From 584ee3dcb1d6232857c1e38bb28d9f6bf0ec89f5 Mon Sep 17 00:00:00 2001
From: Alexandra Yates <alexandra.yates@linux.intel.com>
Date: Wed, 18 Nov 2015 14:58:40 -0800
Subject: [PATCH] intel_pstate: Fix "performance" mode behavior with HWP
enabled
If hardware-driven P-state selection (HWP) is enabled, the
"performance" mode of intel_pstate should only allow the processor
to use the highest-performance P-state available. That is not
the case currently, so make it actually happen.
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Alexandra Yates <alexandra.yates@linux.intel.com>
[ rjw: Subject and changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/cpufreq/intel_pstate.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 8ad1f958ffe47f..4d07cbd2b23cfb 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -1101,6 +1101,8 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
policy->max >= policy->cpuinfo.max_freq) {
pr_debug("intel_pstate: set performance\n");
limits = &performance_limits;
+ if (hwp_active)
+ intel_pstate_hwp_set();
return 0;
}
--
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