[v10,00/18] Qualcomm video decoder/encoder driver

Hello,

The changes since patchset v9 are the following:
 * patches from 1/18 to 9/18 are the same.
 * patches from 10/18 to 16/18 are fixes for warns/errors found by
   Mauro when building with its gcc7.
 * patch 17/18 adding support for minimum buffers for capture
   get control. This fixes an issue with gstreamer and it will
   be good to have it in the inital version of the venus driver.
 * patch 18/18 enable COMPILE_TEST Kconfig option for the driver,
   and this patch depends on the other one for qcom_scm driver.
   The submited patch for qcom_scm driver can be found at [1].

Mauro, I failed to build gcc7 on my own machine and fallback to
a pre-built version of the gcc-7 for may Ubuntu distro. The version
which I tried was: gcc version 7.1.0 (Ubuntu 7.1.0-5ubuntu2~16.04).
Unfortunately I cannot reproduce the warns/errors (except two
warnings) from your compiler (even that the version looks
the same 7.1.0). So I fixed the warns/errors as per your response
to v9, and hope that the errors will disappear.

[1] https://patchwork.kernel.org/patch/9775803/

Stanimir Varbanov (18):
  media: v4l2-mem2mem: extend m2m APIs for more accurate buffer
    management
  doc: DT: venus: binding document for Qualcomm video driver
  MAINTAINERS: Add Qualcomm Venus video accelerator driver
  media: venus: adding core part and helper functions
  media: venus: vdec: add video decoder files
  media: venus: venc: add video encoder files
  media: venus: hfi: add Host Firmware Interface (HFI)
  media: venus: hfi: add Venus HFI files
  media: venus: enable building of Venus video driver
  media: venus: hfi: fix mutex unlock
  media: venus: hfi_cmds: fix variable dereferenced before check
  media: venus: helpers: fix variable dereferenced before check
  media: venus: hfi_venus: fix variable dereferenced before check
  media: venus: hfi_msgs: fix set but not used variables
  media: venus: vdec: fix compile error in vdec_close
  media: venus: venc: fix compile error in venc_close
  media: venus: vdec: add support for min buffers for capture
  media: venus: enable building with COMPILE_TEST

 .../devicetree/bindings/media/qcom,venus.txt       |  107 ++
 MAINTAINERS                                        |    8 +
 drivers/media/platform/Kconfig                     |   13 +
 drivers/media/platform/Makefile                    |    2 +
 drivers/media/platform/qcom/venus/Makefile         |   11 +
 drivers/media/platform/qcom/venus/core.c           |  388 +++++
 drivers/media/platform/qcom/venus/core.h           |  323 ++++
 drivers/media/platform/qcom/venus/firmware.c       |  109 ++
 drivers/media/platform/qcom/venus/firmware.h       |   22 +
 drivers/media/platform/qcom/venus/helpers.c        |  725 +++++++++
 drivers/media/platform/qcom/venus/helpers.h        |   45 +
 drivers/media/platform/qcom/venus/hfi.c            |  522 +++++++
 drivers/media/platform/qcom/venus/hfi.h            |  175 +++
 drivers/media/platform/qcom/venus/hfi_cmds.c       | 1259 ++++++++++++++++
 drivers/media/platform/qcom/venus/hfi_cmds.h       |  304 ++++
 drivers/media/platform/qcom/venus/hfi_helper.h     | 1050 +++++++++++++
 drivers/media/platform/qcom/venus/hfi_msgs.c       | 1052 +++++++++++++
 drivers/media/platform/qcom/venus/hfi_msgs.h       |  283 ++++
 drivers/media/platform/qcom/venus/hfi_venus.c      | 1572 ++++++++++++++++++++
 drivers/media/platform/qcom/venus/hfi_venus.h      |   23 +
 drivers/media/platform/qcom/venus/hfi_venus_io.h   |  113 ++
 drivers/media/platform/qcom/venus/vdec.c           | 1162 +++++++++++++++
 drivers/media/platform/qcom/venus/vdec.h           |   23 +
 drivers/media/platform/qcom/venus/vdec_ctrls.c     |  158 ++
 drivers/media/platform/qcom/venus/venc.c           | 1283 ++++++++++++++++
 drivers/media/platform/qcom/venus/venc.h           |   23 +
 drivers/media/platform/qcom/venus/venc_ctrls.c     |  270 ++++
 drivers/media/v4l2-core/v4l2-mem2mem.c             |   37 +
 include/media/v4l2-mem2mem.h                       |   92 ++
 29 files changed, 11154 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/qcom,venus.txt
 create mode 100644 drivers/media/platform/qcom/venus/Makefile
 create mode 100644 drivers/media/platform/qcom/venus/core.c
 create mode 100644 drivers/media/platform/qcom/venus/core.h
 create mode 100644 drivers/media/platform/qcom/venus/firmware.c
 create mode 100644 drivers/media/platform/qcom/venus/firmware.h
 create mode 100644 drivers/media/platform/qcom/venus/helpers.c
 create mode 100644 drivers/media/platform/qcom/venus/helpers.h
 create mode 100644 drivers/media/platform/qcom/venus/hfi.c
 create mode 100644 drivers/media/platform/qcom/venus/hfi.h
 create mode 100644 drivers/media/platform/qcom/venus/hfi_cmds.c
 create mode 100644 drivers/media/platform/qcom/venus/hfi_cmds.h
 create mode 100644 drivers/media/platform/qcom/venus/hfi_helper.h
 create mode 100644 drivers/media/platform/qcom/venus/hfi_msgs.c
 create mode 100644 drivers/media/platform/qcom/venus/hfi_msgs.h
 create mode 100644 drivers/media/platform/qcom/venus/hfi_venus.c
 create mode 100644 drivers/media/platform/qcom/venus/hfi_venus.h
 create mode 100644 drivers/media/platform/qcom/venus/hfi_venus_io.h
 create mode 100644 drivers/media/platform/qcom/venus/vdec.c
 create mode 100644 drivers/media/platform/qcom/venus/vdec.h
 create mode 100644 drivers/media/platform/qcom/venus/vdec_ctrls.c
 create mode 100644 drivers/media/platform/qcom/venus/venc.c
 create mode 100644 drivers/media/platform/qcom/venus/venc.h
 create mode 100644 drivers/media/platform/qcom/venus/venc_ctrls.c

Here is the output of v4l2-compliance for decoder (as in this version
of the patchset only decoder has functional changes):
 
dragonboard-410c:~$ ./v4l2-compliance -d /dev/video0
v4l2-compliance SHA   : 8fc88615b49843acb82cd8316d0bc4ab8474cba2

Driver Info:
        Driver name   : qcom-venus
        Card type     : Qualcomm Venus video decoder
        Bus info      : platform:qcom-venus
        Driver version: 4.9.27
        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

Compliance test for device /dev/video0 (not using libv4l2):

Required ioctls:
        test VIDIOC_QUERYCAP: OK

Allow for multiple opens:
        test second video open: OK
        test VIDIOC_QUERYCAP: OK
        test VIDIOC_G/S_PRIORITY: OK
        test for unlimited opens: 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: 9 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 (Not Supported)
                test Composing: OK (Not Supported)
                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 input 0:


Total: 43, Succeeded: 43, Failed: 0, Warnings: 0

-- 
2.7.4