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Date:   Thu, 22 Jul 2021 19:44:08 +0800
From:   mtk12024 <yunfei.dong@...iatek.com>
To:     Dafna Hirschfeld <dafna.hirschfeld@...labora.com>
CC:     Alexandre Courbot <acourbot@...omium.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tzung-Bi Shih <tzungbi@...omium.org>,
        "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>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        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>,
        Collabora Kernel ML <kernel@...labora.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>
Subject: Re: [PATCH v2, 00/14] Using component framework to support multi
 hardware decode

On Mon, 2021-07-19 at 09:00 +0200, Dafna Hirschfeld wrote:
> 
> On 17.07.21 10:12, Yunfei Dong wrote:
> > This series adds support for multi hardware decode into mtk-vcodec, by first
> > adding component framework to manage each hardware information: interrupt,
> > clock, register bases and power. Secondly add core thread to deal with core
> > hardware message, at the same time, add msg queue for different hardware
> > share messages. Lastly, the architecture of different specs are not the same,
> > using specs type to separate them.
> > 
> > This series has been tested with both MT8183 and MT8173. Decoding was working
> > for both chips.
> 
> Hi, I am currently working on stabilizing the codec drivers on mt8173 chromeos
>   device (elm). It would be very helpful if you provide information on how you
> tested the code.
> Did you test it on chromeos userspace?
> Did you use the test-tast framework?
> What tests did you run?
> 
> Thanks,
> Dafna
> 
Hi Dafna,

Adding component framework is just used for mt8192 and mt8195.
MT8173 and MT8183 still use the the older architecture. In another way,
mt8192 and mt8195 is stateless decode, mt8173 is stateful decode, it is
different. I just porting these patches to mt8173 branch, and just need
to do several simple test.

Thanks,
Yunfei Dong
> > 
> > Patches 1,2 rewrite get register bases and power on/off interface.
> > 
> > Patch 3-5 add component framework to support multi hardware.
> > 
> > Patches 6-14 add interfaces to support core hardware.
> > ----
> > This patch dependents on "media: mtk-vcodec: support for MT8183 decoder"[1].
> > 
> > Multi hardware decode is based on stateless decoder, MT8183 is the first
> > time to add stateless decoder. Otherwise it will cause conflict.
> > Please also accept this patch together with [1].
> > 
> > [1]https://lore.kernel.org/patchwork/project/lkml/list/?series=507084
> > ----
> > 
> > Changes compared with v1:
> > - Fix many comments for patch 3/14
> > - Remove unnecessary code for patch 4/14
> > - Using enum mtk_vdec_hw_count instead of magic numbers for patch 6/14
> > - Reconstructed get/put lat buffer for lat and core hardware for patch 7/14
> > - Using yaml format to instead of txt file for patch 12/14
> > 
> > Yunfei Dong (14):
> >    media: mtk-vcodec: Get numbers of register bases from DT
> >    media: mtk-vcodec: Refactor vcodec pm interface
> >    media: mtk-vcodec: Use component framework to manage each hardware
> >      information
> >    dt-bindings: media: mtk-vcodec: Separate video encoder and decoder
> >      dt-bindings
> >    media: mtk-vcodec: Use pure single core for MT8183
> >    media: mtk-vcodec: Add irq interface for core hardware
> >    media: mtk-vcodec: Add msg queue feature for lat and core architecture
> >    media: mtk-vcodec: Generalize power and clock on/off interfaces
> >    media: mtk-vcodec: Add new interface to lock different hardware
> >    media: mtk-vcodec: Add core thread
> >    media: mtk-vcodec: Support 34bits dma address for vdec
> >    dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
> >    media: mtk-vcodec: Add core dec and dec end ipi msg
> >    media: mtk-vcodec: Use codec type to separate different hardware
> > 
> >   .../media/mediatek-vcodec-comp-decoder.yaml   | 150 +++++++++
> >   ...vcodec.txt => mediatek-vcodec-decoder.txt} |  62 +---
> >   .../media/mediatek-vcodec-encoder.txt         |  73 +++++
> >   drivers/media/platform/mtk-vcodec/Makefile    |   2 +
> >   .../platform/mtk-vcodec/mtk_vcodec_dec.c      |   4 +-
> >   .../platform/mtk-vcodec/mtk_vcodec_dec.h      |   1 +
> >   .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 297 +++++++++++++++---
> >   .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   | 194 ++++++++++++
> >   .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h   |  50 +++
> >   .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c   |  98 ++++--
> >   .../platform/mtk-vcodec/mtk_vcodec_dec_pm.h   |  13 +-
> >   .../mtk-vcodec/mtk_vcodec_dec_stateful.c      |   1 +
> >   .../mtk-vcodec/mtk_vcodec_dec_stateless.c     |   1 +
> >   .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  72 ++++-
> >   .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c   |   1 -
> >   .../platform/mtk-vcodec/mtk_vcodec_intr.c     |  32 +-
> >   .../platform/mtk-vcodec/mtk_vcodec_intr.h     |   4 +-
> >   .../platform/mtk-vcodec/mtk_vcodec_util.c     |  87 ++++-
> >   .../platform/mtk-vcodec/mtk_vcodec_util.h     |   8 +-
> >   .../media/platform/mtk-vcodec/vdec_drv_if.c   |  21 +-
> >   .../media/platform/mtk-vcodec/vdec_ipi_msg.h  |  16 +-
> >   .../platform/mtk-vcodec/vdec_msg_queue.c      | 286 +++++++++++++++++
> >   .../platform/mtk-vcodec/vdec_msg_queue.h      | 143 +++++++++
> >   .../media/platform/mtk-vcodec/vdec_vpu_if.c   |  46 ++-
> >   .../media/platform/mtk-vcodec/vdec_vpu_if.h   |  22 ++
> >   25 files changed, 1516 insertions(+), 168 deletions(-)
> >   create mode 100644 Documentation/devicetree/bindings/media/mediatek-vcodec-comp-decoder.yaml
> >   rename Documentation/devicetree/bindings/media/{mediatek-vcodec.txt => mediatek-vcodec-decoder.txt} (56%)
> >   create mode 100644 Documentation/devicetree/bindings/media/mediatek-vcodec-encoder.txt
> >   create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
> >   create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
> >   create mode 100644 drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
> >   create mode 100644 drivers/media/platform/mtk-vcodec/vdec_msg_queue.h
> > 

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