5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
43 lines
927 B
C
43 lines
927 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* NUMA support for s390
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*
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* Implement NUMA core code.
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*
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* Copyright IBM Corp. 2015
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*/
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#include <linux/kernel.h>
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#include <linux/mmzone.h>
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#include <linux/cpumask.h>
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#include <linux/memblock.h>
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#include <linux/node.h>
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#include <asm/numa.h>
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struct pglist_data *node_data[MAX_NUMNODES];
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EXPORT_SYMBOL(node_data);
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void __init numa_setup(void)
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{
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int nid;
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nodes_clear(node_possible_map);
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node_set(0, node_possible_map);
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node_set_online(0);
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for (nid = 0; nid < MAX_NUMNODES; nid++) {
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NODE_DATA(nid) = memblock_alloc(sizeof(pg_data_t), 8);
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if (!NODE_DATA(nid))
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panic("%s: Failed to allocate %zu bytes align=0x%x\n",
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__func__, sizeof(pg_data_t), 8);
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}
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NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT;
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NODE_DATA(0)->node_id = 0;
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}
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static int __init numa_init_late(void)
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{
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register_one_node(0);
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return 0;
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}
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arch_initcall(numa_init_late);
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