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(parent: a081200) | patch
arch/sparc: add option to skip DMA sync as a part of map and unmap
authorAlexander Duyck <[email protected]>
Wed, 14 Dec 2016 23:05:15 +0000 (15:05 -0800)
committerLinus Torvalds <[email protected]>
Thu, 15 Dec 2016 00:04:07 +0000 (16:04 -0800)
commit68bbc28f616c18b695a13e59adefb9a1fc0c46a0
tree60d6d2e062f44c5ad9e3c5e418eda9978370f518tree | snapshot
parenta08120017d7d659719d446fb036d500fa9b1e6f9commit | diff
arch/sparc: add option to skip DMA sync as a part of map and unmap

This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to
avoid invoking cache line invalidation if the driver will just handle it
via a sync_for_cpu or sync_for_device call.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Alexander Duyck <[email protected]>
Cc: "David S. Miller" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
arch/sparc/kernel/iommu.c diff | blob | blame | history
arch/sparc/kernel/ioport.c diff | blob | blame | history
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