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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2019-07-03 20:51:26 -0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2019-07-30 17:27:37 +0200 |
| commit | 259231a045616c4101d023a8f4dcc8379af265a6 (patch) | |
| tree | 633877050928b1b22ee77920d79b5bc548f29471 /include/linux/cpuidle.h | |
| parent | fa86ee90eb1111267de67cb4272b5ce711f18cbb (diff) | |
| download | lwn-259231a045616c4101d023a8f4dcc8379af265a6.tar.gz lwn-259231a045616c4101d023a8f4dcc8379af265a6.zip | |
cpuidle: add poll_limit_ns to cpuidle_device structure
Add a poll_limit_ns variable to cpuidle_device structure.
Calculate and configure it in the new cpuidle_poll_time
function, in case its zero.
Individual governors are allowed to override this value.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/cpuidle.h')
| -rw-r--r-- | include/linux/cpuidle.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index bb9a0db89f1a..b484dd69ec21 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -86,6 +86,7 @@ struct cpuidle_device { ktime_t next_hrtimer; int last_residency; + u64 poll_limit_ns; struct cpuidle_state_usage states_usage[CPUIDLE_STATE_MAX]; struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX]; struct cpuidle_driver_kobj *kobj_driver; @@ -132,6 +133,8 @@ extern int cpuidle_select(struct cpuidle_driver *drv, extern int cpuidle_enter(struct cpuidle_driver *drv, struct cpuidle_device *dev, int index); extern void cpuidle_reflect(struct cpuidle_device *dev, int index); +extern u64 cpuidle_poll_time(struct cpuidle_driver *drv, + struct cpuidle_device *dev); extern int cpuidle_register_driver(struct cpuidle_driver *drv); extern struct cpuidle_driver *cpuidle_get_driver(void); @@ -166,6 +169,9 @@ static inline int cpuidle_enter(struct cpuidle_driver *drv, struct cpuidle_device *dev, int index) {return -ENODEV; } static inline void cpuidle_reflect(struct cpuidle_device *dev, int index) { } +extern u64 cpuidle_poll_time(struct cpuidle_driver *drv, + struct cpuidle_device *dev) +{return 0; } static inline int cpuidle_register_driver(struct cpuidle_driver *drv) {return -ENODEV; } static inline struct cpuidle_driver *cpuidle_get_driver(void) {return NULL; } |