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Commit bff77808 authored by Pavankumar Kondeti's avatar Pavankumar Kondeti
Browse files

sched: walt: Improve the scheduler 



This change is for general scheduler improvements.

Change-Id: I4623a59eca688209110c347d388df2a2839a6287
Signed-off-by: default avatarPavankumar Kondeti <pkondeti@codeaurora.org>
parent a7ee6826

kernel/sched/cpufreq_schedutil.c

+1 −1
Original line number Diff line number Diff line
@@ -265,7 +265,7 @@ static void sugov_deferred_update(struct sugov_policy *sg_policy, u64 time, 


	if (use_pelt())

		sg_policy->work_in_progress = true;

	sched_irq_work_queue(&sg_policy->irq_work);

	irq_work_queue(&sg_policy->irq_work);

}



#define TARGET_LOAD 80

kernel/sched/sched.h

+0 −10
Original line number Diff line number Diff line
@@ -3087,13 +3087,3 @@ struct sched_avg_stats { 
	int nr_scaled;

};

extern void sched_get_nr_running_avg(struct sched_avg_stats *stats);
 


#ifdef CONFIG_SMP

static inline void sched_irq_work_queue(struct irq_work *work)

{

	if (likely(cpu_online(raw_smp_processor_id())))

		irq_work_queue(work);

	else

		irq_work_queue_on(work, cpumask_any(cpu_online_mask));

}

#endif

kernel/sched/walt.c

+10 −2
Original line number Diff line number Diff line
@@ -202,6 +202,14 @@ early_param("sched_predl", set_sched_predl); 
__read_mostly unsigned int walt_scale_demand_divisor;

#define scale_demand(d) ((d)/walt_scale_demand_divisor)



static inline void walt_irq_work_queue(struct irq_work *work)

{

	if (likely(cpu_online(raw_smp_processor_id())))

		irq_work_queue(work);

	else

		irq_work_queue_on(work, cpumask_any(cpu_online_mask));

}



void inc_rq_walt_stats(struct rq *rq, struct task_struct *p)

{

	inc_nr_big_task(&rq->walt_stats, p);
@@ -971,7 +979,7 @@ void fixup_busy_time(struct task_struct *p, int new_cpu) 
	if (!same_freq_domain(new_cpu, task_cpu(p))) {

		src_rq->notif_pending = true;

		dest_rq->notif_pending = true;

		sched_irq_work_queue(&walt_migration_irq_work);

		walt_irq_work_queue(&walt_migration_irq_work);

	}



	if (is_ed_enabled()) {
@@ -2061,7 +2069,7 @@ static inline void run_walt_irq_work(u64 old_window_start, struct rq *rq) 
	result = atomic64_cmpxchg(&walt_irq_work_lastq_ws, old_window_start,

				   rq->window_start);

	if (result == old_window_start)

		sched_irq_work_queue(&walt_cpufreq_irq_work);

		walt_irq_work_queue(&walt_cpufreq_irq_work);

}



/* Reflect task activity on its demand and cpu's busy time statistics */