[GIT PULL for v4.20-rc1] new experimental media request API

From: Mauro Carvalho Chehab
Date: Tue Oct 30 2018 - 10:04:40 EST

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Hi Linus,

Please pull from:

git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media tags/media/v4.20-2

For a new media API: the request API

This API is needed to support device drivers that can dynamically
change their parameters for each new frame. The latest versions of
Google camera and codec HAL depends on such feature.

At this stage, it supports only stateless codecs.

It has been discussed for a long time (at least over the last 3-4
years), and we finally reached to something that seem to work.

This series contain both the API and core changes required to support it
and a new m2m decoder driver (cedrus).

As the current API is still experimental, the only real driver using it
(cedrus) was added at staging[1]. We intend to keep it there for a while,
in order to test the API. Only when we're sure that this API works
for other cases (like encoders), we'll move this driver out of staging
and set the API into a stone.

[1] We added support for the vivid virtual driver (used only for testing)
to it too, as it makes easier to test the API for the ones that don't have
the cedrus hardware.

Thanks!
Mauro

The following changes since commit d842a7cf938b6e0f8a1aa9f1aec0476c9a599310:

media: adv7842: enable reduced fps detection (2018-08-31 10:03:51 -0400)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media tags/media/v4.20-2

for you to fetch changes up to e4183d3256e3cd668e899d06af66da5aac3a51af:

media: dt-bindings: Document the Rockchip VPU bindings (2018-10-05 07:00:43 -0400)

----------------------------------------------------------------
media updates for v4.20-rc1

----------------------------------------------------------------
Alexandre Courbot (2):
media: Documentation: v4l: document request API
media: videodev2.h: add request_fd field to v4l2_ext_controls

Ezequiel Garcia (1):
media: dt-bindings: Document the Rockchip VPU bindings

Hans Verkuil (44):
media: uapi/linux/media.h: add request API
media: media-request: implement media requests
media: media-request: add media_request_get_by_fd
media: media-request: add media_request_object_find
media: v4l2-device.h: add v4l2_device_supports_requests() helper
media: v4l2-dev: lock req_queue_mutex
media: v4l2-ctrls: v4l2_ctrl_add_handler: add from_other_dev
media: v4l2-ctrls: prepare internal structs for request API
media: v4l2-ctrls: alloc memory for p_req
media: v4l2-ctrls: use ref in helper instead of ctrl
media: v4l2-ctrls: add core request support
media: v4l2-ctrls: support g/s_ext_ctrls for requests
media: v4l2-ctrls: add v4l2_ctrl_request_hdl_find/put/ctrl_find functions
media: videobuf2-v4l2: move __fill_v4l2_buffer() function
media: videobuf2-v4l2: replace if by switch in __fill_vb2_buffer()
media: vb2: store userspace data in vb2_v4l2_buffer
media: davinci_vpfe: remove bogus vb2->state check
media: vb2: drop VB2_BUF_STATE_PREPARED, use bool prepared/synced instead
media: videodev2.h: Add request_fd field to v4l2_buffer
media: vb2: add init_buffer buffer op
media: videobuf2-core: embed media_request_object
media: videobuf2-core: integrate with media requests
media: videobuf2-v4l2: integrate with media requests
media: videobuf2-core: add request helper functions
media: videobuf2-v4l2: add vb2_request_queue/validate helpers
media: videobuf2-core: add uses_requests/qbuf flags
media: videobuf2-v4l2: refuse qbuf if queue uses requests or vv.
media: v4l2-mem2mem: add vb2_m2m_request_queue
media: vim2m: use workqueue
media: vim2m: support requests
media: vivid: add mc
media: vivid: add request support
media: media-request: return -EINVAL for invalid request_fds
media: v4l2-ctrls: return -EACCES if request wasn't completed
media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF
media: videodev2.h: add new capabilities for buffer types
media: vb2: set reqbufs/create_bufs capabilities
media: media-request: add media_request_(un)lock_for_access
media: v4l2-ctrls: use media_request_(un)lock_for_access
media: v4l2-ctrls: improve media_request_(un)lock_for_update
media: media-request: EPERM -> EACCES/EBUSY
media: media-request: update documentation
media: v4l2-compat-ioctl32.c: add missing documentation for a field
media: v4l2-ctrls.c: initialize an error return code with zero

Paul Kocialkowski (5):
media: videobuf2-core: Rework and rename helper for request buffer count
media: v4l: Add definitions for MPEG-2 slice format and metadata
media: v4l: Add definition for the Sunxi tiled NV12 format
media: dt-bindings: media: Document bindings for the Cedrus VPU driver
media: platform: Add Cedrus VPU decoder driver

