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dma-mapping: detect and configure IOMMU in of_dma_configure

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This patch extends of_dma_configure so that it sets up the IOMMU for a
device, as well as the coherent/non-coherent DMA mapping ops.

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>
This commit is contained in:
Will Deacon
2014-08-27 16:24:20 +01:00
parent 461bfb3fe7
commit 97890ba928
3 changed files with 24 additions and 9 deletions
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8
include/linux/dma-mapping.h
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@@ -130,7 +130,13 @@ static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
extern u64 dma_get_required_mask(struct device *dev);
#ifndef arch_setup_dma_ops
static inline void arch_setup_dma_ops(struct device *dev, bool coherent) { }
static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
u64 size, struct iommu_ops *iommu,
bool coherent) { }
#endif
#ifndef arch_teardown_dma_ops
static inline void arch_teardown_dma_ops(struct device *dev) { }
#endif
static inline unsigned int dma_get_max_seg_size(struct device *dev)