[PATCH] drm/amdgpu: save VCN instances init info before jpeg init

[Chen, JingWen (Wayne)]

Reviewed-by: Jingwen Chen <Jingwen.Chen2 at amd.com>

Best Regards,
JingWen Chen

On 2023/10/10 14:27, Lin.Cao wrote:
> JPEG init header will overwirte vcn init header info which will
> loss some debug information
> 
> Signed-off-by: Lin.Cao <lincao12 at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c
> index a3768aefb6b6..bc38b90f8cf8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v4_0.c
> @@ -431,6 +431,10 @@ static int jpeg_v4_0_start_sriov(struct amdgpu_device *adev)
>   	end.cmd_header.command_type =
>   		MMSCH_COMMAND__END;
>   
> +	size = sizeof(struct mmsch_v4_0_init_header);
> +	table_loc = (uint32_t *)table->cpu_addr;
> +	memcpy(&header, (void *)table_loc, size);
> +
>   	header.version = MMSCH_VERSION;
>   	header.total_size = RREG32_SOC15(VCN, 0, regMMSCH_VF_CTX_SIZE);
>