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common: DMA-mapping: Add strongly ordered memory attribute

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Strongly ordered memory is occasionally needed for some DMA
allocations for specialized use cases. Add the corresponding
DMA attribute.

Change-Id: Idd9e756c242ef57d6fa6700e51cc38d0863b760d
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Mitchel Humpherys <mitchelh@codeaurora.org>
This commit is contained in:
Laura Abbott
2012-10-29 13:08:03 -07:00
committed by Stephen Boyd
parent 0f53e5abb2
commit c1386f095a
2 changed files with 10 additions and 0 deletions
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include/linux/dma-attrs.h
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@@ -16,6 +16,7 @@ enum dma_attr {
DMA_ATTR_WRITE_COMBINE,
DMA_ATTR_NON_CONSISTENT,
DMA_ATTR_NO_KERNEL_MAPPING,
DMA_ATTR_STRONGLY_ORDERED,
DMA_ATTR_MAX,
};