linux/arch/mips/include/asm/dma-direct.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _MIPS_DMA_DIRECT_H
#define _MIPS_DMA_DIRECT_H 1

dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);

#endif /* _MIPS_DMA_DIRECT_H */
MIPS: consolidate the swiotlb implementations Octeon and Loongson share exactly the same code, move it into a common implementation, and use that implementation directly from get_arch_dma_ops. Also provide the expected dma-direct.h helpers directly instead of delegating to platform dma-coherence.h headers. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19534/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org 2018-06-15 11:08:36 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef _MIPS_DMA_DIRECT_H`
			`#define _MIPS_DMA_DIRECT_H 1`

dma-direct: rename and cleanup __phys_to_dma The __phys_to_dma vs phys_to_dma distinction isn't exactly obvious. Try to improve the situation by renaming __phys_to_dma to phys_to_dma_unencryped, and not forcing architectures that want to override phys_to_dma to actually provide __phys_to_dma. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> 2020-08-17 15:34:03 +00:00			`dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);`
dma-direct: remove __dma_to_phys There is no harm in just always clearing the SME encryption bit, while significantly simplifying the interface. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> 2020-09-08 15:56:22 +00:00			`phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);`
MIPS: consolidate the swiotlb implementations Octeon and Loongson share exactly the same code, move it into a common implementation, and use that implementation directly from get_arch_dma_ops. Also provide the expected dma-direct.h helpers directly instead of delegating to platform dma-coherence.h headers. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19534/ Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Jiaxun Yang <jiaxun.yang@flygoat.com> Cc: Tom Bogendoerfer <tsbogend@alpha.franken.de> Cc: Huacai Chen <chenhc@lemote.com> Cc: iommu@lists.linux-foundation.org Cc: linux-mips@linux-mips.org 2018-06-15 11:08:36 +00:00
			`#endif /* _MIPS_DMA_DIRECT_H */`