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cpufreq: Register governors at core_initcall

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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>
This commit is contained in:
Quentin Perret 2020-06-29 13:54:59 +05:30 • committed by Rafael J. Wysocki
parent 8cc46ae565
commit 10dd8573b0
8 changed files with 36 additions and 106 deletions
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6
kernel/sched/cpufreq_schedutil.c
View file

@ -909,11 +909,7 @@ struct cpufreq_governor *cpufreq_default_governor(void)
}
#endif
static int __init sugov_register(void)
{
return cpufreq_register_governor(&schedutil_gov);
}
core_initcall(sugov_register);
cpufreq_governor_init(schedutil_gov);
#ifdef CONFIG_ENERGY_MODEL
extern bool sched_energy_update;