150 static void free_resource(struct resource *res)  in free_resource()  argument
152 	if (!res)  in free_resource()
155 	if (!PageSlab(virt_to_head_page(res))) {  in free_resource()
157 		res->sibling = bootmem_resource_free;  in free_resource()
158 		bootmem_resource_free = res;  in free_resource()
161 		kfree(res);  in free_resource()
167 	struct resource *res = NULL;  in alloc_resource()  local
171 		res = bootmem_resource_free;  in alloc_resource()
172 		bootmem_resource_free = res->sibling;  in alloc_resource()
176 	if (res)  in alloc_resource()
177 		memset(res, 0, sizeof(struct resource));  in alloc_resource()
179 		res = kzalloc(sizeof(struct resource), flags);  in alloc_resource()
181 	return res;  in alloc_resource()
343 			       bool first_lvl, struct resource *res)  in find_next_iomem_res()  argument
348 	if (!res)  in find_next_iomem_res()
385 		res->start = max(start, p->start);  in find_next_iomem_res()
386 		res->end = min(end, p->end);  in find_next_iomem_res()
387 		res->flags = p->flags;  in find_next_iomem_res()
388 		res->desc = p->desc;  in find_next_iomem_res()
400 	struct resource res;  in __walk_iomem_res_desc()  local
404 	       !find_next_iomem_res(start, end, flags, desc, first_lvl, &res)) {  in __walk_iomem_res_desc()
405 		ret = (*func)(&res, arg);  in __walk_iomem_res_desc()
409 		start = res.end + 1;  in __walk_iomem_res_desc()
480 	struct resource res;  in walk_system_ram_range()  local
489 				    false, &res)) {  in walk_system_ram_range()
490 		pfn = PFN_UP(res.start);  in walk_system_ram_range()
491 		end_pfn = PFN_DOWN(res.end + 1);  in walk_system_ram_range()
496 		start = res.end + 1;  in walk_system_ram_range()
539 	struct resource res;  in region_intersects()  local
543 	res.start = start;  in region_intersects()
544 	res.end = start + size - 1;  in region_intersects()
552 		if (resource_overlaps(p, &res))  in region_intersects()
579 static void resource_clip(struct resource *res, resource_size_t min,  in resource_clip()  argument
582 	if (res->start < min)  in resource_clip()
583 		res->start = min;  in resource_clip()
584 	if (res->end > max)  in resource_clip()
585 		res->end = max;  in resource_clip()
765 	struct resource *res;  in lookup_resource()  local
768 	for (res = root->child; res; res = res->sibling) {  in lookup_resource()
769 		if (res->start == start)  in lookup_resource()
774 	return res;  in lookup_resource()
935 static int __adjust_resource(struct resource *res, resource_size_t start,  in __adjust_resource()  argument
938 	struct resource *tmp, *parent = res->parent;  in __adjust_resource()
948 	if (res->sibling && (res->sibling->start <= end))  in __adjust_resource()
952 	if (tmp != res) {  in __adjust_resource()
953 		while (tmp->sibling != res)  in __adjust_resource()
960 	for (tmp = res->child; tmp; tmp = tmp->sibling)  in __adjust_resource()
964 	res->start = start;  in __adjust_resource()
965 	res->end = end;  in __adjust_resource()
982 int adjust_resource(struct resource *res, resource_size_t start,  in adjust_resource()  argument
988 	result = __adjust_resource(res, start, size);  in adjust_resource()
1000 	struct resource *res = alloc_resource(GFP_ATOMIC);  in __reserve_region_with_split()  local
1004 	if (!res)  in __reserve_region_with_split()
1007 	res->name = name;  in __reserve_region_with_split()
1008 	res->start = start;  in __reserve_region_with_split()
1009 	res->end = end;  in __reserve_region_with_split()
1010 	res->flags = type | IORESOURCE_BUSY;  in __reserve_region_with_split()
1011 	res->desc = IORES_DESC_NONE;  in __reserve_region_with_split()
1015 		conflict = __request_resource(parent, res);  in __reserve_region_with_split()
1019 			res = next_res;  in __reserve_region_with_split()
1025 		if (conflict->start <= res->start &&  in __reserve_region_with_split()
1026 				conflict->end >= res->end) {  in __reserve_region_with_split()
1027 			free_resource(res);  in __reserve_region_with_split()
1033 		if (conflict->start > res->start) {  in __reserve_region_with_split()
1034 			end = res->end;  in __reserve_region_with_split()
1035 			res->end = conflict->start - 1;  in __reserve_region_with_split()
1039 					free_resource(res);  in __reserve_region_with_split()
1049 			res->start = conflict->end + 1;  in __reserve_region_with_split()
1090 resource_size_t resource_alignment(struct resource *res)  in resource_alignment()  argument
1092 	switch (res->flags & (IORESOURCE_SIZEALIGN | IORESOURCE_STARTALIGN)) {  in resource_alignment()
1094 		return resource_size(res);  in resource_alignment()
1096 		return res->start;  in resource_alignment()
1128 	struct resource *res = alloc_resource(GFP_KERNEL);  in __request_region()  local
1130 	if (!res)  in __request_region()
1133 	res->name = name;  in __request_region()
1134 	res->start = start;  in __request_region()
1135 	res->end = start + n - 1;  in __request_region()
1142 		res->flags = resource_type(parent) | resource_ext_type(parent);  in __request_region()
