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 if (!dev->dma_mask) 8 return false; 9 10 return addr + size - 1 <= 11 min_not_zero(*dev->dma_mask, dev->bus_dma_mask); 12 } 13 14 static inline dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr) 15 { 16 if (!dev) 17 return paddr + PCI_DRAM_OFFSET; 18 return paddr + dev->archdata.dma_offset; 19 } 20 21 static inline phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr) 22 { 23 if (!dev) 24 return daddr - PCI_DRAM_OFFSET; 25 return daddr - dev->archdata.dma_offset; 26 } 27 #endif /* ASM_POWERPC_DMA_DIRECT_H */ 28