1298 static int __init pcpu_verify_alloc_info(const struct pcpu_alloc_info *ai);
1882 	struct pcpu_alloc_info *ai;  in pcpu_alloc_alloc_info()  local
1887 	base_size = ALIGN(sizeof(*ai) + nr_groups * sizeof(ai->groups[0]),  in pcpu_alloc_alloc_info()
1888 			  __alignof__(ai->groups[0].cpu_map[0]));  in pcpu_alloc_alloc_info()
1889 	ai_size = base_size + nr_units * sizeof(ai->groups[0].cpu_map[0]);  in pcpu_alloc_alloc_info()
1894 	ai = ptr;  in pcpu_alloc_alloc_info()
1897 	ai->groups[0].cpu_map = ptr;  in pcpu_alloc_alloc_info()
1900 		ai->groups[0].cpu_map[unit] = NR_CPUS;  in pcpu_alloc_alloc_info()
1902 	ai->nr_groups = nr_groups;  in pcpu_alloc_alloc_info()
1903 	ai->__ai_size = PFN_ALIGN(ai_size);  in pcpu_alloc_alloc_info()
1905 	return ai;  in pcpu_alloc_alloc_info()
1914 void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai)  in pcpu_free_alloc_info()  argument
1916 	memblock_free_early(__pa(ai), ai->__ai_size);  in pcpu_free_alloc_info()
1927 				 const struct pcpu_alloc_info *ai)  in pcpu_dump_alloc_info()  argument
1935 	v = ai->nr_groups;  in pcpu_dump_alloc_info()
1944 	upa = ai->alloc_size / ai->unit_size;  in pcpu_dump_alloc_info()
1949 	       lvl, ai->static_size, ai->reserved_size, ai->dyn_size,  in pcpu_dump_alloc_info()
1950 	       ai->unit_size, ai->alloc_size / ai->atom_size, ai->atom_size);  in pcpu_dump_alloc_info()
1952 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_dump_alloc_info()
1953 		const struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_dump_alloc_info()
2033 int __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai,  in pcpu_setup_first_chunk()  argument
2036 	size_t size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;  in pcpu_setup_first_chunk()
2053 		pcpu_dump_alloc_info(KERN_EMERG, ai);			\  in pcpu_setup_first_chunk()
2059 	PCPU_SETUP_BUG_ON(ai->nr_groups <= 0);  in pcpu_setup_first_chunk()
2061 	PCPU_SETUP_BUG_ON(!ai->static_size);  in pcpu_setup_first_chunk()
2066 	PCPU_SETUP_BUG_ON(ai->unit_size < size_sum);  in pcpu_setup_first_chunk()
2067 	PCPU_SETUP_BUG_ON(offset_in_page(ai->unit_size));  in pcpu_setup_first_chunk()
2068 	PCPU_SETUP_BUG_ON(ai->unit_size < PCPU_MIN_UNIT_SIZE);  in pcpu_setup_first_chunk()
2069 	PCPU_SETUP_BUG_ON(!IS_ALIGNED(ai->unit_size, PCPU_BITMAP_BLOCK_SIZE));  in pcpu_setup_first_chunk()
2070 	PCPU_SETUP_BUG_ON(ai->dyn_size < PERCPU_DYNAMIC_EARLY_SIZE);  in pcpu_setup_first_chunk()
2071 	PCPU_SETUP_BUG_ON(!ai->dyn_size);  in pcpu_setup_first_chunk()
2072 	PCPU_SETUP_BUG_ON(!IS_ALIGNED(ai->reserved_size, PCPU_MIN_ALLOC_SIZE));  in pcpu_setup_first_chunk()
2075 	PCPU_SETUP_BUG_ON(pcpu_verify_alloc_info(ai) < 0);  in pcpu_setup_first_chunk()
2078 	group_offsets = memblock_virt_alloc(ai->nr_groups *  in pcpu_setup_first_chunk()
2080 	group_sizes = memblock_virt_alloc(ai->nr_groups *  in pcpu_setup_first_chunk()
2091 	for (group = 0, unit = 0; group < ai->nr_groups; group++, unit += i) {  in pcpu_setup_first_chunk()
