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authorSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>2015-01-29 20:17:13 (GMT)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-01-30 00:52:17 (GMT)
commit630ec286dd85c5838493ab7ef975881c42069ef0 (patch)
tree67ba7b127e3e4a45f8c58878df236a5ddcf40ddb /drivers/cpufreq
parent0522424ecb333c0874c4e74bc053dd662bed40df (diff)
downloadlinux-630ec286dd85c5838493ab7ef975881c42069ef0.tar.xz
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>
Diffstat (limited to 'drivers/cpufreq')
-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;