AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET

Browse Source 
Introduce a new governor flag, CPUFREQ_GOV_STRICT_TARGET, for the
governors that want the target frequency to be set exactly to the
given value without leaving any room for adjustments on the hardware
side and set this flag for the powersave and performance governors.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Rafael J. Wysocki 2020-11-10 18:26:10 +01:00
parent 9a2a9ebc0a
commit 218f668701
3 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/cpufreq/cpufreq_performance.c
View File

@ -20,6 +20,7 @@ static void cpufreq_gov_performance_limits(struct cpufreq_policy *policy)
static struct cpufreq_governor cpufreq_gov_performance = {
.name = "performance",
.owner = THIS_MODULE,
.flags = CPUFREQ_GOV_STRICT_TARGET,
.limits = cpufreq_gov_performance_limits,
};

1
drivers/cpufreq/cpufreq_powersave.c
View File

@ -21,6 +21,7 @@ static struct cpufreq_governor cpufreq_gov_powersave = {
.name = "powersave",
.limits = cpufreq_gov_powersave_limits,
.owner = THIS_MODULE,
.flags = CPUFREQ_GOV_STRICT_TARGET,
};
MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");

3
include/linux/cpufreq.h
View File

@ -580,6 +580,9 @@ struct cpufreq_governor {
/* For governors which change frequency dynamically by themselves */
#define CPUFREQ_GOV_DYNAMIC_SWITCHING BIT(0)
/* For governors wanting the target frequency to be set exactly */
#define CPUFREQ_GOV_STRICT_TARGET BIT(1)
/* Pass a target to the cpufreq driver */
unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,