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* dma-buf: document fd flags and O_CLOEXEC requirementRob Clark2012-03-261-0/+18
| | | | | | | | | Otherwise subsystems will get this wrong and end up with a second export ioctl with the flag and O_CLOEXEC support added. Signed-off-by: Rob Clark <rob@ti.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
* dma_buf: Add documentation for the new cpu access supportDaniel Vetter2012-03-261-3/+99
| | | | | | | | v2: Fix spelling issues noticed by Rob Clark. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
* dma-buf: Documentation update for Kconfig selectSumit Semwal2012-01-131-0/+4
| | | | | | | | | | As per Linus' comment, dma-buf Kconfig entry shouldn't have an option text, but should be selected by the subsystems that use it. Add this information in the documentation as well. Signed-off-by: Sumit Semwal <sumit.semwal@ti.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
* dma-buf: Documentation for buffer sharing frameworkSumit Semwal2012-01-061-0/+224
Add documentation for dma buffer sharing framework, explaining the various operations, members and API of the dma buffer sharing framework. Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Sumit Semwal <sumit.semwal@ti.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
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