655 static int __init pcpu_verify_alloc_info(const struct pcpu_alloc_info *ai);
1037 	struct pcpu_alloc_info *ai;  in pcpu_alloc_alloc_info()  local
1042 	base_size = ALIGN(sizeof(*ai) + nr_groups * sizeof(ai->groups[0]),  in pcpu_alloc_alloc_info()
1043 			  __alignof__(ai->groups[0].cpu_map[0]));  in pcpu_alloc_alloc_info()
1044 	ai_size = base_size + nr_units * sizeof(ai->groups[0].cpu_map[0]);  in pcpu_alloc_alloc_info()
1049 	ai = ptr;  in pcpu_alloc_alloc_info()
1052 	ai->groups[0].cpu_map = ptr;  in pcpu_alloc_alloc_info()
1055 		ai->groups[0].cpu_map[unit] = NR_CPUS;  in pcpu_alloc_alloc_info()
1057 	ai->nr_groups = nr_groups;  in pcpu_alloc_alloc_info()
1058 	ai->__ai_size = PFN_ALIGN(ai_size);  in pcpu_alloc_alloc_info()
1060 	return ai;  in pcpu_alloc_alloc_info()
1069 void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai)  in pcpu_free_alloc_info()  argument
1071 	free_bootmem(__pa(ai), ai->__ai_size);  in pcpu_free_alloc_info()
1082 				 const struct pcpu_alloc_info *ai)  in pcpu_dump_alloc_info()  argument
1090 	v = ai->nr_groups;  in pcpu_dump_alloc_info()
1099 	upa = ai->alloc_size / ai->unit_size;  in pcpu_dump_alloc_info()
1104 	       lvl, ai->static_size, ai->reserved_size, ai->dyn_size,  in pcpu_dump_alloc_info()
1105 	       ai->unit_size, ai->alloc_size / ai->atom_size, ai->atom_size);  in pcpu_dump_alloc_info()
1107 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_dump_alloc_info()
1108 		const struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_dump_alloc_info()
1187 int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,  in pcpu_setup_first_chunk()  argument
1193 	size_t dyn_size = ai->dyn_size;  in pcpu_setup_first_chunk()
1194 	size_t size_sum = ai->static_size + ai->reserved_size + dyn_size;  in pcpu_setup_first_chunk()
1209 		pcpu_dump_alloc_info(KERN_EMERG, ai);			\  in pcpu_setup_first_chunk()
1215 	PCPU_SETUP_BUG_ON(ai->nr_groups <= 0);  in pcpu_setup_first_chunk()
1217 	PCPU_SETUP_BUG_ON(!ai->static_size);  in pcpu_setup_first_chunk()
1220 	PCPU_SETUP_BUG_ON(ai->unit_size < size_sum);  in pcpu_setup_first_chunk()
1221 	PCPU_SETUP_BUG_ON(ai->unit_size & ~PAGE_MASK);  in pcpu_setup_first_chunk()
1222 	PCPU_SETUP_BUG_ON(ai->unit_size < PCPU_MIN_UNIT_SIZE);  in pcpu_setup_first_chunk()
1223 	PCPU_SETUP_BUG_ON(ai->dyn_size < PERCPU_DYNAMIC_EARLY_SIZE);  in pcpu_setup_first_chunk()
1224 	PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0);  in pcpu_setup_first_chunk()
1227 	group_offsets = alloc_bootmem(ai->nr_groups * sizeof(group_offsets[0]));  in pcpu_setup_first_chunk()
1228 	group_sizes = alloc_bootmem(ai->nr_groups * sizeof(group_sizes[0]));  in pcpu_setup_first_chunk()
1236 	for (group = 0, unit = 0; group < ai->nr_groups; group++, unit += i) {  in pcpu_setup_first_chunk()
1237 		const struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_setup_first_chunk()
1240 		group_sizes[group] = gi->nr_units * ai->unit_size;  in pcpu_setup_first_chunk()
1252 			unit_off[cpu] = gi->base_offset + i * ai->unit_size;  in pcpu_setup_first_chunk()
1266 	pcpu_dump_alloc_info(KERN_DEBUG, ai);  in pcpu_setup_first_chunk()
1268 	pcpu_nr_groups = ai->nr_groups;  in pcpu_setup_first_chunk()
1275 	pcpu_unit_pages = ai->unit_size >> PAGE_SHIFT;  in pcpu_setup_first_chunk()
1277 	pcpu_atom_size = ai->atom_size;  in pcpu_setup_first_chunk()
1305 	if (ai->reserved_size) {  in pcpu_setup_first_chunk()
1306 		schunk->free_size = ai->reserved_size;  in pcpu_setup_first_chunk()
1308 		pcpu_reserved_chunk_limit = ai->static_size + ai->reserved_size;  in pcpu_setup_first_chunk()
1315 	schunk->map[schunk->map_used++] = -ai->static_size;  in pcpu_setup_first_chunk()
1423 	struct pcpu_alloc_info *ai;  in pcpu_build_alloc_info()  local
1506 	ai = pcpu_alloc_alloc_info(nr_groups, nr_units);  in pcpu_build_alloc_info()
1507 	if (!ai)  in pcpu_build_alloc_info()
1509 	cpu_map = ai->groups[0].cpu_map;  in pcpu_build_alloc_info()
1512 		ai->groups[group].cpu_map = cpu_map;  in pcpu_build_alloc_info()
1516 	ai->static_size = static_size;  in pcpu_build_alloc_info()
