44 #define mk_qpn(qpt, map, off)	(((map) - (qpt)->map) * BITS_PER_PAGE + \  argument
46 #define find_next_offset(map, off) find_next_zero_bit((map)->page, \  argument
87 static void get_map_page(struct ipath_qp_table *qpt, struct qpn_map *map)  in get_map_page()  argument
97 	if (map->page)  in get_map_page()
100 		map->page = (void *)page;  in get_map_page()
108 	struct qpn_map *map;  in alloc_qpn()  local
117 		map = &qpt->map[0];  in alloc_qpn()
118 		if (unlikely(!map->page)) {  in alloc_qpn()
119 			get_map_page(qpt, map);  in alloc_qpn()
120 			if (unlikely(!map->page)) {  in alloc_qpn()
125 		if (!test_and_set_bit(ret, map->page))  in alloc_qpn()
126 			atomic_dec(&map->n_free);  in alloc_qpn()
136 	map = &qpt->map[qpn / BITS_PER_PAGE];  in alloc_qpn()
139 		if (unlikely(!map->page)) {  in alloc_qpn()
140 			get_map_page(qpt, map);  in alloc_qpn()
141 			if (unlikely(!map->page))  in alloc_qpn()
144 		if (likely(atomic_read(&map->n_free))) {  in alloc_qpn()
146 				if (!test_and_set_bit(offset, map->page)) {  in alloc_qpn()
147 					atomic_dec(&map->n_free);  in alloc_qpn()
152 				offset = find_next_offset(map, offset);  in alloc_qpn()
153 				qpn = mk_qpn(qpt, map, offset);  in alloc_qpn()
172 			map = &qpt->map[qpt->nmaps++];  in alloc_qpn()
174 		} else if (map < &qpt->map[qpt->nmaps]) {  in alloc_qpn()
175 			++map;  in alloc_qpn()
178 			map = &qpt->map[0];  in alloc_qpn()
181 		qpn = mk_qpn(qpt, map, offset);  in alloc_qpn()
192 	struct qpn_map *map;  in free_qpn()  local
194 	map = qpt->map + qpn / BITS_PER_PAGE;  in free_qpn()
195 	if (map->page)  in free_qpn()
196 		clear_bit(qpn & BITS_PER_PAGE_MASK, map->page);  in free_qpn()
197 	atomic_inc(&map->n_free);  in free_qpn()
287 	for (n = 0; n < ARRAY_SIZE(qpt->map); n++)  in ipath_free_all_qps()
288 		if (qpt->map[n].page)  in ipath_free_all_qps()
289 			free_page((unsigned long) qpt->map[n].page);  in ipath_free_all_qps()
1037 	for (i = 0; i < ARRAY_SIZE(idev->qp_table.map); i++) {  in ipath_init_qp_table()
1038 		atomic_set(&idev->qp_table.map[i].n_free, BITS_PER_PAGE);  in ipath_init_qp_table()
1039 		idev->qp_table.map[i].page = NULL;  in ipath_init_qp_table()