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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
30static long gImageLastKernelAddr;
31
32#define kPageSize 4096
33#define RoundPage(x) ((((unsigned)(x)) + kPageSize - 1) & ~(kPageSize - 1))
34
35#if UNUSED
36long
37AllocateMemoryRange(char * rangeName, long start, long length, long type)
38#else
39long
40AllocateMemoryRange(char * rangeName, long start, long length)
41#endif
42{
43 char *nameBuf;
44 uint32_t *buffer;
45
46 nameBuf = malloc(strlen(rangeName) + 1);
47 if (nameBuf == 0) return -1;
48 strcpy(nameBuf, rangeName);
49
50 buffer = malloc(2 * sizeof(uint32_t));
51 if (buffer == 0) return -1;
52
53 buffer[0] = start;
54 buffer[1] = length;
55
56 DT__AddProperty(gMemoryMapNode, nameBuf, 2 * sizeof(uint32_t), (char *)buffer);
57
58 return 0;
59}
60
61long
62AllocateKernelMemory( long inSize )
63{
64 long addr;
65
66 if (gImageLastKernelAddr == 0)
67{
68 gImageLastKernelAddr = RoundPage( bootArgs->kaddr +
69 bootArgs->ksize );
70 }
71 addr = gImageLastKernelAddr;
72 gImageLastKernelAddr += RoundPage(inSize);
73
74 if ( gImageLastKernelAddr >= (KERNEL_ADDR + KERNEL_LEN) )
75{
76 stop ("AllocateKernelMemory error");
77 }
78
79 bootArgs->ksize = gImageLastKernelAddr - bootArgs->kaddr;
80
81 return addr;
82}
83

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