linux-kernel - [tip: sched/core] thermal/cpufreq: Remove arch_update_thermal

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Date: Wed, 24 Apr 2024 10:22:15 -0000
From: "tip-bot2 for Vincent Guittot" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Vincent Guittot <vincent.guittot@...aro.org>,
 Ingo Molnar <mingo@...nel.org>, Lukasz Luba <lukasz.luba@....com>,
 Dhruva Gole <d-gole@...com>, Viresh Kumar <viresh.kumar@...aro.org>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject:
 [tip: sched/core] thermal/cpufreq: Remove arch_update_thermal_pressure()

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     c281afe24fc51691e65f59ea66eefa14cbdfa0e7
Gitweb:        https://git.kernel.org/tip/c281afe24fc51691e65f59ea66eefa14cbdfa0e7
Author:        Vincent Guittot <vincent.guittot@...aro.org>
AuthorDate:    Tue, 26 Mar 2024 10:16:14 +01:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Wed, 24 Apr 2024 12:08:00 +02:00

thermal/cpufreq: Remove arch_update_thermal_pressure()

arch_update_thermal_pressure() aims to update fast changing signal which
should be averaged using PELT filtering before being provided to the
scheduler which can't make smart use of fast changing signal.
cpufreq now provides the maximum freq_qos pressure on the capacity to the
scheduler, which includes cpufreq cooling device. Remove the call to
arch_update_thermal_pressure() in cpufreq cooling device as this is
handled by cpufreq_get_pressure().

Signed-off-by: Vincent Guittot <vincent.guittot@...aro.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Tested-by: Lukasz Luba <lukasz.luba@....com>
Reviewed-by: Lukasz Luba <lukasz.luba@....com>
Reviewed-by: Dhruva Gole <d-gole@...com>
Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
Link: https://lore.kernel.org/r/20240326091616.3696851-4-vincent.guittot@linaro.org
---
 drivers/thermal/cpufreq_cooling.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index 9d1b145..280071b 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -477,7 +477,6 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 				 unsigned long state)
 {
 	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
-	struct cpumask *cpus;
 	unsigned int frequency;
 	int ret;
 
@@ -494,8 +493,6 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 	ret = freq_qos_update_request(&cpufreq_cdev->qos_req, frequency);
 	if (ret >= 0) {
 		cpufreq_cdev->cpufreq_state = state;
-		cpus = cpufreq_cdev->policy->related_cpus;
-		arch_update_thermal_pressure(cpus, frequency);
 		ret = 0;
 	}