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Reviewed-by: NAndi Kleen <ak@linux.intel.com> LKML-Reference: <4A30ACDF.5030408@jp.fujitsu.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 04 6月, 2009 1 次提交
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由 Andi Kleen 提交于
Rename the mce_notify_user function to mce_notify_irq. The next patch will split the wakeup handling of interrupt context and of process context and it's better to give it a clearer name for this. Contains a fix from Ying Huang [ Impact: cleanup ] Signed-off-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Huang Ying <ying.huang@intel.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 29 5月, 2009 4 次提交
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由 Hidetoshi Seto 提交于
Fix for: WARNING: space prohibited between function name and open parenthesis '(' + for_each_online_cpu (cpu) { Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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由 Thomas Gleixner 提交于
Decode magic constants and turn them into symbols. [ Cleanup to use symbols already exists - HS ] [ Impact: cleanup ] Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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由 Thomas Gleixner 提交于
Mechanic unification. No change in code. [ Impact: cleanup, 32-bit / 64-bit unification ] Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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由 Thomas Gleixner 提交于
Prepare for unification, make two intel_init_thermal equal. [ Impact: cleanup ] Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 09 5月, 2009 1 次提交
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由 Huang Weiyi 提交于
Remove duplicated #include in arch/x86/kernel/cpu/mcheck/mce_intel_64.c. [ Impact: cleanup ] Signed-off-by: NHuang Weiyi <weiyi.huang@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 08 5月, 2009 1 次提交
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由 Hidetoshi Seto 提交于
Lockdep reports the warning below when Li tries to offline one cpu: [ 110.835487] ================================= [ 110.835616] [ INFO: inconsistent lock state ] [ 110.835688] 2.6.30-rc4-00336-g8c9ed899 #52 [ 110.835757] --------------------------------- [ 110.835828] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 110.835908] swapper/0 [HC1[1]:SC0[0]:HE0:SE1] takes: [ 110.835982] (cmci_discover_lock){?.+...}, at: [<ffffffff80236dc0>] cmci_clear+0x30/0x9b cmci_clear() can be called via smp_call_function_single(). It is better to disable interrupt while holding cmci_discover_lock, to turn it into an irq-safe lock - we can deadlock otherwise. [ Impact: fix possible deadlock in the MCE code ] Reported-by: NShaohua Li <shaohua.li@intel.com> Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <4A03ED38.8000700@jp.fujitsu.com> Signed-off-by: NIngo Molnar <mingo@elte.hu> Reported-by: Shaohua Li<shaohua.li@intel.com>
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- 16 3月, 2009 1 次提交
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由 Hidetoshi Seto 提交于
Impact: Bug fix on UP Referring commit cc3ca220, Peter removed __cpuinit annotations for mce_cpu_features() and its successor functions, which caused troubles on UP configurations. However the intel_init_cmci() was introduced after that and it also has __cpuinit annotation even though it is called from mce_cpu_features(). Remove the annotation from that function too. Signed-off-by: NHidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 13 3月, 2009 1 次提交
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由 Rusty Russell 提交于
Impact: cleanup 1) &cpu_online_map -> cpu_online_mask 2) first_cpu/next_cpu_nr -> cpumask_first/cpumask_next 3) cpu_*_map manipulation -> init_cpu_* / set_cpu_* Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 25 2月, 2009 2 次提交
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由 H. Peter Anvin 提交于
Impact: Bug fix on UP The MCE code is reinitialized from resume, so we can't use __cpuinit/__cpuexit for most of the code. Remove those annotations for anything downstream of mce_init(). Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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由 Andi Kleen 提交于
