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(parent: 68bbc28) | patch
arch/tile: add option to skip DMA sync as a part of map and unmap
authorAlexander Duyck <[email protected]>
Wed, 14 Dec 2016 23:05:18 +0000 (15:05 -0800)
committerLinus Torvalds <[email protected]>
Thu, 15 Dec 2016 00:04:08 +0000 (16:04 -0800)
commit33c77e53d838dc27e9d2edec5b6ab6a11861fb32
treec41c4e8c2d2c058ced9db32f5b71ba0b25dceab6tree | snapshot
parent68bbc28f616c18b695a13e59adefb9a1fc0c46a0commit | diff
arch/tile: 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: Chris Metcalf <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
arch/tile/kernel/pci-dma.c diff | blob | history
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