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| author |   Will Deacon <will.deacon@arm.com> | 2014-08-27 15:49:10 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2014-12-01 16:50:32 +0000 |
| commit | a3a60f81ee6f8fa65a57fa186b395bcd1f1bb097 (patch) | |
| tree | fb9f47c0b0f9065916242bfa76864d5b72825b8f /arch/arm/include/asm/dma-mapping.h | |
| parent | iommu: provide early initialisation hook for IOMMU drivers (diff) | |
| download | linux-dev-a3a60f81ee6f8fa65a57fa186b395bcd1f1bb097.tar.xz linux-dev-a3a60f81ee6f8fa65a57fa186b395bcd1f1bb097.zip | |
dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops
set_arch_dma_coherent_ops is called from of_dma_configure in order to
swizzle the architectural dma-mapping functions over to a cache-coherent
implementation. This is currently implemented only for ARM.
In anticipation of re-using this mechanism for IOMMU-backed dma-mapping
ops too, this patch replaces the function with a broader
arch_setup_dma_ops callback which will be extended in future.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 85738b200023..dc3420e77758 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -121,12 +121,12 @@ static inline unsigned long dma_max_pfn(struct device *dev) } #define dma_max_pfn(dev) dma_max_pfn(dev) -static inline int set_arch_dma_coherent_ops(struct device *dev) +static inline void arch_setup_dma_ops(struct device *dev, bool coherent) { - set_dma_ops(dev, &arm_coherent_dma_ops); - return 0; + if (coherent) + set_dma_ops(dev, &arm_coherent_dma_ops); } -#define set_arch_dma_coherent_ops(dev) set_arch_dma_coherent_ops(dev) +#define arch_setup_dma_ops arch_setup_dma_ops static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) { |