11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/drivers/cpufreq/cpufreq_performance.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de> 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify 81da177e4SLinus Torvalds * it under the terms of the GNU General Public License version 2 as 91da177e4SLinus Torvalds * published by the Free Software Foundation. 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds */ 121da177e4SLinus Torvalds 13db701151SViresh Kumar #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 14db701151SViresh Kumar 151da177e4SLinus Torvalds #include <linux/cpufreq.h> 161da177e4SLinus Torvalds #include <linux/init.h> 175ff0a268SViresh Kumar #include <linux/module.h> 181da177e4SLinus Torvalds 19e788892bSRafael J. Wysocki static void cpufreq_gov_performance_limits(struct cpufreq_policy *policy) 201da177e4SLinus Torvalds { 2116de72b9SRafael J. Wysocki pr_debug("setting to %u kHz\n", policy->max); 22e788892bSRafael J. Wysocki __cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H); 231da177e4SLinus Torvalds } 241da177e4SLinus Torvalds 25de1df26bSRafael J. Wysocki static struct cpufreq_governor cpufreq_gov_performance = { 261da177e4SLinus Torvalds .name = "performance", 271da177e4SLinus Torvalds .owner = THIS_MODULE, 28e788892bSRafael J. Wysocki .limits = cpufreq_gov_performance_limits, 291da177e4SLinus Torvalds }; 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds static int __init cpufreq_gov_performance_init(void) 321da177e4SLinus Torvalds { 331da177e4SLinus Torvalds return cpufreq_register_governor(&cpufreq_gov_performance); 341da177e4SLinus Torvalds } 351da177e4SLinus Torvalds 361da177e4SLinus Torvalds static void __exit cpufreq_gov_performance_exit(void) 371da177e4SLinus Torvalds { 381da177e4SLinus Torvalds cpufreq_unregister_governor(&cpufreq_gov_performance); 391da177e4SLinus Torvalds } 401da177e4SLinus Torvalds 41de1df26bSRafael J. Wysocki #ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE 42de1df26bSRafael J. Wysocki struct cpufreq_governor *cpufreq_default_governor(void) 43de1df26bSRafael J. Wysocki { 44de1df26bSRafael J. Wysocki return &cpufreq_gov_performance; 45de1df26bSRafael J. Wysocki } 46de1df26bSRafael J. Wysocki #endif 47de1df26bSRafael J. Wysocki #ifndef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE 48de1df26bSRafael J. Wysocki struct cpufreq_governor *cpufreq_fallback_governor(void) 49de1df26bSRafael J. Wysocki { 50de1df26bSRafael J. Wysocki return &cpufreq_gov_performance; 51de1df26bSRafael J. Wysocki } 52de1df26bSRafael J. Wysocki #endif 53de1df26bSRafael J. Wysocki 541da177e4SLinus Torvalds MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>"); 551da177e4SLinus Torvalds MODULE_DESCRIPTION("CPUfreq policy governor 'performance'"); 561da177e4SLinus Torvalds MODULE_LICENSE("GPL"); 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds fs_initcall(cpufreq_gov_performance_init); 591da177e4SLinus Torvalds module_exit(cpufreq_gov_performance_exit); 60