35 	.start	= 0,
43 	.start	= 0,
112 	unsigned long long start, end;  in r_show()  local
121 		start = r->start;  in r_show()
124 		start = end = 0;  in r_show()
129 			width, start,  in r_show()
136 	.start	= r_start,
173 	resource_size_t start = new->start;  in __request_resource()  local
177 	if (end < start)  in __request_resource()
179 	if (start < root->start)  in __request_resource()
186 		if (!tmp || tmp->start > end) {  in __request_resource()
193 		if (tmp->end < start)  in __request_resource()
246 		tmp->start = 0;  in __release_child_resources()
325 static int find_next_iomem_res(resource_size_t start, resource_size_t end,  in find_next_iomem_res()  argument
334 	if (start >= end)  in find_next_iomem_res()
341 		if (p->start > end) {  in find_next_iomem_res()
347 		if (p->end < start)  in find_next_iomem_res()
362 			.start = max(start, p->start),  in find_next_iomem_res()
374 static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end,  in __walk_iomem_res_desc()  argument
382 	while (start < end &&  in __walk_iomem_res_desc()
383 	       !find_next_iomem_res(start, end, flags, desc, &res)) {  in __walk_iomem_res_desc()
388 		start = res.end + 1;  in __walk_iomem_res_desc()
411 int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,  in walk_iomem_res_desc()  argument
414 	return __walk_iomem_res_desc(start, end, flags, desc, arg, func);  in walk_iomem_res_desc()
425 int walk_system_ram_res(u64 start, u64 end, void *arg,  in walk_system_ram_res()  argument
430 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_system_ram_res()
438 int walk_mem_res(u64 start, u64 end, void *arg,  in walk_mem_res()  argument
443 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_mem_res()
455 	resource_size_t start, end;  in walk_system_ram_range()  local
461 	start = (u64) start_pfn << PAGE_SHIFT;  in walk_system_ram_range()
464 	while (start < end &&  in walk_system_ram_range()
465 	       !find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res)) {  in walk_system_ram_range()
466 		pfn = PFN_UP(res.start);  in walk_system_ram_range()
472 		start = res.end + 1;  in walk_system_ram_range()
492 static int __region_intersects(struct resource *parent, resource_size_t start,  in __region_intersects()  argument
500 	res.start = start;  in __region_intersects()
501 	res.end = start + size - 1;  in __region_intersects()
541 int region_intersects(resource_size_t start, size_t size, unsigned long flags,  in region_intersects()  argument
547 	ret = __region_intersects(&iomem_resource, start, size, flags, desc);  in region_intersects()
563 	return avail->start;  in simple_align_resource()
569 	if (res->start < min)  in resource_clip()
570 		res->start = min;  in resource_clip()
587 	tmp.start = root->start;  in __find_resource()
592 	if (this && this->start == root->start) {  in __find_resource()
593 		tmp.start = (this == old) ? old->start : this->end + 1;  in __find_resource()
598 			tmp.end = (this == old) ?  this->end : this->start - 1;  in __find_resource()
602 		if (tmp.end < tmp.start)  in __find_resource()
609 		avail.start = ALIGN(tmp.start, constraint->align);  in __find_resource()
612 		if (avail.start >= tmp.start) {  in __find_resource()
614 			alloc.start = constraint->alignf(constraint->alignf_data, &avail,  in __find_resource()
616 			alloc.end = alloc.start + size - 1;  in __find_resource()
617 			if (alloc.start <= alloc.end &&  in __find_resource()
619 				new->start = alloc.start;  in __find_resource()
629 			tmp.start = this->end + 1;  in __find_resource()
669 		old->start = new.start;  in reallocate_resource()
680 		old->start = new.start;  in reallocate_resource()
750 struct resource *lookup_resource(struct resource *root, resource_size_t start)  in lookup_resource()  argument
756 		if (res->start == start)  in lookup_resource()
782 		if ((first->start > new->start) || (first->end < new->end))  in __insert_resource()
784 		if ((first->start == new->start) && (first->end == new->end))  in __insert_resource()
790 		if (next->start < new->start || next->end > new->end)  in __insert_resource()
794 		if (next->sibling->start > new->end)  in __insert_resource()
886 		if (conflict->start < new->start)  in insert_resource_expand_to_fit()
887 			new->start = conflict->start;  in insert_resource_expand_to_fit()
929 static int __adjust_resource(struct resource *res, resource_size_t start,  in __adjust_resource()  argument
933 	resource_size_t end = start + size - 1;  in __adjust_resource()
939 	if ((start < parent->start) || (end > parent->end))  in __adjust_resource()
942 	if (res->sibling && (res->sibling->start <= end))  in __adjust_resource()
949 		if (start <= tmp->end)  in __adjust_resource()
955 		if ((tmp->start < start) || (tmp->end > end))  in __adjust_resource()
958 	res->start = start;  in __adjust_resource()
