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1da177e4 LT |
1 | /* |
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 | ||
e08f5f5b GS |
18 | #define dprintk(msg...) \ |
19 | cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg) | |
1da177e4 LT |
20 | |
21 | ||
22 | static 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: | |
e08f5f5b GS |
28 | 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); | |
1da177e4 LT |
32 | break; |
33 | default: | |
34 | break; | |
35 | } | |
36 | return 0; | |
37 | } | |
32ee8c3e | 38 | |
c4d14bc0 SW |
39 | #ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE |
40 | static | |
41 | #endif | |
1da177e4 LT |
42 | struct cpufreq_governor cpufreq_gov_performance = { |
43 | .name = "performance", | |
44 | .governor = cpufreq_governor_performance, | |
45 | .owner = THIS_MODULE, | |
46 | }; | |
1da177e4 LT |
47 | |
48 | ||
49 | static int __init cpufreq_gov_performance_init(void) | |
50 | { | |
51 | return cpufreq_register_governor(&cpufreq_gov_performance); | |
52 | } | |
53 | ||
54 | ||
55 | static void __exit cpufreq_gov_performance_exit(void) | |
56 | { | |
57 | cpufreq_unregister_governor(&cpufreq_gov_performance); | |
58 | } | |
59 | ||
60 | ||
61 | MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>"); | |
62 | MODULE_DESCRIPTION("CPUfreq policy governor 'performance'"); | |
63 | MODULE_LICENSE("GPL"); | |
64 | ||
65 | fs_initcall(cpufreq_gov_performance_init); | |
66 | module_exit(cpufreq_gov_performance_exit); |