1517 	ai->reserved_size = reserved_size;  in pcpu_build_alloc_info()
1518 	ai->dyn_size = dyn_size;  in pcpu_build_alloc_info()
1519 	ai->unit_size = alloc_size / upa;  in pcpu_build_alloc_info()
1520 	ai->atom_size = atom_size;  in pcpu_build_alloc_info()
1521 	ai->alloc_size = alloc_size;  in pcpu_build_alloc_info()
1524 		struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_build_alloc_info()
1531 		gi->base_offset = unit * ai->unit_size;  in pcpu_build_alloc_info()
1541 	return ai;  in pcpu_build_alloc_info()
1586 	struct pcpu_alloc_info *ai;  in pcpu_embed_first_chunk()  local
1590 	ai = pcpu_build_alloc_info(reserved_size, dyn_size, atom_size,  in pcpu_embed_first_chunk()
1592 	if (IS_ERR(ai))  in pcpu_embed_first_chunk()
1593 		return PTR_ERR(ai);  in pcpu_embed_first_chunk()
1595 	size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;  in pcpu_embed_first_chunk()
1596 	areas_size = PFN_ALIGN(ai->nr_groups * sizeof(void *));  in pcpu_embed_first_chunk()
1605 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_embed_first_chunk()
1606 		struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_embed_first_chunk()
1615 		ptr = alloc_fn(cpu, gi->nr_units * ai->unit_size, atom_size);  in pcpu_embed_first_chunk()
1624 		for (i = 0; i < gi->nr_units; i++, ptr += ai->unit_size) {  in pcpu_embed_first_chunk()
1627 				free_fn(ptr, ai->unit_size);  in pcpu_embed_first_chunk()
1631 			memcpy(ptr, __per_cpu_load, ai->static_size);  in pcpu_embed_first_chunk()
1632 			free_fn(ptr + size_sum, ai->unit_size - size_sum);  in pcpu_embed_first_chunk()
1638 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_embed_first_chunk()
1639 		ai->groups[group].base_offset = areas[group] - base;  in pcpu_embed_first_chunk()
1641 				     ai->groups[group].base_offset);  in pcpu_embed_first_chunk()
1643 	max_distance += ai->unit_size;  in pcpu_embed_first_chunk()
1658 		PFN_DOWN(size_sum), base, ai->static_size, ai->reserved_size,  in pcpu_embed_first_chunk()
1659 		ai->dyn_size, ai->unit_size);  in pcpu_embed_first_chunk()
1661 	rc = pcpu_setup_first_chunk(ai, base);  in pcpu_embed_first_chunk()
1665 	for (group = 0; group < ai->nr_groups; group++)  in pcpu_embed_first_chunk()
1667 			ai->groups[group].nr_units * ai->unit_size);  in pcpu_embed_first_chunk()
1669 	pcpu_free_alloc_info(ai);  in pcpu_embed_first_chunk()
1699 	struct pcpu_alloc_info *ai;  in pcpu_page_first_chunk()  local
1708 	ai = pcpu_build_alloc_info(reserved_size, 0, PAGE_SIZE, NULL);  in pcpu_page_first_chunk()
1709 	if (IS_ERR(ai))  in pcpu_page_first_chunk()
1710 		return PTR_ERR(ai);  in pcpu_page_first_chunk()
1711 	BUG_ON(ai->nr_groups != 1);  in pcpu_page_first_chunk()
1712 	BUG_ON(ai->groups[0].nr_units != num_possible_cpus());  in pcpu_page_first_chunk()
1714 	unit_pages = ai->unit_size >> PAGE_SHIFT;  in pcpu_page_first_chunk()
1725 			unsigned int cpu = ai->groups[0].cpu_map[unit];  in pcpu_page_first_chunk()
1739 	vm.size = num_possible_cpus() * ai->unit_size;  in pcpu_page_first_chunk()
1744 			(unsigned long)vm.addr + unit * ai->unit_size;  in pcpu_page_first_chunk()
1764 		memcpy((void *)unit_addr, __per_cpu_load, ai->static_size);  in pcpu_page_first_chunk()
1769 		unit_pages, psize_str, vm.addr, ai->static_size,  in pcpu_page_first_chunk()
1770 		ai->reserved_size, ai->dyn_size);  in pcpu_page_first_chunk()
1772 	rc = pcpu_setup_first_chunk(ai, vm.addr);  in pcpu_page_first_chunk()
1781 	pcpu_free_alloc_info(ai);  in pcpu_page_first_chunk()
1849 	struct pcpu_alloc_info *ai;  in setup_per_cpu_areas()  local
1852 	ai = pcpu_alloc_alloc_info(1, 1);  in setup_per_cpu_areas()
1854 	if (!ai || !fc)  in setup_per_cpu_areas()
1857 	ai->dyn_size = unit_size;  in setup_per_cpu_areas()
1858 	ai->unit_size = unit_size;  in setup_per_cpu_areas()
1859 	ai->atom_size = unit_size;  in setup_per_cpu_areas()
1860 	ai->alloc_size = unit_size;  in setup_per_cpu_areas()
1861 	ai->groups[0].nr_units = 1;  in setup_per_cpu_areas()
1862 	ai->groups[0].cpu_map[0] = 0;  in setup_per_cpu_areas()
1864 	if (pcpu_setup_first_chunk(ai, fc) < 0)  in setup_per_cpu_areas()