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| author | Takeshi Kihara <takeshi.kihara.df@renesas.com> | 2017-01-11 11:11:17 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-01-12 15:34:15 +0000 |
| commit | 7f332fc1f0f053799aeda587cefbc67b5ecd72c5 (patch) | |
| tree | 4669589f4875bb121bc1f5dff4b2d41502b3aa82 /arch/m32r/oprofile | |
| parent | ec6d06efb0bac6cd92846e42d1afe5b98b57e7c2 (diff) | |
| download | linux-7f332fc1f0f053799aeda587cefbc67b5ecd72c5.tar.bz2 | |
arm64: Add support for DMA_ATTR_SKIP_CPU_SYNC attribute to swiotlb
This patch adds support for DMA_ATTR_SKIP_CPU_SYNC attribute for
dma_{un}map_{page,sg} functions family to swiotlb.
DMA_ATTR_SKIP_CPU_SYNC allows platform code to skip synchronization of
the CPU cache for the given buffer assuming that it has been already
transferred to 'device' domain.
Ported from IOMMU .{un}map_{sg,page} ops.
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/m32r/oprofile')
0 files changed, 0 insertions, 0 deletions