30 lines
713 B
C
30 lines
713 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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#ifdef CONFIG_SWIOTLB
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struct dev_archdata *sd = &dev->archdata;
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if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr)
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return false;
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#endif
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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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static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
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{
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return paddr + get_dma_offset(dev);
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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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return daddr - get_dma_offset(dev);
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}
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#endif /* ASM_POWERPC_DMA_DIRECT_H */
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