Subversion Repositories HelenOS

Rev

Rev 3972 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1 jermar 1
/*
2701 jermar 2
 * Copyright (c) 2008 Jakub Jermar
1 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
 
1888 jermar 29
/** @addtogroup ia32mm 
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 * @ingroup ia32mm, amd64mm
34
 */
35
 
1 jermar 36
#include <mm/frame.h>
37
#include <arch/mm/frame.h>
703 jermar 38
#include <mm/as.h>
1 jermar 39
#include <config.h>
267 decky 40
#include <arch/boot/boot.h>
139 cejka 41
#include <arch/boot/memmap.h>
368 jermar 42
#include <panic.h>
533 bondari 43
#include <debug.h>
540 jermar 44
#include <align.h>
814 palkovsky 45
#include <macros.h>
1 jermar 46
 
814 palkovsky 47
#include <print.h>
48
 
267 decky 49
size_t hardcoded_unmapped_ktext_size = 0;
50
size_t hardcoded_unmapped_kdata_size = 0;
139 cejka 51
 
1780 jermar 52
uintptr_t last_frame = 0;
540 jermar 53
 
814 palkovsky 54
static void init_e820_memory(pfn_t minconf)
55
{
2721 decky 56
    unsigned int i;
814 palkovsky 57
    for (i = 0; i < e820counter; i++) {
3973 decky 58
        uint64_t base = e820table[i].base_address;
59
        uint64_t size = e820table[i].size;
60
 
61
#ifdef __32_BITS__
62
 
63
        /* Ignore physical memory above 4 GB */
64
        if ((base >> 32) != 0)
65
            continue;
66
 
67
        /* Clip regions above 4 GB */
68
        if (((base + size) >> 32) != 0)
69
            size = 0xffffffff - base;
70
 
71
#endif
72
        pfn_t pfn;
73
        count_t count;
74
 
814 palkovsky 75
        if (e820table[i].type == MEMMAP_MEMORY_AVAILABLE) {
3973 decky 76
            /* To be safe, make available zone possibly smaller */
77
            pfn = ADDR2PFN(ALIGN_UP(base, FRAME_SIZE));
78
            count = SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE));
2721 decky 79
 
3973 decky 80
            pfn_t conf;
81
            if ((minconf < pfn) || (minconf >= pfn + count))
82
                conf = pfn;
814 palkovsky 83
            else
84
                conf = minconf;
2721 decky 85
 
3973 decky 86
            zone_create(pfn, count, conf, ZONE_AVAILABLE);
2721 decky 87
 
3973 decky 88
            // XXX this has to be removed
89
            if (last_frame < ALIGN_UP(base + size, FRAME_SIZE))
90
                last_frame = ALIGN_UP(base + size, FRAME_SIZE);
3908 decky 91
        }
3973 decky 92
 
93
        if (e820table[i].type == MEMMAP_MEMORY_RESERVED) {
94
            /* To be safe, make reserved zone possibly larger */
95
            pfn = ADDR2PFN(ALIGN_DOWN(base, FRAME_SIZE));
96
            count = SIZE2FRAMES(ALIGN_UP(size, FRAME_SIZE));
97
 
98
            zone_create(pfn, count, 0, ZONE_RESERVED);
99
        }
100
 
101
        if (e820table[i].type == MEMMAP_MEMORY_ACPI) {
102
            /* To be safe, make firmware zone possibly larger */
103
            pfn = ADDR2PFN(ALIGN_DOWN(base, (uintptr_t) FRAME_SIZE));
104
            count = SIZE2FRAMES(ALIGN_UP(size, (uintptr_t) FRAME_SIZE));
105
 
106
            zone_create(pfn, count, 0, ZONE_FIRMWARE);
107
        }
814 palkovsky 108
    }
109
}
110
 
2702 decky 111
static char *e820names[] = {
112
    "invalid",
113
    "available",
114
    "reserved",
115
    "acpi",
116
    "nvs",
117
    "unusable"
118
};
814 palkovsky 119
 
120
 
2721 decky 121
void physmem_print(void)
814 palkovsky 122
{
2712 decky 123
    unsigned int i;
814 palkovsky 124
    char *name;
2712 decky 125
 
126
    printf("Base               Size               Name\n");
127
    printf("------------------ ------------------ ---------\n");
128
 
814 palkovsky 129
    for (i = 0; i < e820counter; i++) {
130
        if (e820table[i].type <= MEMMAP_MEMORY_UNUSABLE)
131
            name = e820names[e820table[i].type];
132
        else
133
            name = "invalid";
2712 decky 134
 
135
        printf("%#18llx %#18llx %s\n", e820table[i].base_address,
136
            e820table[i].size, name);
2723 decky 137
    }
814 palkovsky 138
}
139
 
140
 
1 jermar 141
void frame_arch_init(void)
142
{
2721 decky 143
    pfn_t minconf;
2697 decky 144
 
1 jermar 145
    if (config.cpu_active == 1) {
814 palkovsky 146
        minconf = 1;
3908 decky 147
 
814 palkovsky 148
#ifdef CONFIG_SMP
149
        minconf = max(minconf,
2721 decky 150
            ADDR2PFN(AP_BOOT_OFFSET + hardcoded_unmapped_ktext_size +
151
            hardcoded_unmapped_kdata_size));
814 palkovsky 152
#endif
153
        init_e820_memory(minconf);
3908 decky 154
 
533 bondari 155
        /* Reserve frame 0 (BIOS data) */
814 palkovsky 156
        frame_mark_unavailable(0, 1);
533 bondari 157
 
693 decky 158
#ifdef CONFIG_SMP
159
        /* Reserve AP real mode bootstrap memory */
814 palkovsky 160
        frame_mark_unavailable(AP_BOOT_OFFSET >> FRAME_WIDTH,
2721 decky 161
            (hardcoded_unmapped_ktext_size +
162
            hardcoded_unmapped_kdata_size) >> FRAME_WIDTH);
693 decky 163
#endif
1 jermar 164
    }
165
}
1702 cejka 166
 
1888 jermar 167
/** @}
1702 cejka 168
 */