diff options
Diffstat (limited to 'include/linux/iommu.h')
| -rw-r--r-- | include/linux/iommu.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/include/linux/iommu.h b/include/linux/iommu.h index 7cfd2dddb49d..4e3cd32f5b37 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -53,8 +53,6 @@ struct iommu_fault_event; typedef int (*iommu_fault_handler_t)(struct iommu_domain *, struct device *, unsigned long, int, void *); -typedef int (*iommu_mm_exit_handler_t)(struct device *dev, struct iommu_sva *, - void *); typedef int (*iommu_dev_fault_handler_t)(struct iommu_fault *, void *); struct iommu_domain_geometry { @@ -171,25 +169,6 @@ enum iommu_dev_features { #define IOMMU_PASID_INVALID (-1U) -/** - * struct iommu_sva_ops - device driver callbacks for an SVA context - * - * @mm_exit: called when the mm is about to be torn down by exit_mmap. After - * @mm_exit returns, the device must not issue any more transaction - * with the PASID given as argument. - * - * The @mm_exit handler is allowed to sleep. Be careful about the - * locks taken in @mm_exit, because they might lead to deadlocks if - * they are also held when dropping references to the mm. Consider the - * following call chain: - * mutex_lock(A); mmput(mm) -> exit_mm() -> @mm_exit() -> mutex_lock(A) - * Using mmput_async() prevents this scenario. - * - */ -struct iommu_sva_ops { - iommu_mm_exit_handler_t mm_exit; -}; - #ifdef CONFIG_IOMMU_API /** @@ -482,8 +461,6 @@ extern void iommu_get_resv_regions(struct device *dev, struct list_head *list); extern void iommu_put_resv_regions(struct device *dev, struct list_head *list); extern void generic_iommu_put_resv_regions(struct device *dev, struct list_head *list); -extern int iommu_request_dm_for_dev(struct device *dev); -extern int iommu_request_dma_domain_for_dev(struct device *dev); extern void iommu_set_default_passthrough(bool cmd_line); extern void iommu_set_default_translated(bool cmd_line); extern bool iommu_default_passthrough(void); @@ -616,7 +593,6 @@ struct iommu_fwspec { */ struct iommu_sva { struct device *dev; - const struct iommu_sva_ops *ops; }; int iommu_fwspec_init(struct device *dev, struct fwnode_handle *iommu_fwnode, @@ -664,8 +640,6 @@ struct iommu_sva *iommu_sva_bind_device(struct device *dev, struct mm_struct *mm, void *drvdata); void iommu_sva_unbind_device(struct iommu_sva *handle); -int iommu_sva_set_ops(struct iommu_sva *handle, - const struct iommu_sva_ops *ops); int iommu_sva_get_pasid(struct iommu_sva *handle); #else /* CONFIG_IOMMU_API */ @@ -804,16 +778,6 @@ static inline int iommu_get_group_resv_regions(struct iommu_group *group, return -ENODEV; } -static inline int iommu_request_dm_for_dev(struct device *dev) -{ - return -ENODEV; -} - -static inline int iommu_request_dma_domain_for_dev(struct device *dev) -{ - return -ENODEV; -} - static inline void iommu_set_default_passthrough(bool cmd_line) { } @@ -1069,12 +1033,6 @@ static inline void iommu_sva_unbind_device(struct iommu_sva *handle) { } -static inline int iommu_sva_set_ops(struct iommu_sva *handle, - const struct iommu_sva_ops *ops) -{ - return -EINVAL; -} - static inline int iommu_sva_get_pasid(struct iommu_sva *handle) { return IOMMU_PASID_INVALID; |