137 				      struct hns_roce_hem_iter *iter)  in hns_roce_hem_first()  argument
139 	iter->hem = hem;  in hns_roce_hem_first()
140 	iter->chunk = list_empty(&hem->chunk_list) ? NULL :  in hns_roce_hem_first()
143 	iter->page_idx = 0;  in hns_roce_hem_first()
146 static inline int hns_roce_hem_last(struct hns_roce_hem_iter *iter)  in hns_roce_hem_last()  argument
148 	return !iter->chunk;  in hns_roce_hem_last()
151 static inline void hns_roce_hem_next(struct hns_roce_hem_iter *iter)  in hns_roce_hem_next()  argument
153 	if (++iter->page_idx >= iter->chunk->nsg) {  in hns_roce_hem_next()
154 		if (iter->chunk->list.next == &iter->hem->chunk_list) {  in hns_roce_hem_next()
155 			iter->chunk = NULL;  in hns_roce_hem_next()
159 		iter->chunk = list_entry(iter->chunk->list.next,  in hns_roce_hem_next()
161 		iter->page_idx = 0;  in hns_roce_hem_next()
165 static inline dma_addr_t hns_roce_hem_addr(struct hns_roce_hem_iter *iter)  in hns_roce_hem_addr()  argument
167 	return sg_dma_address(&iter->chunk->mem[iter->page_idx]);  in hns_roce_hem_addr()