Subversion Repositories HelenOS

Rev

Rev 2071 | Rev 2725 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
162 decky 1 
/*
2071 jermar 2 
 * Copyright (c) 2005 Martin Decky
162 decky 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 
 
1726 decky 29 
/** @addtogroup ppc32mm
1702 cejka 30 
 * @{
31 
 */
32 
/** @file
33 
 */
34 
 
1132 decky 35 
#include <arch/boot/boot.h>
162 decky 36 
#include <arch/mm/frame.h>
843 palkovsky 37 
#include <arch/mm/memory_init.h>
162 decky 38 
#include <mm/frame.h>
972 decky 39 
#include <align.h>
40 
#include <macros.h>
2723 decky 41 
#include <print.h>
162 decky 42 
 
1780 jermar 43 
uintptr_t last_frame = 0;
972 decky 44 
 
2723 decky 45 
void physmem_print(void)
46 
{
47 
    unsigned int i;
48 
 
49 
    printf("Base       Size\n");
50 
    printf("---------- ----------\n");
51 
 
52 
    for (i = 0; i < bootinfo.memmap.count; i++) {
53 
        printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start,
54 
            bootinfo.memmap.zones[i].size);
55 
    }
56 
}
57 
 
162 decky 58 
void frame_arch_init(void)
59 
{
972 decky 60 
    pfn_t minconf = 2;
61 
    count_t i;
62 
    pfn_t start, conf;
63 
    size_t size;
64 
 
1132 decky 65 
    for (i = 0; i < bootinfo.memmap.count; i++) {
66 
        start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE));
67 
        size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE));
972 decky 68 
 
69 
        if ((minconf < start) || (minconf >= start + size))
70 
            conf = start;
71 
        else
72 
            conf = minconf;
73 
 
74 
        zone_create(start, size, conf, 0);
1132 decky 75 
        if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE))
76 
            last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE);
972 decky 77 
    }
78 
 
1716 decky 79 
    /* First is exception vector, second is 'implementation specific',
80 
       third and fourth is reserved, other contain real mode code */
81 
    frame_mark_unavailable(0, 8);
972 decky 82 
 
1730 decky 83 
    /* Mark the Page Hash Table frames as unavailable */
1780 jermar 84 
    uint32_t sdr1;
1730 decky 85 
    asm volatile (
86 
        "mfsdr1 %0\n"
87 
        : "=r" (sdr1)
88 
    );
89 
    frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME
162 decky 90 
}
1702 cejka 91 
 
1726 decky 92 
/** @}
1702 cejka 93 
 */