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 const struct iommu_ops *of_iommu_configure(struct device *dev,
  12                                         struct device_node *master_np,
  13                                         const u32 *id);
  14
  15 extern void of_iommu_get_resv_regions(struct device *dev,
  16                                       struct list_head *list);
  17
  18 #else
  19
  20 static inline const struct iommu_ops *of_iommu_configure(struct device *dev,
  21                                          struct device_node *master_np,
  22                                          const u32 *id)
  23 {
  24         return NULL;
  25 }
  26
  27 static inline void of_iommu_get_resv_regions(struct device *dev,
  28                                              struct list_head *list)
  29 {
  30 }
  31
  32 #endif  /* CONFIG_OF_IOMMU */
  33
  34 #endif /* __OF_IOMMU_H */