forked from Minki/linux
7610fdf5e0
Just fold the calculation into __phys_to_dma/__dma_to_phys as those are the only places that should know about it. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
28 lines
687 B
C
28 lines
687 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ASM_POWERPC_DMA_DIRECT_H
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#define ASM_POWERPC_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 <=
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min_not_zero(*dev->dma_mask, dev->bus_dma_mask);
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}
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static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
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{
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if (!dev)
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return paddr + PCI_DRAM_OFFSET;
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return paddr + dev->archdata.dma_offset;
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}
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static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr)
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{
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if (!dev)
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return daddr - PCI_DRAM_OFFSET;
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return daddr - dev->archdata.dma_offset;
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}
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#endif /* ASM_POWERPC_DMA_DIRECT_H */
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