blob: 7e2e515087f89aba2498508460d1125f2f9f9f68 [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
13#include <linux/kernel.h>
14#include <linux/module.h>
15#include <linux/cpufreq.h>
16#include <linux/init.h>
17
Gautham R Shenoye08f5f52006-10-26 16:20:58 +053018#define dprintk(msg...) \
19 cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21
22static int cpufreq_governor_performance(struct cpufreq_policy *policy,
23 unsigned int event)
24{
25 switch (event) {
26 case CPUFREQ_GOV_START:
27 case CPUFREQ_GOV_LIMITS:
Gautham R Shenoye08f5f52006-10-26 16:20:58 +053028 dprintk("setting to %u kHz because of event %u\n",
29 policy->max, event);
30 __cpufreq_driver_target(policy, policy->max,
31 CPUFREQ_RELATION_H);
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 break;
33 default:
34 break;
35 }
36 return 0;
37}
Dave Jones32ee8c32006-02-28 00:43:23 -050038
Sven Wegenerc4d14bc2008-09-20 16:50:08 +020039#ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE
40static
41#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070042struct cpufreq_governor cpufreq_gov_performance = {
43 .name = "performance",
44 .governor = cpufreq_governor_performance,
45 .owner = THIS_MODULE,
46};
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
48
49static int __init cpufreq_gov_performance_init(void)
50{
51 return cpufreq_register_governor(&cpufreq_gov_performance);
52}
53
54
55static void __exit cpufreq_gov_performance_exit(void)
56{
57 cpufreq_unregister_governor(&cpufreq_gov_performance);
58}
59
60
61MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
62MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
63MODULE_LICENSE("GPL");
64
65fs_initcall(cpufreq_gov_performance_init);
66module_exit(cpufreq_gov_performance_exit);