37 	.start	= 0,
45 	.start	= 0,
122 	unsigned long long start, end;  in r_show()  local
131 		start = r->start;  in r_show()
134 		start = end = 0;  in r_show()
139 			width, start,  in r_show()
146 	.start	= r_start,
183 	resource_size_t start = new->start;  in __request_resource()  local
187 	if (end < start)  in __request_resource()
189 	if (start < root->start)  in __request_resource()
196 		if (!tmp || tmp->start > end) {  in __request_resource()
203 		if (tmp->end < start)  in __request_resource()
256 		tmp->start = 0;  in __release_child_resources()
325  *			 [@start..@end].
328  * of the resource that's within [@start..@end]; if none is found, returns
331  * @start:	start address of the resource searched for
337  * The caller must specify @start, @end, @flags, and @desc
340 static int find_next_iomem_res(resource_size_t start, resource_size_t end,  in find_next_iomem_res()  argument
349 	if (start >= end)  in find_next_iomem_res()
356 		if (p->start > end) {  in find_next_iomem_res()
362 		if (p->end < start)  in find_next_iomem_res()
373 			.start = max(start, p->start),  in find_next_iomem_res()
385 static int __walk_iomem_res_desc(resource_size_t start, resource_size_t end,  in __walk_iomem_res_desc()  argument
393 	while (start < end &&  in __walk_iomem_res_desc()
394 	       !find_next_iomem_res(start, end, flags, desc, &res)) {  in __walk_iomem_res_desc()
399 		start = res.end + 1;  in __walk_iomem_res_desc()
411  * @start: start addr
416  * All the memory ranges which overlap start,end and also match flags and
422 int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,  in walk_iomem_res_desc()  argument
425 	return __walk_iomem_res_desc(start, end, flags, desc, arg, func);  in walk_iomem_res_desc()
436 int walk_system_ram_res(u64 start, u64 end, void *arg,  in walk_system_ram_res()  argument
441 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_system_ram_res()
451 int walk_system_ram_res_rev(u64 start, u64 end, void *arg,  in walk_system_ram_res_rev()  argument
466 	while ((start < end) &&  in walk_system_ram_res_rev()
467 		(!find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res))) {  in walk_system_ram_res_rev()
482 		start = res.end + 1;  in walk_system_ram_res_rev()
501 int walk_mem_res(u64 start, u64 end, void *arg,  in walk_mem_res()  argument
506 	return __walk_iomem_res_desc(start, end, flags, IORES_DESC_NONE, arg,  in walk_mem_res()
518 	resource_size_t start, end;  in walk_system_ram_range()  local
524 	start = (u64) start_pfn << PAGE_SHIFT;  in walk_system_ram_range()
527 	while (start < end &&  in walk_system_ram_range()
528 	       !find_next_iomem_res(start, end, flags, IORES_DESC_NONE, &res)) {  in walk_system_ram_range()
529 		pfn = PFN_UP(res.start);  in walk_system_ram_range()
535 		start = res.end + 1;  in walk_system_ram_range()
555 static int __region_intersects(struct resource *parent, resource_size_t start,  in __region_intersects()  argument
564 	res.start = start;  in __region_intersects()
565 	res.end = start + size - 1;  in __region_intersects()
593 				 * Range from 'o.start' to 'dp->start'  in __region_intersects()
596 				if (dp->start > o.start)  in __region_intersects()
603 				o.start = max(o.start, dp->end + 1);  in __region_intersects()
621  * @start: region start address
639 int region_intersects(resource_size_t start, size_t size, unsigned long flags,  in region_intersects()  argument
645 	ret = __region_intersects(&iomem_resource, start, size, flags, desc);  in region_intersects()
659 	if (res->start < min)  in resource_clip()
660 		res->start = min;  in resource_clip()
677 	tmp.start = root->start;  in __find_resource_space()
680 	 * of this->start - 1 to tmp->end below would cause an underflow.  in __find_resource_space()
682 	if (this && this->start == root->start) {  in __find_resource_space()
683 		tmp.start = (this == old) ? old->start : this->end + 1;  in __find_resource_space()
688 			tmp.end = (this == old) ?  this->end : this->start - 1;  in __find_resource_space()
692 		if (tmp.end < tmp.start)  in __find_resource_space()
699 		avail.start = ALIGN(tmp.start, constraint->align);  in __find_resource_space()
702 		if (avail.start >= tmp.start) {  in __find_resource_space()
705 				alloc.start = alignf(constraint->alignf_data,  in __find_resource_space()
708 				alloc.start = avail.start;  in __find_resource_space()
710 			alloc.end = alloc.start + size - 1;  in __find_resource_space()
711 			if (alloc.start <= alloc.end &&  in __find_resource_space()
713 				new->start = alloc.start;  in __find_resource_space()
723 			tmp.start = this->end + 1;  in __find_resource_space()
740  * * %0		- if successful, @new members start, end, and flags are altered.
