文件操作 - cpufreq.h
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文件: /usr/src/kernels/4.18.0-553.124.4.el8_10.x86_64/include/linux/sched/cpufreq.h
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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 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); static inline unsigned long map_util_freq(unsigned long util, unsigned long freq, unsigned long cap) { return (freq + (freq >> 2)) * 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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