blob: cf117deb39b1f45c53ade61086236eb888d24a71 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/drivers/cpufreq/cpufreq_performance.c
3 *
4 * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
5 *
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 *
11 */
12
Viresh Kumardb701152012-10-23 01:29:03 +020013#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
14
Linus Torvalds1da177e2005-04-16 15:20:36 -070015#include <linux/cpufreq.h>
16#include <linux/init.h>
Viresh Kumar5ff0a262013-08-06 22:53:03 +053017#include <linux/module.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070018
Linus Torvalds1da177e2005-04-16 15:20:36 -070019static int cpufreq_governor_performance(struct cpufreq_policy *policy,
20 unsigned int event)
21{
22 switch (event) {
23 case CPUFREQ_GOV_START:
24 case CPUFREQ_GOV_LIMITS:
Dominik Brodowski2d06d8c2011-03-27 15:04:46 +020025 pr_debug("setting to %u kHz because of event %u\n",
Gautham R Shenoye08f5f52006-10-26 16:20:58 +053026 policy->max, event);
27 __cpufreq_driver_target(policy, policy->max,
28 CPUFREQ_RELATION_H);
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 break;
30 default:
31 break;
32 }
33 return 0;
34}
Dave Jones32ee8c32006-02-28 00:43:23 -050035
Sven Wegenerc4d14bc2008-09-20 16:50:08 +020036#ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE
37static
38#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070039struct cpufreq_governor cpufreq_gov_performance = {
40 .name = "performance",
41 .governor = cpufreq_governor_performance,
42 .owner = THIS_MODULE,
43};
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
Linus Torvalds1da177e2005-04-16 15:20:36 -070045static int __init cpufreq_gov_performance_init(void)
46{
47 return cpufreq_register_governor(&cpufreq_gov_performance);
48}
49
Linus Torvalds1da177e2005-04-16 15:20:36 -070050static void __exit cpufreq_gov_performance_exit(void)
51{
52 cpufreq_unregister_governor(&cpufreq_gov_performance);
53}
54
Linus Torvalds1da177e2005-04-16 15:20:36 -070055MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
56MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
57MODULE_LICENSE("GPL");
58
59fs_initcall(cpufreq_gov_performance_init);
60module_exit(cpufreq_gov_performance_exit);