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2aa62f2b | 1 | /* $NetBSD: vmparam.h,v 1.2 2006/07/03 17:01:45 cherry Exp $ */\r |
2 | \r | |
3 | /*-\r | |
4 | * Copyright (c) 1990 The Regents of the University of California.\r | |
5 | * All rights reserved.\r | |
6 | *\r | |
7 | * This code is derived from software contributed to Berkeley by\r | |
8 | * William Jolitz.\r | |
9 | *\r | |
10 | * Redistribution and use in source and binary forms, with or without\r | |
11 | * modification, are permitted provided that the following conditions\r | |
12 | * are met:\r | |
13 | * 1. Redistributions of source code must retain the above copyright\r | |
14 | * notice, this list of conditions and the following disclaimer.\r | |
15 | * 2. Redistributions in binary form must reproduce the above copyright\r | |
16 | * notice, this list of conditions and the following disclaimer in the\r | |
17 | * documentation and/or other materials provided with the distribution.\r | |
18 | * 3. Neither the name of the University nor the names of its contributors\r | |
19 | * may be used to endorse or promote products derived from this software\r | |
20 | * without specific prior written permission.\r | |
21 | *\r | |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND\r | |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r | |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r | |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE\r | |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\r | |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS\r | |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r | |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r | |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r | |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r | |
32 | * SUCH DAMAGE.\r | |
33 | *\r | |
34 | * @(#)vmparam.h 5.9 (Berkeley) 5/12/91\r | |
35 | */\r | |
36 | \r | |
37 | #ifndef _VMPARAM_H_\r | |
38 | #define _VMPARAM_H_\r | |
39 | \r | |
40 | #include <sys/tree.h>\r | |
41 | \r | |
42 | #define USRSTACK VM_MAX_ADDRESS /* XXX: Revisit vm address space. */\r | |
43 | \r | |
44 | /*\r | |
45 | * Virtual memory related constants, all in bytes\r | |
46 | */\r | |
47 | #ifndef MAXTSIZ\r | |
48 | #define MAXTSIZ (1<<30) /* max text size (1G) */\r | |
49 | #endif\r | |
50 | #ifndef DFLDSIZ\r | |
51 | #define DFLDSIZ (1<<27) /* initial data size (128M) */\r | |
52 | #endif\r | |
53 | #ifndef MAXDSIZ\r | |
54 | #define MAXDSIZ (1<<30) /* max data size (1G) */\r | |
55 | #endif\r | |
56 | #ifndef DFLSSIZ\r | |
57 | #define DFLSSIZ (1<<21) /* initial stack size (2M) */\r | |
58 | #endif\r | |
59 | #ifndef MAXSSIZ\r | |
60 | #define MAXSSIZ (1<<28) /* max stack size (256M) */\r | |
61 | #endif\r | |
62 | #ifndef SGROWSIZ\r | |
63 | #define SGROWSIZ (128UL*1024) /* amount to grow stack */\r | |
64 | #endif\r | |
65 | \r | |
66 | \r | |
67 | \r | |
68 | /*\r | |
69 | * PTEs for mapping user space into the kernel for phyio operations.\r | |
70 | * 64 pte's are enough to cover 8 disks * MAXBSIZE.\r | |
71 | */\r | |
72 | #ifndef USRIOSIZE\r | |
73 | #define USRIOSIZE 64\r | |
74 | #endif\r | |
75 | \r | |
76 | /*\r | |
77 | * Manipulating region bits of an address.\r | |
78 | */\r | |
79 | #define IA64_RR_BASE(n) (((u_int64_t) (n)) << 61)\r | |
80 | #define IA64_RR_MASK(x) ((x) & ((1L << 61) - 1))\r | |
81 | \r | |
82 | #define IA64_PHYS_TO_RR6(x) ((x) | IA64_RR_BASE(6))\r | |
83 | #define IA64_PHYS_TO_RR7(x) ((x) | IA64_RR_BASE(7))\r | |
84 | \r | |
85 | #define IA64_ID_PAGE_SHIFT 28 /* 256M */\r | |
86 | #define IA64_ID_PAGE_SIZE (1 << IA64_ID_PAGE_SHIFT)\r | |
87 | #define IA64_ID_PAGE_MASK (IA64_ID_PAGE_SIZE-1)\r | |
88 | \r | |
89 | #define IA64_BACKINGSTORE IA64_RR_BASE(4)\r | |
90 | \r | |
91 | #define PAGE_SHIFT 14 /* 16K pages by default. */\r | |
92 | #define PAGE_SIZE (1 << PAGE_SHIFT)\r | |
93 | #define PAGE_MASK (PAGE_SIZE - 1)\r | |
94 | \r | |
95 | /* user/kernel map constants */\r | |
96 | #define VM_MIN_ADDRESS ((vaddr_t)0)\r | |
97 | #define VM_MAX_ADDRESS ((vaddr_t) IA64_RR_BASE(5))\r | |
98 | #define VM_GATEWAY_SIZE PAGE_SIZE\r | |
99 | #define VM_MAXUSER_ADDRESS (VM_MAX_ADDRESS + VM_GATEWAY_SIZE)\r | |
100 | #define VM_MIN_KERNEL_ADDRESS VM_MAXUSER_ADDRESS\r | |
101 | #define VM_MAX_KERNEL_ADDRESS ((vaddr_t) (IA64_RR_BASE(6) - 1))\r | |
102 | \r | |
103 | #define VM_PHYSSEG_MAX 16 /* XXX: */\r | |
104 | #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH\r | |
105 | #define VM_PHYSSEG_NOADD /* no more after vm_mem_init */\r | |
106 | \r | |
107 | #define VM_NFREELIST 1 /* XXX: */\r | |
108 | #define VM_FREELIST_DEFAULT 0 /* XXX: */\r | |
109 | \r | |
110 | /* virtual sizes (bytes) for various kernel submaps */\r | |
111 | #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE)\r | |
112 | \r | |
113 | #ifndef _LOCORE\r | |
114 | /*\r | |
115 | * pmap-specific data store in the vm_page structure.\r | |
116 | */\r | |
117 | #define __HAVE_VM_PAGE_MD\r | |
118 | struct vm_page_md {\r | |
119 | TAILQ_HEAD(,pv_entry) pv_list; /* pv_entry list */\r | |
120 | int pv_list_count;\r | |
121 | struct simplelock pv_slock; /* lock on this head */\r | |
122 | int pvh_attrs; /* page attributes */\r | |
123 | };\r | |
124 | \r | |
125 | #define VM_MDPAGE_INIT(pg) \\r | |
126 | do { \\r | |
127 | TAILQ_INIT(&(pg)->mdpage.pv_list); \\r | |
128 | simple_lock_init(&(pg)->mdpage.pv_slock); \\r | |
129 | } while (/*CONSTCOND*/0)\r | |
130 | #endif /*_LOCORE*/\r | |
131 | \r | |
132 | #endif /* _VMPARAM_H_ */\r |