From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx> Hi, One more iteration of the explicit fences patches, please refer to the previous version[1] for more details about the general mechanism This version makes the patchset and the implementation much more simple, to start we are not using a ordered capability anymore, but instead we have a VIDIOC_ENUM_FMT flag to tell when the queue in not ordered. Drivers with ordered queues/formats don't need implement anything. See patches 1 and 2 for more details. The implementation of in-fences and out-fences were condensed in just patches 4 and 5, making it more self-contained and easy to understand. See the patches for detailed changelog. Please review! Thanks. Gustavo. [1] https://lkml.org/lkml/2017/11/15/550 Gustavo Padovan (6): [media] vb2: add is_unordered callback for drivers [media] v4l: add 'unordered' flag to format description ioctl [media] vb2: add explicit fence user API [media] vb2: add in-fence support to QBUF [media] vb2: add out-fence support to QBUF [media] v4l: Document explicit synchronization behavior Documentation/media/uapi/v4l/buffer.rst | 15 ++ Documentation/media/uapi/v4l/vidioc-enum-fmt.rst | 3 + Documentation/media/uapi/v4l/vidioc-qbuf.rst | 47 ++++- Documentation/media/uapi/v4l/vidioc-querybuf.rst | 9 +- drivers/media/usb/cpia2/cpia2_v4l.c | 2 +- drivers/media/v4l2-core/Kconfig | 1 + drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 4 +- drivers/media/v4l2-core/videobuf2-core.c | 239 +++++++++++++++++++++-- drivers/media/v4l2-core/videobuf2-v4l2.c | 52 ++++- include/media/videobuf2-core.h | 41 +++- include/uapi/linux/videodev2.h | 8 +- 11 files changed, 393 insertions(+), 28 deletions(-) -- 2.13.6
