| Sudip Mukherjee | eb17726 | 2016-12-12 16:40:54 -0800 | [diff] [blame] | 1 | #ifndef _ASM_M32R_DMA_MAPPING_H |
| 2 | #define _ASM_M32R_DMA_MAPPING_H |
| 3 | |
| 4 | #include <linux/kernel.h> |
| 5 | #include <linux/types.h> |
| 6 | #include <linux/mm.h> |
| 7 | #include <linux/scatterlist.h> |
| 8 | #include <linux/dma-debug.h> |
| 9 | #include <linux/io.h> |
| 10 | |
| 11 | #define DMA_ERROR_CODE (~(dma_addr_t)0x0) |
| 12 | |
| Bart Van Assche | 5299709 | 2017-01-20 13:04:01 -0800 | [diff] [blame] | 13 | static inline const struct dma_map_ops *get_dma_ops(struct device *dev) |
| Sudip Mukherjee | eb17726 | 2016-12-12 16:40:54 -0800 | [diff] [blame] | 14 | { |
| Bart Van Assche | 5657933 | 2017-01-20 13:04:02 -0800 | [diff] [blame] | 15 | if (dev && dev->dma_ops) |
| 16 | return dev->dma_ops; |
| Sudip Mukherjee | eb17726 | 2016-12-12 16:40:54 -0800 | [diff] [blame] | 17 | return &dma_noop_ops; |
| 18 | } |
| 19 | |
| 20 | static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
| 21 | enum dma_data_direction direction) |
| 22 | { |
| 23 | } |
| 24 | |
| 25 | static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) |
| 26 | { |
| 27 | if (!dev->dma_mask) |
| 28 | return false; |
| 29 | return addr + size - 1 <= *dev->dma_mask; |
| 30 | } |
| 31 | |
| 32 | #endif /* _ASM_M32R_DMA_MAPPING_H */ |