35 	.start	= 0,
43 	.start	= 0,
108 	unsigned long long start, end;  in r_show()  local
117 		start = r->start;  in r_show()
120 		start = end = 0;  in r_show()
125 			width, start,  in r_show()
132 	.start	= r_start,
186 	resource_size_t start = new->start;  in __request_resource()  local
190 	if (end < start)  in __request_resource()
192 	if (start < root->start)  in __request_resource()
199 		if (!tmp || tmp->start > end) {  in __request_resource()
206 		if (tmp->end < start)  in __request_resource()
259 		tmp->start = 0;  in __release_child_resources()
323  *			 [@start..@end].
326  * of the resource that's within [@start..@end]; if none is found, returns
329  * @start:	start address of the resource searched for
335  * The caller must specify @start, @end, @flags, and @desc
338 static int find_next_iomem_res(resource_size_t start, resource_size_t end,  in find_next_iomem_res()  argument
347 	if (start >= end)  in find_next_iomem_res()
354 		if (p->start > end) {  in find_next_iomem_res()
360 		if (p->end < start)  in find_next_iomem_res()
375 			.start = max(start, p->start),  in find_next_iomem_res()
387 static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end,  in __walk_iomem_res_desc()  argument
395 	while (start < end &&  in __walk_iomem_res_desc()
396 	       !find_next_iomem_res(start, end, flags, desc, &res)) {  in __walk_iomem_res_desc()
401 		start = res.end + 1;  in __walk_iomem_res_desc()
413  * @start: start addr
418  * All the memory ranges which overlap start,end and also match flags and
424 int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,  in walk_iomem_res_desc()  argument
427 	return __walk_iomem_res_desc(start, end, flags, desc, arg, func);  in walk_iomem_res_desc()
438 int walk_system_ram_res(u64 start, u64 end, void *arg,  in walk_system_ram_res()  argument
443 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_system_ram_res()
451 int walk_mem_res(u64 start, u64 end, void *arg,  in walk_mem_res()  argument
456 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_mem_res()
468 	resource_size_t start, end;  in walk_system_ram_range()  local
474 	start = (u64) start_pfn << PAGE_SHIFT;  in walk_system_ram_range()
477 	while (start < end &&  in walk_system_ram_range()
478 	       !find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res)) {  in walk_system_ram_range()
479 		pfn = PFN_UP(res.start);  in walk_system_ram_range()
485 		start = res.end + 1;  in walk_system_ram_range()
505 static int __region_intersects(resource_size_t start, size_t size,  in __region_intersects()  argument
512 	res.start = start;  in __region_intersects()
513 	res.end = start + size - 1;  in __region_intersects()
535  * @start: region start address
553 int region_intersects(resource_size_t start, size_t size, unsigned long flags,  in region_intersects()  argument
559 	ret = __region_intersects(start, size, flags, desc);  in region_intersects()
575 	return avail->start;  in simple_align_resource()
581 	if (res->start < min)  in resource_clip()
582 		res->start = min;  in resource_clip()
599 	tmp.start = root->start;  in __find_resource()
602 	 * of this->start - 1 to tmp->end below would cause an underflow.  in __find_resource()
604 	if (this && this->start == root->start) {  in __find_resource()
605 		tmp.start = (this == old) ? old->start : this->end + 1;  in __find_resource()
610 			tmp.end = (this == old) ?  this->end : this->start - 1;  in __find_resource()
614 		if (tmp.end < tmp.start)  in __find_resource()
621 		avail.start = ALIGN(tmp.start, constraint->align);  in __find_resource()
624 		if (avail.start >= tmp.start) {  in __find_resource()
626 			alloc.start = constraint->alignf(constraint->alignf_data, &avail,  in __find_resource()
628 			alloc.end = alloc.start + size - 1;  in __find_resource()
629 			if (alloc.start <= alloc.end &&  in __find_resource()
631 				new->start = alloc.start;  in __find_resource()
641 			tmp.start = this->end + 1;  in __find_resource()
681 		old->start = new.start;  in reallocate_resource()
692 		old->start = new.start;  in reallocate_resource()
756  * lookup_resource - find an existing resource by a resource start address
758  * @start: resource start address
762 struct resource *lookup_resource(struct resource *root, resource_size_t start)  in lookup_resource()  argument
768 		if (res->start == start)  in lookup_resource()
794 		if ((first->start > new->start) || (first->end < new->end))  in __insert_resource()
796 		if ((first->start == new->start) && (first->end == new->end))  in __insert_resource()
802 		if (next->start < new->start || next->end > new->end)  in __insert_resource()
806 		if (next->sibling->start > new->end)  in __insert_resource()
898 		if (conflict->start < new->start)  in insert_resource_expand_to_fit()
899 			new->start = conflict->start;  in insert_resource_expand_to_fit()
934 static int __adjust_resource(struct resource *res, resource_size_t start,  in __adjust_resource()  argument
938 	resource_size_t end = start + size - 1;  in __adjust_resource()
944 	if ((start < parent->start) || (end > parent->end))  in __adjust_resource()
947 	if (res->sibling && (res->sibling->start <= end))  in __adjust_resource()
954 		if (start <= tmp->end)  in __adjust_resource()
