1 /* SPDX-License-Identifier: GPL-2.0 */ << 2 #ifndef _LINUX_SCHED_NOHZ_H 1 #ifndef _LINUX_SCHED_NOHZ_H 3 #define _LINUX_SCHED_NOHZ_H 2 #define _LINUX_SCHED_NOHZ_H 4 3 5 /* 4 /* 6 * This is the interface between the scheduler !! 5 * This is the interface between the scheduler and nohz/dyntics: 7 */ 6 */ 8 7 9 #if defined(CONFIG_SMP) && defined(CONFIG_NO_H 8 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) >> 9 extern void cpu_load_update_nohz_start(void); >> 10 extern void cpu_load_update_nohz_stop(void); >> 11 #else >> 12 static inline void cpu_load_update_nohz_start(void) { } >> 13 static inline void cpu_load_update_nohz_stop(void) { } >> 14 #endif >> 15 >> 16 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) 10 extern void nohz_balance_enter_idle(int cpu); 17 extern void nohz_balance_enter_idle(int cpu); >> 18 extern void set_cpu_sd_state_idle(void); 11 extern int get_nohz_timer_target(void); 19 extern int get_nohz_timer_target(void); 12 #else 20 #else 13 static inline void nohz_balance_enter_idle(int 21 static inline void nohz_balance_enter_idle(int cpu) { } >> 22 static inline void set_cpu_sd_state_idle(void) { } 14 #endif 23 #endif 15 24 16 #ifdef CONFIG_NO_HZ_COMMON 25 #ifdef CONFIG_NO_HZ_COMMON 17 void calc_load_nohz_start(void); !! 26 void calc_load_enter_idle(void); 18 void calc_load_nohz_remote(struct rq *rq); !! 27 void calc_load_exit_idle(void); 19 void calc_load_nohz_stop(void); << 20 #else 28 #else 21 static inline void calc_load_nohz_start(void) !! 29 static inline void calc_load_enter_idle(void) { } 22 static inline void calc_load_nohz_remote(struc !! 30 static inline void calc_load_exit_idle(void) { } 23 static inline void calc_load_nohz_stop(void) { << 24 #endif /* CONFIG_NO_HZ_COMMON */ 31 #endif /* CONFIG_NO_HZ_COMMON */ 25 32 26 #if defined(CONFIG_NO_HZ_COMMON) && defined(CO 33 #if defined(CONFIG_NO_HZ_COMMON) && defined(CONFIG_SMP) 27 extern void wake_up_nohz_cpu(int cpu); 34 extern void wake_up_nohz_cpu(int cpu); 28 #else 35 #else 29 static inline void wake_up_nohz_cpu(int cpu) { 36 static inline void wake_up_nohz_cpu(int cpu) { } >> 37 #endif >> 38 >> 39 #ifdef CONFIG_NO_HZ_FULL >> 40 extern u64 scheduler_tick_max_deferment(void); 30 #endif 41 #endif 31 42 32 #endif /* _LINUX_SCHED_NOHZ_H */ 43 #endif /* _LINUX_SCHED_NOHZ_H */ 33 44
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