1 files changed, 28 insertions, 0 deletions
diff --git a/arch/s390/kernel/numa.c b/arch/s390/kernel/numa.c
new file mode 100644
index 000000000000..2fc40f97c0ad
--- /dev/null
+++ b/arch/s390/kernel/numa.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NUMA support for s390
+ *
+ * Implement NUMA core code.
+ *
+ * Copyright IBM Corp. 2015
+ */
+
+#include <linux/kernel.h>
+#include <linux/mmzone.h>
+#include <linux/cpumask.h>
+#include <linux/memblock.h>
+#include <linux/node.h>
+#include <asm/numa.h>
+
+void __init numa_setup(void)
+{
+	int nid;
+
+	nodes_clear(node_possible_map);
+	node_set(0, node_possible_map);
+	node_set_online(0);
+	for (nid = 0; nid < MAX_NUMNODES; nid++)
+		NODE_DATA(nid) = memblock_alloc_or_panic(sizeof(pg_data_t), 8);
+	NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT;
+	NODE_DATA(0)->node_id = 0;
+}