1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_SCHED_CPUFREQ_H 2 #ifndef _LINUX_SCHED_CPUFREQ_H
3 #define _LINUX_SCHED_CPUFREQ_H 3 #define _LINUX_SCHED_CPUFREQ_H
4 4
5 #include <linux/types.h> 5 #include <linux/types.h>
6 6
7 /* 7 /*
8 * Interface between cpufreq drivers and the s 8 * Interface between cpufreq drivers and the scheduler:
9 */ 9 */
10 10
11 #define SCHED_CPUFREQ_IOWAIT (1U << 0) 11 #define SCHED_CPUFREQ_IOWAIT (1U << 0)
>> 12 #define SCHED_CPUFREQ_MIGRATION (1U << 1)
12 13
13 #ifdef CONFIG_CPU_FREQ 14 #ifdef CONFIG_CPU_FREQ
14 struct cpufreq_policy; <<
15 <<
16 struct update_util_data { 15 struct update_util_data {
17 void (*func)(struct update_util_data *d 16 void (*func)(struct update_util_data *data, u64 time, unsigned int flags);
18 }; 17 };
19 18
20 void cpufreq_add_update_util_hook(int cpu, str 19 void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
21 void (*func)(struct upd 20 void (*func)(struct update_util_data *data, u64 time,
22 unsigned i 21 unsigned int flags));
23 void cpufreq_remove_update_util_hook(int cpu); 22 void cpufreq_remove_update_util_hook(int cpu);
24 bool cpufreq_this_cpu_can_update(struct cpufre <<
25 23
26 static inline unsigned long map_util_freq(unsi 24 static inline unsigned long map_util_freq(unsigned long util,
27 unsign 25 unsigned long freq, unsigned long cap)
28 { 26 {
29 return freq * util / cap; !! 27 return (freq + (freq >> 2)) * util / cap;
30 } <<
31 <<
32 static inline unsigned long map_util_perf(unsi <<
33 { <<
34 return util + (util >> 2); <<
35 } 28 }
36 #endif /* CONFIG_CPU_FREQ */ 29 #endif /* CONFIG_CPU_FREQ */
37 30
38 #endif /* _LINUX_SCHED_CPUFREQ_H */ 31 #endif /* _LINUX_SCHED_CPUFREQ_H */
39 32
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