source: mainline/kernel/arch/arm32/include/mm/as.h@ 3063d56

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 3063d56 was 3063d56, checked in by Jakub Jermar <jakub@…>, 16 years ago

Do not flush TLB every time a thread is scheduled. Flush TLB only when a new
address space is installed.

  • Property mode set to 100644
File size: 2.3 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 Address space manipulating functions declarations.
34 */
35
36#ifndef KERN_arm32_AS_H_
37#define KERN_arm32_AS_H_
38
39#define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH 0
40
41#define KERNEL_ADDRESS_SPACE_START_ARCH (unsigned long) 0x80000000
42#define KERNEL_ADDRESS_SPACE_END_ARCH (unsigned long) 0xffffffff
43#define USER_ADDRESS_SPACE_START_ARCH (unsigned long) 0x00000000
44#define USER_ADDRESS_SPACE_END_ARCH (unsigned long) 0x7fffffff
45
46#define USTACK_ADDRESS_ARCH (0x80000000 - PAGE_SIZE)
47
48typedef struct {
49} as_arch_t;
50
51#include <genarch/mm/as_pt.h>
52
53#define as_constructor_arch(as, flags) (as != as)
54#define as_destructor_arch(as) (as != as)
55#define as_create_arch(as, flags) (as != as)
56#define as_deinstall_arch(as)
57#define as_invalidate_translation_cache(as, page, cnt)
58
59extern void as_arch_init(void);
60
61#endif
62
63/** @}
64 */
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