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()
310  *			 [@start..@end].
313  * of the resource that's within [@start..@end]; if none is found, returns
316  * @start:	start address of the resource searched for
322  * The caller must specify @start, @end, @flags, and @desc
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()
400  * @start: start addr
405  * All the memory ranges which overlap start,end and also match flags and
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
502 	res.start = start;  in __region_intersects()
503 	res.end = start + size - 1;  in __region_intersects()
527 		ostart = max(res.start, p->start);  in __region_intersects()
537 				 * Range from 'ostart' to 'dp->start'  in __region_intersects()
540 				if (dp->start > ostart)  in __region_intersects()
565  * @start: region start address
583 int region_intersects(resource_size_t start, size_t size, unsigned long flags,  in region_intersects()  argument
589 	ret = __region_intersects(&iomem_resource, start, size, flags, desc);  in region_intersects()
605 	return avail->start;  in simple_align_resource()
611 	if (res->start < min)  in resource_clip()
612 		res->start = min;  in resource_clip()
629 	tmp.start = root->start;  in __find_resource()
632 	 * of this->start - 1 to tmp->end below would cause an underflow.  in __find_resource()
634 	if (this && this->start == root->start) {  in __find_resource()
635 		tmp.start = (this == old) ? old->start : this->end + 1;  in __find_resource()
640 			tmp.end = (this == old) ?  this->end : this->start - 1;  in __find_resource()
644 		if (tmp.end < tmp.start)  in __find_resource()
651 		avail.start = ALIGN(tmp.start, constraint->align);  in __find_resource()
654 		if (avail.start >= tmp.start) {  in __find_resource()
656 			alloc.start = constraint->alignf(constraint->alignf_data, &avail,  in __find_resource()
658 			alloc.end = alloc.start + size - 1;  in __find_resource()
659 			if (alloc.start <= alloc.end &&  in __find_resource()
661 				new->start = alloc.start;  in __find_resource()
671 			tmp.start = this->end + 1;  in __find_resource()
711 		old->start = new.start;  in reallocate_resource()
722 		old->start = new.start;  in reallocate_resource()
786  * lookup_resource - find an existing resource by a resource start address
788  * @start: resource start address
792 struct resource *lookup_resource(struct resource *root, resource_size_t start)  in lookup_resource()  argument
798 		if (res->start == start)  in lookup_resource()
824 		if ((first->start > new->start) || (first->end < new->end))  in __insert_resource()
826 		if ((first->start == new->start) && (first->end == new->end))  in __insert_resource()
832 		if (next->start < new->start || next->end > new->end)  in __insert_resource()
836 		if (next->sibling->start > new->end)  in __insert_resource()
928 		if (conflict->start < new->start)  in insert_resource_expand_to_fit()
929 			new->start = conflict->start;  in insert_resource_expand_to_fit()
971 static int __adjust_resource(struct resource *res, resource_size_t start,  in __adjust_resource()  argument
975 	resource_size_t end = start + size - 1;  in __adjust_resource()
981 	if ((start < parent->start) || (end > parent->end))  in __adjust_resource()
984 	if (res->sibling && (res->sibling->start <= end))  in __adjust_resource()
991 		if (start <= tmp->end)  in __adjust_resource()
997 		if ((tmp->start < start) || (tmp->end > end))  in __adjust_resource()
1000 	res->start = start;  in __adjust_resource()
1009  * adjust_resource - modify a resource's start and size
1011  * @start: new start value
1014  * Given an existing resource, change its start and size to match the
1018 int adjust_resource(struct resource *res, resource_size_t start,  in adjust_resource()  argument
1024 	result = __adjust_resource(res, start, size);  in adjust_resource()
1031 __reserve_region_with_split(struct resource *root, resource_size_t start,  in __reserve_region_with_split()  argument
1044 	res->start = start;  in __reserve_region_with_split()
1061 		if (conflict->start <= res->start &&  in __reserve_region_with_split()
1069 		if (conflict->start > res->start) {  in __reserve_region_with_split()
1071 			res->end = conflict->start - 1;  in __reserve_region_with_split()
1079 				next_res->start = conflict->end + 1;  in __reserve_region_with_split()
1085 			res->start = conflict->end + 1;  in __reserve_region_with_split()