976 int adjust_resource(struct resource *res, resource_size_t start,  in adjust_resource()  argument
982 	result = __adjust_resource(res, start, size);  in adjust_resource()
989 __reserve_region_with_split(struct resource *root, resource_size_t start,  in __reserve_region_with_split()  argument
1002 	res->start = start;  in __reserve_region_with_split()
1019 		if (conflict->start <= res->start &&  in __reserve_region_with_split()
1027 		if (conflict->start > res->start) {  in __reserve_region_with_split()
1029 			res->end = conflict->start - 1;  in __reserve_region_with_split()
1037 				next_res->start = conflict->end + 1;  in __reserve_region_with_split()
1043 			res->start = conflict->end + 1;  in __reserve_region_with_split()
1050 reserve_region_with_split(struct resource *root, resource_size_t start,  in reserve_region_with_split()  argument
1056 	if (root->start > start || root->end < end) {  in reserve_region_with_split()
1058 		       (unsigned long long)start, (unsigned long long)end,  in reserve_region_with_split()
1060 		if (start > root->end || end < root->start)  in reserve_region_with_split()
1065 			if (start < root->start)  in reserve_region_with_split()
1066 				start = root->start;  in reserve_region_with_split()
1068 			       (unsigned long long)start,  in reserve_region_with_split()
1074 		__reserve_region_with_split(root, start, end, name);  in reserve_region_with_split()
1090 		return res->start;  in resource_alignment()
1132 	if (devmem_is_allowed(PHYS_PFN(res->start)) &&  in revoke_iomem()
1141 	unmap_mapping_range(inode->i_mapping, res->start, resource_size(res), 1);  in revoke_iomem()
1159 				   resource_size_t start, resource_size_t n,  in __request_region_locked()  argument
1165 	res->start = start;  in __request_region_locked()
1166 	res->end = start + n - 1;  in __request_region_locked()
1218 				  resource_size_t start, resource_size_t n,  in __request_region()  argument
1228 	ret = __request_region_locked(res, parent, start, n, name, flags);  in __request_region()
1251 void __release_region(struct resource *parent, resource_size_t start,  in __release_region()  argument
1258 	end = start + n - 1;  in __release_region()
1267 		if (res->start <= start && res->end >= end) {  in __release_region()
1272 			if (res->start != start || res->end != end)  in __release_region()
1286 	pr_warn("Trying to free nonexistent resource <%pa-%pa>\n", &start, &end);  in __release_region()
1310 void release_mem_region_adjustable(resource_size_t start, resource_size_t size)  in release_mem_region_adjustable()  argument
1319 	end = start + size - 1;  in release_mem_region_adjustable()
1320 	if (WARN_ON_ONCE((start < parent->start) || (end > parent->end)))  in release_mem_region_adjustable()
1337 		if (res->start >= end)  in release_mem_region_adjustable()
1341 		if (res->start > start || res->end < end) {  in release_mem_region_adjustable()
1355 		if (res->start == start && res->end == end) {  in release_mem_region_adjustable()
1359 		} else if (res->start == start && res->end != end) {  in release_mem_region_adjustable()
1363 		} else if (res->start != start && res->end == end) {  in release_mem_region_adjustable()
1365 			WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1366 						       start - res->start));  in release_mem_region_adjustable()
1378 			new_res->start = end + 1;  in release_mem_region_adjustable()
1386 			if (WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1387 							   start - res->start)))  in release_mem_region_adjustable()
1406 	return r1->flags == r2->flags && r1->end + 1 == r2->start &&  in system_ram_resources_mergeable()
1536 	resource_size_t start;  member
1544 	__release_region(this->parent, this->start, this->n);  in devm_region_release()
1552 		this->start == match->start && this->n == match->n;  in devm_region_match()
1557 		      resource_size_t start, resource_size_t n, const char *name)  in __devm_request_region()  argument
1568 	dr->start = start;  in __devm_request_region()
1571 	res = __request_region(parent, start, n, name, 0);  in __devm_request_region()
1582 			   resource_size_t start, resource_size_t n)  in __devm_release_region()  argument
1584 	struct region_devres match_data = { parent, start, n };  in __devm_release_region()
1586 	__release_region(parent, start, n);  in __devm_release_region()
1625 			res->start = io_start;  in reserve_setup()
1655 		if (p->start > end)  in iomem_map_sanity_check()
1659 		if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&  in iomem_map_sanity_check()
1702 		if (p->start >= addr + size)  in resource_is_exclusive()
1786 	return ALIGN(base->start, align);  in gfr_start()
1793 		return addr > size && addr >= base->start;  in gfr_continue()
1863 				dr->start = addr;  in get_free_mem_region()
1878 			res->start = addr;  in get_free_mem_region()