projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 LT |
2 | #ifndef _ASM_DMA_MAPPING_H |
| 3 | #define _ASM_DMA_MAPPING_H | |
| 4 | ||
| 84be456f | 5 | #include <linux/scatterlist.h> |
| b6d92b4a | 6 | #include <asm/dma-coherence.h> |
| 1da177e4 LT |
7 | #include <asm/cache.h> |
| 8 | ||
| 70342287 | 9 | #ifndef CONFIG_SGI_IP27 /* Kludge to fix 2.6.39 build for IP27 */ |
| 48e1fd5a | 10 | #include <dma-coherence.h> |
| a5602a32 | 11 | #endif |
| 1da177e4 | 12 | |
| 5299709d | 13 | extern const struct dma_map_ops *mips_dma_map_ops; |
| 1da177e4 | 14 | |
| 815dd187 | 15 | static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) |
| 48e1fd5a | 16 | { |
| 815dd187 | 17 | return mips_dma_map_ops; |
| 48e1fd5a | 18 | } |
| 1da177e4 | 19 | |
| 48e1fd5a DD |
20 | static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) |
| 21 | { | |
| 22 | if (!dev->dma_mask) | |
| 3db27425 | 23 | return false; |
| 1da177e4 | 24 | |
| 48e1fd5a DD |
25 | return addr + size <= *dev->dma_mask; |
| 26 | } | |
| 27 | ||
| 28 | static inline void dma_mark_clean(void *addr, size_t size) {} | |
| 29 | ||
| d3fa72e4 | 30 | extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |
| 1da177e4 LT |
31 | enum dma_data_direction direction); |
| 32 | ||
| 20d33064 PB |
33 | #define arch_setup_dma_ops arch_setup_dma_ops |
| 34 | static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, | |
| 35 | u64 size, const struct iommu_ops *iommu, | |
| 36 | bool coherent) | |
| 37 | { | |
| 38 | #ifdef CONFIG_DMA_PERDEV_COHERENT | |
| 39 | dev->archdata.dma_coherent = coherent; | |
| 40 | #endif | |
| 41 | } | |
| 42 | ||
| 1da177e4 | 43 | #endif /* _ASM_DMA_MAPPING_H */ |