37 	.start	= 0,
45 	.start	= 0,
104 	unsigned long long start, end;  in r_show()  local
113 		start = r->start;  in r_show()
116 		start = end = 0;  in r_show()
121 			width, start,  in r_show()
128 	.start	= r_start,
165 	resource_size_t start = new->start;  in __request_resource()  local
169 	if (end < start)  in __request_resource()
171 	if (start < root->start)  in __request_resource()
178 		if (!tmp || tmp->start > end) {  in __request_resource()
185 		if (tmp->end < start)  in __request_resource()
238 		tmp->start = 0;  in __release_child_resources()
302  *			 [@start..@end].
305  * of the resource that's within [@start..@end]; if none is found, returns
308  * @start:	start address of the resource searched for
314  * The caller must specify @start, @end, @flags, and @desc
317 static int find_next_iomem_res(resource_size_t start, resource_size_t end,  in find_next_iomem_res()  argument
326 	if (start >= end)  in find_next_iomem_res()
333 		if (p->start > end) {  in find_next_iomem_res()
339 		if (p->end < start)  in find_next_iomem_res()
354 			.start = max(start, p->start),  in find_next_iomem_res()
366 static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end,  in __walk_iomem_res_desc()  argument
374 	while (start < end &&  in __walk_iomem_res_desc()
375 	       !find_next_iomem_res(start, end, flags, desc, &res)) {  in __walk_iomem_res_desc()
380 		start = res.end + 1;  in __walk_iomem_res_desc()
392  * @start: start addr
397  * All the memory ranges which overlap start,end and also match flags and
403 int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,  in walk_iomem_res_desc()  argument
406 	return __walk_iomem_res_desc(start, end, flags, desc, arg, func);  in walk_iomem_res_desc()
417 int walk_system_ram_res(u64 start, u64 end, void *arg,  in walk_system_ram_res()  argument
422 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_system_ram_res()
432 int walk_system_ram_res_rev(u64 start, u64 end, void *arg,  in walk_system_ram_res_rev()  argument
447 	while ((start < end) &&  in walk_system_ram_res_rev()
448 		(!find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res))) {  in walk_system_ram_res_rev()
463 		start = res.end + 1;  in walk_system_ram_res_rev()
482 int walk_mem_res(u64 start, u64 end, void *arg,  in walk_mem_res()  argument
487 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_mem_res()
499 	resource_size_t start, end;  in walk_system_ram_range()  local
505 	start = (u64) start_pfn << PAGE_SHIFT;  in walk_system_ram_range()
508 	while (start < end &&  in walk_system_ram_range()
509 	       !find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res)) {  in walk_system_ram_range()
510 		pfn = PFN_UP(res.start);  in walk_system_ram_range()
516 		start = res.end + 1;  in walk_system_ram_range()
536 static int __region_intersects(struct resource *parent, resource_size_t start,  in __region_intersects()  argument
546 	res.start = start;  in __region_intersects()
547 	res.end = start + size - 1;  in __region_intersects()
571 		ostart = max(res.start, p->start);  in __region_intersects()
581 				 * Range from 'ostart' to 'dp->start'  in __region_intersects()
584 				if (dp->start > ostart)  in __region_intersects()
609  * @start: region start address
627 int region_intersects(resource_size_t start, size_t size, unsigned long flags,  in region_intersects()  argument
633 	ret = __region_intersects(&iomem_resource, start, size, flags, desc);  in region_intersects()
647 	if (res->start < min)  in resource_clip()
648 		res->start = min;  in resource_clip()
665 	tmp.start = root->start;  in __find_resource_space()
668 	 * of this->start - 1 to tmp->end below would cause an underflow.  in __find_resource_space()
670 	if (this && this->start == root->start) {  in __find_resource_space()
671 		tmp.start = (this == old) ? old->start : this->end + 1;  in __find_resource_space()
676 			tmp.end = (this == old) ?  this->end : this->start - 1;  in __find_resource_space()
680 		if (tmp.end < tmp.start)  in __find_resource_space()
687 		avail.start = ALIGN(tmp.start, constraint->align);  in __find_resource_space()
690 		if (avail.start >= tmp.start) {  in __find_resource_space()
693 				alloc.start = alignf(constraint->alignf_data,  in __find_resource_space()
696 				alloc.start = avail.start;  in __find_resource_space()
698 			alloc.end = alloc.start + size - 1;  in __find_resource_space()
699 			if (alloc.start <= alloc.end &&  in __find_resource_space()
701 				new->start = alloc.start;  in __find_resource_space()
711 			tmp.start = this->end + 1;  in __find_resource_space()
728  * * %0		- if successful, @new members start, end, and flags are altered.
