1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef ASM_POWERPC_DMA_DIRECT_H 3 #define ASM_POWERPC_DMA_DIRECT_H 1 4 5 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) 6 { 7 #ifdef CONFIG_SWIOTLB 8 struct dev_archdata *sd = &dev->archdata; 9 10 if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr) 11 return false; 12 #endif 13 14 if (!dev->dma_mask) 15 return false; 16 17 return addr + size - 1 <= *dev->dma_mask; 18 } 19 20 static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) 21 { 22 return paddr + get_dma_offset(dev); 23 } 24 25 static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr) 26 { 27 return daddr - get_dma_offset(dev); 28 } 29 #endif /* ASM_POWERPC_DMA_DIRECT_H */ 30