[PATCH v4 2/5] thermal: cpufreq_cooling: Use new thermal pressure update function

Lukasz Luba lukasz.luba at arm.com
Tue Nov 9 11:57:11 PST 2021


Thermal pressure provides a new API, which allows to use CPU frequency
as an argument. That removes the need of local conversion to capacity.
Use this new function and remove old conversion code.

Signed-off-by: Lukasz Luba <lukasz.luba at arm.com>
---
 drivers/thermal/cpufreq_cooling.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/thermal/cpufreq_cooling.c b/drivers/thermal/cpufreq_cooling.c
index 43b1ae8a7789..0bfb8eebd126 100644
--- a/drivers/thermal/cpufreq_cooling.c
+++ b/drivers/thermal/cpufreq_cooling.c
@@ -462,7 +462,6 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 	struct cpufreq_cooling_device *cpufreq_cdev = cdev->devdata;
 	struct cpumask *cpus;
 	unsigned int frequency;
-	unsigned long max_capacity, capacity;
 	int ret;
 
 	/* Request state should be less than max_level */
@@ -479,10 +478,7 @@ static int cpufreq_set_cur_state(struct thermal_cooling_device *cdev,
 	if (ret >= 0) {
 		cpufreq_cdev->cpufreq_state = state;
 		cpus = cpufreq_cdev->policy->related_cpus;
-		max_capacity = arch_scale_cpu_capacity(cpumask_first(cpus));
-		capacity = frequency * max_capacity;
-		capacity /= cpufreq_cdev->policy->cpuinfo.max_freq;
-		arch_set_thermal_pressure(cpus, max_capacity - capacity);
+		arch_update_thermal_pressure(cpus, frequency);
 		ret = 0;
 	}
 
-- 
2.17.1




More information about the linux-arm-kernel mailing list