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1/*
2 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Portions Copyright (c) 2003 Apple Computer, Inc. All Rights
7 * Reserved. This file contains Original Code and/or Modifications of
8 * Original Code as defined in and that are subject to the Apple Public
9 * Source License Version 2.0 (the "License"). You may not use this file
10 * except in compliance with the License. Please obtain a copy of the
11 * License at http://www.apple.com/publicsource and read it before using
12 * this file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
19 * License for the specific language governing rights and limitations
20 * under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24
25#include "sl.h"
26#include "saio_internal.h"
27#include "bootstruct.h"
28#include "device_tree.h"
29#include "platform.h"
30
31static long gImageLastKernelAddr;
32
33#define kPageSize 4096
34#define RoundPage(x) ((((unsigned)(x)) + kPageSize - 1) & ~(kPageSize - 1))
35
36long
37AllocateMemoryRange(char * rangeName, long start, long length)
38{
39 char *nameBuf;
40 uint32_t *buffer;
41
42 nameBuf = malloc(strlen(rangeName) + 1);
43 if (nameBuf == 0) return -1;
44 strcpy(nameBuf, rangeName);
45
46 buffer = malloc(2 * sizeof(uint32_t));
47 if (buffer == 0) {free(nameBuf);return -1;}
48
49 buffer[0] = start;
50 buffer[1] = length;
51
52 DT__AddProperty((Node*)(uint32_t)get_env(envMemoryMapNode), nameBuf, 2 * sizeof(uint32_t), (char *)buffer);
53
54 return 0;
55}
56
57long
58AllocateKernelMemory( long inSize )
59{
60 long addr;
61
62 if (gImageLastKernelAddr == 0)
63{
64 gImageLastKernelAddr = RoundPage( bootArgs->kaddr +
65 bootArgs->ksize );
66 }
67 addr = gImageLastKernelAddr;
68 gImageLastKernelAddr += RoundPage(inSize);
69
70 if ( gImageLastKernelAddr >= (KERNEL_ADDR + KERNEL_LEN) )
71{
72 stop ("AllocateKernelMemory error");
73 }
74
75 bootArgs->ksize = gImageLastKernelAddr - bootArgs->kaddr;
76
77 return addr;
78}
79

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Revision: 1972