775 		old->start = new.start;  in reallocate_resource()
786 		old->start = new.start;  in reallocate_resource()
844  * lookup_resource - find an existing resource by a resource start address
846  * @start: resource start address
850 struct resource *lookup_resource(struct resource *root, resource_size_t start)  in lookup_resource()  argument
856 		if (res->start == start)  in lookup_resource()
882 		if ((first->start > new->start) || (first->end < new->end))  in __insert_resource()
884 		if ((first->start == new->start) && (first->end == new->end))  in __insert_resource()
890 		if (next->start < new->start || next->end > new->end)  in __insert_resource()
894 		if (next->sibling->start > new->end)  in __insert_resource()
986 		if (conflict->start < new->start)  in insert_resource_expand_to_fit()
987 			new->start = conflict->start;  in insert_resource_expand_to_fit()
1029 static int __adjust_resource(struct resource *res, resource_size_t start,  in __adjust_resource()  argument
1033 	resource_size_t end = start + size - 1;  in __adjust_resource()
1039 	if ((start < parent->start) || (end > parent->end))  in __adjust_resource()
1042 	if (res->sibling && (res->sibling->start <= end))  in __adjust_resource()
1049 		if (start <= tmp->end)  in __adjust_resource()
1055 		if ((tmp->start < start) || (tmp->end > end))  in __adjust_resource()
1058 	res->start = start;  in __adjust_resource()
1067  * adjust_resource - modify a resource's start and size
1069  * @start: new start value
1072  * Given an existing resource, change its start and size to match the
1076 int adjust_resource(struct resource *res, resource_size_t start,  in adjust_resource()  argument
1082 	result = __adjust_resource(res, start, size);  in adjust_resource()
1089 __reserve_region_with_split(struct resource *root, resource_size_t start,  in __reserve_region_with_split()  argument
1102 	res->start = start;  in __reserve_region_with_split()
1119 		if (conflict->start <= res->start &&  in __reserve_region_with_split()
1127 		if (conflict->start > res->start) {  in __reserve_region_with_split()
1129 			res->end = conflict->start - 1;  in __reserve_region_with_split()
1137 				next_res->start = conflict->end + 1;  in __reserve_region_with_split()
1143 			res->start = conflict->end + 1;  in __reserve_region_with_split()
1150 reserve_region_with_split(struct resource *root, resource_size_t start,  in reserve_region_with_split()  argument
1156 	if (root->start > start || root->end < end) {  in reserve_region_with_split()
1158 		       (unsigned long long)start, (unsigned long long)end,  in reserve_region_with_split()
1160 		if (start > root->end || end < root->start)  in reserve_region_with_split()
1165 			if (start < root->start)  in reserve_region_with_split()
1166 				start = root->start;  in reserve_region_with_split()
1168 			       (unsigned long long)start,  in reserve_region_with_split()
1174 		__reserve_region_with_split(root, start, end, name);  in reserve_region_with_split()
1190 		return res->start;  in resource_alignment()
1229 	 * should start returning false, however for performance this  in revoke_iomem()
1232 	if (devmem_is_allowed(PHYS_PFN(res->start)) &&  in revoke_iomem()
1241 	unmap_mapping_range(inode->i_mapping, res->start, resource_size(res), 1);  in revoke_iomem()
1259 				   resource_size_t start, resource_size_t n,  in __request_region_locked()  argument
1265 	res->start = start;  in __request_region_locked()
1266 	res->end = start + n - 1;  in __request_region_locked()
1312  * @start: resource start address
1318 				  resource_size_t start, resource_size_t n,  in __request_region()  argument
1328 	ret = __request_region_locked(res, parent, start, n, name, flags);  in __request_region()
1346  * @start: resource start address
1351 void __release_region(struct resource *parent, resource_size_t start,  in __release_region()  argument
1358 	end = start + n - 1;  in __release_region()
1367 		if (res->start <= start && res->end >= end) {  in __release_region()
1372 			if (res->start != start || res->end != end)  in __release_region()
1386 	pr_warn("Trying to free nonexistent resource <%pa-%pa>\n", &start, &end);  in __release_region()
1393  * @start: resource start address
1410 void release_mem_region_adjustable(resource_size_t start, resource_size_t size)  in release_mem_region_adjustable()  argument
1419 	end = start + size - 1;  in release_mem_region_adjustable()
1420 	if (WARN_ON_ONCE((start < parent->start) || (end > parent->end)))  in release_mem_region_adjustable()
1437 		if (res->start >= end)  in release_mem_region_adjustable()
1441 		if (res->start > start || res->end < end) {  in release_mem_region_adjustable()
1455 		if (res->start == start && res->end == end) {  in release_mem_region_adjustable()
1459 		} else if (res->start == start && res->end != end) {  in release_mem_region_adjustable()
1460 			/* adjust the start */  in release_mem_region_adjustable()
1463 		} else if (res->start != start && res->end == end) {  in release_mem_region_adjustable()
1465 			WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1466 						       start - res->start));  in release_mem_region_adjustable()
1478 			new_res->start = end + 1;  in release_mem_region_adjustable()
1486 			if (WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1487 							   start - res->start)))  in release_mem_region_adjustable()
1506 	return r1->flags == r2->flags && r1->end + 1 == r2->start &&  in system_ram_resources_mergeable()
1636 	resource_size_t start;  member
1644 	__release_region(this->parent, this->start, this->n);  in devm_region_release()
1652 		this->start == match->start && this->n == match->n;  in devm_region_match()
1657 		      resource_size_t start, resource_size_t n, const char *name)  in __devm_request_region()  argument
1668 	dr->start = start;  in __devm_request_region()
1671 	res = __request_region(parent, start, n, name, 0);  in __devm_request_region()
1682 			   resource_size_t start, resource_size_t n)  in __devm_release_region()  argument
1684 	struct region_devres match_data = { parent, start, n };  in __devm_release_region()
1724 			res->start = io_start;  in reserve_setup()
1753 		if (p->start > end)  in iomem_map_sanity_check()
1757 		if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&  in iomem_map_sanity_check()
1800 		if (p->start >= addr + size)  in resource_is_exclusive()
1887 	return ALIGN(max(base->start, align), align);  in gfr_start()
1894 		return addr > size && addr >= base->start;  in gfr_continue()
1963 				dr->start = addr;  in get_free_mem_region()
1978 			res->start = addr;  in get_free_mem_region()