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48 #ifndef _HFI1_MMU_RB_H
49 #define _HFI1_MMU_RB_H
58 struct mmu_rb_handler *handler;
59 struct list_head list;
64 * NOTE: filter, insert, invalidate, and evict must not sleep. Only remove is
68 bool (*filter)(struct mmu_rb_node *node, unsigned long addr,
70 int (*insert)(void *ops_arg, struct mmu_rb_node *mnode);
71 void (*remove)(void *ops_arg, struct mmu_rb_node *mnode);
72 int (*invalidate)(void *ops_arg, struct mmu_rb_node *node);
73 int (*evict)(void *ops_arg, struct mmu_rb_node *mnode,
74 void *evict_arg, bool *stop);
77 struct mmu_rb_handler {
78 struct mmu_notifier mn;
79 struct rb_root_cached root;
81 spinlock_t lock; /* protect the RB tree */
82 struct mmu_rb_ops *ops;
83 struct list_head lru_list;
84 struct work_struct del_work;
85 struct list_head del_list;
86 struct workqueue_struct *wq;
89 int hfi1_mmu_rb_register(void *ops_arg,
90 struct mmu_rb_ops *ops,
91 struct workqueue_struct *wq,
92 struct mmu_rb_handler **handler);
93 void hfi1_mmu_rb_unregister(struct mmu_rb_handler *handler);
94 int hfi1_mmu_rb_insert(struct mmu_rb_handler *handler,
95 struct mmu_rb_node *mnode);
96 void hfi1_mmu_rb_release(struct kref *refcount);
98 void hfi1_mmu_rb_evict(struct mmu_rb_handler *handler, void *evict_arg);
99 struct mmu_rb_node *hfi1_mmu_rb_get_first(struct mmu_rb_handler *handler,
103 #endif /* _HFI1_MMU_RB_H */