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powerpc/cell: use the generic iommu bypass code

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This gets rid of a lot of clumsy code and finally allows us to mark
dma_iommu_ops const.

Includes fixes from Michael Ellerman.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christoph Hellwig
2019-02-13 08:01:09 +01:00
committed by Michael Ellerman
parent cc9c156db5
commit ba767b5283
4 changed files with 20 additions and 135 deletions
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2
arch/powerpc/include/asm/dma-mapping.h
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@@ -74,7 +74,7 @@ static inline unsigned long device_to_mask(struct device *dev)
* Available generic sets of operations
*/
#ifdef CONFIG_PPC64
extern struct dma_map_ops dma_iommu_ops;
extern const struct dma_map_ops dma_iommu_ops;
#endif
extern const struct dma_map_ops dma_nommu_ops;