forked from mirrors/linux
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
16 lines
426 B
C
16 lines
426 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _MIPS_DMA_DIRECT_H
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#define _MIPS_DMA_DIRECT_H 1
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static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
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{
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if (!dev->dma_mask)
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return false;
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return addr + size - 1 <= *dev->dma_mask;
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}
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dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
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phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
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#endif /* _MIPS_DMA_DIRECT_H */
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