include/linux/of_iommu.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __OF_IOMMU_H
   3 #define __OF_IOMMU_H
   4
   5 struct device;
   6 struct device_node;
   7 struct iommu_ops;
   8
   9 #ifdef CONFIG_OF_IOMMU
  10
  11 extern int of_iommu_configure(struct device *dev, struct device_node *master_np,
  12                               const u32 *id);
  13
  14 extern void of_iommu_get_resv_regions(struct device *dev,
  15                                       struct list_head *list);
  16
  17 #else
  18
  19 static inline int of_iommu_configure(struct device *dev,
  20                                      struct device_node *master_np,
  21                                      const u32 *id)
  22 {
  23         return -ENODEV;
  24 }
  25
  26 static inline void of_iommu_get_resv_regions(struct device *dev,
  27                                              struct list_head *list)
  28 {
  29 }
  30
  31 #endif  /* CONFIG_OF_IOMMU */
  32
  33 #endif /* __OF_IOMMU_H */