| /* SPDX-License-Identifier: GPL-2.0 */ | |
| #ifndef _ASM_X86_DMA_MAPPING_H | |
| #define _ASM_X86_DMA_MAPPING_H | |
| /* | |
| * IOMMU interface. See Documentation/core-api/dma-api-howto.rst and | |
| * Documentation/core-api/dma-api.rst for documentation. | |
| */ | |
| #include <linux/scatterlist.h> | |
| #include <asm/io.h> | |
| #include <asm/swiotlb.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 |