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ANDROID: cpuidle: Move vendor hook to enter proper state

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The hook may modify index. In that case, target_state and
related values should be assigned and pre-processing should
be executed according to the modified index.

Bug: 183690687

Signed-off-by: Choonghoon Park <choong.park@samsung.com>
Change-Id: Ie641270f9560d0e4a5b4890b7f63ccc5a31277db
This commit is contained in:
Choonghoon Park 2021-03-25 21:47:21 +09:00
parent 311e1c831c
commit 75e40a17f0
1 changed files with 10 additions and 3 deletions
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13
drivers/cpuidle/cpuidle.c
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@ -203,10 +203,18 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
{
int entered_state;
struct cpuidle_state *target_state = &drv->states[index];
bool broadcast = !!(target_state->flags & CPUIDLE_FLAG_TIMER_STOP);
struct cpuidle_state *target_state;
bool broadcast;
ktime_t time_start, time_end;
/*
* The vendor hook may modify index, which means target_state and
* broadcast must be assigned after the vendor hook.
*/
trace_android_vh_cpu_idle_enter(&index, dev);
target_state = &drv->states[index];
broadcast = !!(target_state->flags & CPUIDLE_FLAG_TIMER_STOP);
/*
* Tell the time framework to switch to a broadcast timer because our
* local timer will be shut down. If a local timer is used from another
@ -229,7 +237,6 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
/* Take note of the planned idle state. */
sched_idle_set_state(target_state);
trace_android_vh_cpu_idle_enter(&index, dev);
trace_cpu_idle(index, dev->cpu);
time_start = ns_to_ktime(local_clock());