linux-kernel - Re: [PATCH v7,0/2] media: mediatek: vcodec: add hevc stateless decoder driver in MT8195

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Message-ID: <6a9db92e-a52e-c427-8a8b-fbec4715c0a9@xs4all.nl>
Date:   Wed, 24 May 2023 13:01:21 +0200
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Yunfei Dong (董云飞) 
        <Yunfei.Dong@...iatek.com>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "frkoenig@...omium.org" <frkoenig@...omium.org>,
        "stevecho@...omium.org" <stevecho@...omium.org>,
        "wenst@...omium.org" <wenst@...omium.org>,
        "nhebert@...omium.org" <nhebert@...omium.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "nicolas.dufresne@...labora.com" <nicolas.dufresne@...labora.com>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        "benjamin.gaignard@...labora.com" <benjamin.gaignard@...labora.com>,
        "hsinyi@...omium.org" <hsinyi@...omium.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "nfraprado@...labora.com" <nfraprado@...labora.com>
Subject: Re: [PATCH v7,0/2] media: mediatek: vcodec: add hevc stateless
 decoder driver in MT8195

Hi Yunfei,

On 24/05/2023 12:16, Yunfei Dong (董云飞) wrote:
> Hi Hans,
> 
> Thanks for your suggestion.
> 
> I don't understand your means very well, need to confirm with you
> again.
> 
> hevc(v7) --- > media: mediatek: vcodec: support stateless hevc decoder
> plt(v3)  ----> media: mediatek: vcodec: Fix decoder under flow and plt
> test fails randomly
> 
> Whether hevc and plt patches merged together?
> 
> Whether you mean I need to post v8 for hevc patch based on plt patch as
> below order?
> hevc(v7)
> plt(v3)
> media stage HEAD
> 
> I cherry pick all patches, won't get conflict.
> 
> Or I need to post hevc patch based on media stage HEAD?
> hevc(v7)
> media stage HEAD

When testing I found a problem with the plt v3 series, so I decided to
drop that and take this hevc v7 series instead.

So you can ignore this email.

I'll make a separate email describing the problem with the plt series.

Regards,

	Hans

> 
> Best Regards,
> Yunfei Dong
> 
> On Wed, 2023-05-24 at 11:27 +0200, Hans Verkuil wrote:
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>>
>>
>> Hi Yunfei,
>>
>> On 24/05/2023 10:07, Yunfei Dong wrote:
>>> Add hevc stateless decoder driver to support hardware decode in
>>> MT8195, and the driver
>>> need num_delta_pocs_of_ref_rps_idx value to parse slice header
>>> short_term_ref_pic_set().
>>>
>>> patch 1 add num_delta_pocs_of_ref_rps_idx field.
>>> patch 2 add hevc stateless decoder driver.
>>
>> This series clashes with this older series from you:
>>
>>
> https://urldefense.com/v3/__https://patchwork.linuxtv.org/project/linux-media/cover/20230424060130.18395-1-yunfei.dong@mediatek.com/__;!!CTRNKA9wMg0ARbw!ndi-6i9h2KkGhm1Sgg4aAXrI3iYVMKtyxR2bjt-HCujIL5d9-OfSzfJnlvwmVuIRCwgdZtlP4z0zNU1fvCD9WPQvpeyKDyUK$
>>
>> Can you post a v8 that sits on top of that older series?
>>
>> Regards,
>>
>>         Hans
>>
>>> ---
>>> Changed from v6:
>>> - fix AngeloGioacchino's suggestion.
>>>
>>> Changed from v5:
>>> - checkpatch/kernel-doc pass/build pass.
>>> - fix warning: struct vdec_av1_slice_fb -> struct
>>> vdec_hevc_slice_fb.
>>> - fix warning: remove unused comment for param "trans_start" and
>>> "trans_end"
>>>
>>> Changed from v4:
>>> - fix some comments according to Nathan's suggestion.
>>>
>>> Changed from v3:
>>> - add the dependency patch to this patch series for patch 1.
>>>
>>> Changed from v2:
>>> - fix one build warning.
>>> - add the dependency patch link.
>>>
>>> Changed from v1:
>>> - fix build error when build 32bit system.
>>> - hevc fluster test result: 132/147 (not support: 10bit => 11 and
>>> resolution => 4).
>>> ---
>>> Benjamin Gaignard (1):
>>>   media: uapi: HEVC: Add num_delta_pocs_of_ref_rps_idx field
>>>
>>> Yunfei Dong (1):
>>>   media: mediatek: vcodec: support stateless hevc decoder
>>>
>>>  .../media/v4l/ext-ctrls-codec-stateless.rst   |    7 +
>>>  .../media/platform/mediatek/vcodec/Makefile   |    1 +
>>>  .../vcodec/mtk_vcodec_dec_stateless.c         |   59 +-
>>>  .../platform/mediatek/vcodec/mtk_vcodec_drv.h |    1 +
>>>  .../vcodec/vdec/vdec_hevc_req_multi_if.c      | 1097
>>> +++++++++++++++++
>>>  .../platform/mediatek/vcodec/vdec_drv_if.c    |    4 +
>>>  .../platform/mediatek/vcodec/vdec_drv_if.h    |    1 +
>>>  include/uapi/linux/v4l2-controls.h            |    6 +-
>>>  8 files changed, 1174 insertions(+), 2 deletions(-)
>>>  create mode 100644
>>> drivers/media/platform/mediatek/vcodec/vdec/vdec_hevc_req_multi_if.
>>> c
>>>
>>
>>