Merge tag 'xtensa-20180225' of git://github.com/jcmvbkbc/linux-xtensa
[cris-mirror.git] / include / linux / sched / nohz.h
blob3d3a97d9399d8925a8ea0cf81b2c43bec6bb25e5
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_SCHED_NOHZ_H
3 #define _LINUX_SCHED_NOHZ_H
5 /*
6 * This is the interface between the scheduler and nohz/dynticks:
7 */
9 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
10 extern void cpu_load_update_nohz_start(void);
11 extern void cpu_load_update_nohz_stop(void);
12 #else
13 static inline void cpu_load_update_nohz_start(void) { }
14 static inline void cpu_load_update_nohz_stop(void) { }
15 #endif
17 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON)
18 extern void nohz_balance_enter_idle(int cpu);
19 extern void set_cpu_sd_state_idle(void);
20 extern int get_nohz_timer_target(void);
21 #else
22 static inline void nohz_balance_enter_idle(int cpu) { }
23 static inline void set_cpu_sd_state_idle(void) { }
24 #endif
26 #ifdef CONFIG_NO_HZ_COMMON
27 void calc_load_nohz_start(void);
28 void calc_load_nohz_stop(void);
29 #else
30 static inline void calc_load_nohz_start(void) { }
31 static inline void calc_load_nohz_stop(void) { }
32 #endif /* CONFIG_NO_HZ_COMMON */
34 #if defined(CONFIG_NO_HZ_COMMON) && defined(CONFIG_SMP)
35 extern void wake_up_nohz_cpu(int cpu);
36 #else
37 static inline void wake_up_nohz_cpu(int cpu) { }
38 #endif
40 #ifdef CONFIG_NO_HZ_FULL
41 extern u64 scheduler_tick_max_deferment(void);
42 #endif
44 #endif /* _LINUX_SCHED_NOHZ_H */