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authorPierre Gondois <Pierre.Gondois@arm.com>2022-05-18 11:09:01 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2022-05-19 19:45:34 +0200
commit2d41dc23804d075e248ff01d16d9d424bcbc1180 (patch)
tree6e206089b2b02a9041fe194eb3753127d3e1df32
parent3cc30dd00a580ca0c9c0b01639841cfd72d10129 (diff)
downloadlinux-2d41dc23804d075e248ff01d16d9d424bcbc1180.tar.bz2
cpufreq: CPPC: Enable dvfs_possible_from_any_cpu
The communication mean of the _CPC desired performance can be PCC, System Memory, System IO, or Functional Fixed Hardware (FFH). PCC, SystemMemory and SystemIo address spaces are available from any CPU. Thus, dvfs_possible_from_any_cpu should be enabled in such case. For FFH, let the FFH implementation do smp_call_function_*() calls. Signed-off-by: Pierre Gondois <pierre.gondois@arm.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/cpufreq/cppc_cpufreq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index bb4118cea2a0..d092c9bb4ba3 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -743,6 +743,7 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy)
}
policy->fast_switch_possible = cppc_allow_fast_switch();
+ policy->dvfs_possible_from_any_cpu = true;
/*
* If 'highest_perf' is greater than 'nominal_perf', we assume CPU Boost