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Commit ecd8f780 authored by Syed Rameez Mustafa's avatar Syed Rameez Mustafa
Browse files

sched/hmp: Use improved information for frequency notifications 



Recent changes to scheduler guided frequency have started reporting
the maximum of the cpu load and the load of the top task on a CPU
to the governor. Use the same information to determine whether a
notification is necessary or not.

Change-Id: I1928c6cd0509952443a912ef54e0d72d5f75955d
Signed-off-by: default avatarSyed Rameez Mustafa <rameezmustafa@codeaurora.org>
parent 54052c36

kernel/sched/hmp.c

+5 −1
Original line number Diff line number Diff line
@@ -1814,6 +1814,7 @@ static void group_load_in_freq_domain(struct cpumask *cpus, 
	}

}



static inline u64 freq_policy_load(struct rq *rq, u64 load);

/*

 * Should scheduler alert governor for changing frequency?

 *
@@ -1864,6 +1865,7 @@ static int send_notification(struct rq *rq, int check_pred, int check_groups) 
			_group_load_in_cpu(cpu_of(rq), &group_load, NULL);



		new_load = rq->prev_runnable_sum + group_load;

		new_load = freq_policy_load(rq, new_load);



		raw_spin_unlock_irqrestore(&rq->lock, flags);

		read_unlock(&related_thread_group_lock);
@@ -3338,7 +3340,7 @@ void sched_get_cpus_busy(struct sched_load *busy, 
				 0);



		account_load_subtractions(rq);

		load[i] = rq->old_busy_time = rq->prev_runnable_sum;

		load[i] = rq->prev_runnable_sum;

		nload[i] = rq->nt_prev_runnable_sum;

		pload[i] = rq->hmp_stats.pred_demands_sum;

		rq->old_estimated_time = pload[i];
@@ -3401,6 +3403,8 @@ void sched_get_cpus_busy(struct sched_load *busy, 
		nload[i] += ngload[i];



		load[i] = freq_policy_load(rq, load[i]);

		rq->old_busy_time = load[i];



		/*

		 * Scale load in reference to cluster max_possible_freq.

		 *