On Thu, Oct 9, 2025 at 2:50 PM Jonathan Kim <[email protected]> wrote:
>
> Initialized doorbells should be set to invalid rather than 0 to prevent
> driver from over counting hung doorbells since it checks against the
> invalid value to begin with.
>
> Signed-off-by: Jonathan Kim <[email protected]>

Reviewed-by: Alex Deucher <[email protected]>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c 
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> index 8d03e8c9cc6d..c698e183beda 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
> @@ -409,7 +409,7 @@ int amdgpu_mes_detect_and_reset_hung_queues(struct 
> amdgpu_device *adev,
>                 return -EINVAL;
>
>         /* Clear the doorbell array before detection */
> -       memset(adev->mes.hung_queue_db_array_cpu_addr, 0,
> +       memset(adev->mes.hung_queue_db_array_cpu_addr, 
> AMDGPU_MES_INVALID_DB_OFFSET,
>                 adev->mes.hung_queue_db_array_size * sizeof(u32));
>         input.queue_type = queue_type;
>         input.detect_only = detect_only;
> --
> 2.34.1
>

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