Subversion Repositories HelenOS

Rev

Rev 102 | Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2
 * Copyright (C) 2005 Jakub Jermar
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
#ifndef __FRAME_H__
30
#define __FRAME_H__
31
 
32
#include <arch/types.h>
33
 
34
#define FRAME_KA    1   /* skip frames conflicting with user address space */
35
#define FRAME_PANIC 2   /* panic on failure */
36
 
37
extern __u32 frames;
38
extern __u32 frames_free;
39
 
40
extern __u32 kernel_frames;
41
extern __u32 kernel_frames_free;
42
 
43
extern __u8 *frame_bitmap;
44
extern __u32 frame_bitmap_octets;
45
 
46
extern __u8 *frame_kernel_bitmap;
47
 
48
extern void frame_init(void);
49
 
50
__address frame_alloc(int flags);
51
extern void frame_free(__address addr);
52
extern void frame_not_free(__address addr);
53
extern void frame_region_not_free(__address start, __address stop);
54
 
55
#endif