Merge branch 'cpuidle-perf-events' into idle-test
Len Brown [Wed, 12 Jan 2011 23:06:19 +0000 (18:06 -0500)]
arch/x86/kernel/process.c
arch/x86/kernel/process_32.c
arch/x86/kernel/process_64.c
drivers/cpuidle/cpuidle.c
drivers/idle/intel_idle.c

index 7c23a0c..d8286ed 100644 (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();
 }
index 4b9befa..8d12878 100644 (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();
index 4c818a7..bd387e8 100644 (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. */
index a2d5b95..bf50924 100644 (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());
 }
 
 /**
index d14585b..7acb32e 100644 (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);