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