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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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