Impact: Major new feature Intel CMCI (Corrected Machine Check Interrupt) is a new feature on Nehalem CPUs. It allows the CPU to trigger interrupts on corrected events, which allows faster reaction to them instead of with the traditional polling timer. Also use CMCI to discover shared banks. Machine check banks can be shared by CPU threads or even cores. Using the CMCI enable bit it is possible to detect the fact that another CPU already saw a specific bank. Use this to assign shared banks only to one CPU to avoid reporting duplicated events. On CPU hot unplug bank sharing is re discovered. This is done using a thread that cycles through all the CPUs. To avoid races between the poller and CMCI we only poll for banks that are not CMCI capable and only check CMCI owned banks on a interrupt. The shared banks ownership information is currently only used for CMCI interrupts, not polled banks. The sharing discovery code follows the algorithm recommended in the IA32 SDM Vol3a 14.5.2.1 The CMCI interrupt handler just calls the machine check poller to pick up the machine check event that caused the interrupt. I decided not to implement a separate threshold event like the AMD version has, because the threshold is always one currently and adding another event didn't seem to add any value. Some code inspired by Yunhong Jiang's Xen implementation, which was in term inspired by a earlier CMCI implementation by me. Signed-off-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 21 2月, 2009 1 次提交
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由 H. Peter Anvin 提交于
Impact: Bug fix on UP Checkin 6ec68bff: x86, mce: reinitialize per cpu features on resume introduced a call to mce_cpu_features() in the resume path, in order for the MCE machinery to get properly reinitialized after a resume. However, this function (and its successors) was flagged __cpuinit, which becomes __init on UP configurations (on SMP suspend/resume requires CPU hotplug and so this would not be seen.) Remove the offending __cpuinit annotations for mce_cpu_features() and its successor functions. Cc: Andi Kleen <ak@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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- 20 2月, 2009 2 次提交
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由 Vegard Nossum 提交于
Impact: Cleanup. No functional changes. Signed-off-by: NVegard Nossum <vegard.nossum@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Andi Kleen 提交于
Impact: cleanup This merely factors out duplicated code to set up the initial struct mce state into a single function. Signed-off-by: NAndi Kleen <ak@linux.intel.com> Signed-off-by: NH. Peter Anvin <hpa@linux.intel.com>
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- 18 2月, 2009 1 次提交
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由 Ingo Molnar 提交于
Impact: cleanup Remove genapic.h and remove all references to it. Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 17 2月, 2009 1 次提交
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由 Yinghai Lu 提交于
Impact: cleanup make it simpler, don't need have one extra struct. v2: fix the sgi_uv build Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 23 1月, 2009 1 次提交
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由 Brian Gerst 提交于
Impact: cleanup APIC definitions aren't needed here. Remove the include and fix up the fallout. tj: added include to mce_intel_64.c. Signed-off-by: NBrian Gerst <brgerst@gmail.com> Signed-off-by: NTejun Heo <tj@kernel.org>
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- 17 12月, 2008 1 次提交
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由 Hiroshi Shimamoto 提交于
Impact: cleanup Replace incrementing irq stat with inc_irq_stat() in non-unified functions. Signed-off-by: NHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 24 10月, 2007 1 次提交
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由 Thomas Gleixner 提交于
The x86_64 arch/x86/kernel/Makefile uses references into arch/x86/kernel/cpu/... to use code from there. Unifiy it with the nicely structured i386 way and reuse the existing subdirectory make rules. Also move the machine check related source into ...kernel/cpu/mcheck, where the other machine check related code is. No code change. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 18 10月, 2007 1 次提交
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由 Joe Korty 提交于