Sakari Ailus (1):
media: doc: Add media-request.h header to documentation build

Documentation/devicetree/bindings/media/cedrus.txt | 54 ++
.../devicetree/bindings/media/rockchip-vpu.txt | 29 +
Documentation/media/kapi/mc-core.rst | 2 +
.../media/uapi/mediactl/media-controller.rst | 1 +
Documentation/media/uapi/mediactl/media-funcs.rst | 6 +
.../uapi/mediactl/media-ioc-request-alloc.rst | 66 +++
.../uapi/mediactl/media-request-ioc-queue.rst | 78 +++
.../uapi/mediactl/media-request-ioc-reinit.rst | 51 ++
Documentation/media/uapi/mediactl/request-api.rst | 252 +++++++++
.../media/uapi/mediactl/request-func-close.rst | 49 ++
.../media/uapi/mediactl/request-func-ioctl.rst | 67 +++
.../media/uapi/mediactl/request-func-poll.rst | 77 +++
Documentation/media/uapi/v4l/buffer.rst | 29 +-
Documentation/media/uapi/v4l/extended-controls.rst | 176 ++++++
Documentation/media/uapi/v4l/pixfmt-compressed.rst | 16 +
Documentation/media/uapi/v4l/pixfmt-reserved.rst | 15 +-
.../media/uapi/v4l/vidioc-create-bufs.rst | 14 +-
.../media/uapi/v4l/vidioc-g-ext-ctrls.rst | 59 +-
Documentation/media/uapi/v4l/vidioc-qbuf.rst | 37 +-
Documentation/media/uapi/v4l/vidioc-queryctrl.rst | 14 +-
Documentation/media/uapi/v4l/vidioc-reqbufs.rst | 42 +-
Documentation/media/videodev2.h.rst.exceptions | 3 +
MAINTAINERS | 7 +
drivers/media/Makefile | 3 +-
drivers/media/common/videobuf2/videobuf2-core.c | 260 +++++++--
drivers/media/common/videobuf2/videobuf2-v4l2.c | 528 ++++++++++++------
drivers/media/dvb-core/dvb_vb2.c | 5 +-
drivers/media/dvb-frontends/rtl2832_sdr.c | 5 +-
drivers/media/media-device.c | 24 +-
drivers/media/media-request.c | 501 +++++++++++++++++
drivers/media/pci/bt8xx/bttv-driver.c | 2 +-
drivers/media/pci/cx23885/cx23885-417.c | 2 +-
drivers/media/pci/cx88/cx88-blackbird.c | 2 +-
drivers/media/pci/cx88/cx88-video.c | 2 +-
drivers/media/pci/saa7134/saa7134-empress.c | 4 +-
drivers/media/pci/saa7134/saa7134-video.c | 2 +-
drivers/media/platform/exynos4-is/fimc-capture.c | 2 +-
drivers/media/platform/omap3isp/ispvideo.c | 4 +-
drivers/media/platform/rcar-vin/rcar-core.c | 2 +-
drivers/media/platform/rcar_drif.c | 2 +-
drivers/media/platform/s3c-camif/camif-capture.c | 4 +-
drivers/media/platform/s5p-mfc/s5p_mfc_dec.c | 4 +-
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 4 +-
drivers/media/platform/soc_camera/soc_camera.c | 7 +-
drivers/media/platform/vim2m.c | 50 +-
drivers/media/platform/vivid/vivid-core.c | 74 +++
drivers/media/platform/vivid/vivid-core.h | 8 +
drivers/media/platform/vivid/vivid-ctrls.c | 46 +-
drivers/media/platform/vivid/vivid-kthread-cap.c | 12 +
drivers/media/platform/vivid/vivid-kthread-out.c | 12 +
drivers/media/platform/vivid/vivid-sdr-cap.c | 16 +
drivers/media/platform/vivid/vivid-vbi-cap.c | 10 +
drivers/media/platform/vivid/vivid-vbi-out.c | 10 +
drivers/media/platform/vivid/vivid-vid-cap.c | 10 +
drivers/media/platform/vivid/vivid-vid-out.c | 10 +
drivers/media/usb/cpia2/cpia2_v4l.c | 2 +-
drivers/media/usb/cx231xx/cx231xx-417.c | 2 +-
drivers/media/usb/cx231xx/cx231xx-video.c | 4 +-
drivers/media/usb/msi2500/msi2500.c | 2 +-
drivers/media/usb/tm6000/tm6000-video.c | 2 +-
drivers/media/usb/uvc/uvc_queue.c | 5 +-
drivers/media/usb/uvc/uvc_v4l2.c | 3 +-
drivers/media/usb/uvc/uvcvideo.h | 1 +
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 19 +-
drivers/media/v4l2-core/v4l2-ctrls.c | 612 ++++++++++++++++++++-
drivers/media/v4l2-core/v4l2-dev.c | 18 +-
drivers/media/v4l2-core/v4l2-device.c | 3 +-
drivers/media/v4l2-core/v4l2-ioctl.c | 50 +-
drivers/media/v4l2-core/v4l2-mem2mem.c | 67 ++-
drivers/media/v4l2-core/v4l2-subdev.c | 9 +-
drivers/staging/media/Kconfig | 2 +
