mmc: bfin_sdh: set timeout based on actual card data
[safe/jmp/linux-2.6] / drivers / cpuidle / cpuidle.c
index 23554b6..12fdd39 100644 (file)
@@ -16,6 +16,8 @@
 #include <linux/cpu.h>
 #include <linux/cpuidle.h>
 #include <linux/ktime.h>
+#include <linux/hrtimer.h>
+#include <trace/events/power.h>
 
 #include "cpuidle.h"
 
@@ -56,25 +58,44 @@ static void cpuidle_idle_call(void)
                if (pm_idle_old)
                        pm_idle_old();
                else
+#if defined(CONFIG_ARCH_HAS_DEFAULT_IDLE)
+                       default_idle();
+#else
                        local_irq_enable();
+#endif
                return;
        }
 
+#if 0
+       /* shows regressions, re-enable for 2.6.29 */
+       /*
+        * run any timers that can be run now, at this point
+        * before calculating the idle duration etc.
+        */
+       hrtimer_peek_ahead_timers();
+#endif
        /* ask the governor for the next state */
        next_state = cpuidle_curr_governor->select(dev);
-       if (need_resched())
+       if (need_resched()) {
+               local_irq_enable();
                return;
+       }
+
        target_state = &dev->states[next_state];
 
        /* enter the state and update stats */
-       dev->last_residency = target_state->enter(dev, target_state);
        dev->last_state = target_state;
+       dev->last_residency = target_state->enter(dev, target_state);
+       if (dev->last_state)
+               target_state = dev->last_state;
+
        target_state->time += (unsigned long long)dev->last_residency;
        target_state->usage++;
 
        /* give the governor an opportunity to reflect on the outcome */
        if (cpuidle_curr_governor->reflect)
                cpuidle_curr_governor->reflect(dev);
+       trace_power_end(0);
 }
 
 /**
@@ -94,7 +115,7 @@ void cpuidle_install_idle_handler(void)
  */
 void cpuidle_uninstall_idle_handler(void)
 {
-       if (enabled_devices && (pm_idle != pm_idle_old)) {
+       if (enabled_devices && pm_idle_old && (pm_idle != pm_idle_old)) {
                pm_idle = pm_idle_old;
                cpuidle_kick_cpus();
        }
@@ -340,7 +361,7 @@ static void smp_callback(void *v)
 static int cpuidle_latency_notify(struct notifier_block *b,
                unsigned long l, void *v)
 {
-       smp_call_function(smp_callback, NULL, 0, 1);
+       smp_call_function(smp_callback, NULL, 1);
        return NOTIFY_OK;
 }