| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_X86_DMA_MAPPING_H |
| 3 | #define _ASM_X86_DMA_MAPPING_H |
| 4 | |
| 5 | /* |
| Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 6 | * IOMMU interface. See Documentation/core-api/dma-api-howto.rst and |
| 7 | * Documentation/core-api/dma-api.rst for documentation. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | #include <linux/scatterlist.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 11 | #include <asm/io.h> |
| 12 | #include <asm/swiotlb.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 13 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 14 | extern int iommu_merge; |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 15 | extern int panic_on_overflow; |
| 16 | |
| 17 | extern const struct dma_map_ops *dma_ops; |
| 18 | |
| 19 | static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) |
| 20 | { |
| 21 | return dma_ops; |
| 22 | } |
| 23 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 24 | #endif |