11 			 struct hns_roce_db *db)  in hns_roce_db_map_user()  argument
44 	db->dma = sg_dma_address(page->umem->sgt_append.sgt.sgl) + offset;  in hns_roce_db_map_user()
45 	db->virt_addr = sg_virt(page->umem->sgt_append.sgt.sgl) + offset;  in hns_roce_db_map_user()
46 	db->u.user_page = page;  in hns_roce_db_map_user()
56 			    struct hns_roce_db *db)  in hns_roce_db_unmap_user()  argument
60 	refcount_dec(&db->u.user_page->refcount);  in hns_roce_db_unmap_user()
61 	if (refcount_dec_if_one(&db->u.user_page->refcount)) {  in hns_roce_db_unmap_user()
62 		list_del(&db->u.user_page->list);  in hns_roce_db_unmap_user()
63 		ib_umem_release(db->u.user_page->umem);  in hns_roce_db_unmap_user()
64 		kfree(db->u.user_page);  in hns_roce_db_unmap_user()
94 					struct hns_roce_db *db, int order)  in hns_roce_alloc_db_from_pgdir()  argument
115 	db->u.pgdir	= pgdir;  in hns_roce_alloc_db_from_pgdir()
116 	db->index	= i;  in hns_roce_alloc_db_from_pgdir()
117 	db->db_record	= pgdir->page + db->index;  in hns_roce_alloc_db_from_pgdir()
118 	db->dma		= pgdir->db_dma  + db->index * HNS_ROCE_DB_UNIT_SIZE;  in hns_roce_alloc_db_from_pgdir()
119 	db->order	= order;  in hns_roce_alloc_db_from_pgdir()
124 int hns_roce_alloc_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db,  in hns_roce_alloc_db()  argument
133 		if (!hns_roce_alloc_db_from_pgdir(pgdir, db, order))  in hns_roce_alloc_db()
145 	WARN_ON(hns_roce_alloc_db_from_pgdir(pgdir, db, order));  in hns_roce_alloc_db()
153 void hns_roce_free_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db)  in hns_roce_free_db()  argument
160 	o = db->order;  in hns_roce_free_db()
161 	i = db->index;  in hns_roce_free_db()
163 	if (db->order == 0 && test_bit(i ^ 1, db->u.pgdir->order0)) {  in hns_roce_free_db()
164 		clear_bit(i ^ 1, db->u.pgdir->order0);  in hns_roce_free_db()
169 	set_bit(i, db->u.pgdir->bits[o]);  in hns_roce_free_db()
171 	if (bitmap_full(db->u.pgdir->order1,  in hns_roce_free_db()
173 		dma_free_coherent(hr_dev->dev, PAGE_SIZE, db->u.pgdir->page,  in hns_roce_free_db()
174 				  db->u.pgdir->db_dma);  in hns_roce_free_db()
175 		list_del(&db->u.pgdir->list);  in hns_roce_free_db()
176 		kfree(db->u.pgdir);  in hns_roce_free_db()