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linux-2.6
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Merge branch 'cpuidle-perf-events' into idle-test

This commit is contained in:
Len Brown 2011-01-12 18:06:19 -05:00
parent 56dbed129d f77cfe4ea2
commit 43952886f0
5 changed files with 12 additions and 16 deletions
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6
arch/x86/kernel/process.c
View File

@ -381,6 +381,8 @@ void default_idle(void)
else
local_irq_enable();
current_thread_info()->status |= TS_POLLING;
trace_power_end(smp_processor_id());
trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
} else {
local_irq_enable();
/* loop is done by the caller */
@ -438,8 +440,6 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
*/
void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
{
trace_power_start(POWER_CSTATE, (ax>>4)+1, smp_processor_id());
trace_cpu_idle((ax>>4)+1, smp_processor_id());
if (!need_resched()) {
if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR))
clflush((void *)&current_thread_info()->flags);
@ -466,6 +466,8 @@ static void mwait_idle(void)
__sti_mwait(0, 0);
else
local_irq_enable();
trace_power_end(smp_processor_id());
trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
} else
local_irq_enable();
}

4
arch/x86/kernel/process_32.c
View File

@ -57,8 +57,6 @@
#include <asm/syscalls.h>
#include <asm/debugreg.h>
#include <trace/events/power.h>
asmlinkage void ret_from_fork(void) __asm__("ret_from_fork");
/*
@ -113,8 +111,6 @@ void cpu_idle(void)
stop_critical_timings();
pm_idle();
start_critical_timings();
trace_power_end(smp_processor_id());
trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
}
tick_nohz_restart_sched_tick();
preempt_enable_no_resched();

6
arch/x86/kernel/process_64.c
View File

@ -51,8 +51,6 @@
#include <asm/syscalls.h>
#include <asm/debugreg.h>
#include <trace/events/power.h>
asmlinkage extern void ret_from_fork(void);
DEFINE_PER_CPU(unsigned long, old_rsp);
@ -141,10 +139,6 @@ void cpu_idle(void)
pm_idle();
start_critical_timings();
trace_power_end(smp_processor_id());
trace_cpu_idle(PWR_EVENT_EXIT,
smp_processor_id());
/* In many cases the interrupt that ended idle
has already called exit_idle. But some idle
loops can be woken up without interrupt. */

10
drivers/cpuidle/cpuidle.c
View File

@ -96,7 +96,15 @@ static void cpuidle_idle_call(void)
/* enter the state and update stats */
dev->last_state = target_state;
trace_power_start(POWER_CSTATE, next_state, dev->cpu);
trace_cpu_idle(next_state, dev->cpu);
dev->last_residency = target_state->enter(dev, target_state);
trace_power_end(dev->cpu);
trace_cpu_idle(PWR_EVENT_EXIT, dev->cpu);
if (dev->last_state)
target_state = dev->last_state;
@ -106,8 +114,6 @@ static void cpuidle_idle_call(void)
/* give the governor an opportunity to reflect on the outcome */
if (cpuidle_curr_governor->reflect)
cpuidle_curr_governor->reflect(dev);
trace_power_end(smp_processor_id());
trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
}
/**

2
drivers/idle/intel_idle.c
View File

@ -231,8 +231,6 @@ static int intel_idle(struct cpuidle_device *dev, struct cpuidle_state *state)
kt_before = ktime_get_real();
stop_critical_timings();
trace_power_start(POWER_CSTATE, (eax >> 4) + 1, cpu);
trace_cpu_idle((eax >> 4) + 1, cpu);
if (!need_resched()) {
__monitor((void *)&current_thread_info()->flags, 0, 0);