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// 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>
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
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(sizeof(pg_data_t), 8);
if (!NODE_DATA(nid))
panic("%s: Failed to allocate %zu bytes align=0x%x\n",
__func__, sizeof(pg_data_t), 8);
}
NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT;
NODE_DATA(0)->node_id = 0;
}
static int __init numa_init_late(void)
{
register_one_node(0);
return 0;
}
arch_initcall(numa_init_late);
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