| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |  | 
| Al Viro | 3f4cd38 | 2006-06-23 02:04:03 -0700 | [diff] [blame] | 33 | void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | { | 
| Al Viro | 3f4cd38 | 2006-06-23 02:04:03 -0700 | [diff] [blame] | 35 | return (void __iomem *)physaddr; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | } | 
|  | 37 |  | 
|  | 38 | /* | 
|  | 39 | * Unmap a ioremap()ed region again | 
|  | 40 | */ | 
| Al Viro | 3f4cd38 | 2006-06-23 02:04:03 -0700 | [diff] [blame] | 41 | void iounmap(void volatile __iomem *addr) | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | { | 
|  | 43 | } | 
|  | 44 |  | 
|  | 45 | /* | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | } |