[PATCHv3 0/8] videobuf2: support new noncontiguous DMA API

Sergey Senozhatsky
2021-07-09T09:20:36Z

Hello,

The series adds support for noncontiguous DMA API and
V4L2_MEMORY_FLAG_NON_COHERENT UAPI.

V2: https://lore.kernel.org/lkml/20210427131344.139443-1-senozhatsky@chromium.org/

v3:
-- addressed review feedback

Sergey Senozhatsky (8):
videobuf2: rework vb2_mem_ops API
videobuf2: inverse buffer cache_hints flags
videobuf2: split buffer cache_hints initialisation
videobuf2: move cache_hints handling to allocators
videobuf2: add V4L2_MEMORY_FLAG_NON_COHERENT flag
videobuf2: add queue memory coherency parameter
videobuf2: handle V4L2_MEMORY_FLAG_NON_COHERENT flag
videobuf2: handle non-contiguous DMA allocations

.../userspace-api/media/v4l/buffer.rst | 40 +++-
.../media/v4l/vidioc-create-bufs.rst | 7 +-
.../media/v4l/vidioc-reqbufs.rst | 16 +-
.../media/common/videobuf2/videobuf2-core.c | 127 ++++++++-----
.../common/videobuf2/videobuf2-dma-contig.c | 173 ++++++++++++++----
.../media/common/videobuf2/videobuf2-dma-sg.c | 39 ++--
.../media/common/videobuf2/videobuf2-v4l2.c | 59 +++---
.../common/videobuf2/videobuf2-vmalloc.c | 30 +--
drivers/media/dvb-core/dvb_vb2.c | 2 +-
drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 9 +-
drivers/media/v4l2-core/v4l2-ioctl.c | 4 +-
include/media/videobuf2-core.h | 59 +++---
include/uapi/linux/videodev2.h | 11 +-
13 files changed, 396 insertions(+), 180 deletions(-)

--
2.32.0.93.g670b81a890-goog