linux-kernel - [RFC PATCH 5/7] sched/fair: Enable CFS periodic tick to update thermal pressure

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Date:   Tue,  9 Oct 2018 12:25:00 -0400
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     linux-kernel@...r.kernel.org, mingo@...hat.com,
        peterz@...radead.org, rui.zhang@...el.com
Cc:     gregkh@...uxfoundation.org, rafael@...nel.org,
        amit.kachhap@...il.com, viresh.kumar@...aro.org,
        javi.merino@...nel.org, edubezval@...il.com,
        daniel.lezcano@...aro.org, linux-pm@...r.kernel.org,
        quentin.perret@....com, ionela.voinescu@....com,
        vincent.guittot@...aro.org
Subject: [RFC PATCH 5/7] sched/fair: Enable CFS periodic tick to update thermal pressure

Introduce support in CFS periodic tick to trigger the process of
computing average thermal pressure for a cpu.

Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 kernel/sched/fair.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b39fb59..7deb1d0 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -21,6 +21,7 @@
  *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra
  */
 #include "sched.h"
+#include "thermal.h"
 
 #include <trace/events/sched.h>
 
@@ -9557,6 +9558,8 @@ static void task_tick_fair(struct rq *rq, struct task_struct *curr, int queued)
 
 	if (static_branch_unlikely(&sched_numa_balancing))
 		task_tick_numa(rq, curr);
+
+	update_periodic_maxcap(rq);
 }
 
 /*
-- 
2.1.4