Subversion Repositories HelenOS

Rev

Rev 3908 | Rev 4669 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2128 jermar 1
/*
2465 jermar 2
 * Copyright (c) 2007 Pavel Jancik, Michal Kebrt
2128 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
 
3973 decky 29
/** @addtogroup arm32mm
2128 jermar 30
 * @{
31
 */
32
/** @file
2465 jermar 33
 *  @brief Frame related functions.
2128 jermar 34
 */
35
 
36
#include <mm/frame.h>
2465 jermar 37
#include <arch/mm/frame.h>
2725 decky 38
#include <arch/machine.h>
2465 jermar 39
#include <config.h>
40
#include <arch/debug/print.h>
2128 jermar 41
 
2465 jermar 42
/** Address of the last frame in the memory. */
43
uintptr_t last_frame = 0;
44
 
45
/** Creates memory zones. */
2128 jermar 46
void frame_arch_init(void)
47
{
2465 jermar 48
    /* all memory as one zone */
2725 decky 49
    zone_create(0, ADDR2PFN(machine_get_memory_size()),
2465 jermar 50
        BOOT_PAGE_TABLE_START_FRAME + BOOT_PAGE_TABLE_SIZE_IN_FRAMES, 0);
2725 decky 51
    last_frame = machine_get_memory_size();
3908 decky 52
 
2465 jermar 53
    /* blacklist boot page table */
54
    frame_mark_unavailable(BOOT_PAGE_TABLE_START_FRAME,
55
        BOOT_PAGE_TABLE_SIZE_IN_FRAMES);
2128 jermar 56
}
57
 
2465 jermar 58
/** Frees the boot page table. */
59
void boot_page_table_free(void)
60
{
61
    int i;
62
    for (i = 0; i < BOOT_PAGE_TABLE_SIZE_IN_FRAMES; i++) {
63
        frame_free(i * FRAME_SIZE + BOOT_PAGE_TABLE_ADDRESS);
64
    }
65
}
66
 
2128 jermar 67
/** @}
68
 */