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f6d302e33d
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
35 lines
867 B
C
35 lines
867 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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#include <linux/scatterlist.h>
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#include <asm/dma-coherence.h>
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#include <asm/cache.h>
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#ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */
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#include <dma-coherence.h>
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#endif
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extern const struct dma_map_ops *mips_dma_map_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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#ifdef CONFIG_SWIOTLB
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return &mips_swiotlb_ops;
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#else
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return mips_dma_map_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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