diff options
Diffstat (limited to 'ANDROID_3.4.5/include/linux/cpuidle.h')
| -rw-r--r-- | ANDROID_3.4.5/include/linux/cpuidle.h | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/ANDROID_3.4.5/include/linux/cpuidle.h b/ANDROID_3.4.5/include/linux/cpuidle.h deleted file mode 100644 index 5ab71833..00000000 --- a/ANDROID_3.4.5/include/linux/cpuidle.h +++ /dev/null @@ -1,237 +0,0 @@ -/* - * cpuidle.h - a generic framework for CPU idle power management - * - * (C) 2007 Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> - * Shaohua Li <shaohua.li@intel.com> - * Adam Belay <abelay@novell.com> - * - * This code is licenced under the GPL. - */ - -#ifndef _LINUX_CPUIDLE_H -#define _LINUX_CPUIDLE_H - -#include <linux/percpu.h> -#include <linux/list.h> -#include <linux/kobject.h> -#include <linux/completion.h> -#include <linux/hrtimer.h> - -#define CPUIDLE_STATE_MAX 8 -#define CPUIDLE_NAME_LEN 16 -#define CPUIDLE_DESC_LEN 32 - -struct module; - -struct cpuidle_device; -struct cpuidle_driver; - - -/**************************** - * CPUIDLE DEVICE INTERFACE * - ****************************/ - -struct cpuidle_state_usage { - void *driver_data; - - unsigned long long usage; - unsigned long long time; /* in US */ -}; - -struct cpuidle_state { - char name[CPUIDLE_NAME_LEN]; - char desc[CPUIDLE_DESC_LEN]; - - unsigned int flags; - unsigned int exit_latency; /* in US */ - int power_usage; /* in mW */ - unsigned int target_residency; /* in US */ - unsigned int disable; - - int (*enter) (struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index); - - int (*enter_dead) (struct cpuidle_device *dev, int index); -}; - -/* Idle State Flags */ -#define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */ -#define CPUIDLE_FLAG_COUPLED (0x02) /* state applies to multiple cpus */ - -#define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000) - -/** - * cpuidle_get_statedata - retrieves private driver state data - * @st_usage: the state usage statistics - */ -static inline void *cpuidle_get_statedata(struct cpuidle_state_usage *st_usage) -{ - return st_usage->driver_data; -} - -/** - * cpuidle_set_statedata - stores private driver state data - * @st_usage: the state usage statistics - * @data: the private data - */ -static inline void -cpuidle_set_statedata(struct cpuidle_state_usage *st_usage, void *data) -{ - st_usage->driver_data = data; -} - -struct cpuidle_state_kobj { - struct cpuidle_state *state; - struct cpuidle_state_usage *state_usage; - struct completion kobj_unregister; - struct kobject kobj; -}; - -struct cpuidle_device { - unsigned int registered:1; - unsigned int enabled:1; - unsigned int cpu; - - int last_residency; - int state_count; - struct cpuidle_state_usage states_usage[CPUIDLE_STATE_MAX]; - struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX]; - - struct list_head device_list; - struct kobject kobj; - struct completion kobj_unregister; - -#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED - int safe_state_index; - cpumask_t coupled_cpus; - struct cpuidle_coupled *coupled; -#endif -}; - -DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices); - -/** - * cpuidle_get_last_residency - retrieves the last state's residency time - * @dev: the target CPU - * - * NOTE: this value is invalid if CPUIDLE_FLAG_TIME_VALID isn't set - */ -static inline int cpuidle_get_last_residency(struct cpuidle_device *dev) -{ - return dev->last_residency; -} - - -/**************************** - * CPUIDLE DRIVER INTERFACE * - ****************************/ - -struct cpuidle_driver { - const char *name; - struct module *owner; - - unsigned int power_specified:1; - /* set to 1 to use the core cpuidle time keeping (for all states). */ - unsigned int en_core_tk_irqen:1; - struct cpuidle_state states[CPUIDLE_STATE_MAX]; - int state_count; - int safe_state_index; -}; - -#ifdef CONFIG_CPU_IDLE -extern void disable_cpuidle(void); -extern int cpuidle_idle_call(void); -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); - -extern void cpuidle_pause_and_lock(void); -extern void cpuidle_resume_and_unlock(void); -extern int cpuidle_enable_device(struct cpuidle_device *dev); -extern void cpuidle_disable_device(struct cpuidle_device *dev); -extern int cpuidle_wrap_enter(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index, - int (*enter)(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index)); -extern int cpuidle_play_dead(void); - -#else -static inline void disable_cpuidle(void) { } -static inline int cpuidle_idle_call(void) { return -ENODEV; } -static inline int cpuidle_register_driver(struct cpuidle_driver *drv) -{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 -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 -ENODEV; } -static inline void cpuidle_disable_device(struct cpuidle_device *dev) { } -static inline int cpuidle_wrap_enter(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index, - int (*enter)(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int index)) -{ return -ENODEV; } -static inline int cpuidle_play_dead(void) {return -ENODEV; } - -#endif - -#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED -void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a); -#endif - -/****************************** - * CPUIDLE GOVERNOR INTERFACE * - ******************************/ - -struct cpuidle_governor { - char name[CPUIDLE_NAME_LEN]; - struct list_head governor_list; - unsigned int rating; - - int (*enable) (struct cpuidle_driver *drv, - struct cpuidle_device *dev); - void (*disable) (struct cpuidle_driver *drv, - struct cpuidle_device *dev); - - int (*select) (struct cpuidle_driver *drv, - struct cpuidle_device *dev); - void (*reflect) (struct cpuidle_device *dev, int index); - - struct module *owner; -}; - -#ifdef CONFIG_CPU_IDLE - -extern int cpuidle_register_governor(struct cpuidle_governor *gov); -extern void cpuidle_unregister_governor(struct cpuidle_governor *gov); - -#ifdef CONFIG_INTEL_IDLE -extern int intel_idle_cpu_init(int cpu); -#else -static inline int intel_idle_cpu_init(int cpu) { return -1; } -#endif - -#else -static inline int intel_idle_cpu_init(int cpu) { return -1; } - -static inline int cpuidle_register_governor(struct cpuidle_governor *gov) -{return 0;} -static inline void cpuidle_unregister_governor(struct cpuidle_governor *gov) { } - -#endif - -#ifdef CONFIG_ARCH_HAS_CPU_RELAX -#define CPUIDLE_DRIVER_STATE_START 1 -#else -#define CPUIDLE_DRIVER_STATE_START 0 -#endif - -#endif /* _LINUX_CPUIDLE_H */ |