960 		if ((tmp->start < start) || (tmp->end > end))  in __adjust_resource()
963 	res->start = start;  in __adjust_resource()
972  * adjust_resource - modify a resource's start and size
974  * @start: new start value
977  * Given an existing resource, change its start and size to match the
981 int adjust_resource(struct resource *res, resource_size_t start,  in adjust_resource()  argument
987 	result = __adjust_resource(res, start, size);  in adjust_resource()
994 __reserve_region_with_split(struct resource *root, resource_size_t start,  in __reserve_region_with_split()  argument
1007 	res->start = start;  in __reserve_region_with_split()
1024 		if (conflict->start <= res->start &&  in __reserve_region_with_split()
1032 		if (conflict->start > res->start) {  in __reserve_region_with_split()
1034 			res->end = conflict->start - 1;  in __reserve_region_with_split()
1042 				next_res->start = conflict->end + 1;  in __reserve_region_with_split()
1048 			res->start = conflict->end + 1;  in __reserve_region_with_split()
1055 reserve_region_with_split(struct resource *root, resource_size_t start,  in reserve_region_with_split()  argument
1061 	if (root->start > start || root->end < end) {  in reserve_region_with_split()
1063 		       (unsigned long long)start, (unsigned long long)end,  in reserve_region_with_split()
1065 		if (start > root->end || end < root->start)  in reserve_region_with_split()
1070 			if (start < root->start)  in reserve_region_with_split()
1071 				start = root->start;  in reserve_region_with_split()
1073 			       (unsigned long long)start,  in reserve_region_with_split()
1079 		__reserve_region_with_split(root, start, end, name);  in reserve_region_with_split()
1095 		return res->start;  in resource_alignment()
1134 	 * should start returning false, however for performance this  in revoke_iomem()
1137 	if (devmem_is_allowed(PHYS_PFN(res->start)) &&  in revoke_iomem()
1146 	unmap_mapping_range(inode->i_mapping, res->start, resource_size(res), 1);  in revoke_iomem()
1164 				   resource_size_t start, resource_size_t n,  in __request_region_locked()  argument
1170 	res->start = start;  in __request_region_locked()
1171 	res->end = start + n - 1;  in __request_region_locked()
1217  * @start: resource start address
1223 				  resource_size_t start, resource_size_t n,  in __request_region()  argument
1233 	ret = __request_region_locked(res, parent, start, n, name, flags);  in __request_region()
1251  * @start: resource start address
1256 void __release_region(struct resource *parent, resource_size_t start,  in __release_region()  argument
1263 	end = start + n - 1;  in __release_region()
1272 		if (res->start <= start && res->end >= end) {  in __release_region()
1277 			if (res->start != start || res->end != end)  in __release_region()
1292 		"<%016llx-%016llx>\n", (unsigned long long)start,  in __release_region()
1300  * @start: resource start address
1317 void release_mem_region_adjustable(resource_size_t start, resource_size_t size)  in release_mem_region_adjustable()  argument
1326 	end = start + size - 1;  in release_mem_region_adjustable()
1327 	if (WARN_ON_ONCE((start < parent->start) || (end > parent->end)))  in release_mem_region_adjustable()
1344 		if (res->start >= end)  in release_mem_region_adjustable()
1348 		if (res->start > start || res->end < end) {  in release_mem_region_adjustable()
1376 		if (res->start == start && res->end == end) {  in release_mem_region_adjustable()
1380 		} else if (res->start == start && res->end != end) {  in release_mem_region_adjustable()
1381 			/* adjust the start */  in release_mem_region_adjustable()
1384 		} else if (res->start != start && res->end == end) {  in release_mem_region_adjustable()
1386 			WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1387 						       start - res->start));  in release_mem_region_adjustable()
1399 			new_res->start = end + 1;  in release_mem_region_adjustable()
1407 			if (WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1408 							   start - res->start)))  in release_mem_region_adjustable()
1427 	return r1->flags == r2->flags && r1->end + 1 == r2->start &&  in system_ram_resources_mergeable()
1557 	resource_size_t start;  member
1565 	__release_region(this->parent, this->start, this->n);  in devm_region_release()
1573 		this->start == match->start && this->n == match->n;  in devm_region_match()
1578 		      resource_size_t start, resource_size_t n, const char *name)  in __devm_request_region()  argument
1589 	dr->start = start;  in __devm_request_region()
1592 	res = __request_region(parent, start, n, name, 0);  in __devm_request_region()
1603 			   resource_size_t start, resource_size_t n)  in __devm_release_region()  argument
1605 	struct region_devres match_data = { parent, start, n };  in __devm_release_region()
1607 	__release_region(parent, start, n);  in __devm_release_region()
1646 			res->start = io_start;  in reserve_setup()
1675 		if (p->start >= addr + size)  in iomem_map_sanity_check()
1679 		if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&  in iomem_map_sanity_check()
1731 		if (p->start >= addr + size)  in iomem_is_exclusive()
1803 	for (; addr > size && addr >= base->start; addr -= size) {  in __request_free_mem_region()
1814 			dr->start = addr;  in __request_free_mem_region()