diff options
| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-04-07 23:38:46 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-04-08 22:41:36 +0200 |
| commit | 6c9d9c81924b4b63c7a487e90fddb3b2d0f7d458 (patch) | |
| tree | b21381042f1d974f0f844d1e93b6cb84767e9a3d /include/linux/cpufreq.h | |
| parent | cpufreq: schedutil: New governor based on scheduler utilization data (diff) | |
| download | linux-dev-6c9d9c81924b4b63c7a487e90fddb3b2d0f7d458.tar.xz linux-dev-6c9d9c81924b4b63c7a487e90fddb3b2d0f7d458.zip | |
cpufreq: Call cpufreq_disable_fast_switch() in sugov_exit()
Due to differences in the cpufreq core's handling of runtime CPU
offline and nonboot CPUs disabling during system suspend-to-RAM,
fast frequency switching gets disabled after a suspend-to-RAM and
resume cycle on all of the nonboot CPUs.
To prevent that from happening, move the invocation of
cpufreq_disable_fast_switch() from cpufreq_exit_governor() to
sugov_exit(), as the schedutil governor is the only user of fast
frequency switching today anyway.
That simply prevents cpufreq_disable_fast_switch() from being called
without invoking the ->governor callback for the CPUFREQ_GOV_POLICY_EXIT
event (which happens during system suspend now).
Fixes: b7898fda5bc7 (cpufreq: Support for fast frequency switching)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'include/linux/cpufreq.h')
| -rw-r--r-- | include/linux/cpufreq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 55e69ebb035c..4e81e08db752 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -168,6 +168,7 @@ int cpufreq_update_policy(unsigned int cpu); bool have_governor_per_policy(void); struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy); void cpufreq_enable_fast_switch(struct cpufreq_policy *policy); +void cpufreq_disable_fast_switch(struct cpufreq_policy *policy); #else static inline unsigned int cpufreq_get(unsigned int cpu) { |