* [PATCH 09/12] cpufreq: amd-pstate: update pstate frequency transition delay time
@ 2022-07-07 17:00 Perry Yuan
0 siblings, 0 replies; only message in thread
From: Perry Yuan @ 2022-07-07 17:00 UTC (permalink / raw)
To: rafael.j.wysocki, viresh.kumar, Ray.Huang, Huang Rui,
Rafael J. Wysocki, linux-pm, linux-kernel
Cc: Deepak.Sharma, Mario.Limonciello, Nathan.Fontenot,
Alexander.Deucher, Jinzhou.Su, Xinmei.Huang, Xiaojian.Du,
Li.Meng, Perry Yuan
change the default transition latency to be 20ms that is more
reasonable transition delay for AMD processors.
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 173a45cf292a..b54b3b559993 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
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2022-07-07 17:00 [PATCH 09/12] cpufreq: amd-pstate: update pstate frequency transition delay time Perry Yuan
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