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
131
132
|
/* $OpenBSD: vmparam.h,v 1.11 2009/06/01 17:42:33 ariane Exp $ */
/* $NetBSD: vmparam.h,v 1.1 2003/04/26 18:39:49 fvdl Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)vmparam.h 5.9 (Berkeley) 5/12/91
*/
#ifndef _VMPARAM_H_
#define _VMPARAM_H_
/*
* Machine dependent constants for amd64.
*/
/*
* USRSTACK is the top (end) of the user stack. Immediately above the
* user stack resides the user structure, which is UPAGES long and contains
* the kernel stack.
*
* Immediately after the user structure is the page table map, and then
* kernel address space.
*/
#define USRSTACK VM_MAXUSER_ADDRESS
/*
* Virtual memory related constants, all in bytes
*/
#define MAXTSIZ ((paddr_t)64*1024*1024) /* max text size */
#ifndef DFLDSIZ
#define DFLDSIZ ((paddr_t)128*1024*1024) /* initial data size limit */
#endif
#ifndef MAXDSIZ
#define MAXDSIZ ((paddr_t)8*1024*1024*1024) /* max data size */
#endif
#ifndef DFLSSIZ
#define DFLSSIZ ((paddr_t)2*1024*1024) /* initial stack size limit */
#endif
#ifndef MAXSSIZ
#define MAXSSIZ ((paddr_t)32*1024*1024) /* max stack size */
#endif
#define STACKGAP_RANDOM 256*1024
/*
* Size of shared memory map
*/
#ifndef SHMMAXPGS
#define SHMMAXPGS 8192
#endif
/*
* Size of User Raw I/O map
*/
#define USRIOSIZE 300
/*
* Mach derived constants
*/
/* user/kernel map constants */
#define VM_MIN_ADDRESS PAGE_SIZE
#define VM_MAXUSER_ADDRESS 0x00007f7fffffc000
#define VM_MAX_ADDRESS 0x00007fbfdfeff000
#define VM_MIN_KERNEL_ADDRESS 0xffff800000000000
#define VM_MAX_KERNEL_ADDRESS 0xffff800100000000
#define VM_MAXUSER_ADDRESS32 0xffffc000
/* map PIE into approximately the first quarter of user va space */
#define VM_PIE_MIN_ADDR VM_MIN_ADDRESS
#define VM_PIE_MAX_ADDR 0x200000000000
/* virtual sizes (bytes) for various kernel submaps */
#define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)
#define VM_PHYSSEG_MAX 16 /* actually we could have this many segments */
#define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST
#define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */
#define VM_NFREELIST 3
#define VM_FREELIST_DEFAULT 0
#define VM_FREELIST_LOW 1
#define VM_FREELIST_HIGH 2
/* reserve ISA-DMA and 32-bit DMA memory */
#define UVM_IO_RANGES \
{ \
{ 0, 0x00ffffffUL }, \
{ 0, 0xffffffffUL }, \
}
#define __HAVE_VM_PAGE_MD
struct pv_entry;
struct vm_page_md {
struct pv_entry *pv_list;
};
#define VM_MDPAGE_INIT(pg) do { \
(pg)->mdpage.pv_list = NULL; \
} while (0)
#endif /* _VMPARAM_H_ */
|
