Cregit: dma-mapping.c

Contributors: 5
Author	Tokens	Token Proportion	Commits	Commit Proportion
FUJITA Tomonori	38	54.29%	4	50.00%
Christoph Hellwig	26	37.14%	1	12.50%
Paul Gortmaker	3	4.29%	1	12.50%
Bart Van Assche	2	2.86%	1	12.50%
Greg Kroah-Hartman	1	1.43%	1	12.50%
Total	70		8

// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-mapping.h>
#include <linux/swiotlb.h>
#include <linux/export.h>

/* Set this to 1 if there is a HW IOMMU in the system */
int iommu_detected __read_mostly;

const struct dma_map_ops *dma_ops;
EXPORT_SYMBOL(dma_ops);

const struct dma_map_ops *dma_get_ops(struct device *dev)
{
	return dma_ops;
}
EXPORT_SYMBOL(dma_get_ops);

#ifdef CONFIG_SWIOTLB
void __init swiotlb_dma_init(void)
{
	dma_ops = &swiotlb_dma_ops;
	swiotlb_init(1);
}
#endif