forked from Minki/linux
10dd8573b0
Currently, most CPUFreq governors are registered at the core_initcall
time when the given governor is the default one, and the module_init
time otherwise.
In preparation for letting users specify the default governor on the
kernel command line, change all of them to be registered at the
core_initcall unconditionally, as it is already the case for the
schedutil and performance governors. This will allow us to assume
that builtin governors have been registered before the built-in
CPUFreq drivers probe.
And since all governors have similar init/exit patterns now, introduce
two new macros, cpufreq_governor_{init,exit}(), to factorize the code.
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* linux/drivers/cpufreq/cpufreq_performance.c
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*
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* Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <linux/cpufreq.h>
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#include <linux/init.h>
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#include <linux/module.h>
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static void cpufreq_gov_performance_limits(struct cpufreq_policy *policy)
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{
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pr_debug("setting to %u kHz\n", policy->max);
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__cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
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}
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static struct cpufreq_governor cpufreq_gov_performance = {
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.name = "performance",
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.owner = THIS_MODULE,
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.limits = cpufreq_gov_performance_limits,
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};
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#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
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struct cpufreq_governor *cpufreq_default_governor(void)
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{
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return &cpufreq_gov_performance;
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}
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#endif
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#ifndef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE
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struct cpufreq_governor *cpufreq_fallback_governor(void)
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{
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return &cpufreq_gov_performance;
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}
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#endif
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MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
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MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
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MODULE_LICENSE("GPL");
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cpufreq_governor_init(cpufreq_gov_performance);
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cpufreq_governor_exit(cpufreq_gov_performance);
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