diff mbox series

[v2,5/5] cpufreq: CPPC: Enable dvfs_possible_from_any_cpu

Message ID 20220518090901.2724518-5-pierre.gondois@arm.com
State Accepted
Commit 2d41dc23804d075e248ff01d16d9d424bcbc1180
Headers show
Series [v2,1/5] ACPI: CPPC: Check _OSC for flexible address space | expand

Commit Message

Pierre Gondois May 18, 2022, 9:09 a.m. UTC 
From: Pierre Gondois <Pierre.Gondois@arm.com>

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>
---
 drivers/cpufreq/cppc_cpufreq.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index 000a0c610c30..ad1535fbf389 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -558,6 +558,7 @@  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