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cpuidle/idle: Move the cpuidle_idle_call function to idle.c

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The cpuidle_idle_call does nothing more than calling the three individuals
function and is no longer used by any arch specific code but only in the
cpuidle framework code.

We can move this function into the idle task code to ensure better
proximity to the scheduler code.

Signed-off-by: Daniel Lezcano <[email protected]>
Acked-by: Nicolas Pitre <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Daniel Lezcano 2014-03-03 08:48:51 +01:00 • committed by Ingo Molnar
commit 30cdd69e2a
3 changed files with 56 additions and 51 deletions
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49
drivers/cpuidle/cpuidle.c
View file

@ -172,55 +172,6 @@ void cpuidle_reflect(struct cpuidle_device *dev, int index)
cpuidle_curr_governor->reflect(dev, index);
}
/**
* cpuidle_idle_call - the main idle loop
*
* NOTE: no locks or semaphores should be used here
* return non-zero on failure
*/
int cpuidle_idle_call(void)
{
struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
int next_state, entered_state, ret;
bool broadcast;
ret = cpuidle_enabled(drv, dev);
if (ret < 0)
return ret;
/* ask the governor for the next state */
next_state = cpuidle_select(drv, dev);
if (need_resched()) {
dev->last_residency = 0;
/* give the governor an opportunity to reflect on the outcome */
cpuidle_reflect(dev, next_state);
local_irq_enable();
return 0;
}
broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP);
if (broadcast &&
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu))
return -EBUSY;
trace_cpu_idle_rcuidle(next_state, dev->cpu);
entered_state = cpuidle_enter(drv, dev, next_state);
trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
if (broadcast)
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
/* give the governor an opportunity to reflect on the outcome */
cpuidle_reflect(dev, entered_state);
return 0;
}
/**
* cpuidle_install_idle_handler - installs the cpuidle idle loop handler
*/