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Date:   Thu, 14 Oct 2021 16:43:17 +0800
From:   moudy ho <moudy.ho@...iatek.com>
To:     Hans Verkuil <hverkuil-cisco@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>
CC:     Maoguang Meng <maoguang.meng@...iatek.com>,
        daoyuan huang <daoyuan.huang@...iatek.com>,
        Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
        "Geert Uytterhoeven" <geert+renesas@...der.be>,
        Rob Landley <rob@...dley.net>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        <linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <tfiga@...omium.org>,
        <drinkcat@...omium.org>, <acourbot@...omium.org>,
        <pihsun@...omium.org>, <menghui.lin@...iatek.com>,
        <sj.huang@...iatek.com>, <ben.lok@...iatek.com>,
        <randy.wu@...iatek.com>, <srv_heupstream@...iatek.com>,
        <hsinyi@...gle.com>
Subject: Re: [PATCH v7 0/5] media: mediatek: support mdp3 on mt8183 platform

Hi Hans,

Thank you for your kind guidance, it is really helpful for us to
comprehend V4L2 framework.
After modifying the settings you mentioned, the V4L2-Compliance test
results all passed and listed below.
All these changes will be integrated into the next version.

localhost ~ # v4l2-compliance -d 11
v4l2-compliance SHA: not available
, 32 bits, 32-bit time_t

Compliance test for mtk-mdp3 device /dev/video11:

Driver Info:
        Driver name      : mtk-mdp3
        Card type        : 14001000.mdp3_rdma0
        Bus info         : platform:mtk-mdp3
        Driver version   : 5.10.66
        Capabilities     : 0x84204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps      : 0x04204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format

Required ioctls:
        test VIDIOC_QUERYCAP: OK

Allow for multiple opens:
        test second /dev/video11 open: OK
        test VIDIOC_QUERYCAP: OK
        test VIDIOC_G/S_PRIORITY: OK
        test for unlimited opens: OK

        test invalid ioctls: OK
Debug ioctls:
        test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
        test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
        test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
        test VIDIOC_ENUMAUDIO: OK (Not Supported)
        test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDIO: OK (Not Supported)
        Inputs: 0 Audio Inputs: 0 Tuners: 0

Output ioctls:
        test VIDIOC_G/S_MODULATOR: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_ENUMAUDOUT: OK (Not Supported)
        test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDOUT: OK (Not Supported)
        Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
        test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
        test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
        test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
        test VIDIOC_G/S_EDID: OK (Not Supported)

Control ioctls:
        test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
        test VIDIOC_QUERYCTRL: OK
        test VIDIOC_G/S_CTRL: OK
        test VIDIOC_G/S/TRY_EXT_CTRLS: OK
        test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
        test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
        Standard Controls: 4 Private Controls: 0

Format ioctls:
        test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
        test VIDIOC_G/S_PARM: OK (Not Supported)
        test VIDIOC_G_FBUF: OK (Not Supported)
        test VIDIOC_G_FMT: OK
        test VIDIOC_TRY_FMT: OK
        test VIDIOC_S_FMT: OK
        test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
        test Cropping: OK
        test Composing: OK
        test Scaling: OK

Codec ioctls:
        test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
        test VIDIOC_G_ENC_INDEX: OK (Not Supported)
        test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

Buffer ioctls:
        test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
        test VIDIOC_EXPBUF: OK
        test Requests: OK (Not Supported)

Total for mtk-mdp3 device /dev/video11: 45, Succeeded: 45, Failed: 0,
Warnings: 0

localhost ~ # v4l2-compliance -d 11 -s 1
v4l2-compliance SHA: not available
, 32 bits, 32-bit time_t

Compliance test for mtk-mdp3 device /dev/video11:

Driver Info:
        Driver name      : mtk-mdp3
        Card type        : 14001000.mdp3_rdma0
        Bus info         : platform:mtk-mdp3
        Driver version   : 5.10.66
        Capabilities     : 0x84204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format
                Device Capabilities
        Device Caps      : 0x04204000
                Video Memory-to-Memory Multiplanar
                Streaming
                Extended Pix Format