1092 reserve_region_with_split(struct resource *root, resource_size_t start,  in reserve_region_with_split()  argument
1098 	if (root->start > start || root->end < end) {  in reserve_region_with_split()
1100 		       (unsigned long long)start, (unsigned long long)end,  in reserve_region_with_split()
1102 		if (start > root->end || end < root->start)  in reserve_region_with_split()
1107 			if (start < root->start)  in reserve_region_with_split()
1108 				start = root->start;  in reserve_region_with_split()
1110 			       (unsigned long long)start,  in reserve_region_with_split()
1116 		__reserve_region_with_split(root, start, end, name);  in reserve_region_with_split()
1132 		return res->start;  in resource_alignment()
1171 	 * should start returning false, however for performance this  in revoke_iomem()
1174 	if (devmem_is_allowed(PHYS_PFN(res->start)) &&  in revoke_iomem()
1183 	unmap_mapping_range(inode->i_mapping, res->start, resource_size(res), 1);  in revoke_iomem()
1201 				   resource_size_t start, resource_size_t n,  in __request_region_locked()  argument
1207 	res->start = start;  in __request_region_locked()
1208 	res->end = start + n - 1;  in __request_region_locked()
1254  * @start: resource start address
1260 				  resource_size_t start, resource_size_t n,  in __request_region()  argument
1270 	ret = __request_region_locked(res, parent, start, n, name, flags);  in __request_region()
1288  * @start: resource start address
1293 void __release_region(struct resource *parent, resource_size_t start,  in __release_region()  argument
1300 	end = start + n - 1;  in __release_region()
1309 		if (res->start <= start && res->end >= end) {  in __release_region()
1314 			if (res->start != start || res->end != end)  in __release_region()
1328 	pr_warn("Trying to free nonexistent resource <%pa-%pa>\n", &start, &end);  in __release_region()
1335  * @start: resource start address
1352 void release_mem_region_adjustable(resource_size_t start, resource_size_t size)  in release_mem_region_adjustable()  argument
1361 	end = start + size - 1;  in release_mem_region_adjustable()
1362 	if (WARN_ON_ONCE((start < parent->start) || (end > parent->end)))  in release_mem_region_adjustable()
1379 		if (res->start >= end)  in release_mem_region_adjustable()
1383 		if (res->start > start || res->end < end) {  in release_mem_region_adjustable()
1397 		if (res->start == start && res->end == end) {  in release_mem_region_adjustable()
1401 		} else if (res->start == start && res->end != end) {  in release_mem_region_adjustable()
1402 			/* adjust the start */  in release_mem_region_adjustable()
1405 		} else if (res->start != start && res->end == end) {  in release_mem_region_adjustable()
1407 			WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1408 						       start - res->start));  in release_mem_region_adjustable()
1420 			new_res->start = end + 1;  in release_mem_region_adjustable()
1428 			if (WARN_ON_ONCE(__adjust_resource(res, res->start,  in release_mem_region_adjustable()
1429 							   start - res->start)))  in release_mem_region_adjustable()
1448 	return r1->flags == r2->flags && r1->end + 1 == r2->start &&  in system_ram_resources_mergeable()
1578 	resource_size_t start;  member
1586 	__release_region(this->parent, this->start, this->n);  in devm_region_release()
1594 		this->start == match->start && this->n == match->n;  in devm_region_match()
1599 		      resource_size_t start, resource_size_t n, const char *name)  in __devm_request_region()  argument
1610 	dr->start = start;  in __devm_request_region()
1613 	res = __request_region(parent, start, n, name, 0);  in __devm_request_region()
1624 			   resource_size_t start, resource_size_t n)  in __devm_release_region()  argument
1626 	struct region_devres match_data = { parent, start, n };  in __devm_release_region()
1628 	__release_region(parent, start, n);  in __devm_release_region()
1667 			res->start = io_start;  in reserve_setup()
1697 		if (p->start > end)  in iomem_map_sanity_check()
1701 		if (PFN_DOWN(p->start) <= PFN_DOWN(addr) &&  in iomem_map_sanity_check()
1744 		if (p->start >= addr + size)  in resource_is_exclusive()
1827 	return ALIGN(base->start, align);  in gfr_start()
1834 		return addr > size && addr >= base->start;  in gfr_continue()
1903 				dr->start = addr;  in get_free_mem_region()
1918 			res->start = addr;  in get_free_mem_region()