linux-kernel - Re: [PATCH v2 00/14] media: mediatek: vcodec: support video decoder in mt8196

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Message-ID: <84173ee52723100637570e05536cb534aae00793.camel@collabora.com>
Date: Fri, 28 Nov 2025 14:30:00 -0500
From: Nicolas Dufresne <nicolas.dufresne@...labora.com>
To: Yunfei Dong <yunfei.dong@...iatek.com>, Nícolas "F .
 R . A . Prado" <nfraprado@...labora.com>, Sebastian Fricke
 <sebastian.fricke@...labora.com>, Hans Verkuil	 <hverkuil-cisco@...all.nl>,
 AngeloGioacchino Del Regno	 <angelogioacchino.delregno@...labora.com>,
 Benjamin Gaignard	 <benjamin.gaignard@...labora.com>, Nathan Hebert
 <nhebert@...omium.org>,  Daniel Almeida <daniel.almeida@...labora.com>
Cc: Hsin-Yi Wang <hsinyi@...omium.org>, Fritz Koenig
 <frkoenig@...omium.org>,  Daniel Vetter <daniel@...ll.ch>, Steve Cho
 <stevecho@...omium.org>, linux-media@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
	Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v2 00/14] media: mediatek: vcodec: support video decoder
 in mt8196

Hi,

Le vendredi 15 août 2025 à 16:52 +0800, Yunfei Dong a écrit :
> Using vcp micro processor to support video decoder in mt8196 platform,
> need to add new firmware interface to communicate with vcp in kernel
> side. Then add mt8196 compatible, codec levels/profiles and private data.
> Re-write av1 driver to support extend vsi struct, then change irq table
> and cdf table size.

Please reword, things seems a little reverse, say what you are doing, and then
what is used to do it. This cover should include some level of tests report,
v4l2-compliance (hopefully unchanged) and fluster results (ideally with
regression testing on lets say MT8195, since a driver rewrite is not a little
affaire).

> 
> This patch set depends on "Add VCP support for mt8196"[1]
> 
> [1]
> https://patchwork.kernel.org/project/linux-remoteproc/patch/20250402092134.12293-2-xiangzhi.tang@mediatek.com/

This seems to have stalled at v2, is there an update coming ?

Nicolas

> ---
> Changed in v2:
> - re-write the commit message for patch 1
> ---
> Yunfei Dong (14):
>   dt-bindings: media: mediatek: vcodec: add decoder dt-bindings for
>     mt8196
>   media: mediatek: vcodec: add decoder compatible to support mt8196
>   media: mediatek: vcodec: add driver to support vcp
>   media: mediatek: vcodec: add driver to support vcp encoder
>   media: mediatek: vcodec: get different firmware ipi id
>   media: mediatek: vcodec: get share memory address
>   media: mediatek: vcodec: define MT8196 vcodec levels.
>   media: mediatek: vcodec: support vcp architecture
>   media: mediatek: vcodec: support 36bit iova address
>   media: mediatek: vcodec: clean xpc status
>   media: mediatek: vcodec: add debug information
>   media: mediatek: vcodec: send share memory address to vcp
>   media: mediatek: decoder: fill av1 buffer size with picinfo
>   media: mediatek: decoder: support av1 extend vsi
> 
>  .../media/mediatek,vcodec-subdev-decoder.yaml |   1 +
>  .../media/platform/mediatek/vcodec/Kconfig    |   4 +
>  .../platform/mediatek/vcodec/common/Makefile  |   4 +
>  .../mediatek/vcodec/common/mtk_vcodec_dbgfs.c |  21 +-
>  .../mediatek/vcodec/common/mtk_vcodec_fw.c    |  16 +
>  .../mediatek/vcodec/common/mtk_vcodec_fw.h    |   2 +
>  .../vcodec/common/mtk_vcodec_fw_priv.h        |  12 +
>  .../vcodec/common/mtk_vcodec_fw_vcp.c         | 493 ++++++++++++++++++
>  .../vcodec/common/mtk_vcodec_fw_vcp.h         | 151 ++++++
>  .../vcodec/decoder/mtk_vcodec_dec_drv.c       |  16 +
>  .../vcodec/decoder/mtk_vcodec_dec_drv.h       |   1 +
>  .../vcodec/decoder/mtk_vcodec_dec_hw.c        |  28 +
>  .../vcodec/decoder/mtk_vcodec_dec_hw.h        |  13 +-
>  .../vcodec/decoder/mtk_vcodec_dec_stateless.c |   6 +
>  .../vcodec/decoder/vdec/vdec_av1_req_lat_if.c |  85 ++-
>  .../decoder/vdec/vdec_h264_req_multi_if.c     |  10 +-
>  .../decoder/vdec/vdec_hevc_req_multi_if.c     |  11 +-
>  .../vcodec/decoder/vdec/vdec_vp8_req_if.c     |   4 +-
>  .../vcodec/decoder/vdec/vdec_vp9_req_lat_if.c |  20 +-
>  .../mediatek/vcodec/decoder/vdec_ipi_msg.h    |   2 +
>  .../mediatek/vcodec/decoder/vdec_vpu_if.c     |   9 +-
>  .../mediatek/vcodec/encoder/mtk_vcodec_enc.c  |   1 -
>  .../mediatek/vcodec/encoder/mtk_vcodec_enc.h  |   2 +
>  include/linux/remoteproc/mtk_vcp_public.h     |   2 +-
>  24 files changed, 871 insertions(+), 43 deletions(-)
>  create mode 100644
> drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vcp.c
>  create mode 100644
> drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vcp.h

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