Required ioctls:
        test VIDIOC_QUERYCAP: OK

Allow for multiple opens:
        test second /dev/video11 open: OK
        test VIDIOC_QUERYCAP: OK
        test VIDIOC_G/S_PRIORITY: OK
        test for unlimited opens: OK

        test invalid ioctls: OK
Debug ioctls:
        test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
        test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
        test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
        test VIDIOC_ENUMAUDIO: OK (Not Supported)
        test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDIO: OK (Not Supported)
        Inputs: 0 Audio Inputs: 0 Tuners: 0

Output ioctls:
        test VIDIOC_G/S_MODULATOR: OK (Not Supported)
        test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
        test VIDIOC_ENUMAUDOUT: OK (Not Supported)
        test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
        test VIDIOC_G/S_AUDOUT: OK (Not Supported)
        Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
        test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
        test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
        test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
        test VIDIOC_G/S_EDID: OK (Not Supported)

Control ioctls:
        test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
        test VIDIOC_QUERYCTRL: OK
        test VIDIOC_G/S_CTRL: OK
        test VIDIOC_G/S/TRY_EXT_CTRLS: OK
        test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
        test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
        Standard Controls: 4 Private Controls: 0

Format ioctls:
        test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
        test VIDIOC_G/S_PARM: OK (Not Supported)
        test VIDIOC_G_FBUF: OK (Not Supported)
        test VIDIOC_G_FMT: OK
        test VIDIOC_TRY_FMT: OK
        test VIDIOC_S_FMT: OK
        test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
        test Cropping: OK
        test Composing: OK
        test Scaling: OK

Codec ioctls:
        test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
        test VIDIOC_G_ENC_INDEX: OK (Not Supported)
        test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

Buffer ioctls:
        test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
        test VIDIOC_EXPBUF: OK
        test Requests: OK (Not Supported)

Test input 0:

Streaming ioctls:
        test read/write: OK (Not Supported)
        test blocking wait: OK
        Video Capture Multiplanar: Captured 1 buffers
        test MMAP (no poll): OK
        Video Capture Multiplanar: Captured 1 buffers
        test MMAP (select): OK
        Video Capture Multiplanar: Captured 1 buffers
        test MMAP (epoll): OK
        test USERPTR (no poll): OK (Not Supported)
        test USERPTR (select): OK (Not Supported)
        test DMABUF: Cannot test, specify --expbuf-device

Total for mtk-mdp3 device /dev/video11: 52, Succeeded: 52, Failed: 0,
Warnings: 0

