linux-kernel - [PATCH V3 3/3] thermal/cpu-cooling: Update thermal pressure in case of a maximum frequency capping

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Date:   Tue, 16 Apr 2019 15:38:41 -0400
From:   Thara Gopinath <thara.gopinath@...aro.org>
To:     mingo@...hat.com, peterz@...radead.org, rui.zhang@...el.com
Cc:     linux-kernel@...r.kernel.org, amit.kachhap@...il.com,
        viresh.kumar@...aro.org, javi.merino@...nel.org,
        edubezval@...il.com, daniel.lezcano@...aro.org,
        vincent.guittot@...aro.org, nicolas.dechesne@...aro.org,
        bjorn.andersson@...aro.org, dietmar.eggemann@....com
Subject: [PATCH V3 3/3] thermal/cpu-cooling: Update thermal pressure in case of a maximum frequency capping

Enable cpufreq cooling device to update the thermal pressure in
event of a capped maximum frequency or removal of capped maximum
frequency.

Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
---
 drivers/thermal/cpu_cooling.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index 6fff161..d5cc3c3 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -31,6 +31,7 @@
 #include <linux/slab.h>
 #include <linux/cpu.h>
 #include <linux/cpu_cooling.h>
+#include <linux/sched/thermal.h>
 
 #include <trace/events/thermal.h>
 
@@ -177,6 +178,9 @@ static int cpufreq_thermal_notifier(struct notifier_block *nb,
 
 		if (policy->max > clipped_freq)
 			cpufreq_verify_within_limits(policy, 0, clipped_freq);
+
+		sched_update_thermal_pressure(policy->cpus,
+				policy->max, policy->cpuinfo.max_freq);
 		break;
 	}
 	mutex_unlock(&cooling_list_lock);
-- 
2.1.4