RE: [PATCH v2] drm/amdgpu: add HW_IP_VCN_UNIFIED type

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[AMD Official Use Only - General]

>> Why exactly do we need a new define for this? Essentially the encode queue is extended with new functionality, isn't it?
>> So I think we should just stick to AMDGPU_HW_IP_VCN_ENC and not add an alias for it.

Yes, it extended the encode queue to include new functionality, and that looks little confused when send
decoding jobs to the encoding queue. Then I assume this bias can reduce the confusion.

Does this change make sense in this regard? certainly we can stick to AMDGPU_HW_IP_VCN_ENC.

Thanks,
Ruijing

-----Original Message-----
From: Koenig, Christian <Christian.Koenig@xxxxxxx>
Sent: Friday, July 15, 2022 11:18 AM
To: Dong, Ruijing <Ruijing.Dong@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Liu, Leo <Leo.Liu@xxxxxxx>
Subject: Re: [PATCH v2] drm/amdgpu: add HW_IP_VCN_UNIFIED type

Am 15.07.22 um 16:44 schrieb Ruijing Dong:
> Define HW_IP_VCN_UNIFIED type the same as HW_IP_VCN_ENC.
>
> VCN4 support for libdrm needs a new definition for the unified queue,
> so that it can align to the kernel.
>
> link:
> https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/245/commits
>
> Signed-off-by: Ruijing Dong <ruijing.dong@xxxxxxx>
> ---
>   include/uapi/drm/amdgpu_drm.h | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/include/uapi/drm/amdgpu_drm.h
> b/include/uapi/drm/amdgpu_drm.h index 18d3246d636e..fe33db8441bc
> 100644
> --- a/include/uapi/drm/amdgpu_drm.h
> +++ b/include/uapi/drm/amdgpu_drm.h
> @@ -560,6 +560,7 @@ struct drm_amdgpu_gem_va {
>   #define AMDGPU_HW_IP_UVD_ENC      5
>   #define AMDGPU_HW_IP_VCN_DEC      6
>   #define AMDGPU_HW_IP_VCN_ENC      7
> +#define AMDGPU_HW_IP_VCN_UNIFIED  AMDGPU_HW_IP_VCN_ENC

Why exactly do we need a new define for this? Essentially the encode queue is extended with new functionality, isn't it?

So I think we should just stick to AMDGPU_HW_IP_VCN_ENC and not add an alias for it.

Regards,
Christian.

>   #define AMDGPU_HW_IP_VCN_JPEG     8
>   #define AMDGPU_HW_IP_NUM          9
>





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