bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

dma-mapping: direct calls for dma-iommu

Browse Source 
Directly call into dma-iommu just like we have been doing for dma-direct
for a while.  This avoids the indirect call overhead for IOMMU ops and
removes the need to have DMA ops entirely for many common configurations.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Leon Romanovsky
2024-07-24 21:04:49 +03:00
committed by Christoph Hellwig
parent f69e342eec
commit b5c58b2fdc
10 changed files with 269 additions and 93 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
kernel/dma/Kconfig
View File

@@ -8,8 +8,12 @@ config HAS_DMA
depends on !NO_DMA
default y
config DMA_OPS_HELPERS
bool
config DMA_OPS
depends on HAS_DMA
select DMA_OPS_HELPERS
bool
#