Cregit: Linux 5.13: dma-mapping.h

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Glauber de Oliveira Costa	28	53.85%	3	30.00%
FUJITA Tomonori	15	28.85%	2	20.00%
Bart Van Assche	5	9.62%	2	20.00%
H. Peter Anvin	2	3.85%	1	10.00%
Greg Kroah-Hartman	1	1.92%	1	10.00%
Mauro Carvalho Chehab	1	1.92%	1	10.00%
Total	52		10

/* 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