arch_topology: Export arch_freq_scale and helpers
authorViresh Kumar <viresh.kumar@linaro.org>
Wed, 10 Mar 2021 02:55:27 +0000 (08:25 +0530)
committerViresh Kumar <viresh.kumar@linaro.org>
Fri, 12 Mar 2021 05:05:57 +0000 (10:35 +0530)
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>
drivers/base/arch_topology.c

index ebcd2ea3091f0302444e53dc2d114942822772b7..c1179edc0f3b8341fc6dc0752b8d8f1d128d479b 100644 (file)
@@ -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)