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| author | Qais Yousef <qyousef@google.com> | 2023-07-25 16:38:34 +0000 |
|---|---|---|
| committer | Qais Yousef <qyousef@google.com> | 2023-09-11 17:02:42 +0000 |
| commit | 0fed377fceb66d9c3ce668e3771260bd66705b9e (patch) | |
| tree | 7617b2fae5a5667c3ffc8d0548b3299b1de857a3 | |
| parent | acbc9bacfebca3bdc11d2ef89738be0d6e4eb232 (diff) | |
| download | common-0fed377fceb66d9c3ce668e3771260bd66705b9e.tar.gz | |
ANDROID: cpuidle: teo: Export a function that allows modifying util_threshold
There are some corner cases where we do worse in power because the
threshold is too low. Until these cases are better understood and
addressed upstream, provide a function for vendors to override this
value with something more suitable in their modules.
Bug: 299931876
Bug: 297496375
Bug: 289293494
Signed-off-by: Qais Yousef <qyousef@google.com>
Change-Id: I95dd36718a317f3fcb2a9f4bc87dd3390a4f7d7d
(cherry picked from commit 619a5f635c8fe7639e5c0c33d1e70d752c71cd71)
Signed-off-by: Qais Yousef <qyousef@google.com>
(cherry picked from commit d2429181c3a761c6025c2d875854e0f44ab82cfa)
Signed-off-by: Qais Yousef <qyousef@google.com>
| -rw-r--r-- | drivers/cpuidle/governors/teo.c | 13 | ||||
| -rw-r--r-- | include/linux/cpuidle.h | 8 |
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c index e3fb01cb6564..9cc3081c545d 100644 --- a/drivers/cpuidle/governors/teo.c +++ b/drivers/cpuidle/governors/teo.c @@ -202,6 +202,19 @@ struct teo_cpu { static DEFINE_PER_CPU(struct teo_cpu, teo_cpus); +unsigned long teo_cpu_get_util_threshold(int cpu) +{ + struct teo_cpu *cpu_data = per_cpu_ptr(&teo_cpus, cpu); + return cpu_data->util_threshold; +} +EXPORT_SYMBOL_GPL(teo_cpu_get_util_threshold); +void teo_cpu_set_util_threshold(int cpu, unsigned long util) +{ + struct teo_cpu *cpu_data = per_cpu_ptr(&teo_cpus, cpu); + cpu_data->util_threshold = util; +} +EXPORT_SYMBOL_GPL(teo_cpu_set_util_threshold); + /** * teo_cpu_is_utilized - Check if the CPU's util is above the threshold * @cpu: Target CPU diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 4b51019dd2b8..ac853b9372a2 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -314,4 +314,12 @@ extern s64 cpuidle_governor_latency_req(unsigned int cpu); #define CPU_PM_CPU_IDLE_ENTER_RETENTION_PARAM(low_level_idle_enter, idx, state) \ __CPU_PM_CPU_IDLE_ENTER(low_level_idle_enter, idx, state, 1) +#ifdef CONFIG_CPU_IDLE_GOV_TEO +unsigned long teo_cpu_get_util_threshold(int cpu); +void teo_cpu_set_util_threshold(int cpu, unsigned long util); +#else +static inline unsigned long teo_cpu_get_util_threshold(int cpu) {return -1;} +static inline void teo_cpu_set_util_threshold(int cpu, unsigned long util) {} +#endif + #endif /* _LINUX_CPUIDLE_H */ |