1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_SCHED_NOHZ_H 2 #ifndef _LINUX_SCHED_NOHZ_H
3 #define _LINUX_SCHED_NOHZ_H 3 #define _LINUX_SCHED_NOHZ_H
4 4
5 /* 5 /*
6 * This is the interface between the scheduler 6 * This is the interface between the scheduler and nohz/dynticks:
7 */ 7 */
8 8
9 #if defined(CONFIG_SMP) && defined(CONFIG_NO_H 9 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
10 extern void nohz_balance_enter_idle(int cpu); 10 extern void nohz_balance_enter_idle(int cpu);
11 extern int get_nohz_timer_target(void); 11 extern int get_nohz_timer_target(void);
12 #else 12 #else
13 static inline void nohz_balance_enter_idle(int 13 static inline void nohz_balance_enter_idle(int cpu) { }
14 #endif 14 #endif
15 15
16 #ifdef CONFIG_NO_HZ_COMMON 16 #ifdef CONFIG_NO_HZ_COMMON
17 void calc_load_nohz_start(void); 17 void calc_load_nohz_start(void);
18 void calc_load_nohz_remote(struct rq *rq); 18 void calc_load_nohz_remote(struct rq *rq);
19 void calc_load_nohz_stop(void); 19 void calc_load_nohz_stop(void);
20 #else 20 #else
21 static inline void calc_load_nohz_start(void) 21 static inline void calc_load_nohz_start(void) { }
22 static inline void calc_load_nohz_remote(struc 22 static inline void calc_load_nohz_remote(struct rq *rq) { }
23 static inline void calc_load_nohz_stop(void) { 23 static inline void calc_load_nohz_stop(void) { }
24 #endif /* CONFIG_NO_HZ_COMMON */ 24 #endif /* CONFIG_NO_HZ_COMMON */
25 25
26 #if defined(CONFIG_NO_HZ_COMMON) && defined(CO 26 #if defined(CONFIG_NO_HZ_COMMON) && defined(CONFIG_SMP)
27 extern void wake_up_nohz_cpu(int cpu); 27 extern void wake_up_nohz_cpu(int cpu);
28 #else 28 #else
29 static inline void wake_up_nohz_cpu(int cpu) { 29 static inline void wake_up_nohz_cpu(int cpu) { }
30 #endif 30 #endif
31 31
32 #endif /* _LINUX_SCHED_NOHZ_H */ 32 #endif /* _LINUX_SCHED_NOHZ_H */
33 33
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