projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 828b35f6 JG |
1 | #ifndef _ASM_S390_DMA_MAPPING_H |
| 2 | #define _ASM_S390_DMA_MAPPING_H | |
| 3 | ||
| 4 | #include <linux/kernel.h> | |
| 5 | #include <linux/types.h> | |
| 6 | #include <linux/mm.h> | |
| 7 | #include <linux/scatterlist.h> | |
| 828b35f6 JG |
8 | #include <linux/dma-debug.h> |
| 9 | #include <linux/io.h> | |
| 10 | ||
| 11 | #define DMA_ERROR_CODE (~(dma_addr_t) 0x0) | |
| 12 | ||
| e82becfc | 13 | extern struct dma_map_ops s390_pci_dma_ops; |
| 828b35f6 JG |
14 | |
| 15 | static inline struct dma_map_ops *get_dma_ops(struct device *dev) | |
| 16 | { | |
| e82becfc CB |
17 | if (dev && dev->archdata.dma_ops) |
| 18 | return dev->archdata.dma_ops; | |
| 19 | return &dma_noop_ops; | |
| 828b35f6 JG |
20 | } |
| 21 | ||
| e978948d HC |
22 | static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
| 23 | enum dma_data_direction direction) | |
| 24 | { | |
| 25 | } | |
| 828b35f6 | 26 | |
| 828b35f6 JG |
27 | static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) |
| 28 | { | |
| 29 | if (!dev->dma_mask) | |
| 1c6e4b18 | 30 | return false; |
| 828b35f6 JG |
31 | return addr + size - 1 <= *dev->dma_mask; |
| 32 | } | |
| 33 | ||
| 828b35f6 | 34 | #endif /* _ASM_S390_DMA_MAPPING_H */ |