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authorAndrzej Pietrasiewicz <andrzej.p@samsung.com>2010-11-29 11:53:34 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-03-21 20:31:34 -0300
commit5ba3f757f0592ca001266b4a6214d0332349909c (patch)
tree6d633613aa60123712488647b56341ba41e5e7b2 /drivers/media/video/Kconfig
parent1a758d4e847f7743ac1b5aa79fde3ba2d8b5132b (diff)
[media] v4l: videobuf2: add DMA scatter/gather allocator
Add an implementation of DMA scatter/gather allocator and handling routines for videobuf2. For mmap operation mode it is implemented on top of alloc_page + sg_set_page/_free_page. For userptr operation mode it is implemented on top of get_user_pages + sg_set_page/put_page. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> CC: Pawel Osciak <pawel@osciak.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/Kconfig')
-rw-r--r--drivers/media/video/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index b64183e06348..8710d90f9e16 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -60,6 +60,12 @@ config VIDEOBUF2_VMALLOC
select VIDEOBUF2_MEMOPS
tristate
+
+config VIDEOBUF2_DMA_SG
+ #depends on HAS_DMA
+ select VIDEOBUF2_CORE
+ select VIDEOBUF2_MEMOPS
+ tristate
#
# Multimedia Video device configuration
#