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| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-05-06 22:37:15 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-05-07 21:17:56 +0200 |
| commit | 4854649b1fb43968615e0374d9d59580093ac67f (patch) | |
| tree | 3d27c721054bd87c9814be807b94d3dbe27fac6b /include/linux/cpufreq.h | |
| parent | cpufreq/sched: schedutil: Add helper for governor checks (diff) | |
| download | wireguard-linux-4854649b1fb43968615e0374d9d59580093ac67f.tar.xz wireguard-linux-4854649b1fb43968615e0374d9d59580093ac67f.zip | |
cpufreq/sched: Move cpufreq-specific EAS checks to cpufreq
Doing cpufreq-specific EAS checks that require accessing policy
internals directly from sched_is_eas_possible() is a bit unfortunate,
so introduce cpufreq_ready_for_eas() in cpufreq, move those checks
into that new function and make sched_is_eas_possible() call it.
While at it, address a possible race between the EAS governor check
and governor change by doing the former under the policy rwsem.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Tested-by: Christian Loehle <christian.loehle@arm.com>
Reviewed-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://patch.msgid.link/2317800.iZASKD2KPV@rjwysocki.net
Diffstat (limited to 'include/linux/cpufreq.h')
| -rw-r--r-- | include/linux/cpufreq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 1d2c6c6d8952..95f3807c8c55 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -1237,6 +1237,8 @@ void cpufreq_generic_init(struct cpufreq_policy *policy, struct cpufreq_frequency_table *table, unsigned int transition_latency); +bool cpufreq_ready_for_eas(const struct cpumask *cpu_mask); + static inline void cpufreq_register_em_with_opp(struct cpufreq_policy *policy) { dev_pm_opp_of_register_em(get_cpu_device(policy->cpu), |