Re: [PATCH v4 11/13] cpufreq: amd_pstate: update transition delay time to 1ms

Huang Rui
2022-07-19T01:05:28Z

On Fri, Jul 15, 2022 at 06:04:30PM +0800, Yuan, Perry wrote:
> 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.
>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
> Signed-off-by: Su Jinzhou <Jinzhou.Su@amd.com>

Please squeeze this patch into patch 9. I don't really want to separate the
transition marco update as two patches.

Thanks,
Ray

> ---
> 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 4f8600a36194..d3bc441b3923 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
> --
> 2.32.0
>