source: mainline/kernel/arch/arm32/include/mm/frame.h@ ae318d3

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ae318d3 was ae318d3, checked in by Martin Decky <martin@…>, 16 years ago

overhaul pareas: use one single physical area for the physical address space not belonging to physical memory

  • Property mode set to 100644
File size: 2.2 KB
Line 
1/*
2 * Copyright (c) 2007 Pavel Jancik, Michal Kebrt
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup arm32mm
30 * @{
31 */
32/** @file
33 * @brief Frame related declarations.
34 */
35
36#ifndef KERN_arm32_FRAME_H_
37#define KERN_arm32_FRAME_H_
38
39#define FRAME_WIDTH 12 /* 4KB frames */
40#define FRAME_SIZE (1 << FRAME_WIDTH)
41
42#ifdef KERNEL
43#ifndef __ASM__
44
45#include <arch/types.h>
46
47#define BOOT_PAGE_TABLE_SIZE 0x4000
48#define BOOT_PAGE_TABLE_ADDRESS 0x4000
49
50#define BOOT_PAGE_TABLE_START_FRAME (BOOT_PAGE_TABLE_ADDRESS >> FRAME_WIDTH)
51#define BOOT_PAGE_TABLE_SIZE_IN_FRAMES (BOOT_PAGE_TABLE_SIZE >> FRAME_WIDTH)
52
53extern uintptr_t last_frame;
54extern uintptr_t end_frame;
55
56extern void frame_arch_init(void);
57extern void boot_page_table_free(void);
58#define physmem_print()
59
60#endif /* __ASM__ */
61#endif /* KERNEL */
62
63#endif
64
65/** @}
66 */
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