2092 		const struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_setup_first_chunk()
2095 		group_sizes[group] = gi->nr_units * ai->unit_size;  in pcpu_setup_first_chunk()
2107 			unit_off[cpu] = gi->base_offset + i * ai->unit_size;  in pcpu_setup_first_chunk()
2125 	pcpu_dump_alloc_info(KERN_DEBUG, ai);  in pcpu_setup_first_chunk()
2127 	pcpu_nr_groups = ai->nr_groups;  in pcpu_setup_first_chunk()
2134 	pcpu_unit_pages = ai->unit_size >> PAGE_SHIFT;  in pcpu_setup_first_chunk()
2136 	pcpu_atom_size = ai->atom_size;  in pcpu_setup_first_chunk()
2140 	pcpu_stats_save_ai(ai);  in pcpu_setup_first_chunk()
2160 	static_size = ALIGN(ai->static_size, PCPU_MIN_ALLOC_SIZE);  in pcpu_setup_first_chunk()
2161 	dyn_size = ai->dyn_size - (static_size - ai->static_size);  in pcpu_setup_first_chunk()
2172 	map_size = ai->reserved_size ?: dyn_size;  in pcpu_setup_first_chunk()
2176 	if (ai->reserved_size) {  in pcpu_setup_first_chunk()
2180 			   ai->reserved_size;  in pcpu_setup_first_chunk()
2284 	struct pcpu_alloc_info *ai;  in pcpu_build_alloc_info()  local
2368 	ai = pcpu_alloc_alloc_info(nr_groups, nr_units);  in pcpu_build_alloc_info()
2369 	if (!ai)  in pcpu_build_alloc_info()
2371 	cpu_map = ai->groups[0].cpu_map;  in pcpu_build_alloc_info()
2374 		ai->groups[group].cpu_map = cpu_map;  in pcpu_build_alloc_info()
2378 	ai->static_size = static_size;  in pcpu_build_alloc_info()
2379 	ai->reserved_size = reserved_size;  in pcpu_build_alloc_info()
2380 	ai->dyn_size = dyn_size;  in pcpu_build_alloc_info()
2381 	ai->unit_size = alloc_size / upa;  in pcpu_build_alloc_info()
2382 	ai->atom_size = atom_size;  in pcpu_build_alloc_info()
2383 	ai->alloc_size = alloc_size;  in pcpu_build_alloc_info()
2386 		struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_build_alloc_info()
2393 		gi->base_offset = unit * ai->unit_size;  in pcpu_build_alloc_info()
2403 	return ai;  in pcpu_build_alloc_info()
2448 	struct pcpu_alloc_info *ai;  in pcpu_embed_first_chunk()  local
2453 	ai = pcpu_build_alloc_info(reserved_size, dyn_size, atom_size,  in pcpu_embed_first_chunk()
2455 	if (IS_ERR(ai))  in pcpu_embed_first_chunk()
2456 		return PTR_ERR(ai);  in pcpu_embed_first_chunk()
2458 	size_sum = ai->static_size + ai->reserved_size + ai->dyn_size;  in pcpu_embed_first_chunk()
2459 	areas_size = PFN_ALIGN(ai->nr_groups * sizeof(void *));  in pcpu_embed_first_chunk()
2469 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_embed_first_chunk()
2470 		struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_embed_first_chunk()
2479 		ptr = alloc_fn(cpu, gi->nr_units * ai->unit_size, atom_size);  in pcpu_embed_first_chunk()
2493 	max_distance += ai->unit_size * ai->groups[highest_group].nr_units;  in pcpu_embed_first_chunk()
2511 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_embed_first_chunk()
2512 		struct pcpu_group_info *gi = &ai->groups[group];  in pcpu_embed_first_chunk()
