Re: [PATCH 2/2] drm/amdkfd: Enable SDMA queue reset on gfx v12.1

[Alex Deucher]

On Mon, Mar 23, 2026 at 3:04 PM Amber Lin <amber....@amd.com> wrote:
>
> After suspend/resume sdma_gang is supported on MES 12.1, SDMA queue reset
> is supported too.
>
> Signed-off-by: Amber Lin <amber....@amd.com>
> ---
>  drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c 
> b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> index 4c52819aef9e..42d52c1f5109 100644
> --- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> +++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
> @@ -514,7 +514,8 @@ static ssize_t node_show(struct kobject *kobj, struct 
> attribute *attr,
>                         dev->node_props.capability |=
>                                         HSA_CAP_AQL_QUEUE_DOUBLE_MAP;
>
> -               if (KFD_GC_VERSION(dev->gpu) < IP_VERSION(10, 0, 0) &&
> +               if ((KFD_GC_VERSION(dev->gpu) < IP_VERSION(10, 0, 0) ||
> +                       KFD_GC_VERSION(dev->gpu) == IP_VERSION(12, 1, 0)) &&

I thought this already worked on other MES-enabled chips.

Alex

>                         (dev->gpu->adev->sdma.supported_reset & 
> AMDGPU_RESET_TYPE_PER_QUEUE))
>                                 dev->node_props.capability2 |= 
> HSA_CAP2_PER_SDMA_QUEUE_RESET_SUPPORTED;
>
> --
> 2.43.0
>