Em Fri, 11 Sep 2020 12:52:57 +0200 Hans Verkuil <hverkuil@xxxxxxxxx> escreveu: > From the commit log of the patch: > > -------------------------------------------------------------------- > The patch partially reverts some of the UAPI bits of the buffer > cache management hints. Namely, the queue consistency (memory > coherency) user-space hint because, as it turned out, the kernel > implementation of this feature was misusing DMA_ATTR_NON_CONSISTENT. > > The patch revers both kernel and user space parts: removes the > DMA consistency attr functions, rolls back changes to v4l2_requestbuffers, > v4l2_create_buffers structures and corresponding UAPI functions > (plus compat32 layer) and cleans up the documentation. > -------------------------------------------------------------------- > > The intention is that this feature will return once proper low-level support > for this has been sorted. A patch to revert the v4l-utils changes is ready > to be merged once this patch made it's way to our master branch: > > https://patchwork.linuxtv.org/project/linux-media/patch/20200911030952.74468-1-sergey.senozhatsky@xxxxxxxxx/ > > I've tested this with the test-media script. > > Regards, > > Hans > > The following changes since commit 93c16fabdb74a9c1a427402fc1fe588a45130c5b: > > media: ov8856: Add support for 3264x2448 mode (2020-09-10 14:29:35 +0200) > > are available in the Git repository at: > > git://linuxtv.org/hverkuil/media_tree.git tags/br-v5.9-mem > > for you to fetch changes up to d36642b40255022dda1cfcaebe82e40a592d4ee8: > > media/v4l2: remove V4L2_FLAG_MEMORY_NON_CONSISTENT flag (2020-09-11 12:26:54 +0200) This caused a warning when building the html books. Not sure why the robot didn't warn. I'll be posting a fix at the ML. Thanks, Mauro
