linux-kernel - [PATCH v3, 00/10] Enable two H264 encoder core on MT8195

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-next>] [day] [month] [year] [list]
Message-ID: <20220317082230.23622-1-irui.wang@mediatek.com>
Date:   Thu, 17 Mar 2022 16:22:20 +0800
From:   Irui Wang <irui.wang@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Alexandre Courbot <acourbot@...omium.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>,
        <angelogioacchino.delregno@...labora.com>,
        Yong Wu <yong.wu@...iatek.com>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>
CC:     Hsin-Yi Wang <hsinyi@...omium.org>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        Longfei Wang <longfei.wang@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Fritz Koenig <frkoenig@...omium.org>,
        Irui Wang <irui.wang@...iatek.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>,
        <linux-mediatek@...ts.infradead.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v3, 00/10] Enable two H264 encoder core on MT8195

MT8195 has two H264 encoder cores, they have their own power-domains,
clocks, interrupts, register base. The two H264 encoder cores can work
together to achieve higher performance, it's a core mode called
frame-racing, one core has 4K@...ps performance, two cores can achieve
4K@...ps.
The two encoder core encoding process looks like this:

    VENC Core0: frm#0....frm#2....frm#4....
    VENC Core1: ..frm#1....frm#3....frm#5....

This series of patches are used to enable the two H264 encoder cores,
encoding process will be changed:
As-Is: Synchronous
V4L2_VIDIOC_QBUF#0 --> device_run(triger encoder) --> wait encoder IRQ -->
encoding done with result --> job_finish
V4l2_VIDIOC_QBUF#1 --> device_run(triger encoder) --> wait encoder IRQ -->
encoding done with result --> job_finish
...

To-Be: Asynchronous
V4L2_VIDIOC_QBUF#0 --> device_run(triger encoder) --> job_finish
..V4l2_VIDIOC_QBUF#1 --> device_run(triger encoder) --> job_finish
(venc core0 may encode done here, done the encoding result to client)
V4L2_VIDIOC_QBUF#2 --> device_run(triger encoder) --> job_finish.

There is no "wait encoder IRQ" synchronous call during frame-racing mode
encoding process, it can full use the two encoder cores to achieve higher
performance.

---
This series patches dependent on:
media_stage tree:
[1]
https://git.linuxtv.org/media_stage.git/commit/?id=b3627647f9ea7473d10fb08a95fd7c4133a17ca4

mt8192 decoder:
[2] https://patchwork.kernel.org/project/linux-mediatek/list/?series=616991

patch3 new venc dt-bindings included files
[3] MM IOMMU binding:
https://patchwork.kernel.org/project/linux-mediatek/patch/20220217113453.13658-2-yong.wu@mediatek.com/

[4] MT8195 power domain:
https://patchwork.kernel.org/project/linux-mediatek/list/?series=580579

changes compared with v2:
- update venc core dt-bindings, add two new properties for current usage.
- parse venc multi_core mode from device tree.
- rebase to the newer linux media stage.

changes compared with v1:
- of_platform_populate was used in place of the component framework.
- new yaml file for venc cores.
- some modifications for patch v1's review comments.
---

Irui Wang (10):
  media: mtk-vcodec: Use core type to indicate h264 and vp8 enc
  media: mtk-vcodec: export encoder functions
  dt-bindings: media: mtk-vcodec: Adds encoder cores dt-bindings for
    mt8195
  media: mtk-vcodec: Enable venc dual core usage
  media: mtk-vcodec: mtk-vcodec: Rewrite venc power manage interface
  media: mtk-vcodec: Add venc power on/off interface
  media: mtk-vcodec: Rewrite venc clock interface
  media: mtk-vcodec: Add more extra processing for venc_multi_core mode
  media: mtk-vcodec: Add venc_multi_core mode encode process
  media: mtk-vcodec: Done encode result to client

 .../media/mediatek,vcodec-encoder-core.yaml   | 181 +++++++++++++++
 .../media/mediatek,vcodec-encoder.yaml        |   1 -
 drivers/media/platform/mtk-vcodec/Makefile    |   4 +-
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  36 ++-
 .../platform/mtk-vcodec/mtk_vcodec_enc.c      | 113 +++++++---
 .../platform/mtk-vcodec/mtk_vcodec_enc.h      |   7 +-
 .../platform/mtk-vcodec/mtk_vcodec_enc_core.c | 169 ++++++++++++++
 .../platform/mtk-vcodec/mtk_vcodec_enc_core.h |  36 +++
 .../platform/mtk-vcodec/mtk_vcodec_enc_drv.c  | 107 +++++----
 .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c   | 183 +++++++++++++--
 .../platform/mtk-vcodec/mtk_vcodec_enc_pm.h   |  11 +-
 .../platform/mtk-vcodec/mtk_vcodec_util.c     |  19 ++
 .../platform/mtk-vcodec/mtk_vcodec_util.h     |   5 +
 .../platform/mtk-vcodec/venc/venc_h264_if.c   | 212 +++++++++++++++---
 .../platform/mtk-vcodec/venc/venc_vp8_if.c    |   3 +-
 .../media/platform/mtk-vcodec/venc_drv_if.c   |  79 +++++--
 .../media/platform/mtk-vcodec/venc_drv_if.h   |   7 +
 .../media/platform/mtk-vcodec/venc_vpu_if.c   |  11 +-
 .../media/platform/mtk-vcodec/venc_vpu_if.h   |   3 +-
 19 files changed, 1026 insertions(+), 161 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-encoder-core.yaml
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.c
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_core.h

-- 
2.18.0