2  * cpuidle.h - a generic framework for CPU idle power management
41 	unsigned long long	rejected; /* Number of times idle entry was rejected */
49 	char		name[CPUIDLE_NAME_LEN];  member
66 	 * CPUs execute ->enter_s2idle with the local tick or entire timekeeping
67 	 * suspended, so it must not re-enable interrupts at any point (even
70 	 * This callback may point to the same function as ->enter if all of
78 /* Idle State Flags */
80 #define CPUIDLE_FLAG_POLLING		BIT(0) /* polling state */
81 #define CPUIDLE_FLAG_COUPLED		BIT(1) /* state applies to multiple cpus */
82 #define CPUIDLE_FLAG_TIMER_STOP 	BIT(2) /* timer is stopped on this state */
83 #define CPUIDLE_FLAG_UNUSABLE		BIT(3) /* avoid using this state */
84 #define CPUIDLE_FLAG_OFF		BIT(4) /* disable this state by default */
85 #define CPUIDLE_FLAG_TLB_FLUSHED	BIT(5) /* idle-state flushes TLBs */
86 #define CPUIDLE_FLAG_RCU_IDLE		BIT(6) /* idle-state takes care of RCU */
123 	const char		*name;  member
182 {return -ENODEV; }  in cpuidle_select()
185 {return -ENODEV; }  in cpuidle_enter()
191 {return -ENODEV; }  in cpuidle_register_driver()
197 {return -ENODEV; }  in cpuidle_register_device()
201 {return -ENODEV; }  in cpuidle_register()
208 {return -ENODEV; }  in cpuidle_enable_device()
210 static inline int cpuidle_play_dead(void) {return -ENODEV; }  in cpuidle_play_dead()
227 {return -ENODEV; }  in cpuidle_find_deepest_state()
230 {return -ENODEV; }  in cpuidle_enter_s2idle()
236 /* kernel/sched/idle.c */
259 	char			name[CPUIDLE_NAME_LEN];  member
279 				state,					\  argument
292 		__ret = low_level_idle_enter(state);			\
297 	__ret ? -1 : idx;						\
306 #define CPU_PM_CPU_IDLE_ENTER_PARAM(low_level_idle_enter, idx, state)	\  argument
307 	__CPU_PM_CPU_IDLE_ENTER(low_level_idle_enter, idx, state, 0)
309 #define CPU_PM_CPU_IDLE_ENTER_RETENTION_PARAM(low_level_idle_enter, idx, state)	\  argument
310 	__CPU_PM_CPU_IDLE_ENTER(low_level_idle_enter, idx, state, 1)