Release 4.7 drivers/cpufreq/cpufreq_performance.c

/*
 *  linux/drivers/cpufreq/cpufreq_performance.c
 *
 *  Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */


#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/cpufreq.h>
#include <linux/init.h>
#include <linux/module.h>



static int cpufreq_governor_performance(struct cpufreq_policy *policy,
					unsigned int event)
{
	switch (event) {
	case CPUFREQ_GOV_START:
	case CPUFREQ_GOV_LIMITS:
		pr_debug("setting to %u kHz because of event %u\n",
						policy->max, event);
		__cpufreq_driver_target(policy, policy->max,
						CPUFREQ_RELATION_H);
		break;
	default:
		break;
	}
	return 0;
}

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static struct cpufreq_governor cpufreq_gov_performance = {
	.name		= "performance",
	.governor	= cpufreq_governor_performance,
	.owner		= THIS_MODULE,
};



static int __init cpufreq_gov_performance_init(void)
{
	return cpufreq_register_governor(&cpufreq_gov_performance);
}

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static void __exit cpufreq_gov_performance_exit(void)
{
	cpufreq_unregister_governor(&cpufreq_gov_performance);
}

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#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE


struct cpufreq_governor *cpufreq_default_governor(void)
{
	return &cpufreq_gov_performance;
}
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#endif
#ifndef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE


struct cpufreq_governor *cpufreq_fallback_governor(void)
{
	return &cpufreq_gov_performance;
}
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#endif

MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
MODULE_LICENSE("GPL");


fs_initcall(cpufreq_gov_performance_init);

module_exit(cpufreq_gov_performance_exit);
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Directory: drivers/cpufreq

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