mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 08:44:21 +08:00
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
|
|
/*
|
|
* linux/drivers/cpufreq/cpufreq_performance.c
|
|
*
|
|
* Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/cpufreq.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
|
|
static void cpufreq_gov_performance_limits(struct cpufreq_policy *policy)
|
|
{
|
|
pr_debug("setting to %u kHz\n", policy->max);
|
|
__cpufreq_driver_target(policy, policy->max, CPUFREQ_RELATION_H);
|
|
}
|
|
|
|
static struct cpufreq_governor cpufreq_gov_performance = {
|
|
.name = "performance",
|
|
.owner = THIS_MODULE,
|
|
.limits = cpufreq_gov_performance_limits,
|
|
};
|
|
|
|
#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE
|
|
struct cpufreq_governor *cpufreq_default_governor(void)
|
|
{
|
|
return &cpufreq_gov_performance;
|
|
}
|
|
#endif
|
|
#ifndef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE
|
|
struct cpufreq_governor *cpufreq_fallback_governor(void)
|
|
{
|
|
return &cpufreq_gov_performance;
|
|
}
|
|
#endif
|
|
|
|
MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
|
|
MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
cpufreq_governor_init(cpufreq_gov_performance);
|
|
cpufreq_governor_exit(cpufreq_gov_performance);
|