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42 lines
927 B
42 lines
927 B
// 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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