diff options
| author | Vikram Mulukutla <markivx@codeaurora.org> | 2017-06-06 11:58:27 -0700 |
|---|---|---|
| committer | Georg Veichtlbauer <georg@vware.at> | 2023-07-16 12:47:43 +0200 |
| commit | 6adb092856e806d91f3fc22dff0ef36506dd0bae (patch) | |
| tree | 5f19cc4f680b0c21643621ae80607e66b36479c2 /kernel | |
| parent | 0fa652ee00f5aaf9fdebea0e0f840e59bdb6795b (diff) | |
sched: cpufreq: Limit governor updates to WALT changes alone
It's not necessary to keep reporting load to the governor
if it doesn't change in a window. Limit updates to when
we expect load changes - after window rollover and when
we send updates related to intercluster migrations.
[beykerykt]: Adapt for HMP
Change-Id: I3232d40f3d54b0b81cfafdcdb99b534df79327bf
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/hmp.c | 6 | ||||
| -rw-r--r-- | kernel/sched/sched.h | 4 |
2 files changed, 7 insertions, 3 deletions
diff --git a/kernel/sched/hmp.c b/kernel/sched/hmp.c index 1755e919f8f4..6a403be2ae7c 100644 --- a/kernel/sched/hmp.c +++ b/kernel/sched/hmp.c @@ -3663,8 +3663,10 @@ void fixup_busy_time(struct task_struct *p, int new_cpu) migrate_top_tasks(p, src_rq, dest_rq); if (!same_freq_domain(new_cpu, task_cpu(p))) { - cpufreq_update_util(dest_rq, SCHED_CPUFREQ_INTERCLUSTER_MIG); - cpufreq_update_util(src_rq, SCHED_CPUFREQ_INTERCLUSTER_MIG); + cpufreq_update_util(dest_rq, SCHED_CPUFREQ_INTERCLUSTER_MIG | + SCHED_CPUFREQ_WALT); + cpufreq_update_util(src_rq, SCHED_CPUFREQ_INTERCLUSTER_MIG | + SCHED_CPUFREQ_WALT); } if (p == src_rq->ed_task) { diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 90cc450dff7e..40da1a509ded 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -2856,8 +2856,10 @@ static inline void cpufreq_update_util(struct rq *rq, unsigned int flags) #ifdef CONFIG_SCHED_HMP /* * Skip if we've already reported, but not if this is an inter-cluster - * migration + * migration. Also only allow WALT update sites. */ + if (!(flags & SCHED_CPUFREQ_WALT)) + return; if (!sched_disable_window_stats && (rq->load_reported_window == rq->window_start) && !(flags & SCHED_CPUFREQ_INTERCLUSTER_MIG)) |