linux-kernel - Re: [PATCH 0/6] media: mediatek: vcodec: support h264 extend vsi

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAGXv+5HV5EPvhFb6oFkRBSw-EGaccxDGBrW0tVDoWQR0RAAeiQ@mail.gmail.com>
Date: Tue, 15 Oct 2024 15:54:40 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: Yunfei Dong <yunfei.dong@...iatek.com>
Cc: Nícolas F . R . A . Prado <nfraprado@...labora.com>, 
	Sebastian Fricke <sebastian.fricke@...labora.com>, 
	Nicolas Dufresne <nicolas.dufresne@...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>, 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 0/6] media: mediatek: vcodec: support h264 extend vsi

Hi,

On Mon, Oct 14, 2024 at 3:33 PM Yunfei Dong <yunfei.dong@...iatek.com> wrote:
>
> The working buffer address start and end are calculated in kernel
> side currently, can't calculate the address end if the driver only
> getting the address file handle, not the real physical address. Need
> to extend the vsi to calculate the address end in scp.
>
> Re-construct some interface and add config to support extend and non
> extend at the same time.
> ---
> This patch series depends on:
> [1] https://patchwork.kernel.org/project/linux-mediatek/cover/20241012064333.27269-1-yunfei.dong@mediatek.com
> ---
> Yunfei Dong (6):
>   media: mediatek: vcodec: extend h264 video share information
>   media: mediatek: vcodec: remove parse nal info in kernel
>   media: mediatek: vcodec: remove vsi operation in common interface
>   media: mediatek: vcodec: rename vsi to extend vsi
>   media: mediatek: vcodec: adding non extend struct
>   media: mediatek: vcodec: support extend h264 driver

This should be reworked so that "adding non extend struct" is not needed.
"rename vsi to extend vsi" and "extend h264 video share information"
could be combined so that you are "adding" the extended data structures,
not reworking the existing ones. Otherwise the whole thing breaks existing
systems until "adding non extend struct" is applied, making the series
non-bisectable.


ChenYu

>
>  .../vcodec/decoder/mtk_vcodec_dec_drv.h       |   2 +
>  .../decoder/vdec/vdec_h264_req_multi_if.c     | 516 +++++++++++++++++-
>  2 files changed, 493 insertions(+), 25 deletions(-)
>
> --
> 2.46.0
>
>