LPPACA_SIZE
.size = cpu_to_be16(LPPACA_SIZE),
BUILD_BUG_ON(sizeof(struct lppaca) > LPPACA_SIZE);
lp = alloc_shared_lppaca(LPPACA_SIZE, limit, cpu);
lp = alloc_paca_data(LPPACA_SIZE, 0x400, limit, cpu);
size_t shared_lppaca_total_size = PAGE_ALIGN(nr_cpu_ids * LPPACA_SIZE);