Add missing IRQs and IRQ descriptions to /proc/interrupts. /proc/interrupts is most useful when it displays every IRQ vector in use by the system, not just those somebody thought would be interesting. This patch inserts the following vector displays to the i386 and x86_64 platforms, as appropriate: rescheduling interrupts TLB flush interrupts function call interrupts thermal event interrupts threshold interrupts spurious interrupts A threshold interrupt occurs when ECC memory correction is occuring at too high a frequency. Thresholds are used by the ECC hardware as occasional ECC failures are part of normal operation, but long sequences of ECC failures usually indicate a memory chip that is about to fail. Thermal event interrupts occur when a temperature threshold has been exceeded for some CPU chip. IIRC, a thermal interrupt is also generated when the temperature drops back to a normal level. A spurious interrupt is an interrupt that was raised then lowered by the device before it could be fully processed by the APIC. Hence the apic sees the interrupt but does not know what device it came from. For this case the APIC hardware will assume a vector of 0xff. Rescheduling, call, and TLB flush interrupts are sent from one CPU to another per the needs of the OS. Typically, their statistics would be used to discover if an interrupt flood of the given type has been occuring. AK: merged v2 and v4 which had some more tweaks AK: replace Local interrupts with Local timer interrupts AK: Fixed description of interrupt types. [ tglx: arch/x86 adaptation ] [ mingo: small cleanup ] Signed-off-by: NJoe Korty <joe.korty@ccur.com> Signed-off-by: NAndi Kleen <ak@suse.de> Cc: Tim Hockin <thockin@hockin.org> Cc: Andi Kleen <ak@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 11 10月, 2007 2 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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- 26 9月, 2006 2 次提交
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由 Dmitriy Zavin 提交于
The counter is exported to /sys that keeps track of the number of thermal events, such that the user knows how bad the thermal problem might be (since the logging to syslog and mcelog is rate limited). AK: Fixed cpu hotplug locking Signed-off-by: NDmitriy Zavin <dmitriyz@google.com> Signed-off-by: NAndi Kleen <ak@suse.de>
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由 Dmitriy Zavin 提交于
Refactor the event processing (syslog messaging and rate limiting) into separate file therm_throt.c. This allows consistent reporting of CPU thermal throttle events. After ACK'ing the interrupt, if the event is current, the user (p4.c/mce_intel.c) calls therm_throt_process to log (and rate limit) the event. If that function returns 1, the user has the option to log things further (such as to mce_log in x86_64). AK: minor cleanup Signed-off-by: NDmitriy Zavin <dmitriyz@google.com> Signed-off-by: NAndi Kleen <ak@suse.de>
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- 12 1月, 2006 2 次提交
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由 Andi Kleen 提交于
Remove support for obsolete hardware and cleanup. - Remove checks for non integrated APICs - Replace apic_write_around with apic_write. - Remove apic_read_around - Remove APIC version reads used by old workarounds - Remove old workaround for Simics - Fix indentation Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Andi Kleen 提交于
This adds a new notifier chain that is called with IDLE_START when a CPU goes idle and IDLE_END when it goes out of idle. The context can be idle thread or interrupt context. Since we cannot rely on MONITOR/MWAIT existing the idle end check currently has to be done in all interrupt handlers. They were originally inspired by the similar s390 implementation. They have a variety of applications: - They will be needed for CONFIG_NO_IDLE_HZ - They can be used for oprofile to fix up the missing time in idle when performance counters don't tick. - They can be used for better C state management in ACPI - They could be used for microstate accounting. This is just infrastructure so far, no users. Signed-off-by: NAndi Kleen <ak@suse.de> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 26 6月, 2005 1 次提交
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由 Ashok Raj 提交于
This patch adds __cpuinit and __cpuinitdata sections that need to exist past boot to support cpu hotplug. Caveat: This is done *only* for EM64T CPU Hotplug support, on request from Andi Kleen. Much of the generic hotplug code in kernel, and none of the other archs that support CPU hotplug today, i386, ia64, ppc64, s390 and parisc dont mark sections with __cpuinit, but only mark them as __devinit, and __devinitdata. If someone is motivated to change generic code, we need to make sure all existing hotplug code does not break, on other arch's that dont use __cpuinit, and __cpudevinit. Signed-off-by: NAshok Raj <ashok.raj@intel.com> Acked-by: NAndi Kleen <ak@muc.de> Acked-by: NZwane Mwaikambo <zwane@arm.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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