diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2025-01-23 11:04:25 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2025-02-07 09:45:14 +0530 |
| commit | 1f7d1bab50e6ae517f8b6699e56d709d61ae13e5 (patch) | |
| tree | edac5554ba21c94cb7e59cf0e2dfa0d6aefc31dc | |
| parent | 9a23eb8b2b5d8c5f1129c5a523a786ddd53cd7c9 (diff) | |
cpufreq: Introduce policy->boost_supported flag
It is possible to have a scenario where not all cpufreq policies support
boost frequencies. And letting sysfs (or other parts of the kernel)
enable boost feature for that policy isn't correct.
Add a new flag, boost_supported, which will be set to true by the
cpufreq core only if the freq table contains valid boost frequencies.
Some cpufreq drivers though don't have boost frequencies in the
freq-table, they can set this flag from their ->init() callbacks.
Once all the drivers are updated to set the flag correctly, we can check
it before enabling boost feature for a policy.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
| -rw-r--r-- | drivers/cpufreq/freq_table.c | 4 | ||||
| -rw-r--r-- | include/linux/cpufreq.h | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c index 16e56f2fcee4..185070052b41 100644 --- a/drivers/cpufreq/freq_table.c +++ b/drivers/cpufreq/freq_table.c @@ -359,6 +359,10 @@ int cpufreq_table_validate_and_sort(struct cpufreq_policy *policy) if (ret) return ret; + /* Driver's may have set this field already */ + if (policy_has_boost_freq(policy)) + policy->boost_supported = true; + return set_freq_table_sorted(policy); } diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index c7d1fe5ebf7a..b017af4398b9 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -144,6 +144,9 @@ struct cpufreq_policy { /* Per policy boost enabled flag. */ bool boost_enabled; + /* Per policy boost supported flag. */ + bool boost_supported; + /* Cached frequency lookup from cpufreq_driver_resolve_freq. */ unsigned int cached_target_freq; unsigned int cached_resolved_idx; |