Subversion Repositories HelenOS

Rev

Rev 4227 | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
396 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
396 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
 */
2028 decky 28
 
396 jermar 29
#include <print.h>
30
#include <test.h>
31
#include <mm/page.h>
32
#include <mm/frame.h>
755 jermar 33
#include <mm/as.h>
396 jermar 34
#include <arch/mm/page.h>
35
#include <arch/types.h>
36
#include <debug.h>
37
 
4227 decky 38
#define PAGE0  0x10000000
39
#define PAGE1  (PAGE0 + PAGE_SIZE)
396 jermar 40
 
4227 decky 41
#define VALUE0  0x01234567
42
#define VALUE1  0x89abcdef
396 jermar 43
 
4227 decky 44
char *test_mapping1(void)
396 jermar 45
{
1780 jermar 46
    uintptr_t frame0, frame1;
47
    uint32_t v0, v1;
4227 decky 48
 
2021 decky 49
    frame0 = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_KA);
50
    frame1 = (uintptr_t) frame_alloc(ONE_FRAME, FRAME_KA);
2053 decky 51
 
4227 decky 52
    TPRINTF("Writing %#x to physical address %p.\n", VALUE0, KA2PA(frame0));
1780 jermar 53
    *((uint32_t *) frame0) = VALUE0;
4227 decky 54
 
55
    TPRINTF("Writing %#x to physical address %p.\n", VALUE1, KA2PA(frame1));
1780 jermar 56
    *((uint32_t *) frame1) = VALUE1;
396 jermar 57
 
4227 decky 58
    TPRINTF("Mapping virtual address %p to physical address %p.\n", PAGE0, KA2PA(frame0));
756 jermar 59
    page_mapping_insert(AS_KERNEL, PAGE0, KA2PA(frame0), PAGE_PRESENT | PAGE_WRITE);
4227 decky 60
 
61
    TPRINTF("Mapping virtual address %p to physical address %p.\n", PAGE1, KA2PA(frame1));
756 jermar 62
    page_mapping_insert(AS_KERNEL, PAGE1, KA2PA(frame1), PAGE_PRESENT | PAGE_WRITE);
396 jermar 63
 
2053 decky 64
    v0 = *((uint32_t *) PAGE0);
65
    v1 = *((uint32_t *) PAGE1);
4227 decky 66
    TPRINTF("Value at virtual address %p is %#x.\n", PAGE0, v0);
67
    TPRINTF("Value at virtual address %p is %#x.\n", PAGE1, v1);
396 jermar 68
 
2029 decky 69
    if (v0 != VALUE0)
70
        return "Value at v0 not equal to VALUE0";
71
    if (v1 != VALUE1)
72
        return "Value at v1 not equal to VALUE1";
2053 decky 73
 
4227 decky 74
    TPRINTF("Writing %#x to virtual address %p.\n", 0, PAGE0);
1780 jermar 75
    *((uint32_t *) PAGE0) = 0;
4227 decky 76
 
77
    TPRINTF("Writing %#x to virtual address %p.\n", 0, PAGE1);
78
    *((uint32_t *) PAGE1) = 0;
79
 
1780 jermar 80
    v0 = *((uint32_t *) PAGE0);
81
    v1 = *((uint32_t *) PAGE1);
396 jermar 82
 
4227 decky 83
    TPRINTF("Value at virtual address %p is %#x.\n", PAGE0, *((uint32_t *) PAGE0));
84
    TPRINTF("Value at virtual address %p is %#x.\n", PAGE1, *((uint32_t *) PAGE1));
85
 
2029 decky 86
    if (v0 != 0)
87
        return "Value at v0 not equal to 0";
88
    if (v1 != 0)
89
        return "Value at v1 not equal to 0";
396 jermar 90
 
4227 decky 91
    return NULL;
396 jermar 92
}