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arch_topology: Export arch_freq_scale and helpers

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It is possible now for other parts of the kernel to provide their own
implementation of sched_freq_tick() and they can very well be modules
themselves (like CPPC cpufreq driver, which is going to use these in a
later commit).

Export arch_freq_scale and topology_{set|clear}_scale_freq_source().

Reviewed-by: Ionela Voinescu <ionela.voinescu@arm.com>
Tested-by: Ionela Voinescu <ionela.voinescu@arm.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Viresh Kumar 2021-03-10 08:25:27 +05:30
parent 01e055c120
commit 2f5339582e
1 changed files with 3 additions and 0 deletions
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3
drivers/base/arch_topology.c
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@ -78,6 +78,7 @@ void topology_set_scale_freq_source(struct scale_freq_data *data,
update_scale_freq_invariant(true);
}
EXPORT_SYMBOL_GPL(topology_set_scale_freq_source);
void topology_clear_scale_freq_source(enum scale_freq_source source,
const struct cpumask *cpus)
@ -96,6 +97,7 @@ void topology_clear_scale_freq_source(enum scale_freq_source source,
update_scale_freq_invariant(false);
}
EXPORT_SYMBOL_GPL(topology_clear_scale_freq_source);
void topology_scale_freq_tick(void)
{
@ -106,6 +108,7 @@ void topology_scale_freq_tick(void)
}
DEFINE_PER_CPU(unsigned long, arch_freq_scale) = SCHED_CAPACITY_SCALE;
EXPORT_PER_CPU_SYMBOL_GPL(arch_freq_scale);
void topology_set_freq_scale(const struct cpumask *cpus, unsigned long cur_freq,
unsigned long max_freq)