| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_DMA_MAPPING_H |
| 3 | #define _ASM_DMA_MAPPING_H |
| 4 | |
| 5 | #include <linux/swiotlb.h> |
| 6 | |
| 7 | extern const struct dma_map_ops jazz_dma_ops; |
| 8 | |
| 9 | static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) |
| 10 | { |
| 11 | #if defined(CONFIG_MACH_JAZZ) |
| 12 | return &jazz_dma_ops; |
| 13 | #elif defined(CONFIG_SWIOTLB) |
| 14 | return &swiotlb_dma_ops; |
| 15 | #elif defined(CONFIG_DMA_NONCOHERENT_OPS) |
| 16 | return &dma_noncoherent_ops; |
| 17 | #else |
| 18 | return &dma_direct_ops; |
| 19 | #endif |
| 20 | } |
| 21 | |
| 22 | #define arch_setup_dma_ops arch_setup_dma_ops |
| 23 | static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, |
| 24 | u64 size, const struct iommu_ops *iommu, |
| 25 | bool coherent) |
| 26 | { |
| 27 | #ifdef CONFIG_DMA_PERDEV_COHERENT |
| 28 | dev->archdata.dma_coherent = coherent; |
| 29 | #endif |
| 30 | } |
| 31 | |
| 32 | #endif /* _ASM_DMA_MAPPING_H */ |