From: Perry Yuan <Perry.Yuan@amd.com>
To: <rafael.j.wysocki@intel.com>, <viresh.kumar@linaro.org>,
<Ray.Huang@amd.com>
Cc: <Deepak.Sharma@amd.com>, <Mario.Limonciello@amd.com>,
<Nathan.Fontenot@amd.com>, <Alexander.Deucher@amd.com>,
<Jinzhou.Su@amd.com>, <Xinmei.Huang@amd.com>,
<Xiaojian.Du@amd.com>, <Li.Meng@amd.com>,
<linux-pm@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Perry Yuan <Perry.Yuan@amd.com>
Subject: [PATCH v2 09/14] cpufreq: amd-pstate: update pstate frequency transition delay time
Date: Sat, 9 Jul 2022 10:19:27 -0400 [thread overview]
Message-ID: <20220709141927.836240-1-Perry.Yuan@amd.com> (raw)
change the default transition latency to be 20ms that is more
reasonable transition delay for AMD processors in non-EPP driver mode.
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
---
drivers/cpufreq/amd-pstate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index da20e17a140e..21037935e869 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -41,7 +41,7 @@
#include <asm/msr.h>
#include "amd-pstate-trace.h"
-#define AMD_PSTATE_TRANSITION_LATENCY 0x20000
+#define AMD_PSTATE_TRANSITION_LATENCY 20000
#define AMD_PSTATE_TRANSITION_DELAY 500
/*
--
2.25.1
reply other threads:[~2022-07-09 14:19 UTC|newest]
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