Thanks & Regards,
Moudy Ho

On Fri, 2021-09-03 at 12:01 +0200, Hans Verkuil wrote:
> Hi Moudy,
> 
> Can you provide the 'v4l2-compliance -s' output?
> 
> Make sure to compile v4l2-compliance from the latest code base:
> 
https://urldefense.com/v3/__https://git.linuxtv.org/v4l-utils.git/__;!!CTRNKA9wMg0ARbw!2QmkFhMoYBCR4MC5d_l8b7zvdEdwkfd6826nOY6WAHQChU4rMl8P9UtO6Z8ZrcPD$
>  
> 
> Compiling on x86_64 (so using COMPILE_TEST) fails:
> 
>   LD      .tmp_vmlinux.kallsyms1
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-core.o: in function
> `mdp_probe':
> mtk-mdp3-core.c:(.text+0x415): undefined reference to
> `mtk_mutex_mdp_get'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.o: in function
> `config_camin_subfrm':
> mtk-mdp3-comp.c:(.text+0x9b): undefined reference to
> `mtk_mmsys_mdp_camin_ctrl'
> ld: mtk-mdp3-comp.c:(.text+0xbc): undefined reference to
> `mtk_mmsys_mdp_camin_ctrl'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.o: in function
> `mdp_component_deinit':
> mtk-mdp3-comp.c:(.text+0x2707): undefined reference to
> `mtk_mutex_put'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.o: in function
> `init_isp.cold':
> mtk-mdp3-comp.c:(.text.unlikely+0x4f): undefined reference to
> `mtk_mmsys_mdp_isp_ctrl'
> ld: mtk-mdp3-comp.c:(.text.unlikely+0x7a): undefined reference to
> `mtk_mmsys_mdp_isp_ctrl'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_auto_release_work':
> mtk-mdp3-cmdq.c:(.text+0x13): undefined reference to
> `mtk_mutex_unprepare'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_path_subfrm_require':
> mtk-mdp3-cmdq.c:(.text+0x45e): undefined reference to
> `mtk_mutex_add_mdp_mod'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_path_subfrm_run.isra.0':
> mtk-mdp3-cmdq.c:(.text+0x78b): undefined reference to
> `mtk_mutex_enable_by_cmdq'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_path_config_subfrm':
> mtk-mdp3-cmdq.c:(.text+0xa0d): undefined reference to
> `mtk_mmsys_mdp_connect'
> ld: mtk-mdp3-cmdq.c:(.text+0xd08): undefined reference to
> `mtk_mmsys_mdp_disconnect'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_cmdq_send':
> (.text+0x1358): undefined reference to `mtk_mutex_prepare'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_handle_cmdq_callback.cold':
> mtk-mdp3-cmdq.c:(.text.unlikely+0x34): undefined reference to
> `mtk_mutex_unprepare'
> ld: drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.o: in function
> `mdp_cmdq_send.cold':
> mtk-mdp3-cmdq.c:(.text.unlikely+0xe3): undefined reference to
> `mtk_mutex_unprepare'
> make: *** [Makefile:1177: vmlinux] Error 1
> 
> I also get compile warnings:
> 
> drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c: In function
> ‘mdp_sub_comps_create’:
> drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c:1151:29: warning:
> implicit conversion from ‘enum mtk_mdp_comp_id’ to ‘enum
> mdp_comp_type’ [-Wenum-conversion]
>  1151 |   enum mdp_comp_type type = MDP_COMP_NONE;
>       |                             ^~~~~~~~~~~~~
> drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c: In function
> ‘mdp_component_init’:
> drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c:1217:6: warning:
> unused variable ‘i’ [-Wunused-variable]
>  1217 |  int i, ret;
>       |      ^
> drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c: In function
> ‘mdp_cmdq_send’:
> drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c:489:1: warning: the
> frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-
> than=]
>   489 | }
>       | ^
> 
> Regards,
> 
> 	Hans
> 
> On 24/08/2021 12:00, Moudy Ho wrote:
> > Changes since v6:
> > - Refactor GCE event to corresponding node.
> > - Fix dt_binding_check fail.
> > - Fix compilation errors.
> > 
> > Changes since v5:
> > - Rebase on v5.14-rc6.
> > - Move MMSYS/Mutex settings to corresponding driver.
> > - Revise the software license description and copyright.
> > - Remove unnecessary enum. or definitions.
> > - Optimize platform/chip definition conditions.
> > - Use general printing functions instead of MDP3 private ones.
> > - Fix compile warning.
> > 
> > Changes since v4:
> > - Rebase on v5.13-rc1.
> > - Remove the CMDQ flush flow to match the CMDQ API change.
> > - Integrate four of MDP's direct-link subcomponents into MDP
> > controller node
> >   from syscon node to avoid illegal clock usage.
> > - Rewrite dt-binding in a JSON compatible subset of YAML
> > - Fix a bit of macro argument precedence.
> > 
> > Changes since v3:
> > - Rebase on v5.9-rc1.
> > - modify code for review comment from Rob Herring, cancel multiple
> > nodes using
> >   same register base situation.
> > - control IOMMU port through pm runtime get/put to DMA components'
> > device.
> > - SCP(VPU) driver revision.
> > - stop queuing jobs(remove flush_workqueue()) after
> > mdp_m2m_release().
> > - add computation of plane address with data_offset.
> > - fix scale ratio check issue.
> > - add default v4l2_format setting.
> > 
> > Changes since v2:
> > - modify code for review comment from Tomasz Figa & Alexandre
> > Courbot
> > - review comment from Rob Herring will offer code revision in v4,
> > due to
> >   it's related to device node modification, will need to modify
> > code
> >   architecture
> > 
> > Changes since v1:
> > - modify code for CMDQ v3 API support
> > - EC ipi cmd migration
