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| author | Christoph Hellwig <hch@lst.de> | 2017-12-23 13:01:41 +0300 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2018-01-15 11:34:59 +0300 |
| commit | cea9d03c822cf1b8e90cc4fc51be6d248fb5d776 (patch) | |
| tree | bb10e17d163c6acca0b72d24abb7e79686a58f64 /arch/x86/include/asm/dma-mapping.h | |
| parent | 57bf5a8963f80fb3828c46c3e3a5b2dd790e09a7 (diff) | |
| download | linux-cea9d03c822cf1b8e90cc4fc51be6d248fb5d776.tar.xz | |
dma-mapping: add an arch_dma_supported hook
To implement the x86 forbid_dac and iommu_sac_force we want an arch hook
so that it can apply the global options across all dma_map_ops
implementations.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'arch/x86/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index dfdc9357a349..6277c83c0eb1 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -30,6 +30,9 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return dma_ops; } +int arch_dma_supported(struct device *dev, u64 mask); +#define arch_dma_supported arch_dma_supported + bool arch_dma_alloc_attrs(struct device **dev, gfp_t *gfp); #define arch_dma_alloc_attrs arch_dma_alloc_attrs |