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common: DMA-mapping: add WRITE_COMBINE attribute
authorMarek Szyprowski <m.szyprowski@samsung.com>
Fri, 23 Dec 2011 08:30:47 +0000 (09:30 +0100)
committerGrazvydas Ignotas <notasas@gmail.com>
Tue, 26 Feb 2013 17:51:03 +0000 (19:51 +0200)
commit1f17804d368a3735700a32850cfb35b56794c186
tree547098f3ddf78ad2c079ceb1e7ef398300e14f15tree | snapshot
parenta7820e15ba7eee9aacf6bbc84fccf788f6de3c6dcommit | diff
common: DMA-mapping: add WRITE_COMBINE attribute

DMA_ATTR_WRITE_COMBINE specifies that writes to the mapping may be
buffered to improve performance. It will be used by the replacement for
ARM/ARV32 specific dma_alloc_writecombine() function.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Documentation/DMA-attributes.txt diff | blob | history
include/linux/dma-attrs.h diff | blob | history
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