| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Ingo Molnar | 370c913 | 2017-02-08 18:51:35 +0100 | [diff] [blame] | 2 | #ifndef _LINUX_SCHED_NOHZ_H |
| 3 | #define _LINUX_SCHED_NOHZ_H |
| 4 | |
| Ingo Molnar | 752b3ca | 2017-02-03 11:12:59 +0100 | [diff] [blame] | 5 | /* |
| Ingo Molnar | 86d35af | 2017-07-05 10:14:38 +0200 | [diff] [blame] | 6 | * This is the interface between the scheduler and nohz/dynticks: |
| Ingo Molnar | 752b3ca | 2017-02-03 11:12:59 +0100 | [diff] [blame] | 7 | */ |
| 8 | |
| 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 |
| 16 | |
| 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 |
| 25 | |
| 26 | #ifdef CONFIG_NO_HZ_COMMON |
| Frederic Weisbecker | 3c85d6d | 2017-06-19 04:12:00 +0200 | [diff] [blame] | 27 | void calc_load_nohz_start(void); |
| 28 | void calc_load_nohz_stop(void); |
| Ingo Molnar | 752b3ca | 2017-02-03 11:12:59 +0100 | [diff] [blame] | 29 | #else |
| Frederic Weisbecker | 3c85d6d | 2017-06-19 04:12:00 +0200 | [diff] [blame] | 30 | static inline void calc_load_nohz_start(void) { } |
| 31 | static inline void calc_load_nohz_stop(void) { } |
| Ingo Molnar | 752b3ca | 2017-02-03 11:12:59 +0100 | [diff] [blame] | 32 | #endif /* CONFIG_NO_HZ_COMMON */ |
| 33 | |
| 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 |
| 39 | |
| 40 | #ifdef CONFIG_NO_HZ_FULL |
| 41 | extern u64 scheduler_tick_max_deferment(void); |
| 42 | #endif |
| 43 | |
| Ingo Molnar | 370c913 | 2017-02-08 18:51:35 +0100 | [diff] [blame] | 44 | #endif /* _LINUX_SCHED_NOHZ_H */ |