[PATCH] drm/amd/pm: Increase cache interval time

[Alex Deucher]

On Tue, Aug 5, 2025 at 10:38 AM Asad Kamal <asad.kamal at amd.com> wrote:
>
> Increase cache interval time to 50 ms while fetching system
> metrics table for smu_v13_0_12
>

Can we move the caching up to the device independent level?  It would
be nice to have this for other GPUs.

Alex

> Signed-off-by: Asad Kamal <asad.kamal at amd.com>
> ---
>  drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c
> index fca50f6a8ef6..2ee61c7e8bc8 100644
> --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c
> +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_12_ppt.c
> @@ -372,7 +372,7 @@ static int smu_v13_0_12_get_system_metrics_table(struct smu_context *smu, void *
>         if (bypass_cache || !smu_table->tables[SMU_TABLE_TEMP_METRICS].metrics_time ||
>             time_after(jiffies,
>                        smu_table->tables[SMU_TABLE_TEMP_METRICS].metrics_time +
> -                      msecs_to_jiffies(1))) {
> +                      msecs_to_jiffies(50))) {
>                 ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetSystemMetricsTable, NULL);
>                 if (ret) {
>                         dev_info(smu->adev->dev,
> --
> 2.46.0
>