arch/sparc/include/asm/dma-mapping.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef ___ASM_SPARC_DMA_MAPPING_H
   3 #define ___ASM_SPARC_DMA_MAPPING_H
   4
   5 #include <asm/cpu_type.h>
   6
   7 extern const struct dma_map_ops *dma_ops;
   8
   9 extern struct bus_type pci_bus_type;
  10
  11 static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
  12 {
  13 #ifdef CONFIG_SPARC_LEON
  14         if (sparc_cpu_model == sparc_leon)
  15                 return NULL;
  16 #endif
  17 #if defined(CONFIG_SPARC32) && defined(CONFIG_PCI)
  18         if (bus == &pci_bus_type)
  19                 return NULL;
  20 #endif
  21         return dma_ops;
  22 }
  23
  24 #endif