Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/dma-direct.h>
3#include <linux/export.h>
4
5/* Set this to 1 if there is a HW IOMMU in the system */
6int iommu_detected __read_mostly;
7
8const struct dma_map_ops *dma_ops;
9EXPORT_SYMBOL(dma_ops);
10
11void *arch_dma_alloc(struct device *dev, size_t size,
12 dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
13{
14 return dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs);
15}
16
17void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
18 dma_addr_t dma_addr, unsigned long attrs)
19{
20 dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
21}