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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 14 15 #include <linux/cpufreq.h> 16 #include <linux/init.h> 17 #include <linux/module.h> 18 19 static void cpufreq_gov_performance_limits(struct cpufreq_policy *policy) 20 { 21 pr_debug("setting to %u kHz\n", policy->max); 22 __cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H); 23 } 24 25 static struct cpufreq_governor cpufreq_gov_performance = { 26 .name = "performance", 27 .owner = THIS_MODULE, 28 .limits = cpufreq_gov_performance_limits, 29 }; 30 31 static int __init cpufreq_gov_performance_init(void) 32 { 33 return cpufreq_register_governor(&cpufreq_gov_performance); 34 } 35 36 static void __exit cpufreq_gov_performance_exit(void) 37 { 38 cpufreq_unregister_governor(&cpufreq_gov_performance); 39 } 40 41 #ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE 42 struct cpufreq_governor *cpufreq_default_governor(void) 43 { 44 return &cpufreq_gov_performance; 45 } 46 #endif 47 #ifndef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE 48 struct cpufreq_governor *cpufreq_fallback_governor(void) 49 { 50 return &cpufreq_gov_performance; 51 } 52 #endif 53 54 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>"); 55 MODULE_DESCRIPTION("CPUfreq policy governor 'performance'"); 56 MODULE_LICENSE("GPL"); 57 58 fs_initcall(cpufreq_gov_performance_init); 59 module_exit(cpufreq_gov_performance_exit); 60