39 lines
983 B
C
39 lines
983 B
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef _LINUX_SCHED_CPUFREQ_H
|
||
|
|
#define _LINUX_SCHED_CPUFREQ_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Interface between cpufreq drivers and the scheduler:
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define SCHED_CPUFREQ_IOWAIT (1U << 0)
|
||
|
|
|
||
|
|
#ifdef CONFIG_CPU_FREQ
|
||
|
|
struct cpufreq_policy;
|
||
|
|
|
||
|
|
struct update_util_data {
|
||
|
|
void (*func)(struct update_util_data *data, u64 time, unsigned int flags);
|
||
|
|
};
|
||
|
|
|
||
|
|
void cpufreq_add_update_util_hook(int cpu, struct update_util_data *data,
|
||
|
|
void (*func)(struct update_util_data *data, u64 time,
|
||
|
|
unsigned int flags));
|
||
|
|
void cpufreq_remove_update_util_hook(int cpu);
|
||
|
|
bool cpufreq_this_cpu_can_update(struct cpufreq_policy *policy);
|
||
|
|
|
||
|
|
static inline unsigned long map_util_freq(unsigned long util,
|
||
|
|
unsigned long freq, unsigned long cap)
|
||
|
|
{
|
||
|
|
return freq * util / cap;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned long map_util_perf(unsigned long util)
|
||
|
|
{
|
||
|
|
return util + (util >> 2);
|
||
|
|
}
|
||
|
|
#endif /* CONFIG_CPU_FREQ */
|
||
|
|
|
||
|
|
#endif /* _LINUX_SCHED_CPUFREQ_H */
|