| /* |
| * Written by: Patricia Gaughen <gone@us.ibm.com>, IBM Corporation |
| * August 2002: added remote node KVA remap - Martin J. Bligh |
| * |
| * Copyright (C) 2002, IBM Corp. |
| * |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| * NON INFRINGEMENT. See the GNU General Public License for more |
| * details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <linux/memblock.h> |
| #include <linux/init.h> |
| #include <asm/pgtable_areas.h> |
| |
| #include "numa_internal.h" |
| |
| extern unsigned long highend_pfn, highstart_pfn; |
| |
| void __init initmem_init(void) |
| { |
| x86_numa_init(); |
| |
| #ifdef CONFIG_HIGHMEM |
| highstart_pfn = highend_pfn = max_pfn; |
| if (max_pfn > max_low_pfn) |
| highstart_pfn = max_low_pfn; |
| printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", |
| pages_to_mb(highend_pfn - highstart_pfn)); |
| high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; |
| #else |
| high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; |
| #endif |
| printk(KERN_NOTICE "%ldMB LOWMEM available.\n", |
| pages_to_mb(max_low_pfn)); |
| printk(KERN_DEBUG "max_low_pfn = %lx, highstart_pfn = %lx\n", |
| max_low_pfn, highstart_pfn); |
| |
| printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n", |
| (ulong) pfn_to_kaddr(max_low_pfn)); |
| |
| printk(KERN_DEBUG "High memory starts at vaddr %08lx\n", |
| (ulong) pfn_to_kaddr(highstart_pfn)); |
| |
| __vmalloc_start_set = true; |
| setup_bootmem_allocator(); |
| } |