source: mainline/kernel/arch/ppc64/src/mm/frame.c@ 71eef11

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 71eef11 was 71eef11, checked in by Martin Decky <martin@…>, 17 years ago

remove config.memory_size, get_memory_size() and memory_init.{c|d}
the amount of available memory can be calculated from the sizes of the zones
add FRAMES2SIZE, SIZE2KB and SIZE2MB functions/macros (code readability)

  • Property mode set to 100644
File size: 2.7 KB
Line 
1/*
2 * Copyright (c) 2005 Martin 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
29/** @addtogroup ppc64mm
30 * @{
31 */
32/** @file
33 */
34
35#include <arch/boot/boot.h>
36#include <arch/mm/frame.h>
37#include <mm/frame.h>
38#include <align.h>
39#include <macros.h>
40#include <print.h>
41
42uintptr_t last_frame = 0;
43
44void physmem_print(void)
45{
46 unsigned int i;
47
48 printf("Base Size\n");
49 printf("---------- ----------\n");
50
51 for (i = 0; i < bootinfo.memmap.count; i++) {
52 printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start,
53 bootinfo.memmap.zones[i].size);
54 }
55}
56
57void frame_arch_init(void)
58{
59 pfn_t minconf = 2;
60 count_t i;
61 pfn_t start, conf;
62 size_t size;
63
64 for (i = 0; i < bootinfo.memmap.count; i++) {
65 start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE));
66 size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE));
67
68 if ((minconf < start) || (minconf >= start + size))
69 conf = start;
70 else
71 conf = minconf;
72
73 zone_create(start, size, conf, 0);
74 if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE))
75 last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE);
76 }
77
78 /* First is exception vector, second is 'implementation specific', third and fourth is reserved */
79 frame_mark_unavailable(0, 4);
80
81}
82
83/** @}
84 */
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