Merge master.kernel.org:/home/rmk/linux-2.6-mmc
[linux-2.6] / arch / mips / mm / pgtable-64.c
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 1999, 2000 by Silicon Graphics
7  * Copyright (C) 2003 by Ralf Baechle
8  */
9 #include <linux/init.h>
10 #include <linux/mm.h>
11 #include <asm/pgtable.h>
12
13 void pgd_init(unsigned long page)
14 {
15         unsigned long *p, *end;
16
17         p = (unsigned long *) page;
18         end = p + PTRS_PER_PGD;
19
20         while (p < end) {
21                 p[0] = (unsigned long) invalid_pmd_table;
22                 p[1] = (unsigned long) invalid_pmd_table;
23                 p[2] = (unsigned long) invalid_pmd_table;
24                 p[3] = (unsigned long) invalid_pmd_table;
25                 p[4] = (unsigned long) invalid_pmd_table;
26                 p[5] = (unsigned long) invalid_pmd_table;
27                 p[6] = (unsigned long) invalid_pmd_table;
28                 p[7] = (unsigned long) invalid_pmd_table;
29                 p += 8;
30         }
31 }
32
33 void pmd_init(unsigned long addr, unsigned long pagetable)
34 {
35         unsigned long *p, *end;
36
37         p = (unsigned long *) addr;
38         end = p + PTRS_PER_PMD;
39
40         while (p < end) {
41                 p[0] = (unsigned long)pagetable;
42                 p[1] = (unsigned long)pagetable;
43                 p[2] = (unsigned long)pagetable;
44                 p[3] = (unsigned long)pagetable;
45                 p[4] = (unsigned long)pagetable;
46                 p[5] = (unsigned long)pagetable;
47                 p[6] = (unsigned long)pagetable;
48                 p[7] = (unsigned long)pagetable;
49                 p += 8;
50         }
51 }
52
53 void __init pagetable_init(void)
54 {
55         /* Initialize the entire pgd.  */
56         pgd_init((unsigned long)swapper_pg_dir);
57         pmd_init((unsigned long)invalid_pmd_table, (unsigned long)invalid_pte_table);
58 }