2515 		for (i = 0; i < gi->nr_units; i++, ptr += ai->unit_size) {  in pcpu_embed_first_chunk()
2518 				free_fn(ptr, ai->unit_size);  in pcpu_embed_first_chunk()
2522 			memcpy(ptr, __per_cpu_load, ai->static_size);  in pcpu_embed_first_chunk()
2523 			free_fn(ptr + size_sum, ai->unit_size - size_sum);  in pcpu_embed_first_chunk()
2528 	for (group = 0; group < ai->nr_groups; group++) {  in pcpu_embed_first_chunk()
2529 		ai->groups[group].base_offset = areas[group] - base;  in pcpu_embed_first_chunk()
2533 		PFN_DOWN(size_sum), base, ai->static_size, ai->reserved_size,  in pcpu_embed_first_chunk()
2534 		ai->dyn_size, ai->unit_size);  in pcpu_embed_first_chunk()
2536 	rc = pcpu_setup_first_chunk(ai, base);  in pcpu_embed_first_chunk()
2540 	for (group = 0; group < ai->nr_groups; group++)  in pcpu_embed_first_chunk()
2543 				ai->groups[group].nr_units * ai->unit_size);  in pcpu_embed_first_chunk()
2545 	pcpu_free_alloc_info(ai);  in pcpu_embed_first_chunk()
2575 	struct pcpu_alloc_info *ai;  in pcpu_page_first_chunk()  local
2586 	ai = pcpu_build_alloc_info(reserved_size, 0, PAGE_SIZE, NULL);  in pcpu_page_first_chunk()
2587 	if (IS_ERR(ai))  in pcpu_page_first_chunk()
2588 		return PTR_ERR(ai);  in pcpu_page_first_chunk()
2589 	BUG_ON(ai->nr_groups != 1);  in pcpu_page_first_chunk()
2590 	upa = ai->alloc_size/ai->unit_size;  in pcpu_page_first_chunk()
2592 	if (unlikely(WARN_ON(ai->groups[0].nr_units != nr_g0_units))) {  in pcpu_page_first_chunk()
2593 		pcpu_free_alloc_info(ai);  in pcpu_page_first_chunk()
2597 	unit_pages = ai->unit_size >> PAGE_SHIFT;  in pcpu_page_first_chunk()
2607 		unsigned int cpu = ai->groups[0].cpu_map[unit];  in pcpu_page_first_chunk()
2625 	vm.size = num_possible_cpus() * ai->unit_size;  in pcpu_page_first_chunk()
2630 			(unsigned long)vm.addr + unit * ai->unit_size;  in pcpu_page_first_chunk()
2650 		memcpy((void *)unit_addr, __per_cpu_load, ai->static_size);  in pcpu_page_first_chunk()
2655 		unit_pages, psize_str, vm.addr, ai->static_size,  in pcpu_page_first_chunk()
2656 		ai->reserved_size, ai->dyn_size);  in pcpu_page_first_chunk()
2658 	rc = pcpu_setup_first_chunk(ai, vm.addr);  in pcpu_page_first_chunk()
2667 	pcpu_free_alloc_info(ai);  in pcpu_page_first_chunk()
2736 	struct pcpu_alloc_info *ai;  in setup_per_cpu_areas()  local
2739 	ai = pcpu_alloc_alloc_info(1, 1);  in setup_per_cpu_areas()
2743 	if (!ai || !fc)  in setup_per_cpu_areas()
2748 	ai->dyn_size = unit_size;  in setup_per_cpu_areas()
2749 	ai->unit_size = unit_size;  in setup_per_cpu_areas()
2750 	ai->atom_size = unit_size;  in setup_per_cpu_areas()
2751 	ai->alloc_size = unit_size;  in setup_per_cpu_areas()
2752 	ai->groups[0].nr_units = 1;  in setup_per_cpu_areas()
2753 	ai->groups[0].cpu_map[0] = 0;  in setup_per_cpu_areas()
2755 	if (pcpu_setup_first_chunk(ai, fc) < 0)  in setup_per_cpu_areas()
2757 	pcpu_free_alloc_info(ai);  in setup_per_cpu_areas()