| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_X86_DMA_MAPPING_H |
| #define _ASM_X86_DMA_MAPPING_H |
| |
| /* |
| * IOMMU interface. See Documentation/DMA-API-HOWTO.txt and |
| * Documentation/DMA-API.txt for documentation. |
| */ |
| |
| #include <linux/scatterlist.h> |
| #include <linux/dma-debug.h> |
| #include <asm/io.h> |
| #include <asm/swiotlb.h> |
| #include <linux/dma-contiguous.h> |
| |
| extern int iommu_merge; |
| extern int panic_on_overflow; |
| |
| extern const struct dma_map_ops *dma_ops; |
| |
| static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) |
| { |
| return dma_ops; |
| } |
| |
| #endif |
