arch/ia64/kernel/dma-mapping.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/dma-mapping.h>
   3 #include <linux/export.h>
   4
   5 /* Set this to 1 if there is a HW IOMMU in the system */
   6 int iommu_detected __read_mostly;
   7
   8 const struct dma_map_ops *dma_ops;
   9 EXPORT_SYMBOL(dma_ops);
  10
  11 #define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
  12
  13 static int __init dma_init(void)
  14 {
  15         dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
  16
  17         return 0;
  18 }
  19 fs_initcall(dma_init);
  20
  21 const struct dma_map_ops *dma_get_ops(struct device *dev)
  22 {
  23         return dma_ops;
  24 }
  25 EXPORT_SYMBOL(dma_get_ops);