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From 5a2cb154e11490e5ba05975c7a537d0bafb12bba Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sun, 22 Jan 2017 18:51:13 +0000
Subject: [PATCH 122/126] tweak perfbias
---
arch/x86/kernel/cpu/intel.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index b720dacac051..c01bb1632cbf 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -467,12 +467,12 @@ static void init_intel_energy_perf(struct cpuinfo_x86 *c)
return;
rdmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb);
- if ((epb & 0xF) != ENERGY_PERF_BIAS_PERFORMANCE)
+ if ((epb & 0xF) >= ENERGY_PERF_BIAS_NORMAL)
return;
- pr_warn_once("ENERGY_PERF_BIAS: Set to 'normal', was 'performance'\n");
+ pr_warn_once("ENERGY_PERF_BIAS: Set to 'performance', was 'normal'\n");
pr_warn_once("ENERGY_PERF_BIAS: View and update with x86_energy_perf_policy(8)\n");
- epb = (epb & ~0xF) | ENERGY_PERF_BIAS_NORMAL;
+ epb = (epb & ~0xF) | ENERGY_PERF_BIAS_PERFORMANCE;
wrmsrl(MSR_IA32_ENERGY_PERF_BIAS, epb);
}
--
2.15.0
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