Subversion Repositories HelenOS

Rev

Rev 4055 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
426 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
426 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
 
4055 trochtova 29
/** @addtogroup sparc64mm
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
426 jermar 35
#include <arch/mm/frame.h>
36
#include <mm/frame.h>
1790 jermar 37
#include <arch/boot/boot.h>
1793 jermar 38
#include <arch/types.h>
426 jermar 39
#include <config.h>
820 jermar 40
#include <align.h>
1793 jermar 41
#include <macros.h>
426 jermar 42
 
1793 jermar 43
uintptr_t last_frame = NULL;
44
 
1790 jermar 45
/** Create memory zones according to information stored in bootinfo.
46
 *
47
 * Walk the bootinfo memory map and create frame zones according to it.
48
 */
426 jermar 49
void frame_arch_init(void)
50
{
2745 decky 51
    unsigned int i;
1790 jermar 52
    pfn_t confdata;
815 jermar 53
 
1903 jermar 54
    if (config.cpu_active == 1) {
55
        for (i = 0; i < bootinfo.memmap.count; i++) {
56
            uintptr_t start = bootinfo.memmap.zones[i].start;
57
            size_t size = bootinfo.memmap.zones[i].size;
1790 jermar 58
 
1903 jermar 59
            /*
60
             * The memmap is created by HelenOS boot loader.
61
             * It already contains no holes.
62
             */
1988 jermar 63
 
1903 jermar 64
            confdata = ADDR2PFN(start);
1983 jermar 65
            if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))
66
                confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));
2048 jermar 67
            zone_create(ADDR2PFN(start),
2267 jermar 68
                SIZE2FRAMES(ALIGN_DOWN(size, FRAME_SIZE)),
69
                confdata, 0);
2048 jermar 70
            last_frame = max(last_frame, start + ALIGN_UP(size,
2267 jermar 71
                FRAME_SIZE));
1903 jermar 72
        }
1988 jermar 73
 
74
        /*
75
         * On sparc64, physical memory can start on a non-zero address.
76
         * The generic frame_init() only marks PFN 0 as not free, so we
2048 jermar 77
         * must mark the physically first frame not free explicitly
78
         * here, no matter what is its address.
1988 jermar 79
         */
80
        frame_mark_unavailable(ADDR2PFN(KA2PA(PFN2ADDR(0))), 1);
1790 jermar 81
    }
4296 trochtova 82
 
83
    end_of_identity = PA2KA(last_frame);
426 jermar 84
}
1702 cejka 85
 
1784 jermar 86
/** @}
1702 cejka 87
 */