1143 		res->flags |= IORESOURCE_BUSY | flags;  in __request_region()
1144 		res->desc = parent->desc;  in __request_region()
1146 		conflict = __request_resource(parent, res);  in __request_region()
1156 				conflict->name, conflict, res);  in __request_region()
1174 		free_resource(res);  in __request_region()
1175 		res = NULL;  in __request_region()
1179 	return res;  in __request_region()
1203 		struct resource *res = *p;  in __release_region()  local
1205 		if (!res)  in __release_region()
1207 		if (res->start <= start && res->end >= end) {  in __release_region()
1208 			if (!(res->flags & IORESOURCE_BUSY)) {  in __release_region()
1209 				p = &res->child;  in __release_region()
1212 			if (res->start != start || res->end != end)  in __release_region()
1214 			*p = res->sibling;  in __release_region()
1216 			if (res->flags & IORESOURCE_MUXED)  in __release_region()
1218 			free_resource(res);  in __release_region()
1221 		p = &res->sibling;  in __release_region()
1257 	struct resource *res;  in release_mem_region_adjustable()  local
1272 	while ((res = *p)) {  in release_mem_region_adjustable()
1273 		if (res->start >= end)  in release_mem_region_adjustable()
1277 		if (res->start > start || res->end < end) {  in release_mem_region_adjustable()
1278 			p = &res->sibling;  in release_mem_region_adjustable()
1292 		if (!(res->flags & IORESOURCE_SYSRAM)) {  in release_mem_region_adjustable()
1297 		if (!(res->flags & IORESOURCE_MEM))  in release_mem_region_adjustable()
1300 		if (!(res->flags & IORESOURCE_BUSY)) {  in release_mem_region_adjustable()
1301 			p = &res->child;  in release_mem_region_adjustable()
1306 		if (res->start == start && res->end == end) {  in release_mem_region_adjustable()
1308 			*p = res->sibling;  in release_mem_region_adjustable()
1309 			free_resource(res);  in release_mem_region_adjustable()
1311 		} else if (res->start == start && res->end != end) {  in release_mem_region_adjustable()
1313 			ret = __adjust_resource(res, end + 1,  in release_mem_region_adjustable()
1314 						res->end - end);  in release_mem_region_adjustable()
1315 		} else if (res->start != start && res->end == end) {  in release_mem_region_adjustable()
1317 			ret = __adjust_resource(res, res->start,  in release_mem_region_adjustable()
1318 						start - res->start);  in release_mem_region_adjustable()
1325 			new_res->name = res->name;  in release_mem_region_adjustable()
1327 			new_res->end = res->end;  in release_mem_region_adjustable()
1328 			new_res->flags = res->flags;  in release_mem_region_adjustable()
1329 			new_res->desc = res->desc;  in release_mem_region_adjustable()
1330 			new_res->parent = res->parent;  in release_mem_region_adjustable()
1331 			new_res->sibling = res->sibling;  in release_mem_region_adjustable()
1334 			ret = __adjust_resource(res, res->start,  in release_mem_region_adjustable()
1335 						start - res->start);  in release_mem_region_adjustable()
1338 			res->sibling = new_res;  in release_mem_region_adjustable()
1403 static int devm_resource_match(struct device *dev, void *res, void *data)  in devm_resource_match()  argument
1405 	struct resource **ptr = res;  in devm_resource_match()
1430 static void devm_region_release(struct device *dev, void *res)  in devm_region_release()  argument
1432 	struct region_devres *this = res;  in devm_region_release()
1437 static int devm_region_match(struct device *dev, void *res, void *match_data)  in devm_region_match()  argument
1439 	struct region_devres *this = res, *match = match_data;  in devm_region_match()
1450 	struct resource *res;  in __devm_request_region()  local
1461 	res = __request_region(parent, start, n, name, 0);  in __devm_request_region()
1462 	if (res)  in __devm_request_region()
1467 	return res;  in __devm_request_region()
1501 			struct resource *res = reserve + x;  in reserve_setup()  local
1508 				res->flags = IORESOURCE_IO;  in reserve_setup()
1511 				res->flags = IORESOURCE_MEM;  in reserve_setup()
1514 			res->name = "reserved";  in reserve_setup()
1515 			res->start = io_start;  in reserve_setup()
1516 			res->end = io_start + io_num - 1;  in reserve_setup()
1517 			res->flags |= IORESOURCE_BUSY;  in reserve_setup()
1518 			res->desc = IORES_DESC_NONE;  in reserve_setup()
1519 			res->child = NULL;  in reserve_setup()
1520 			if (request_resource(parent, res) == 0)  in reserve_setup()
1622 struct resource_entry *resource_list_create_entry(struct resource *res,  in resource_list_create_entry()  argument
1630 		entry->res = res ? res : &entry->__res;  in resource_list_create_entry()
1651 	struct resource *res;  in __request_free_mem_region()  local
1663 			res = devm_request_mem_region(dev, addr, size, name);  in __request_free_mem_region()
1665 			res = request_mem_region(addr, size, name);  in __request_free_mem_region()
1666 		if (!res)  in __request_free_mem_region()
1668 		res->desc = IORES_DESC_DEVICE_PRIVATE_MEMORY;  in __request_free_mem_region()
1669 		return res;  in __request_free_mem_region()