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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 | |
18 | #define dprintk(msg...) \ |
19 | cpufreq_debug_printk(CPUFREQ_DEBUG_GOVERNOR, "performance", msg) |
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: |
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); |
32 | break; |
33 | default: |
34 | break; |
35 | } |
36 | return 0; |
37 | } |
38 | |
39 | #ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE |
40 | static |
41 | #endif |
42 | struct cpufreq_governor cpufreq_gov_performance = { |
43 | .name = "performance", |
44 | .governor = cpufreq_governor_performance, |
45 | .owner = THIS_MODULE, |
46 | }; |
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); |
67 |
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