| 1 | // SPDX-License-Identifier: GPL-2.0 |
|---|---|
| 2 | /* |
| 3 | * NUMA support for s390 |
| 4 | * |
| 5 | * Implement NUMA core code. |
| 6 | * |
| 7 | * Copyright IBM Corp. 2015 |
| 8 | */ |
| 9 | |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/mmzone.h> |
| 12 | #include <linux/cpumask.h> |
| 13 | #include <linux/memblock.h> |
| 14 | #include <linux/node.h> |
| 15 | #include <asm/numa.h> |
| 16 | |
| 17 | void __init numa_setup(void) |
| 18 | { |
| 19 | int nid; |
| 20 | |
| 21 | nodes_clear(node_possible_map); |
| 22 | node_set(0, node_possible_map); |
| 23 | node_set_online(nid: 0); |
| 24 | for (nid = 0; nid < MAX_NUMNODES; nid++) |
| 25 | NODE_DATA(nid) = memblock_alloc_or_panic(sizeof(pg_data_t), 8); |
| 26 | NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT; |
| 27 | NODE_DATA(0)->node_id = 0; |
| 28 | } |
| 29 |