On 23 May 2012 14:07, Tomasz Stanislawski
<t.stanislaws@samsung.com> wrote:
Hello everyone,
The patches adds support for DMABUF exporting to V4L2 stack. The latest
support for DMABUF importing was posted in [1]. The exporter part is dependant
on DMA mapping redesign [2] which is not merged into the mainline. Therefore it
is posted as a separate patchset. Moreover some patches depends on vmap
extension for DMABUF by Dave Airlie [3] and sg_alloc_table_from_pages function
[4].
Do you have your own git ?
Thanks
Sangwook
Changelog:
v0: (RFC)
- updated setup of VIDIOC_EXPBUF ioctl
- doc updates
- introduced workaround to avoid using dma_get_pages,
- removed caching of exported dmabuf to avoid existence of circular reference
between dmabuf and vb2_dc_buf or resource leakage
- removed all 'change behaviour' patches
- inital support for exporting in s5p-mfs driver
- removal of vb2_mmap_pfn_range that is no longer used
- use sg_alloc_table_from_pages instead of creating sglist in vb2_dc code
- move attachment allocation to exporter's attach callback
[1] http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/48730
[2] http://thread.gmane.org/gmane.linux.kernel.cross-arch/14098
[3] http://permalink.gmane.org/gmane.comp.video.dri.devel/69302
[4] This patchset is rebased on 3.4-rc1 plus the following patchsets:
Marek Szyprowski (1):
v4l: vb2-dma-contig: let mmap method to use dma_mmap_coherent call
Tomasz Stanislawski (11):
v4l: add buffer exporting via dmabuf
v4l: vb2: add buffer exporting via dmabuf
v4l: vb2-dma-contig: add setup of sglist for MMAP buffers
v4l: vb2-dma-contig: add support for DMABUF exporting
v4l: vb2-dma-contig: add vmap/kmap for dmabuf exporting
v4l: s5p-fimc: support for dmabuf exporting
v4l: s5p-tv: mixer: support for dmabuf exporting
v4l: s5p-mfc: support for dmabuf exporting
v4l: vb2: remove vb2_mmap_pfn_range function
v4l: vb2-dma-contig: use sg_alloc_table_from_pages function
v4l: vb2-dma-contig: Move allocation of dbuf attachment to attach cb
drivers/media/video/s5p-fimc/fimc-capture.c | 9 +
drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 13 ++
drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 13 ++
drivers/media/video/s5p-tv/mixer_video.c | 10 +
drivers/media/video/v4l2-compat-ioctl32.c | 1 +
drivers/media/video/v4l2-dev.c | 1 +
drivers/media/video/v4l2-ioctl.c | 6 +
drivers/media/video/videobuf2-core.c | 67 ++++++
drivers/media/video/videobuf2-dma-contig.c | 323 ++++++++++++++++++++++-----
drivers/media/video/videobuf2-memops.c | 40 ----
include/linux/videodev2.h | 26 +++
include/media/v4l2-ioctl.h | 2 +
include/media/videobuf2-core.h | 2 +
include/media/videobuf2-memops.h | 5 -
14 files changed, 411 insertions(+), 107 deletions(-)
--
1.7.9.5
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