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1da177e4 LT |
1 | /* |
2 | * linux/arch/m32r/mm/ioremap-nommu.c | |
3 | * | |
4 | * Copyright (c) 2001, 2002 Hiroyuki Kondo | |
5 | * | |
6 | * Taken from mips version. | |
7 | * (C) Copyright 1995 1996 Linus Torvalds | |
8 | * (C) Copyright 2001 Ralf Baechle | |
9 | */ | |
10 | ||
11 | /* | |
12 | * This file is subject to the terms and conditions of the GNU General Public | |
13 | * License. See the file "COPYING" in the main directory of this archive | |
14 | * for more details. | |
15 | * | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <asm/addrspace.h> | |
20 | #include <asm/byteorder.h> | |
21 | ||
22 | #include <linux/vmalloc.h> | |
23 | #include <asm/io.h> | |
24 | #include <asm/pgalloc.h> | |
25 | #include <asm/cacheflush.h> | |
26 | #include <asm/tlbflush.h> | |
27 | ||
28 | ||
29 | /* | |
30 | * Remap an arbitrary physical address space into the kernel virtual | |
31 | * address space. Needed when the kernel wants to access high addresses | |
32 | * directly. | |
33 | * | |
34 | * NOTE! We need to allow non-page-aligned mappings too: we will obviously | |
35 | * have to convert them into an offset in a page-aligned mapping, but the | |
36 | * caller shouldn't need to know that small detail. | |
37 | */ | |
38 | ||
39 | #define IS_LOW512(addr) (!((unsigned long)(addr) & ~0x1fffffffUL)) | |
40 | ||
41 | void __iomem * | |
42 | __ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags) | |
43 | { | |
44 | return (void *)phys_addr; | |
45 | } | |
46 | ||
47 | #define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == KSEG1) | |
48 | ||
49 | void iounmap(volatile void __iomem *addr) | |
50 | { | |
51 | } | |
52 |