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Message-ID: <66908d2b-d553-d982-3609-e0c6d0f7960c@xs4all.nl>
Date: Wed, 21 Jul 2021 09:33:40 +0200
From: Hans Verkuil <hverkuil-cisco@...all.nl>
To: Ming Qian <ming.qian@....com>, mchehab@...nel.org,
shawnguo@...nel.org, robh+dt@...nel.org, s.hauer@...gutronix.de
Cc: kernel@...gutronix.de, festevam@...il.com, linux-imx@....com,
aisheng.dong@....com, linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 00/13] imx8q video decoder/encoder driver
Hi Ming Qian,
Thank you for working on this.
Some high-level comments:
First of all, it looks like this series is based on a nxp-kernel. I noticed
references to e.g. V4L2_COLORSPACE_GENERIC_FILM which doesn't exist in the
mainline kernel. The patch series really should be based on the mainline
kernel, or (preferred) the linux-media kernel (https://git.linuxtv.org/media_tree.git/,
master branch).
On 20/07/2021 03:43, Ming Qian wrote:
> Hi all,
>
> This patch series adds support for
> the imx8q video encoder and decoder
> via the VPU block present in imx8q platforms.
> Currently, support for IMX8QXP and IMX8QM is included.
>
> It features decoding for the following formats:
> - H.264
> - HEVC
> - MPEG4
> - MPEG2
> - MJPEG
> - VC1
> - VP8
> - AVS
>
> It features encoding for the following formats:
> - H.264
>
> The driver creates a separate device node for
> the encoder and decoder.
>
> Changelog:
>
> v4:
> - redefine the memory-region in devicetree bindings documentation
> - use v4l2's mechanism to implement synchronize queuing ioctl
> - remove the unnecessary mutex ioctl_sync
> - don't notify source change event if the parameters are same as previously established
> - add flag V4L2_FMT_FLAG_DYN_RESOLUTION to decoder's capture format
>
> v3:
> - don't make vpu device node a simple-bus
> - trigger probing vpu core in the driver
> - remove unnecessary vpu core index property
>
> v2:
> - fix dt bindings build error
> - split driver patch into several parts to avoid exceeding bytes limit
>
> Compliance
> ==========
> # v4l2-compliance -d /dev/video0
> v4l2-compliance SHA: not available
> , 64 bits, 64-bit time_t
Always compile v4l2-compliance from the git repo (https://git.linuxtv.org/v4l-utils.git/).
Otherwise I cannot tell whether it is a recent version or if it is old. Since there is no
SHA I'm going with old.
>
> Compliance test for vpu B0 device /dev/video0:
>
> Driver Info:
> Driver name : vpu B0
> Card type : imx vpu decoder
> Bus info : platform: imx8q-vpu
> Driver version : 5.10.35
> 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
Hmm, v4l2-compliance should have detected a stateful decoder here.
>
> Required ioctls:
> test VIDIOC_QUERYCAP: OK
>
> Allow for multiple opens:
> test second /dev/video0 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: 3 Private Controls: 2
>
> 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
>
> Buffer ioctls:
> test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
> test VIDIOC_EXPBUF: OK
> test Requests: OK (Not Supported)
>
> Total for vpu b0 device /dev/video0: 45, Succeeded: 45, Failed: 0, Warnings: 0
>
> # v4l2-compliance -d /dev/video1
> v4l2-compliance SHA: not available
> , 64 bits, 64-bit time_t
>
> Compliance test for imx vpu encoder device /dev/video1:
>
> Driver Info:
> Driver name : imx vpu encoder
> Card type : imx vpu encoder
> Bus info : platform: imx8q-vpu
> Driver version : 5.10.35
> 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
> Detected Stateful Encoder
Here it properly detects a stateful encoder.
