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    SubjectRe: [PATCH v2 2/4] cpufreq: Introduce CPUFREQ_GOV_FLAG_STRICT_TARGET
    On 09-11-20, 17:52, Rafael J. Wysocki wrote:
    > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    >
    > Introduce a new governor flag, CPUFREQ_GOV_FLAG_STRICT_TARGET, for
    > the govenors 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>
    > ---
    > drivers/cpufreq/cpufreq_performance.c | 1 +
    > drivers/cpufreq/cpufreq_powersave.c | 1 +
    > include/linux/cpufreq.h | 3 +++
    > 3 files changed, 5 insertions(+)
    >
    > Index: linux-pm/drivers/cpufreq/cpufreq_performance.c
    > ===================================================================
    > --- linux-pm.orig/drivers/cpufreq/cpufreq_performance.c
    > +++ linux-pm/drivers/cpufreq/cpufreq_performance.c
    > @@ -20,6 +20,7 @@ static void cpufreq_gov_performance_limi
    > static struct cpufreq_governor cpufreq_gov_performance = {
    > .name = "performance",
    > .owner = THIS_MODULE,
    > + .flags = CPUFREQ_GOV_FLAG_STRICT_TARGET,
    > .limits = cpufreq_gov_performance_limits,
    > };
    >
    > Index: linux-pm/drivers/cpufreq/cpufreq_powersave.c
    > ===================================================================
    > --- linux-pm.orig/drivers/cpufreq/cpufreq_powersave.c
    > +++ linux-pm/drivers/cpufreq/cpufreq_powersave.c
    > @@ -21,6 +21,7 @@ static struct cpufreq_governor cpufreq_g
    > .name = "powersave",
    > .limits = cpufreq_gov_powersave_limits,
    > .owner = THIS_MODULE,
    > + .flags = CPUFREQ_GOV_FLAG_STRICT_TARGET,
    > };
    >
    > MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
    > Index: linux-pm/include/linux/cpufreq.h
    > ===================================================================
    > --- linux-pm.orig/include/linux/cpufreq.h
    > +++ linux-pm/include/linux/cpufreq.h
    > @@ -575,6 +575,9 @@ struct cpufreq_governor {
    > /* For governors which change frequency dynamically by themselves */
    > #define CPUFREQ_GOV_FLAG_DYN_SWITCH BIT(0)
    >
    > +/* For governors wanting the target frequency to be set exactly */
    > +#define CPUFREQ_GOV_FLAG_STRICT_TARGET BIT(1)
    > +
    >
    > /* Pass a target to the cpufreq driver */
    > unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,

    Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

    --
    viresh

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