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path: root/drivers/media/v4l2-core/videobuf2-vmalloc.c
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2014-12-02[media] V4L2: Deletion of an unnecessary check before the function call ↵Markus Elfring1-2/+1
"vb2_put_vma" The vb2_put_vma() function tests whether its argument is NULL and then returns immediately. Thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Acked-by: Marek Szyprowski <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2014-11-25[media] vb2-vmalloc: add support for dmabuf exportsHans Verkuil1-0/+171
Add support for DMABUF exporting to the vb2-vmalloc implementation. All memory models now have support for both importing and exporting of DMABUFs. Signed-off-by: Hans Verkuil <[email protected]> Acked-by: Pawel Osciak <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2014-11-25[media] vb2: add dma_dir to the alloc memopHans Verkuil1-1/+3
This is needed for the next patch where the dma-sg alloc memop needs to know the dma_dir. Signed-off-by: Hans Verkuil <[email protected]> Acked-by: Pawel Osciak <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2014-11-25[media] vb2: replace 'write' by 'dma_dir'Hans Verkuil1-7/+9
The 'write' argument is very ambiguous. I first assumed that if it is 1, then we're doing video output but instead it meant the reverse. Since it is used to setup the dma_dir value anyway it is now replaced by the correct dma_dir value which is unambiguous. Signed-off-by: Hans Verkuil <[email protected]> Acked-by: Pawel Osciak <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2013-03-21[media] videobuf2: add gfp_flagsHans Verkuil1-2/+2
Some drivers have special memory requirements for their buffers, usually related to DMA (e.g. GFP_DMA or __GFP_DMA32). Make it possible to specify additional GFP flags for those buffers by adding a gfp_flags field to vb2_queue. Note that this field will be replaced in the future with a different mechanism, but that is still work in progress and we need this feature now so we won't be able to convert drivers with such requirements to vb2. Signed-off-by: Hans Verkuil <[email protected]> Acked-by: Marek Szyprowski <[email protected]> Acked-by: Federico Vaga <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2012-11-25[media] v4l: vb2-vmalloc: add support for dmabuf importingTomasz Stanislawski1-0/+56
This patch adds support for importing DMABUF files for vmalloc allocator in Videobuf2. Signed-off-by: Tomasz Stanislawski <[email protected]> Signed-off-by: Kyungmin Park <[email protected]> Acked-by: Laurent Pinchart <[email protected]> Acked-by: Hans Verkuil <[email protected]> Tested-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]>
2012-08-13[media] v4l: move v4l2 core into a separate directoryMauro Carvalho Chehab1-0/+223
Currently, the v4l2 core is mixed together with other non-core drivers. Move them into a separate directory. Signed-off-by: Mauro Carvalho Chehab <[email protected]>
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