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803ad26eed
Keep this file as light as possible as it gets pulled into every driver using dma mapping APIs. Signed-off-by: Christoph Hellwig <hch@lst.de> Patchwork: https://patchwork.linux-mips.org/patch/19552/ 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
31 lines
807 B
C
31 lines
807 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_DMA_MAPPING_H
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#define _ASM_DMA_MAPPING_H
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extern const struct dma_map_ops jazz_dma_ops;
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extern const struct dma_map_ops mips_swiotlb_ops;
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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{
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#if defined(CONFIG_MACH_JAZZ)
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return &jazz_dma_ops;
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#elif defined(CONFIG_SWIOTLB)
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return &mips_swiotlb_ops;
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#elif defined(CONFIG_DMA_NONCOHERENT_OPS)
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return &dma_noncoherent_ops;
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#else
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return &dma_direct_ops;
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#endif
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}
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#define arch_setup_dma_ops arch_setup_dma_ops
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static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base,
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u64 size, const struct iommu_ops *iommu,
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bool coherent)
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{
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#ifdef CONFIG_DMA_PERDEV_COHERENT
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dev->archdata.dma_coherent = coherent;
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#endif
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}
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#endif /* _ASM_DMA_MAPPING_H */
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