RE: [PATCH 2/2] drm/amdgpu: Set queue reset method for GC 12.1

AMD General

> -----Original Message-----
> From: Lin, Amber <[email protected]>
> Sent: Thursday, August 20, 2026 11:25 PM
> To: [email protected]; Liu, Shaoyun <[email protected]>;
> Deucher, Alexander <[email protected]>; Zhang, Jesse(Jie)
> <[email protected]>
> Cc: Lin, Amber <[email protected]>
> Subject: [PATCH 2/2] drm/amdgpu: Set queue reset method for GC 12.1
>
> Explicitely set use_mmio_for_reset=false in gfx_v12_1_sw_init for using MES to
> perform queue/pipe reset
>
> Signed-off-by: Amber Lin <[email protected]>
> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
> index 9dd7a3335719..97f4da7b7607 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c
> @@ -1560,6 +1560,9 @@ static int gfx_v12_1_sw_init(struct amdgpu_ip_block
> *ip_block)
>
>       gfx_v12_1_alloc_ip_dump(adev);
>
> +     adev->gfx.me.use_mmio_for_reset = false;
> +     adev->gfx.mec.use_mmio_for_reset = false;
> +

The MES firmware already supports queue/pipeline reset, right? Do I need to check the MES firmware version before switching to MES?
Apart form that, the series is Review-by:Jesse Zhang <[email protected]>

Thanks
Jesse

>       mutex_init(&adev->gfx.mec.reset_mutex);
>
>       return 0;
> --
> 2.43.0