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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 | |
| 19 | static 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: |
| 25 | pr_debug("setting to %u kHz because of event %u\n", |
| 26 | policy->max, event); |
| 27 | __cpufreq_driver_target(policy, policy->max, |
| 28 | CPUFREQ_RELATION_H); |
| 29 | break; |
| 30 | default: |
| 31 | break; |
| 32 | } |
| 33 | return 0; |
| 34 | } |
| 35 | |
| 36 | #ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE |
| 37 | static |
| 38 | #endif |
| 39 | struct cpufreq_governor cpufreq_gov_performance = { |
| 40 | .name = "performance", |
| 41 | .governor = cpufreq_governor_performance, |
| 42 | .owner = THIS_MODULE, |
| 43 | }; |
| 44 | |
| 45 | |
| 46 | static int __init cpufreq_gov_performance_init(void) |
| 47 | { |
| 48 | return cpufreq_register_governor(&cpufreq_gov_performance); |
| 49 | } |
| 50 | |
| 51 | |
| 52 | static void __exit cpufreq_gov_performance_exit(void) |
| 53 | { |
| 54 | cpufreq_unregister_governor(&cpufreq_gov_performance); |
| 55 | } |
| 56 | |
| 57 | |
| 58 | MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>"); |
| 59 | MODULE_DESCRIPTION("CPUfreq policy governor 'performance'"); |
| 60 | MODULE_LICENSE("GPL"); |
| 61 | |
| 62 | fs_initcall(cpufreq_gov_performance_init); |
| 63 | module_exit(cpufreq_gov_performance_exit); |
| 64 |
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