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Viewing changes to arch/x86/kernel/cpu/mcheck/therm_throt.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-04kado7d1u2er2rl
Tags: 3.2.0-16.25
Add new lowlatency kernel flavour

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arch/x86/kernel/cpu/mcheck/therm_throt.c
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#endif /* CONFIG_SYSFS */
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/*
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 * Set up the most two significant bit to notify mce log that this thermal
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 * event type.
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 * This is a temp solution. May be changed in the future with mce log
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 * infrasture.
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 */
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#define CORE_THROTTLED          (0)
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#define CORE_POWER_LIMIT        ((__u64)1 << 62)
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#define PACKAGE_THROTTLED       ((__u64)2 << 62)
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#define PACKAGE_POWER_LIMIT     ((__u64)3 << 62)
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static void notify_thresholds(__u64 msr_val)
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{
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        /* check whether the interrupt handler is defined;
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        if (therm_throt_process(msr_val & THERM_STATUS_PROCHOT,
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                                THERMAL_THROTTLING_EVENT,
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                                CORE_LEVEL) != 0)
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                mce_log_therm_throt_event(CORE_THROTTLED | msr_val);
 
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                mce_log_therm_throt_event(msr_val);
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        if (this_cpu_has(X86_FEATURE_PLN))
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                if (therm_throt_process(msr_val & THERM_STATUS_POWER_LIMIT,
 
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                therm_throt_process(msr_val & THERM_STATUS_POWER_LIMIT,
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                                        POWER_LIMIT_EVENT,
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                                        CORE_LEVEL) != 0)
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                        mce_log_therm_throt_event(CORE_POWER_LIMIT | msr_val);
 
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                                        CORE_LEVEL);
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        if (this_cpu_has(X86_FEATURE_PTS)) {
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                rdmsrl(MSR_IA32_PACKAGE_THERM_STATUS, msr_val);
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                if (therm_throt_process(msr_val & PACKAGE_THERM_STATUS_PROCHOT,
 
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                therm_throt_process(msr_val & PACKAGE_THERM_STATUS_PROCHOT,
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                                        THERMAL_THROTTLING_EVENT,
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                                        PACKAGE_LEVEL) != 0)
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                        mce_log_therm_throt_event(PACKAGE_THROTTLED | msr_val);
 
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                                        PACKAGE_LEVEL);
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                if (this_cpu_has(X86_FEATURE_PLN))
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                        if (therm_throt_process(msr_val &
 
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                        therm_throt_process(msr_val &
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                                        PACKAGE_THERM_STATUS_POWER_LIMIT,
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                                        POWER_LIMIT_EVENT,
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                                        PACKAGE_LEVEL) != 0)
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                                mce_log_therm_throt_event(PACKAGE_POWER_LIMIT
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                                                          | msr_val);
 
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                                        PACKAGE_LEVEL);
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        }
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}
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