diff options
Diffstat (limited to 'include/linux/cpuidle.h')
| -rw-r--r-- | include/linux/cpuidle.h | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index dcf77fa826b5..36ca9721a0c2 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -52,6 +52,7 @@ struct cpuidle_state { #define CPUIDLE_FLAG_SHALLOW (0x20) /* low latency, minimal savings */ #define CPUIDLE_FLAG_BALANCED (0x40) /* medium latency, moderate savings */ #define CPUIDLE_FLAG_DEEP (0x80) /* high latency, large savings */ +#define CPUIDLE_FLAG_IGNORE (0x100) /* ignore during this idle period */ #define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000) @@ -84,6 +85,7 @@ struct cpuidle_state_kobj { struct cpuidle_device { unsigned int registered:1; unsigned int enabled:1; + unsigned int power_specified:1; unsigned int cpu; int last_residency; @@ -97,6 +99,8 @@ struct cpuidle_device { struct completion kobj_unregister; void *governor_data; struct cpuidle_state *safe_state; + + int (*prepare) (struct cpuidle_device *dev); }; DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices); @@ -125,6 +129,7 @@ struct cpuidle_driver { #ifdef CONFIG_CPU_IDLE extern int cpuidle_register_driver(struct cpuidle_driver *drv); +struct cpuidle_driver *cpuidle_get_driver(void); extern void cpuidle_unregister_driver(struct cpuidle_driver *drv); extern int cpuidle_register_device(struct cpuidle_device *dev); extern void cpuidle_unregister_device(struct cpuidle_device *dev); @@ -137,16 +142,17 @@ extern void cpuidle_disable_device(struct cpuidle_device *dev); #else static inline int cpuidle_register_driver(struct cpuidle_driver *drv) -{return 0;} +{return -ENODEV; } +static inline struct cpuidle_driver *cpuidle_get_driver(void) {return NULL; } static inline void cpuidle_unregister_driver(struct cpuidle_driver *drv) { } static inline int cpuidle_register_device(struct cpuidle_device *dev) -{return 0;} +{return -ENODEV; } static inline void cpuidle_unregister_device(struct cpuidle_device *dev) { } static inline void cpuidle_pause_and_lock(void) { } static inline void cpuidle_resume_and_unlock(void) { } static inline int cpuidle_enable_device(struct cpuidle_device *dev) -{return 0;} +{return -ENODEV; } static inline void cpuidle_disable_device(struct cpuidle_device *dev) { } #endif |