mirror-linux/include/uapi
Sergey Senozhatsky c0acf9cfee media: videobuf2: handle V4L2_MEMORY_FLAG_NON_COHERENT flag
This patch lets user-space request a non-coherent memory
allocation during CREATE_BUFS and REQBUFS ioctl calls.

= CREATE_BUFS

  struct v4l2_create_buffers has seven 4-byte reserved areas,
  so reserved[0] is renamed to ->flags. The struct, thus, now
  has six reserved 4-byte regions.

= CREATE_BUFS32

  struct v4l2_create_buffers32 has seven 4-byte reserved areas,
  so reserved[0] is renamed to ->flags. The struct, thus, now
  has six reserved 4-byte regions.

= REQBUFS

 We use one byte of a 4 byte ->reserved[1] member of struct
 v4l2_requestbuffers. The struct, thus, now has reserved 3 bytes.

Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2021-09-30 10:07:57 +02:00
..
asm-generic compat: remove some compat entry points 2021-09-08 15:32:35 -07:00
drm drm/tegra: Changes for v5.15-rc1 2021-08-26 13:05:19 +10:00
linux media: videobuf2: handle V4L2_MEMORY_FLAG_NON_COHERENT flag 2021-09-30 10:07:57 +02:00
misc habanalabs: add "in device creation" status 2021-09-01 18:38:24 +03:00
mtd
rdma Merge branch 'sg_nents' into rdma.git for-next 2021-08-30 09:49:59 -03:00
scsi scsi: fc: Add EDC ELS definition 2021-08-24 22:56:33 -04:00
sound ASoC: Updates for v5.15 2021-08-30 14:57:03 +02:00
video
xen
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