drivers/staging/media/Makefile | 1 +
drivers/staging/media/davinci_vpfe/vpfe_video.c | 7 +-
drivers/staging/media/imx/imx-media-dev.c | 2 +-
drivers/staging/media/imx/imx-media-fim.c | 2 +-
drivers/staging/media/omap4iss/iss_video.c | 3 +-
drivers/staging/media/sunxi/Kconfig | 15 +
drivers/staging/media/sunxi/Makefile | 1 +
drivers/staging/media/sunxi/cedrus/Kconfig | 14 +
drivers/staging/media/sunxi/cedrus/Makefile | 3 +
drivers/staging/media/sunxi/cedrus/TODO | 7 +
drivers/staging/media/sunxi/cedrus/cedrus.c | 431 +++++++++++++++
drivers/staging/media/sunxi/cedrus/cedrus.h | 167 ++++++
drivers/staging/media/sunxi/cedrus/cedrus_dec.c | 70 +++
drivers/staging/media/sunxi/cedrus/cedrus_dec.h | 27 +
drivers/staging/media/sunxi/cedrus/cedrus_hw.c | 327 +++++++++++
drivers/staging/media/sunxi/cedrus/cedrus_hw.h | 30 +
drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c | 246 +++++++++
drivers/staging/media/sunxi/cedrus/cedrus_regs.h | 235 ++++++++
drivers/staging/media/sunxi/cedrus/cedrus_video.c | 542 ++++++++++++++++++
drivers/staging/media/sunxi/cedrus/cedrus_video.h | 30 +
drivers/usb/gadget/function/uvc_queue.c | 2 +-
include/media/media-device.h | 29 +
include/media/media-request.h | 442 +++++++++++++++
include/media/v4l2-ctrls.h | 141 ++++-
include/media/v4l2-device.h | 11 +
include/media/v4l2-mem2mem.h | 4 +
include/media/videobuf2-core.h | 64 ++-
include/media/videobuf2-v4l2.h | 20 +-
include/uapi/linux/media.h | 8 +
include/uapi/linux/v4l2-controls.h | 65 +++
include/uapi/linux/videodev2.h | 33 +-
102 files changed, 6166 insertions(+), 385 deletions(-)
create mode 100644 Documentation/devicetree/bindings/media/cedrus.txt
create mode 100644 Documentation/devicetree/bindings/media/rockchip-vpu.txt
create mode 100644 Documentation/media/uapi/mediactl/media-ioc-request-alloc.rst
create mode 100644 Documentation/media/uapi/mediactl/media-request-ioc-queue.rst
create mode 100644 Documentation/media/uapi/mediactl/media-request-ioc-reinit.rst
create mode 100644 Documentation/media/uapi/mediactl/request-api.rst
create mode 100644 Documentation/media/uapi/mediactl/request-func-close.rst
create mode 100644 Documentation/media/uapi/mediactl/request-func-ioctl.rst
create mode 100644 Documentation/media/uapi/mediactl/request-func-poll.rst
create mode 100644 drivers/media/media-request.c
create mode 100644 drivers/staging/media/sunxi/Kconfig
create mode 100644 drivers/staging/media/sunxi/Makefile
create mode 100644 drivers/staging/media/sunxi/cedrus/Kconfig
create mode 100644 drivers/staging/media/sunxi/cedrus/Makefile
create mode 100644 drivers/staging/media/sunxi/cedrus/TODO
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus.c
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus.h
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_dec.c
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_dec.h
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_hw.c
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_hw.h
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_mpeg2.c
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_regs.h
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_video.c
create mode 100644 drivers/staging/media/sunxi/cedrus/cedrus_video.h
create mode 100644 include/media/media-request.h

Next message: Colin King: "[PATCH] gpio: sch311x: clean an indentation issue, remove extraneous space"
Previous message: Mauro Carvalho Chehab: "Re: [PATCH] dvb: Allow MAC addresses to be mapped to stable device names with udev"
Next in thread: Linus Torvalds: "Re: [GIT PULL for v4.20-rc1] new experimental media request API"
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