| #ifndef _ASM_S390_DMA_MAPPING_H |
| #define _ASM_S390_DMA_MAPPING_H |
| |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/mm.h> |
| #include <linux/scatterlist.h> |
| #include <linux/dma-debug.h> |
| #include <linux/io.h> |
| |
| #define DMA_ERROR_CODE (~(dma_addr_t) 0x0) |
| |
| extern struct dma_map_ops s390_pci_dma_ops; |
| |
| static inline struct dma_map_ops *get_dma_ops(struct device *dev) |
| { |
| if (dev && dev->archdata.dma_ops) |
| return dev->archdata.dma_ops; |
| return &dma_noop_ops; |
| } |
| |
| static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
| enum dma_data_direction direction) |
| { |
| } |
| |
| static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) |
| { |
| if (!dev->dma_mask) |
| return false; |
| return addr + size - 1 <= *dev->dma_mask; |
| } |
| |
| #endif /* _ASM_S390_DMA_MAPPING_H */ |
