Viewing file:  cpufreq.h (983 B) -rw-r--r--
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/* 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 */
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