25 lines
519 B
C
25 lines
519 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_DMA_MAPPING_H
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#define _ASM_X86_DMA_MAPPING_H
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/*
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* IOMMU interface. See Documentation/core-api/dma-api-howto.rst and
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* Documentation/core-api/dma-api.rst for documentation.
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*/
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#include <linux/scatterlist.h>
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#include <asm/io.h>
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#include <asm/swiotlb.h>
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extern int iommu_merge;
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extern int panic_on_overflow;
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extern const struct dma_map_ops *dma_ops;
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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{
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return dma_ops;
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}
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#endif
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