linux-kernel - Re: [PATCH v12, 00/17] media: mtk-vcodec: support for M8192 decoder

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Message-ID: <20220512193917.tu6waopwagm3oyaz@notapiano>
Date:   Thu, 12 May 2022 15:39:17 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Yunfei Dong <yunfei.dong@...iatek.com>
Cc:     Alexandre Courbot <acourbot@...omium.org>,
        Nicolas Dufresne <nicolas@...fresne.ca>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>,
        George Sun <george.sun@...iatek.com>,
        Xiaoyong Lu <xiaoyong.lu@...iatek.com>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Fritz Koenig <frkoenig@...omium.org>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Irui Wang <irui.wang@...iatek.com>,
        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 v12, 00/17] media: mtk-vcodec: support for M8192 decoder

On Thu, May 12, 2022 at 10:19:33AM +0800, Yunfei Dong wrote:
> This series adds support for mt8192 h264/vp8/vp9 decoder drivers. Firstly, refactor
> power/clock/interrupt interfaces for mt8192 is lat and core architecture.
> 
> Secondly, add new functions to get frame buffer size and resolution according
> to decoder capability from scp side. Then add callback function to get/put
> capture buffer in order to enable lat and core decoder in parallel, need to
> adjust GStreamer at the same time. 
> 
> Then add to support MT21C compressed mode and fix v4l2-compliance fail.
> 
> Next, extract H264 request api driver to let mt8183 and mt8192 use the same
> code, and adds mt8192 frame based h264 driver for stateless decoder.
> 
> Lastly, add vp8 and vp9 stateless decoder drivers.
> 
> Patches 1 refactor power/clock/interrupt interface.
> Patches 2~4 get frame buffer size and resolution according to decoder capability.
> Patches 5 set capture queue bytesused.
> Patches 6 adjust GStreamer.
> Patch 7~11 add to support MT21C compressed mode and fix v4l2-compliance fail.
> patch 12 record capture queue format type.
> Patch 13~14 extract h264 driver and add mt8192 frame based driver for h264 decoder.
> Patch 15~16 add vp8 and vp9 stateless decoder drivers.
> Patch 17 prevent kernel crash when rmmod mtk-vcodec-dec.ko

Hi Yunfei,

With this series, and the new scp.img for mt8192 [1] (still waiting to get
merged), I was able to get the following fluster scores on
mt8192-asurada-spherion:

VP8: 59/61
VP9: 249/303
H.264: 92/135

So for the whole series:

Tested-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Thanks,
Nícolas

[1] https://lore.kernel.org/all/2537b84fbba82a77ee0a517b12bdcdd5e6ac1503.camel@mediatek.com/