Re: [PATCH] amdgpu/psp: Adjust usleep_range in fence wait

["Lazar, Lijo" <lijo.lazar@amd.com>]

On 10-Feb-26 1:38 PM, Ce Sun wrote:
> Tune the sleep interval in the PSP fence wait loop from 10-100us to 60-100us.
> This adjustment results in an overall wait window of 1.2s (60us * 20000 iterations)
> to 2 seconds (100us * 20000 iterations), which guarantees that we can retrieve
> the correct fence value
> 
> Signed-off-by: Ce Sun <cesun102@amd.com>

Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>

Thanks,
Lijo

> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> index b0540b009e84..5eeea965032a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
> @@ -735,7 +735,7 @@ psp_cmd_submit_buf(struct psp_context *psp,
>   		ras_intr = amdgpu_ras_intr_triggered();
>   		if (ras_intr)
>   			break;
> -		usleep_range(10, 100);
> +		usleep_range(60, 100);
>   		amdgpu_device_invalidate_hdp(psp->adev, NULL);
>   	}
>