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s390/numa: move code to arch/s390/kernel

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Move all code from arch/s390/numa/ to arch/s390/kernel/
since numa.c is the only source file and all others were
deleted with the fake NUMA support removal.

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Alexander Gordeev
2020-08-04 20:35:50 +02:00
committed by Heiko Carstens
parent 12bbf0962a
commit b450eeb0c9
4 changed files with 1 additions and 3 deletions
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42
arch/s390/kernel/numa.c Normal file
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@@ -0,0 +1,42 @@
// 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);