| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Ingo Molnar | 55687da | 2017-02-08 18:51:31 +0100 | [diff] [blame] | 2 | #ifndef _LINUX_SCHED_CPUFREQ_H |
| 3 | #define _LINUX_SCHED_CPUFREQ_H |
| 4 | |
| Ingo Molnar | ed53742 | 2017-02-08 18:51:55 +0100 | [diff] [blame] | 5 | #include <linux/types.h> |
| Ingo Molnar | 55687da | 2017-02-08 18:51:31 +0100 | [diff] [blame] | 6 | |
| Ingo Molnar | 7284c6d | 2017-02-02 12:14:19 +0100 | [diff] [blame] | 7 | /* |
| 8 | * Interface between cpufreq drivers and the scheduler: |
| 9 | */ |
| 10 | |
| Peter Zijlstra | 8f111bc | 2017-12-20 16:26:12 +0100 | [diff] [blame] | 11 | #define SCHED_CPUFREQ_IOWAIT (1U << 0) |
| Peter Zijlstra | ea14b57e | 2018-02-02 10:27:00 +0100 | [diff] [blame] | 12 | #define SCHED_CPUFREQ_MIGRATION (1U << 1) |
| Ingo Molnar | 7284c6d | 2017-02-02 12:14:19 +0100 | [diff] [blame] | 13 | |
| Ingo Molnar | 7284c6d | 2017-02-02 12:14:19 +0100 | [diff] [blame] | 14 | #ifdef CONFIG_CPU_FREQ |
| 15 | struct update_util_data { |
| 16 | void (*func)(struct update_util_data *data, u64 time, unsigned int flags); |
| 17 | }; |
| 18 | |
| 19 | void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data, |
| 20 | void (*func)(struct update_util_data *data, u64 time, |
| 21 | unsigned int flags)); |
| 22 | void cpufreq_remove_update_util_hook(int cpu); |
| Quentin Perret | 938e5e4 | 2018-12-03 09:56:15 +0000 | [diff] [blame] | 23 | |
| 24 | static inline unsigned long map_util_freq(unsigned long util, |
| 25 | unsigned long freq, unsigned long cap) |
| 26 | { |
| 27 | return (freq + (freq >> 2)) * util / cap; |
| 28 | } |
| Ingo Molnar | 7284c6d | 2017-02-02 12:14:19 +0100 | [diff] [blame] | 29 | #endif /* CONFIG_CPU_FREQ */ |
| 30 | |
| Ingo Molnar | 55687da | 2017-02-08 18:51:31 +0100 | [diff] [blame] | 31 | #endif /* _LINUX_SCHED_CPUFREQ_H */ |