diff options
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 436dc21318af..0ff5111f6959 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -253,6 +253,7 @@ extern void iommu_group_remove_device(struct device *dev); extern int iommu_group_for_each_dev(struct iommu_group *group, void *data, int (*fn)(struct device *, void *)); extern struct iommu_group *iommu_group_get(struct device *dev); +extern struct iommu_group *iommu_group_ref_get(struct iommu_group *group); extern void iommu_group_put(struct iommu_group *group); extern int iommu_group_register_notifier(struct iommu_group *group, struct notifier_block *nb); @@ -351,6 +352,9 @@ int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, const struct iommu_ops *ops); void iommu_fwspec_free(struct device *dev); int iommu_fwspec_add_ids(struct device *dev, u32 *ids, int num_ids); +void iommu_register_instance(struct fwnode_handle *fwnode, + const struct iommu_ops *ops); +const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode); #else /* CONFIG_IOMMU_API */ @@ -580,6 +584,17 @@ static inline int iommu_fwspec_add_ids(struct device *dev, u32 *ids, return -ENODEV; } +static inline void iommu_register_instance(struct fwnode_handle *fwnode, + const struct iommu_ops *ops) +{ +} + +static inline +const struct iommu_ops *iommu_get_instance(struct fwnode_handle *fwnode) +{ + return NULL; +} + #endif /* CONFIG_IOMMU_API */ #endif /* __LINUX_IOMMU_H */ |
