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1da177e4 LT |
1 | /* kmap.c: ioremapping handlers |
2 | * | |
3 | * Copyright (C) 2003-5 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * - Derived from arch/m68k/mm/kmap.c | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | */ | |
12 | ||
1da177e4 LT |
13 | #include <linux/mm.h> |
14 | #include <linux/kernel.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/types.h> | |
17 | #include <linux/vmalloc.h> | |
18 | ||
19 | #include <asm/setup.h> | |
20 | #include <asm/segment.h> | |
21 | #include <asm/page.h> | |
22 | #include <asm/pgalloc.h> | |
23 | #include <asm/io.h> | |
24 | #include <asm/system.h> | |
25 | ||
26 | #undef DEBUG | |
27 | ||
28 | /*****************************************************************************/ | |
29 | /* | |
30 | * Map some physical address range into the kernel address space. | |
31 | */ | |
32 | ||
3f4cd389 | 33 | void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) |
1da177e4 | 34 | { |
3f4cd389 | 35 | return (void __iomem *)physaddr; |
1da177e4 LT |
36 | } |
37 | ||
38 | /* | |
39 | * Unmap a ioremap()ed region again | |
40 | */ | |
3f4cd389 | 41 | void iounmap(void volatile __iomem *addr) |
1da177e4 LT |
42 | { |
43 | } | |
44 | ||
1da177e4 LT |
45 | /* |
46 | * Set new cache mode for some kernel address space. | |
47 | * The caller must push data for that range itself, if such data may already | |
48 | * be in the cache. | |
49 | */ | |
50 | void kernel_set_cachemode(void *addr, unsigned long size, int cmode) | |
51 | { | |
52 | } |