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Commit 8cd9db48 authored by Puja Gupta's avatar Puja Gupta
Browse files

sched: improve the scheduler 



This change is for general scheduler improvement.

CRs-Fixed: 2110273
Change-Id: Icdaa19125c0351426d5545393dad776690b75b76
Signed-off-by: default avatarPuja Gupta <pujag@codeaurora.org>
parent 2f80a4ec

include/linux/sched.h

+1 −0
Original line number Diff line number Diff line
@@ -3960,6 +3960,7 @@ static inline unsigned long rlimit_max(unsigned int limit) 
#define SCHED_CPUFREQ_INTERCLUSTER_MIG (1U << 3)

#define SCHED_CPUFREQ_WALT (1U << 4)

#define SCHED_CPUFREQ_PL	(1U << 5)

#define SCHED_CPUFREQ_EARLY_DET	(1U << 6)



#define SCHED_CPUFREQ_RT_DL	(SCHED_CPUFREQ_RT | SCHED_CPUFREQ_DL)

kernel/sched/core.c

+4 −1
Original line number Diff line number Diff line
@@ -3305,6 +3305,7 @@ void scheduler_tick(void) 
	bool early_notif;

	u32 old_load;

	struct related_thread_group *grp;

	unsigned int flag = 0;



	sched_clock_tick();
@@ -3321,10 +3322,12 @@ void scheduler_tick(void) 
	cpu_load_update_active(rq);

	calc_global_load_tick(rq);

	sched_freq_tick(cpu);

	cpufreq_update_util(rq, 0);



	early_notif = early_detection_notify(rq, wallclock);

	if (early_notif)

		flag = SCHED_CPUFREQ_WALT | SCHED_CPUFREQ_EARLY_DET;



	cpufreq_update_util(rq, flag);

	raw_spin_unlock(&rq->lock);



	if (early_notif)

kernel/sched/sched.h

+1 −1
Original line number Diff line number Diff line
@@ -2291,7 +2291,7 @@ static inline void cpufreq_update_util(struct rq *rq, unsigned int flags) 


#ifdef CONFIG_SCHED_WALT

	unsigned int exception_flags = SCHED_CPUFREQ_INTERCLUSTER_MIG |

						SCHED_CPUFREQ_PL;

				SCHED_CPUFREQ_PL | SCHED_CPUFREQ_EARLY_DET;



	/*

	 * Skip if we've already reported, but not if this is an inter-cluster