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path: root/drivers/cpuidle/cpuidle.c
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Diffstat (limited to 'drivers/cpuidle/cpuidle.c')
-rw-r--r--drivers/cpuidle/cpuidle.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 48b7228563ad..17a6dc0e2111 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -123,6 +123,7 @@ static void enter_freeze_proper(struct cpuidle_driver *drv,
* cpuidle mechanism enables interrupts and doing that with timekeeping
* suspended is generally unsafe.
*/
+ stop_critical_timings();
drv->states[index].enter_freeze(dev, drv, index);
WARN_ON(!irqs_disabled());
/*
@@ -131,6 +132,7 @@ static void enter_freeze_proper(struct cpuidle_driver *drv,
* critical sections, so tell RCU about that.
*/
RCU_NONIDLE(tick_unfreeze());
+ start_critical_timings();
}
/**
@@ -195,7 +197,9 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
trace_cpu_idle_rcuidle(index, dev->cpu);
time_start = ktime_get();
+ stop_critical_timings();
entered_state = target_state->enter(dev, drv, index);
+ start_critical_timings();
time_end = ktime_get();
trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
@@ -210,7 +214,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
tick_broadcast_exit();
}
- if (!cpuidle_state_is_coupled(dev, drv, entered_state))
+ if (!cpuidle_state_is_coupled(drv, entered_state))
local_irq_enable();
diff = ktime_to_us(ktime_sub(time_end, time_start));
@@ -259,7 +263,7 @@ int cpuidle_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
int cpuidle_enter(struct cpuidle_driver *drv, struct cpuidle_device *dev,
int index)
{
- if (cpuidle_state_is_coupled(dev, drv, index))
+ if (cpuidle_state_is_coupled(drv, index))
return cpuidle_enter_state_coupled(dev, drv, index);
return cpuidle_enter_state(dev, drv, index);
}