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 | #include <asm/pgtable_areas.h> |
28 | |
29 | #include "numa_internal.h" |
30 | |
31 | extern unsigned long highend_pfn, highstart_pfn; |
32 | |
33 | void __init initmem_init(void) |
34 | { |
35 | x86_numa_init(); |
36 | |
37 | #ifdef CONFIG_HIGHMEM |
38 | highstart_pfn = highend_pfn = max_pfn; |
39 | if (max_pfn > max_low_pfn) |
40 | highstart_pfn = max_low_pfn; |
41 | printk(KERN_NOTICE "%ldMB HIGHMEM available.\n" , |
42 | pages_to_mb(highend_pfn - highstart_pfn)); |
43 | high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; |
44 | #else |
45 | high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; |
46 | #endif |
47 | printk(KERN_NOTICE "%ldMB LOWMEM available.\n" , |
48 | pages_to_mb(max_low_pfn)); |
49 | printk(KERN_DEBUG "max_low_pfn = %lx, highstart_pfn = %lx\n" , |
50 | max_low_pfn, highstart_pfn); |
51 | |
52 | printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n" , |
53 | (ulong) pfn_to_kaddr(max_low_pfn)); |
54 | |
55 | printk(KERN_DEBUG "High memory starts at vaddr %08lx\n" , |
56 | (ulong) pfn_to_kaddr(highstart_pfn)); |
57 | |
58 | __vmalloc_start_set = true; |
59 | setup_bootmem_allocator(); |
60 | } |
61 | |