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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 13:07:55 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 13:07:55 -0700 |
commit | b278240839e20fa9384ea430df463b367b90e04e (patch) | |
tree | f99f0c8cdd4cc7f177cd75440e6bd181cded7fb3 /arch/x86_64/kernel/mce_intel.c | |
parent | dd77a4ee0f3981693d4229aa1d57cea9e526ff47 (diff) | |
parent | 3f75f42d7733e73aca5c78326489efd4189e0111 (diff) | |
download | linux-stable-b278240839e20fa9384ea430df463b367b90e04e.tar.gz linux-stable-b278240839e20fa9384ea430df463b367b90e04e.tar.bz2 linux-stable-b278240839e20fa9384ea430df463b367b90e04e.zip |
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits)
[PATCH] Don't set calgary iommu as default y
[PATCH] i386/x86-64: New Intel feature flags
[PATCH] x86: Add a cumulative thermal throttle event counter.
[PATCH] i386: Make the jiffies compares use the 64bit safe macros.
[PATCH] x86: Refactor thermal throttle processing
[PATCH] Add 64bit jiffies compares (for use with get_jiffies_64)
[PATCH] Fix unwinder warning in traps.c
[PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1
[PATCH] x86: Move direct PCI scanning functions out of line
[PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI
[PATCH] Don't leak NT bit into next task
[PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder
[PATCH] Fix some broken white space in ia32_signal.c
[PATCH] Initialize argument registers for 32bit signal handlers.
[PATCH] Remove all traces of signal number conversion
[PATCH] Don't synchronize time reading on single core AMD systems
[PATCH] Remove outdated comment in x86-64 mmconfig code
[PATCH] Use string instructions for Core2 copy/clear
[PATCH] x86: - restore i8259A eoi status on resume
[PATCH] i386: Split multi-line printk in oops output.
...
Diffstat (limited to 'arch/x86_64/kernel/mce_intel.c')
-rw-r--r-- | arch/x86_64/kernel/mce_intel.c | 30 |
1 files changed, 9 insertions, 21 deletions
diff --git a/arch/x86_64/kernel/mce_intel.c b/arch/x86_64/kernel/mce_intel.c index 8f533d2c40cb..6551505d8a2c 100644 --- a/arch/x86_64/kernel/mce_intel.c +++ b/arch/x86_64/kernel/mce_intel.c @@ -11,36 +11,21 @@ #include <asm/mce.h> #include <asm/hw_irq.h> #include <asm/idle.h> - -static DEFINE_PER_CPU(unsigned long, next_check); +#include <asm/therm_throt.h> asmlinkage void smp_thermal_interrupt(void) { - struct mce m; + __u64 msr_val; ack_APIC_irq(); exit_idle(); irq_enter(); - if (time_before(jiffies, __get_cpu_var(next_check))) - goto done; - - __get_cpu_var(next_check) = jiffies + HZ*300; - memset(&m, 0, sizeof(m)); - m.cpu = smp_processor_id(); - m.bank = MCE_THERMAL_BANK; - rdtscll(m.tsc); - rdmsrl(MSR_IA32_THERM_STATUS, m.status); - if (m.status & 0x1) { - printk(KERN_EMERG - "CPU%d: Temperature above threshold, cpu clock throttled\n", m.cpu); - add_taint(TAINT_MACHINE_CHECK); - } else { - printk(KERN_EMERG "CPU%d: Temperature/speed normal\n", m.cpu); - } - mce_log(&m); -done: + rdmsrl(MSR_IA32_THERM_STATUS, msr_val); + if (therm_throt_process(msr_val & 1)) + mce_log_therm_throt_event(smp_processor_id(), msr_val); + irq_exit(); } @@ -92,6 +77,9 @@ static void __cpuinit intel_init_thermal(struct cpuinfo_x86 *c) apic_write(APIC_LVTTHMR, l & ~APIC_LVT_MASKED); printk(KERN_INFO "CPU%d: Thermal monitoring enabled (%s)\n", cpu, tm2 ? "TM2" : "TM1"); + + /* enable thermal throttle processing */ + atomic_set(&therm_throt_en, 1); return; } |