From ea8c64ace86647260ec4255f483e5844d62af2df Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 10 Jan 2018 16:21:13 +0100 Subject: dma-mapping: move swiotlb arch helpers to a new header phys_to_dma, dma_to_phys and dma_capable are helpers published by architecture code for use of swiotlb and xen-swiotlb only. Drivers are not supposed to use these directly, but use the DMA API instead. Move these to a new asm/dma-direct.h helper, included by a linux/dma-direct.h wrapper that provides the default linear mapping unless the architecture wants to override it. In the MIPS case the existing dma-coherent.h is reused for now as untangling it will take a bit of work. Signed-off-by: Christoph Hellwig Acked-by: Robin Murphy --- arch/xtensa/include/asm/dma-mapping.h | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'arch/xtensa/include') diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h index 153bf2370988..44098800dad7 100644 --- a/arch/xtensa/include/asm/dma-mapping.h +++ b/arch/xtensa/include/asm/dma-mapping.h @@ -23,14 +23,4 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return &xtensa_dma_map_ops; } -static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) -{ - return (dma_addr_t)paddr; -} - -static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) -{ - return (phys_addr_t)daddr; -} - #endif /* _XTENSA_DMA_MAPPING_H */ -- cgit v1.2.3