* [PATCH] intel_pstate: respect cpufreq policy request
@ 2015-01-29 20:17 Kristen Carlson Accardi
0 siblings, 0 replies; only message in thread
From: Kristen Carlson Accardi @ 2015-01-29 20:17 UTC (permalink / raw)
To: rjw; +Cc: linux-pm, srinivas.pandruvada
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
When thermal or other subsystem requests to change the policy,
use that irrepective of whether cpufreq policy is PERFORMANCE or
not. Without this change, when thermal subsystem passive policy wants
to reduce performance, it still runs at 100%.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
---
drivers/cpufreq/intel_pstate.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 742eefb..61ac9c8 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -887,7 +887,8 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
if (!policy->cpuinfo.max_freq)
return -ENODEV;
- if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) {
+ if (policy->policy == CPUFREQ_POLICY_PERFORMANCE &&
+ policy->max >= policy->cpuinfo.max_freq) {
limits.min_perf_pct = 100;
limits.min_perf = int_tofp(1);
limits.max_policy_pct = 100;
--
1.9.3
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2015-01-29 20:17 [PATCH] intel_pstate: respect cpufreq policy request Kristen Carlson Accardi
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