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