Regards,
Hans
>
> Required ioctls:
> test VIDIOC_QUERYCAP: OK
>
> Allow for multiple opens:
> test second /dev/video1 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: 20 Private Controls: 0
>
> Format ioctls:
> test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
> test VIDIOC_G/S_PARM: OK
> 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 (Not Supported)
> test Scaling: OK (Not Supported)
>
> Codec ioctls:
> test VIDIOC_(TRY_)ENCODER_CMD: OK
> 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 imx vpu encoder device /dev/video1: 45, Succeeded: 45, Failed: 0, Warnings: 0
>
> Ming Qian (13):
> dt-bindings: media: imx8q: add imx video codec bindings
> media: v4l: add some definition of v4l2
> colorspace/xfer_func/ycbcr_encoding
> media: imx: imx8q: add imx8q vpu device driver
> media: imx: imx8q: add vpu core driver
> media: imx: imx8q: implement vpu core communication based on mailbox
> media: imx: imx8q: add vpu v4l2 m2m support
> media: imx: imx8q: add v4l2 m2m vpu encoder stateful driver
> media: imx: imx8q: add v4l2 m2m vpu decoder stateful driver
> media: imx: imx8q: implement windsor encoder rpc interface
> media: imx: imx8q: implement malone decoder rpc interface
> ARM64: dts: freescale: imx8q: add imx vpu codec entries
> firmware: imx: scu-pd: imx8q: add vpu mu resources
> MAINTAINERS: add NXP IMX8Q VPU CODEC V4L2 driver entry
>
> .../bindings/media/nxp,imx8q-vpu.yaml | 178 ++
> MAINTAINERS | 10 +
> .../arm64/boot/dts/freescale/imx8-ss-vpu.dtsi | 72 +
> arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 17 +
> arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 26 +
> drivers/firmware/imx/scu-pd.c | 4 +
> drivers/media/platform/Kconfig | 2 +
> drivers/media/platform/Makefile | 2 +
> drivers/media/platform/imx/Kconfig | 19 +
> drivers/media/platform/imx/Makefile | 1 +
> drivers/media/platform/imx/vpu-8q/Makefile | 23 +
> drivers/media/platform/imx/vpu-8q/vdec.c | 1817 +++++++++++++++++
> drivers/media/platform/imx/vpu-8q/venc.c | 1395 +++++++++++++
> drivers/media/platform/imx/vpu-8q/vpu.h | 343 ++++
> drivers/media/platform/imx/vpu-8q/vpu_cmds.c | 446 ++++
> drivers/media/platform/imx/vpu-8q/vpu_cmds.h | 34 +
> drivers/media/platform/imx/vpu-8q/vpu_codec.h | 77 +
> drivers/media/platform/imx/vpu-8q/vpu_color.c | 201 ++
> drivers/media/platform/imx/vpu-8q/vpu_core.c | 919 +++++++++
> drivers/media/platform/imx/vpu-8q/vpu_core.h | 25 +
> drivers/media/platform/imx/vpu-8q/vpu_dbg.c | 505 +++++
> drivers/media/platform/imx/vpu-8q/vpu_defs.h | 194 ++
> .../media/platform/imx/vpu-8q/vpu_dev_imx8q.c | 82 +
> drivers/media/platform/imx/vpu-8q/vpu_drv.c | 225 ++
> .../media/platform/imx/vpu-8q/vpu_helpers.c | 405 ++++
> .../media/platform/imx/vpu-8q/vpu_helpers.h | 80 +
> drivers/media/platform/imx/vpu-8q/vpu_imx8q.c | 227 ++
> drivers/media/platform/imx/vpu-8q/vpu_imx8q.h | 125 ++
> drivers/media/platform/imx/vpu-8q/vpu_log.h | 53 +
> .../media/platform/imx/vpu-8q/vpu_malone.c | 1744 ++++++++++++++++
> .../media/platform/imx/vpu-8q/vpu_malone.h | 51 +
> drivers/media/platform/imx/vpu-8q/vpu_mbox.c | 135 ++
> drivers/media/platform/imx/vpu-8q/vpu_mbox.h | 25 +
> drivers/media/platform/imx/vpu-8q/vpu_msgs.c | 420 ++++
> drivers/media/platform/imx/vpu-8q/vpu_msgs.h | 23 +
> drivers/media/platform/imx/vpu-8q/vpu_rpc.c | 266 +++
> drivers/media/platform/imx/vpu-8q/vpu_rpc.h | 472 +++++
> drivers/media/platform/imx/vpu-8q/vpu_v4l2.c | 662 ++++++
> drivers/media/platform/imx/vpu-8q/vpu_v4l2.h | 53 +
> .../media/platform/imx/vpu-8q/vpu_windsor.c | 1253 ++++++++++++
> .../media/platform/imx/vpu-8q/vpu_windsor.h | 48 +
> include/linux/imx_vpu.h | 19 +
> include/uapi/linux/imx_vpu.h | 120 ++
> include/uapi/linux/videodev2.h | 30 +
> 44 files changed, 12828 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/nxp,imx8q-vpu.yaml
> create mode 100644 arch/arm64/boot/dts/freescale/imx8-ss-vpu.dtsi
> create mode 100644 drivers/media/platform/imx/Kconfig
> create mode 100644 drivers/media/platform/imx/Makefile
> create mode 100644 drivers/media/platform/imx/vpu-8q/Makefile
> create mode 100644 drivers/media/platform/imx/vpu-8q/vdec.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/venc.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_cmds.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_cmds.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_codec.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_color.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_core.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_core.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_dbg.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_defs.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_dev_imx8q.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_drv.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_helpers.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_helpers.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_imx8q.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_imx8q.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_log.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_malone.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_malone.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_mbox.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_mbox.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_msgs.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_msgs.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_rpc.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_rpc.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_v4l2.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_v4l2.h
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_windsor.c
> create mode 100644 drivers/media/platform/imx/vpu-8q/vpu_windsor.h
> create mode 100644 include/linux/imx_vpu.h
> create mode 100644 include/uapi/linux/imx_vpu.h
>
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