root/arch/powerpc/include/asm/dma-direct.h

INCLUDED FROM

DEFINITIONS

1. dma_capable
2. __phys_to_dma
3. __dma_to_phys

   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 */