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38 lines
999 B
38 lines
999 B
/* 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 + (freq >> 2)) * 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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