1/* 2 * Written by: Patricia Gaughen <gone@us.ibm.com>, IBM Corporation 3 * August 2002: added remote node KVA remap - Martin J. Bligh 4 * 5 * Copyright (C) 2002, IBM Corp. 6 * 7 * All rights reserved. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 17 * NON INFRINGEMENT. See the GNU General Public License for more 18 * details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 */ 24 25#include <linux/memblock.h> 26#include <linux/init.h> 27 28#include "numa_internal.h" 29 30extern unsigned long highend_pfn, highstart_pfn; 31 32void __init initmem_init(void) 33{ 34 x86_numa_init(); 35 36#ifdef CONFIG_HIGHMEM 37 highstart_pfn = highend_pfn = max_pfn; 38 if (max_pfn > max_low_pfn) 39 highstart_pfn = max_low_pfn; 40 printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", 41 pages_to_mb(highend_pfn - highstart_pfn)); 42 high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; 43#else 44 high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; 45#endif 46 printk(KERN_NOTICE "%ldMB LOWMEM available.\n", 47 pages_to_mb(max_low_pfn)); 48 printk(KERN_DEBUG "max_low_pfn = %lx, highstart_pfn = %lx\n", 49 max_low_pfn, highstart_pfn); 50 51 printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n", 52 (ulong) pfn_to_kaddr(max_low_pfn)); 53 54 printk(KERN_DEBUG "High memory starts at vaddr %08lx\n", 55 (ulong) pfn_to_kaddr(highstart_pfn)); 56 57 __vmalloc_start_set = true; 58 setup_bootmem_allocator(); 59} 60