* [PATCH 12/12] cpufreq: amd_pstate: update transition delay time to 1ms
@ 2022-07-07 17:01 Perry Yuan
0 siblings, 0 replies; only message in thread
From: Perry Yuan @ 2022-07-07 17:01 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
Update transition delay time to 1ms, in the AMD CPU autonomous mode and
non-autonomous mode, CPPC firmware will decide frequency at 1ms timescale
based on the workload utilization.
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 6d81a9a94dde..f16ad0b108e4 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -42,7 +42,7 @@
#include "amd-pstate-trace.h"
#define AMD_PSTATE_TRANSITION_LATENCY 20000
-#define AMD_PSTATE_TRANSITION_DELAY 500
+#define AMD_PSTATE_TRANSITION_DELAY 1000
/*
* TODO: We need more time to fine tune processors with shared memory solution
--
2.25.1
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