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Power management fixes for 5.10-rc4.

Browse source 
Make the intel_pstate driver behave as expected when it operates in
 the passive mode with HWP enabled and the "powersave" governor on
 top of it.
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Merge tag 'pm-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "Make the intel_pstate driver behave as expected when it operates in
  the passive mode with HWP enabled and the 'powersave' governor on top
  of it"

* tag 'pm-5.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: intel_pstate: Take CPUFREQ_GOV_STRICT_TARGET into account
  cpufreq: Add strict_target to struct cpufreq_policy
  cpufreq: Introduce CPUFREQ_GOV_STRICT_TARGET
  cpufreq: Introduce governor flags
This commit is contained in:
Linus Torvalds 2020-11-12 11:03:38 -08:00
commit fcfb67918c
7 changed files with 32 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

18
include/linux/cpufreq.h
View file

@ -109,6 +109,12 @@ struct cpufreq_policy {
bool fast_switch_possible;
bool fast_switch_enabled;
/*
* Set if the CPUFREQ_GOV_STRICT_TARGET flag is set for the current
* governor.
*/
bool strict_target;
/*
* Preferred average time interval between consecutive invocations of
* the driver to set the frequency for this policy. To be set by the
@ -570,12 +576,20 @@ struct cpufreq_governor {
char *buf);
int (*store_setspeed) (struct cpufreq_policy *policy,
unsigned int freq);
/* For governors which change frequency dynamically by themselves */
bool dynamic_switching;
struct list_head governor_list;
struct module *owner;
u8 flags;
};
/* Governor flags */
/* 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,
unsigned int target_freq);