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| author |   Christoph Hellwig <hch@lst.de> | 2019-03-25 15:44:06 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2019-05-06 15:04:40 +0200 |
| commit | 13bf5ced93775ffccb53527a9d862e023a9daa03 (patch) | |
| tree | 8841a56889a7b6468e7c81215428376358345211 /drivers/video | |
| parent | dma-mapping: remove an unnecessary NULL check (diff) | |
| download | linux-dev-13bf5ced93775ffccb53527a9d862e023a9daa03.tar.xz linux-dev-13bf5ced93775ffccb53527a9d862e023a9daa03.zip | |
dma-mapping: add a Kconfig symbol to indicate arch_dma_prep_coherent presence
Add a Kconfig symbol that indicates an architecture provides a
arch_dma_prep_coherent implementation, and provide a stub otherwise.
This will allow the generic dma-iommu code to use it while still
allowing to be built for cache coherent architectures.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'drivers/video')
0 files changed, 0 insertions, 0 deletions