Repost due to a dumb bug that was introduced in vb2_dma_sg_get_userptr and
which is now fixed.
- Add allocation context to dma-sg and have vb2 do the dma mapping instead of
the driver. This makes it consistent with the way dma-contig behaves and
simplifies drivers.
- Add support for DMABUF import to dma-sg.
- Add support for DMABUF export to dma-sg and dma-vmalloc.
- Clarify (and fix) when buffers can safely be written to by the cpu.
After this patch series DMABUF is available for all v4l2_memory variants.
Regards,
Hans
The following changes since commit 5937a784c3e5fe8fd1e201f42a2b1ece6c36a6c0:
[media] staging: media: bcm2048: fix coding style error (2014-11-21 16:50:37 -0200)
are available in the git repository at:
git://linuxtv.org/hverkuil/media_tree.git vb2
for you to fetch changes up to a123fbe2efb83a5944bbf024feaf8bab00c111fa:
vb2: use dma_map_sg_attrs to prevent unnecessary sync (2014-11-24 12:50:53 +0100)
----------------------------------------------------------------
Hans Verkuil (12):
videobuf2-core.h: improve documentation
vb2: replace 'write' by 'dma_dir'
vb2: add dma_dir to the alloc memop.
vb2: don't free alloc context if it is ERR_PTR
vb2-dma-sg: add allocation context to dma-sg
vb2-dma-sg: move dma_(un)map_sg here
vb2-dma-sg: add dmabuf import support
vb2-dma-sg: add support for dmabuf exports
vb2-vmalloc: add support for dmabuf exports
vivid: enable vb2_expbuf support.
vim2m: support expbuf
vb2: use dma_map_sg_attrs to prevent unnecessary sync
drivers/media/pci/cx23885/cx23885-417.c | 4 +-
drivers/media/pci/cx23885/cx23885-core.c | 15 ++-
drivers/media/pci/cx23885/cx23885-dvb.c | 4 +-
drivers/media/pci/cx23885/cx23885-vbi.c | 10 +-
drivers/media/pci/cx23885/cx23885-video.c | 10 +-
drivers/media/pci/cx23885/cx23885.h | 1 +
drivers/media/pci/saa7134/saa7134-core.c | 18 ++-
drivers/media/pci/saa7134/saa7134-empress.c | 1 -
drivers/media/pci/saa7134/saa7134-ts.c | 17 +--
drivers/media/pci/saa7134/saa7134-vbi.c | 16 +--
drivers/media/pci/saa7134/saa7134-video.c | 16 +--
drivers/media/pci/saa7134/saa7134.h | 2 +-
drivers/media/pci/solo6x10/solo6x10-v4l2-enc.c | 60 +++++-----
drivers/media/pci/solo6x10/solo6x10.h | 1 +
drivers/media/pci/tw68/tw68-core.c | 15 ++-
drivers/media/pci/tw68/tw68-video.c | 9 +-
drivers/media/pci/tw68/tw68.h | 1 +
drivers/media/platform/marvell-ccic/mcam-core.c | 31 +++--
drivers/media/platform/marvell-ccic/mcam-core.h | 1 +
drivers/media/platform/vim2m.c | 1 +
drivers/media/platform/vivid/vivid-core.c | 2 +-
drivers/media/v4l2-core/videobuf2-core.c | 14 ++-
drivers/media/v4l2-core/videobuf2-dma-contig.c | 71 ++++++++----
drivers/media/v4l2-core/videobuf2-dma-sg.c | 425 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---
drivers/media/v4l2-core/videobuf2-vmalloc.c | 191 ++++++++++++++++++++++++++++--
include/media/videobuf2-core.h | 42 ++++---
include/media/videobuf2-dma-sg.h | 3 +
27 files changed, 766 insertions(+), 215 deletions(-)
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