1#include <linux/dma-mapping.h>
 2
 3/* Set this to 1 if there is a HW IOMMU in the system */
 4int iommu_detected __read_mostly;
 5
 6struct dma_map_ops *dma_ops;
 7EXPORT_SYMBOL(dma_ops);
 8
 9#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
10
11static int __init dma_init(void)
12{
13	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
14
15	return 0;
16}
17fs_initcall(dma_init);
18
19struct dma_map_ops *dma_get_ops(struct device *dev)
20{
21	return dma_ops;
22}
23EXPORT_SYMBOL(dma_get_ops);