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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Russell King4baa9922008-08-02 10:55:55 +01002 * arch/arm/include/asm/map.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
4 * Copyright (C) 1999-2000 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 *
10 * Page table mapping constructs and function prototypes
11 */
Rob Herringc2794432012-02-29 18:10:58 -060012#ifndef __ASM_MACH_MAP_H
13#define __ASM_MACH_MAP_H
14
Russell King3603ab22007-05-05 20:59:27 +010015#include <asm/io.h>
16
Linus Torvalds1da177e2005-04-16 15:20:36 -070017struct map_desc {
18 unsigned long virtual;
Deepak Saxena9769c242005-10-28 15:19:11 +010019 unsigned long pfn;
Linus Torvalds1da177e2005-04-16 15:20:36 -070020 unsigned long length;
21 unsigned int type;
22};
23
Russell Kingdb5b7162008-09-07 12:42:51 +010024/* types 0-3 are defined in asm/io.h */
Russell Kingebb4c652008-11-09 11:18:36 +000025#define MT_UNCACHED 4
26#define MT_CACHECLEAN 5
27#define MT_MINICLEAN 6
28#define MT_LOW_VECTORS 7
29#define MT_HIGH_VECTORS 8
30#define MT_MEMORY 9
31#define MT_ROM 10
Paul Walmsleye4707dd2009-03-12 20:11:43 +010032#define MT_MEMORY_NONCACHED 11
Linus Walleijcb9d7702010-07-12 21:50:59 +010033#define MT_MEMORY_DTCM 12
34#define MT_MEMORY_ITCM 13
Santosh Shilimkar8fb54282011-06-28 12:42:56 -070035#define MT_MEMORY_SO 14
Marek Szyprowskic7909502011-12-29 13:09:51 +010036#define MT_MEMORY_DMA_READY 15
Russell King0af92be2007-05-05 20:28:16 +010037
Russell King092c1952006-06-24 17:34:50 +010038#ifdef CONFIG_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -070039extern void iotable_init(struct map_desc *, int);
Rob Herringc2794432012-02-29 18:10:58 -060040extern void vm_reserve_area_early(unsigned long addr, unsigned long size,
41 void *caller);
Hiroshi DOYU69d3a842009-01-28 21:32:08 +020042
43struct mem_type;
44extern const struct mem_type *get_mem_type(unsigned int type);
45/*
46 * external interface to remap single page with appropriate type
47 */
48extern int ioremap_page(unsigned long virt, unsigned long phys,
49 const struct mem_type *mtype);
Russell King092c1952006-06-24 17:34:50 +010050#else
51#define iotable_init(map,num) do { } while (0)
Rob Herringc2794432012-02-29 18:10:58 -060052#define vm_reserve_area_early(a,s,c) do { } while (0)
53#endif
54
Russell King092c1952006-06-24 17:34:50 +010055#endif