1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*-
* Copyright (C) 2001-2003 by NBMK Encryption Technologies.
* All rights reserved.
*
* NBMK Encryption Technologies provides no support of any kind for
* this software. Questions or concerns about it may be addressed to
* the members of the relevant open-source community at
* <tech-crypto@netbsd.org>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*****************************************************************************
* @(#) n8_malloc_common.h 1.24@(#)
*****************************************************************************/
/*****************************************************************************/
/** @file n8_malloc_common.h
* @brief This file contains portability macros for user space and kernel
* space memory allocation.
*
* This file provides a portable set of macros for allocating and freeing
* memory blocks in both user and kernel space. The memory blocks are
* zero filled on allocation. The pointers to the memory blocks are set
* to NULL on free. A free of a NULL pointer generates a lowest priority
* message using the N8_Debug function. Platforms currently supported are
*
* Behavioral Model
* Linux
* Solaris
*
* To support a new platform, execute the following command in a directory
* where you have write permission:
*
* touch foo.h; cpp -dM foo.h
*
* This will show all of the preprocesser defined macros (such as __linux__).
* Pick one of these macros to use as the new platform ifdef.
*****************************************************************************/
/*****************************************************************************
* Revision history:
* 10/25/02 brr Clean up function prototypes & include files.
* 06/11/02 hml Added externs for the memroy bank control structs.
* 03/26/02 brr Added Buffer states, dropped unused parameters from N8_KMALLOC.
* 03/08/02 brr Added size to N8_UmallocHdr_t.
* 02/18/02 brr Removed all kernel specific references, reconciled function
* name discrepancies with n8_driver_api.c.
* 02/14/02 brr Reconcile 2.0 memory management changes.
* 01/30/02 brr Removed old definition of KMALLOC.
* 01/23/02 brr Modifed N8_UMALLOC/FREE macros to call QM_calloc/free.
* 01/21/02 bac Changes to support new kernel allocation scheme.
* 01/12/02 bac Changed the call to QM_AllocateBuffer to match new signature,
* which now includes the __FILE__ and __LINE__ values.
* 01/16/02 brr Changed N8_UMALLOC/FREE macros to call n8 functions.
* 01/14/02 brr Check size before performing vmalloc.
* 01/14/02 hml Added a memset to the N8_UMALLOC macro in kernel build.
* 01/10/01 hml Updated for kernel/user space environment.
* 01/08/01 brr Define N8_UMALLOC conditionally base on OS.
* 12/18/01 brr Removed obsolete bitflags from KMALLOC.
* 09/14/01 bac Added macro definition for N8_KMEM_DEFAULT_BITFIELDS which
* specifies the default flags for allocating unshared kernel
* memory. Changed the macro N8_KMALLOC to use these defaults
* when calling QM_AllocateBuffer.
* 07/30/01 bac Removed dead code for U/KMALLOC definitions.
* 06/22/01 bac Added include of QMMemory.h
* 06/15/01 bac Changed N8_KMALLOC/N8_KFREE
* 05/09/01 bac Fixed some compilation bugs.
* 05/03/01 HML Original version.
****************************************************************************/
#ifndef N8_MALLOC_COMMON_H
#define N8_MALLOC_COMMON_H
#include "n8_pub_common.h"
#include "n8_pub_errors.h"
#include "n8_OS_intf.h"
#include "n8_manage_memory.h"
typedef struct {
void *nextPtr;
int size;
} N8_UmallocHdr_t;
#if defined(__KERNEL__)
#include <asm/io.h>
#endif
extern void *n8_vmalloc(unsigned long size);
extern void n8_vfree(void *memPtr);
#define N8_BUFFER_HEADER_SIZE 32
/* The following defines are the possible states of a KMALLOC'ed buffer */
#define N8_BUFFER_NOT_QUEUED 0 /* Buffer is not on a command Queue */
#define N8_BUFFER_QUEUED 1 /* Buffer has been placed on a command Queue */
#define N8_BUFFER_SESS_DELETED 2 /* Buffer has been placed on a command Queue */
/* but the process has terminated. */
/* User space malloc and free macros. Note these are identical regardless
of platform. */
#define N8_UMALLOC(SIZE) n8_vmalloc((unsigned long)SIZE)
#define N8_UFREE(BUF) n8_vfree((void *)BUF)
#define N8_KMALLOC(SIZE) N8_AllocateBuffer(SIZE)
#define N8_KMALLOC_PK(SIZE) N8_AllocateBufferPK(SIZE)
#define N8_KFREE(MEM) N8_FreeBuffer(MEM)
#endif /* N8_MALLOC_COMMON_H */
|