diff options
| author | Leon Romanovsky <leonro@nvidia.com> | 2024-07-24 21:04:49 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2024-08-22 06:18:11 +0200 |
| commit | b5c58b2fdc427e7958412ecb2de2804a1f7c1572 (patch) | |
| tree | 6990c73ac5918df08b138af03ad83519368e0221 /kernel/dma/Kconfig | |
| parent | f69e342eec008e1bab772d3963c3dd9979293e13 (diff) | |
dma-mapping: direct calls for dma-iommu
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>
Diffstat (limited to 'kernel/dma/Kconfig')
| -rw-r--r-- | kernel/dma/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index c06e56be0ca1..21bae1700836 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -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 # |