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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2015-01-29 12:17:13 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-01-30 01:52:17 +0100
commit630ec286dd85c5838493ab7ef975881c42069ef0 (patch)
tree67ba7b127e3e4a45f8c58878df236a5ddcf40ddb
parent0522424ecb333c0874c4e74bc053dd662bed40df (diff)
downloadop-kernel-dev-630ec286dd85c5838493ab7ef975881c42069ef0.zip
op-kernel-dev-630ec286dd85c5838493ab7ef975881c42069ef0.tar.gz
intel_pstate: respect cpufreq policy request
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> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-rw-r--r--drivers/cpufreq/intel_pstate.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 80ecc35..dfee572 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -919,7 +919,8 @@ 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;
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