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Commit 58e45fd4 authored by Olav Haugan's avatar Olav Haugan
Browse files

sched: Export wake_to_idle API 



Export wake_to_idle APIs so that external modules can access these
functions to improve performance.

Change-Id: I0863a2e80a303c7584ca52ef81c19d369e840662
Signed-off-by: default avatarOlav Haugan <ohaugan@codeaurora.org>
parent 5bc0e57c

include/linux/sched.h

+11 −3
Original line number Diff line number Diff line
@@ -184,6 +184,8 @@ extern void sched_get_nr_running_avg(int *avg, int *iowait_avg, int *big_avg, 
				     unsigned int *big_max_nr);

extern unsigned int sched_get_cpu_util(int cpu);

extern u64 sched_get_cpu_last_busy_time(int cpu);

extern u32 sched_get_wake_up_idle(struct task_struct *p);

extern int sched_set_wake_up_idle(struct task_struct *p, int wake_up_idle);

#else

static inline void sched_update_nr_prod(int cpu, long delta, bool inc)

{
@@ -201,6 +203,15 @@ static inline u64 sched_get_cpu_last_busy_time(int cpu) 
{

	return 0;

}

static inline u32 sched_get_wake_up_idle(struct task_struct *p)

{

	return 0;

}

static inline int sched_set_wake_up_idle(struct task_struct *p,

					 int wake_up_idle)

{

	return 0;

}

#endif



extern void calc_global_load(unsigned long ticks);
@@ -2724,9 +2735,6 @@ struct sched_load { 
	unsigned long predicted_load;

};



extern int sched_set_wake_up_idle(struct task_struct *p, int wake_up_idle);

extern u32 sched_get_wake_up_idle(struct task_struct *p);



struct cpu_cycle_counter_cb {

	u64 (*get_cpu_cycle_counter)(int cpu);

};

kernel/sched/fair.c

+2 −0
Original line number Diff line number Diff line
@@ -2769,6 +2769,7 @@ u32 sched_get_wake_up_idle(struct task_struct *p) 


	return !!enabled;

}

EXPORT_SYMBOL(sched_get_wake_up_idle);



int sched_set_wake_up_idle(struct task_struct *p, int wake_up_idle)

{
@@ -2781,6 +2782,7 @@ int sched_set_wake_up_idle(struct task_struct *p, int wake_up_idle) 


	return 0;

}

EXPORT_SYMBOL(sched_set_wake_up_idle);



/* Precomputed fixed inverse multiplies for multiplication by y^n */

static const u32 runnable_avg_yN_inv[] = {