28 lines
687 B
C
28 lines
687 B
C
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/* 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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