[PATCH] drm/amdgpu/vcn: reset fw_shared under SRIOV

[Alex Deucher]

On Wed, Dec 11, 2024 at 4:48 PM Bokun Zhang <bokun.zhang at amd.com> wrote:
>
> - The previous patch only considered the case for baremetal
>   and not applicable for SRIOV code path. We also need to
>   init fw_share for SRIOV VF
>
> Signed-off-by: Bokun Zhang <bokun.zhang at amd.com>

Fixes: c4b519b70d9f ("drm/amdgpu/vcn: reset fw_shared when VCPU
buffers corrupted on vcn v4.0.3")

Acked-by: Alex Deucher <alexander.deucher at amd.com>

> Change-Id: If26a377a2fe8f2aa09bfa21fc54bf26e80fd564c
> ---
>  drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
> index eeade7366e82..ecdc027f8220 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c
> @@ -957,6 +957,8 @@ static int vcn_v4_0_3_start_sriov(struct amdgpu_device *adev)
>         for (i = 0; i < adev->vcn.num_vcn_inst; i++) {
>                 vcn_inst = GET_INST(VCN, i);
>
> +               vcn_v4_0_3_fw_shared_init(adev, vcn_inst);
> +
>                 memset(&header, 0, sizeof(struct mmsch_v4_0_3_init_header));
>                 header.version = MMSCH_VERSION;
>                 header.total_size = sizeof(struct mmsch_v4_0_3_init_header) >> 2;
> --
> 2.34.1
>