Subversion Repositories HelenOS

Rev

Rev 3776 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
368 jermar 1
/*
2071 jermar 2
 * Copyright (c) 2005 Jakub Jermar
368 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 ia64mm 
1702 cejka 30
 * @{
31
 */
32
/** @file
33
 */
34
 
368 jermar 35
#include <arch/mm/frame.h>
36
#include <mm/frame.h>
37
#include <config.h>
38
#include <panic.h>
3616 vana 39
#include <arch/bootinfo.h>
40
#include <align.h>
41
#include <macros.h>
368 jermar 42
 
3765 jermar 43
#define KERNEL_RESERVED_AREA_BASE   (0x4400000)
44
#define KERNEL_RESERVED_AREA_SIZE   (16 * 1024 * 1024)
3616 vana 45
 
3765 jermar 46
#define ROM_BASE    0xa0000               /* for simulators */
47
#define ROM_SIZE    (384 * 1024)          /* for simulators */
3578 vana 48
 
3765 jermar 49
#define MIN_ZONE_SIZE   (64 * 1024)
3578 vana 50
 
3765 jermar 51
#define MINCONF 1
3616 vana 52
 
3776 jermar 53
uintptr_t last_frame = 0;
3908 decky 54
uintptr_t end_frame = 0;
3578 vana 55
 
368 jermar 56
void frame_arch_init(void)
57
{
3765 jermar 58
    if (config.cpu_active == 1) {
3616 vana 59
        unsigned int i;
3765 jermar 60
        for (i = 0; i < bootinfo->memmap_items; i++) {
61
            if (bootinfo->memmap[i].type == EFI_MEMMAP_FREE_MEM) {
62
                uint64_t base = bootinfo->memmap[i].base;
63
                uint64_t size = bootinfo->memmap[i].size;
64
                uint64_t abase = ALIGN_UP(base, FRAME_SIZE);
3616 vana 65
 
3765 jermar 66
                if (size > FRAME_SIZE)
67
                    size -= abase - base;
68
 
69
                if (size > MIN_ZONE_SIZE) {
70
                    zone_create(abase >> FRAME_WIDTH,
71
                        size >> FRAME_WIDTH,
72
                        max(MINCONF, abase >> FRAME_WIDTH),
73
                        0);
3776 jermar 74
                }
75
                if (abase + size > last_frame)
76
                    last_frame = abase + size;
3616 vana 77
            }
78
        }
79
 
3578 vana 80
        /*
3765 jermar 81
         * Blacklist ROM regions.
82
         */
83
        frame_mark_unavailable(ADDR2PFN(ROM_BASE),
84
            SIZE2FRAMES(ROM_SIZE));
3578 vana 85
 
3765 jermar 86
        frame_mark_unavailable(ADDR2PFN(KERNEL_RESERVED_AREA_BASE),
87
            SIZE2FRAMES(KERNEL_RESERVED_AREA_SIZE));
3578 vana 88
    }  
368 jermar 89
}
1702 cejka 90
 
1888 jermar 91
/** @}
1702 cejka 92
 */