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 
 */