Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Christoph Hellwig |
124 |
74.25% |
2 |
22.22% |
| FUJITA Tomonori |
37 |
22.16% |
4 |
44.44% |
| Paul Gortmaker |
3 |
1.80% |
1 |
11.11% |
| Bart Van Assche |
2 |
1.20% |
1 |
11.11% |
| Greg Kroah-Hartman |
1 |
0.60% |
1 |
11.11% |
| Total |
167 |
|
9 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/dma-direct.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 *arch_dma_alloc(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
{
return dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs);
}
void arch_dma_free(struct device *dev, size_t size, void *cpu_addr,
dma_addr_t dma_addr, unsigned long attrs)
{
dma_direct_free_pages(dev, size, cpu_addr, dma_addr, attrs);
}
long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr,
dma_addr_t dma_addr)
{
return page_to_pfn(virt_to_page(cpu_addr));
}
void __init swiotlb_dma_init(void)
{
swiotlb_init(1);
}
#endif