763 		old->start = new.start;  in reallocate_resource()
774 		old->start = new.start;  in reallocate_resource()
832  * lookup_resource - find an existing resource by a resource start address
834  * @start: resource start address
838 struct resource *lookup_resource(struct resource *root, resource_size_t start)  in lookup_resource()  argument
844 		if (res->start == start)  in lookup_resource()
870 		if ((first->start > new->start) || (first->end < new->end))  in __insert_resource()
872 		if ((first->start == new->start) && (first->end == new->end))  in __insert_resource()
878 		if (next->start < new->start || next->end > new->end)  in __insert_resource()
882 		if (next->sibling->start > new->end)  in __insert_resource()
974 		if (conflict->start < new->start)  in insert_resource_expand_to_fit()
975 			new->start = conflict->start;  in insert_resource_expand_to_fit()
1017 static int __adjust_resource(struct resource *res, resource_size_t start,  in __adjust_resource()  argument
1021 	resource_size_t end = start + size - 1;  in __adjust_resource()
1027 	if ((start < parent->start) || (end > parent->end))  in __adjust_resource()
1030 	if (res->sibling && (res->sibling->start <= end))  in __adjust_resource()
1037 		if (start <= tmp->end)  in __adjust_resource()
1043 		if ((tmp->start < start) || (tmp->end > end))  in __adjust_resource()
1046 	res->start = start;  in __adjust_resource()
1055  * adjust_resource - modify a resource's start and size
1057  * @start: new start value
1060  * Given an existing resource, change its start and size to match the
1064 int adjust_resource(struct resource *res, resource_size_t start,  in adjust_resource()  argument
1070 	result = __adjust_resource(res, start, size);  in adjust_resource()
1077 __reserve_region_with_split(struct resource *root, resource_size_t start,  in __reserve_region_with_split()  argument
1090 	res->start = start;  in __reserve_region_with_split()
1107 		if (conflict->start <= res->start &&  in __reserve_region_with_split()
1115 		if (conflict->start > res->start) {  in __reserve_region_with_split()
1117 			res->end = conflict->start - 1;  in __reserve_region_with_split()
1125 				next_res->start = conflict->end + 1;  in __reserve_region_with_split()
1131 			res->start = conflict->end + 1;  in __reserve_region_with_split()
1138 reserve_region_with_split(struct resource *root, resource_size_t start,  in reserve_region_with_split()  argument
1144 	if (root->start > start || root->end < end) {  in reserve_region_with_split()
1146 		       (unsigned long long)start, (unsigned long long)end,  in reserve_region_with_split()
1148 		if (start > root->end || end < root->start)  in reserve_region_with_split()
1153 			if (start < root->start)  in reserve_region_with_split()
1154 				start = root->start;  in reserve_region_with_split()
1156 			       (unsigned long long)start,  in reserve_region_with_split()
1162 		__reserve_region_with_split(root, start, end, name);  in reserve_region_with_split()
1178 		return res->start;  in resource_alignment()
1217 	 * should start returning false, however for performance this  in revoke_iomem()
1220 	if (devmem_is_allowed(PHYS_PFN(res->start)) &&  in revoke_iomem()
1229 	unmap_mapping_range(inode->i_mapping, res->start, resource_size(res), 1);  in revoke_iomem()
1247 				   resource_size_t start, resource_size_t n,  in __request_region_locked()  argument
1253 	res->start = start;  in __request_region_locked()
1254 	res->end = start + n - 1;  in __request_region_locked()
1300  * @start: resource start address
1306 				  resource_size_t start, resource_size_t n,  in __request_region()  argument
1316 	ret = __request_region_locked(res, parent, start, n, name, flags);  in __request_region()
1334  * @start: resource start address
1339 void __release_region(struct resource *parent, resource_size_t start,  in __release_region()  argument
1346 	end = start + n - 1;  in __release_region()
1355 		if (res->start <= start && res->end >= end) {  in __release_region()
1360 			if (res->start != start || res->end != end)  in __release_region()
1374 	pr_warn("Trying to free nonexistent resource <%pa-%pa>\n", &start, &end);  in __release_region()
1381  * @start: resource start address
1398 void release_mem_region_adjustable(resource_size_t start, resource_size_t size)  in release_mem_region_adjustable()  argument
1407 	end = start + size - 1;  in release_mem_region_adjustable()
1408 	if (WARN_ON_ONCE((start < parent->start) || (end > parent->end)))  in release_mem_region_adjustable()
1425 		if (res->start >= end)  in release_mem_region_adjustable()
1429 		if (res->start > start || res->end < end) {  in release_mem_region_adjustable()
1443 		if (res->start == start && res->end == end) {  in release_mem_region_adjustable()
1447 		} else if (res->start == start && res->end != end) {  in release_mem_region_adjustable()
1448 			/* adjust the start */  in release_mem_region_adjustable()
1451 		} else if (res->start != start && res->end == end) {  in release_mem_region_adjustable()
1453 			WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1454 						       start - res->start));  in release_mem_region_adjustable()
1466 			new_res->start = end + 1;  in release_mem_region_adjustable()
1474 			if (WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1475 							   start - res->start)))  in release_mem_region_adjustable()
1494 	return r1->flags == r2->flags && r1->end + 1 == r2->start &&  in system_ram_resources_mergeable()
1624 	resource_size_t start;  member
1632 	__release_region(this->parent, this->start, this->n);  in devm_region_release()
1640 		this->start == match->start && this->n == match->n;  in devm_region_match()
1645 		      resource_size_t start, resource_size_t n, const char *name)  in __devm_request_region()  argument
1656 	dr->start = start;  in __devm_request_region()
1659 	res = __request_region(parent, start, n, name, 0);  in __devm_request_region()
1670 			   resource_size_t start, resource_size_t n)  in __devm_release_region()  argument
1672 	struct region_devres match_data = { parent, start, n };  in __devm_release_region()
1674 	__release_region(parent, start, n);  in __devm_release_region()
1713 			res->start = io_start;  in reserve_setup()
1742 		if (p->start > end)  in iomem_map_sanity_check()
1746 		if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&  in iomem_map_sanity_check()
1789 		if (p->start >= addr + size)  in resource_is_exclusive()
1876 	return ALIGN(max(base->start, align), align);  in gfr_start()
1883 		return addr > size && addr >= base->start;  in gfr_continue()
1952 				dr->start = addr;  in get_free_mem_region()
1967 			res->start = addr;  in get_free_mem_region()