arch/ia64/kernel/dma-mapping.c

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