cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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numa.c (818B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * NUMA support for s390
      4 *
      5 * Implement NUMA core code.
      6 *
      7 * Copyright IBM Corp. 2015
      8 */
      9
     10#include <linux/kernel.h>
     11#include <linux/mmzone.h>
     12#include <linux/cpumask.h>
     13#include <linux/memblock.h>
     14#include <linux/node.h>
     15#include <asm/numa.h>
     16
     17struct pglist_data *node_data[MAX_NUMNODES];
     18EXPORT_SYMBOL(node_data);
     19
     20void __init numa_setup(void)
     21{
     22	int nid;
     23
     24	nodes_clear(node_possible_map);
     25	node_set(0, node_possible_map);
     26	node_set_online(0);
     27	for (nid = 0; nid < MAX_NUMNODES; nid++) {
     28		NODE_DATA(nid) = memblock_alloc(sizeof(pg_data_t), 8);
     29		if (!NODE_DATA(nid))
     30			panic("%s: Failed to allocate %zu bytes align=0x%x\n",
     31			      __func__, sizeof(pg_data_t), 8);
     32	}
     33	NODE_DATA(0)->node_spanned_pages = memblock_end_of_DRAM() >> PAGE_SHIFT;
     34	NODE_DATA(0)->node_id = 0;
     35}