> > - fix compliance test fail item (m2m cmd with -f) due to there is
> > two problem in runing all format(-f) cmd:
> > 1. out of memory before test complete
> >         Due to capture buffer mmap (refcount + 1) after reqbuf but
> > seems
> >         no corresponding munmap called before device close.
> >         There are total 12XX items(formats) in format test and each
> > format
> >         alloc 8 capture/output buffers.
> > 2. unceasingly captureBufs() (randomly)
> >         Seems the break statement didn't catch the count == 0
> > situation:
> >         In v4l2-test-buffers.cpp, function: captureBufs()
> >                         ...
> >                         count--;
> >                         if (!node->is_m2m && !count)
> >                                 break;
> >         Log is as attachment
> > 
> > I will paste the test result with problem part in another e-mail
> > 
> > Hi,
> > 
> > This is the first version of RFC patch for Media Data Path 3
> > (MDP3),
> > MDP3 is used for scaling and color format conversion.
> > support using GCE to write register in critical time limitation.
> > support V4L2 m2m device control.
> > 
> > Moudy Ho (5):
> >   soc: mediatek: mutex: add support for MDP
> >   soc: mediatek: mmsys: Add support for MDP
> >   dt-binding: mt8183: Add Mediatek MDP3 dt-bindings
> >   dts: arm64: mt8183: Add Mediatek MDP3 nodes
> >   media: platform: mtk-mdp3: Add Mediatek MDP3 driver
> > 
> >  .../bindings/media/mediatek,mdp3-ccorr.yaml   |   57 +
> >  .../bindings/media/mediatek,mdp3-rdma.yaml    |  207 +++
> >  .../bindings/media/mediatek,mdp3-rsz.yaml     |   65 +
> >  .../bindings/media/mediatek,mdp3-wdma.yaml    |   71 +
> >  .../bindings/media/mediatek,mdp3-wrot.yaml    |   71 +
> >  arch/arm64/boot/dts/mediatek/mt8183.dtsi      |  110 ++
> >  drivers/media/platform/Kconfig                |   19 +
> >  drivers/media/platform/Makefile               |    2 +
> >  drivers/media/platform/mtk-mdp3/Makefile      |    6 +
> >  .../media/platform/mtk-mdp3/mdp_reg_ccorr.h   |   19 +
> >  drivers/media/platform/mtk-mdp3/mdp_reg_isp.h |   27 +
> >  .../media/platform/mtk-mdp3/mdp_reg_rdma.h    |   65 +
> >  drivers/media/platform/mtk-mdp3/mdp_reg_rsz.h |   39 +
> >  .../media/platform/mtk-mdp3/mdp_reg_wdma.h    |   47 +
> >  .../media/platform/mtk-mdp3/mdp_reg_wrot.h    |   55 +
> >  drivers/media/platform/mtk-mdp3/mtk-img-ipi.h |  280 ++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-cmdq.c   |  507 +++++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-cmdq.h   |   46 +
> >  .../media/platform/mtk-mdp3/mtk-mdp3-comp.c   | 1307
> > +++++++++++++++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-comp.h   |  147 ++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-core.c   |  329 +++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-core.h   |   75 +
> >  .../media/platform/mtk-mdp3/mtk-mdp3-m2m.c    |  801 ++++++++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-m2m.h    |   41 +
> >  .../media/platform/mtk-mdp3/mtk-mdp3-regs.c   |  746 ++++++++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-regs.h   |  372 +++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-vpu.c    |  312 ++++
> >  .../media/platform/mtk-mdp3/mtk-mdp3-vpu.h    |   78 +
> >  drivers/soc/mediatek/mt8183-mmsys.h           |  235 +++
> >  drivers/soc/mediatek/mtk-mmsys.c              |  164 +++
> >  drivers/soc/mediatek/mtk-mmsys.h              |    9 +-
> >  drivers/soc/mediatek/mtk-mutex.c              |  106 +-
> >  include/linux/soc/mediatek/mtk-mmsys.h        |   81 +
> >  include/linux/soc/mediatek/mtk-mutex.h        |    8 +
> >  34 files changed, 6495 insertions(+), 9 deletions(-)
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,mdp3-ccorr.yaml
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,mdp3-rdma.yaml
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,mdp3-rsz.yaml
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,mdp3-wdma.yaml
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,mdp3-wrot.yaml
> >  create mode 100644 drivers/media/platform/mtk-mdp3/Makefile
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mdp_reg_ccorr.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mdp_reg_isp.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mdp_reg_rdma.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mdp_reg_rsz.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mdp_reg_wdma.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mdp_reg_wrot.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-img-ipi.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.c
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-cmdq.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.c
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-comp.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-core.c
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-core.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-m2m.c
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-m2m.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-regs.c
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-regs.h
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-vpu.c
> >  create mode 100644 drivers/media/platform/mtk-mdp3/mtk-mdp3-vpu.h
> > 
> 
> 

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