Subversion Repositories HelenOS

Rev

Rev 2001 | Rev 2071 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2
 * Copyright (C) 2005 Jakub Jermar
480 bondari 3
 * Copyright (C) 2005 Sergey Bondari
1 jermar 4
 * All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 *
10
 * - Redistributions of source code must retain the above copyright
11
 *   notice, this list of conditions and the following disclaimer.
12
 * - Redistributions in binary form must reproduce the above copyright
13
 *   notice, this list of conditions and the following disclaimer in the
14
 *   documentation and/or other materials provided with the distribution.
15
 * - The name of the author may not be used to endorse or promote products
16
 *   derived from this software without specific prior written permission.
17
 *
18
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
 */
29
 
1854 jermar 30
/** @addtogroup genericmm
1702 cejka 31
 * @{
32
 */
33
/** @file
34
 */
35
 
1854 jermar 36
#ifndef KERN_FRAME_H_
37
#define KERN_FRAME_H_
1 jermar 38
 
39
#include <arch/types.h>
102 jermar 40
#include <typedefs.h>
788 jermar 41
#include <adt/list.h>
354 jermar 42
#include <synch/spinlock.h>
479 bondari 43
#include <mm/buddy.h>
814 palkovsky 44
#include <arch/mm/page.h>
935 vana 45
#include <arch/mm/frame.h>
1 jermar 46
 
548 jermar 47
#define ONE_FRAME   0
935 vana 48
#define TWO_FRAMES  1
548 jermar 49
 
935 vana 50
#ifdef ARCH_STACK_FRAMES
51
#define STACK_FRAMES ARCH_STACK_FRAMES
52
#else
53
#define STACK_FRAMES ONE_FRAME
54
#endif
55
 
2059 jermar 56
/** Maximum number of zones in system. */
57
#define ZONES_MAX           16
814 palkovsky 58
 
2059 jermar 59
/** If possible, merge with neighbouring zones. */
60
#define ZONE_JOIN           0x1
814 palkovsky 61
 
2059 jermar 62
/** Convert the frame address to kernel va. */
63
#define FRAME_KA        0x1
64
/** Do not panic and do not sleep on failure. */
65
#define FRAME_ATOMIC            0x2
66
/** Do not start reclaiming when no free memory. */
67
#define FRAME_NO_RECLAIM        0x4
1 jermar 68
 
1780 jermar 69
static inline uintptr_t PFN2ADDR(pfn_t frame)
814 palkovsky 70
{
2059 jermar 71
    return (uintptr_t) (frame << FRAME_WIDTH);
814 palkovsky 72
}
73
 
1780 jermar 74
static inline pfn_t ADDR2PFN(uintptr_t addr)
814 palkovsky 75
{
2059 jermar 76
    return (pfn_t) (addr >> FRAME_WIDTH);
814 palkovsky 77
}
78
 
820 jermar 79
static inline count_t SIZE2FRAMES(size_t size)
814 palkovsky 80
{
81
    if (!size)
82
        return 0;
2059 jermar 83
    return (count_t) ((size - 1) >> FRAME_WIDTH) + 1;
814 palkovsky 84
}
85
 
2059 jermar 86
#define IS_BUDDY_ORDER_OK(index, order)     \
87
    ((~(((unative_t) -1) << (order)) & (index)) == 0)
88
#define IS_BUDDY_LEFT_BLOCK(zone, frame)    \
89
    (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
90
#define IS_BUDDY_RIGHT_BLOCK(zone, frame)   \
91
    (((frame_index((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
92
#define IS_BUDDY_LEFT_BLOCK_ABS(zone, frame)    \
93
    (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 0)
94
#define IS_BUDDY_RIGHT_BLOCK_ABS(zone, frame)   \
95
    (((frame_index_abs((zone), (frame)) >> (frame)->buddy_order) & 0x1) == 1)
479 bondari 96
 
2059 jermar 97
#define frame_alloc(order, flags)       \
98
    frame_alloc_generic(order, flags, NULL)
786 bondari 99
 
1 jermar 100
extern void frame_init(void);
2059 jermar 101
extern void *frame_alloc_generic(uint8_t order, int flags, int *pzone);
1780 jermar 102
extern void frame_free(uintptr_t frame);
1236 jermar 103
extern void frame_reference_add(pfn_t pfn);
689 bondari 104
 
822 palkovsky 105
extern int zone_create(pfn_t start, count_t count, pfn_t confframe, int flags);
2059 jermar 106
void *frame_get_parent(pfn_t frame, int hint);
814 palkovsky 107
void frame_set_parent(pfn_t frame, void *data, int hint);
820 jermar 108
void frame_mark_unavailable(pfn_t start, count_t count);
1780 jermar 109
uintptr_t zone_conf_size(count_t count);
822 palkovsky 110
void zone_merge(int z1, int z2);
111
void zone_merge_all(void);
479 bondari 112
 
113
/*
676 bondari 114
 * Console functions
115
 */
116
extern void zone_print_list(void);
814 palkovsky 117
void zone_print_one(int znum);
676 bondari 118
 
1 jermar 119
#endif
1702 cejka 120
 
1854 jermar 121
/** @}
1702 cejka 122
 */