/* 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