1/* $OpenBSD: vmparam.h,v 1.2 1998/09/15 10:50:12 pefo Exp $ */
2/* $NetBSD: vmparam.h,v 1.5 1994/10/26 21:10:10 cgd Exp $ */
3
4/*
5 * Copyright (c) 1988 University of Utah.
6 * Copyright (c) 1992, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * the Systems Programming Group of the University of Utah Computer
11 * Science Department and Ralph Campbell.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * from: Utah Hdr: vmparam.h 1.16 91/01/18
38 * @(#)vmparam.h 8.2 (Berkeley) 4/22/94
39 * JNPR: vmparam.h,v 1.3.2.1 2007/09/10 06:01:28 girish
40 * $FreeBSD: head/sys/mips/include/vmparam.h 217192 2011-01-09 12:50:44Z kib $
41 */
42
43#ifndef _MACHINE_VMPARAM_H_
44#define _MACHINE_VMPARAM_H_
45
46/*
47 * Machine dependent constants mips processors.
48 */
49
50/*
51 * Virtual memory related constants, all in bytes
52 */
53#ifndef MAXTSIZ
54#define MAXTSIZ (128UL*1024*1024) /* max text size */
55#endif
56#ifndef DFLDSIZ
57#define DFLDSIZ (128UL*1024*1024) /* initial data size limit */
58#endif
59#ifndef MAXDSIZ
60#define MAXDSIZ (1*1024UL*1024*1024) /* max data size */
61#endif
62#ifndef DFLSSIZ
63#define DFLSSIZ (8UL*1024*1024) /* initial stack size limit */
64#endif
65#ifndef MAXSSIZ
66#define MAXSSIZ (64UL*1024*1024) /* max stack size */
67#endif
68#ifndef SGROWSIZ
69#define SGROWSIZ (128UL*1024) /* amount to grow stack */
70#endif
71
72/*
73 * Mach derived constants
74 */
75
76/* user/kernel map constants */
77#define VM_MIN_ADDRESS ((vm_offset_t)0x00000000)
78#define VM_MAX_ADDRESS ((vm_offset_t)(intptr_t)(int32_t)0xffffffff)
79
80#define VM_MINUSER_ADDRESS ((vm_offset_t)0x00000000)
81
82#ifdef __mips_n64
83#define VM_MAXUSER_ADDRESS (VM_MINUSER_ADDRESS + (NPDEPG * NBSEG))
84#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)0xc000000000000000)
85#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + (NPDEPG * NBSEG))
86#else
87#define VM_MAXUSER_ADDRESS ((vm_offset_t)0x80000000)
88#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)0xC0000000)
89#define VM_MAX_KERNEL_ADDRESS ((vm_offset_t)0xFFFFC000)
90#endif
91
92#define KERNBASE ((vm_offset_t)(intptr_t)(int32_t)0x80000000)
93/*
94 * USRSTACK needs to start a little below 0x8000000 because the R8000
95 * and some QED CPUs perform some virtual address checks before the
96 * offset is calculated.
97 */
98#define USRSTACK (VM_MAXUSER_ADDRESS - PAGE_SIZE)
99
100/*
101 * Only one memory domain.
102 */
103#ifndef VM_NDOMAIN
104#define VM_NDOMAIN 1
105#endif
106
107/*
108 * Disable superpage reservations. (not sure if this is right
109 * I copied it from ARM)
110 */
111#ifndef VM_NRESERVLEVEL
112#define VM_NRESERVLEVEL 0
113#endif
114
115/* virtual sizes (bytes) for various kernel submaps */
116#ifndef VM_KMEM_SIZE
117#define VM_KMEM_SIZE (12 * 1024 * 1024)
118#endif
119
120/*
121 * How many physical pages per KVA page allocated.
122 * min(max(VM_KMEM_SIZE, Physical memory/VM_KMEM_SIZE_SCALE), VM_KMEM_SIZE_MAX)
123 * is the total KVA space allocated for kmem_map.
124 */
125#ifndef VM_KMEM_SIZE_SCALE
126#define VM_KMEM_SIZE_SCALE (3)
127#endif
128
129/*
130 * Ceiling on amount of kmem_map kva space.
131 */
132#ifndef VM_KMEM_SIZE_MAX
133#define VM_KMEM_SIZE_MAX (200 * 1024 * 1024)
134#endif
135
136/* initial pagein size of beginning of executable file */
137#ifndef VM_INITIAL_PAGEIN
138#define VM_INITIAL_PAGEIN 16
139#endif
140
141#define UMA_MD_SMALL_ALLOC
142
143/*
144 * max number of non-contig chunks of physical RAM you can have
145 */
146#define VM_PHYSSEG_MAX 32
147
148/*
149 * The physical address space is sparsely populated.
150 */
151#define VM_PHYSSEG_SPARSE
152
153/*
154 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool
155 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is
156 * the pool from which physical pages for small UMA objects are
157 * allocated.
158 */
159#define VM_NFREEPOOL 3
160#define VM_FREEPOOL_CACHE 2
161#define VM_FREEPOOL_DEFAULT 0
162#define VM_FREEPOOL_DIRECT 1
163
164/*
165 * we support 2 free lists:
166 *
167 * - DEFAULT for direct mapped (KSEG0) pages.
168 * Note: This usage of DEFAULT may be misleading because we use
169 * DEFAULT for allocating direct mapped pages. The normal page
170 * allocations use HIGHMEM if available, and then DEFAULT.
171 * - HIGHMEM for other pages
172 */
173#ifdef __mips_n64
174#define VM_NFREELIST 1
175#define VM_FREELIST_DEFAULT 0
176#define VM_FREELIST_DIRECT VM_FREELIST_DEFAULT
177#else
178#define VM_NFREELIST 2
179#define VM_FREELIST_DEFAULT 1
180#define VM_FREELIST_HIGHMEM 0
181#define VM_FREELIST_DIRECT VM_FREELIST_DEFAULT
182#define VM_HIGHMEM_ADDRESS ((vm_paddr_t)0x20000000)
183#endif
184
185/*
186 * The largest allocation size is 1MB.
187 */
188#define VM_NFREEORDER 9
189
190#endif /* !_MACHINE_VMPARAM_H_ */
2/* $NetBSD: vmparam.h,v 1.5 1994/10/26 21:10:10 cgd Exp $ */
3
4/*
5 * Copyright (c) 1988 University of Utah.
6 * Copyright (c) 1992, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * the Systems Programming Group of the University of Utah Computer
11 * Science Department and Ralph Campbell.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 *
37 * from: Utah Hdr: vmparam.h 1.16 91/01/18
38 * @(#)vmparam.h 8.2 (Berkeley) 4/22/94
39 * JNPR: vmparam.h,v 1.3.2.1 2007/09/10 06:01:28 girish
40 * $FreeBSD: head/sys/mips/include/vmparam.h 217192 2011-01-09 12:50:44Z kib $
41 */
42
43#ifndef _MACHINE_VMPARAM_H_
44#define _MACHINE_VMPARAM_H_
45
46/*
47 * Machine dependent constants mips processors.
48 */
49
50/*
51 * Virtual memory related constants, all in bytes
52 */
53#ifndef MAXTSIZ
54#define MAXTSIZ (128UL*1024*1024) /* max text size */
55#endif
56#ifndef DFLDSIZ
57#define DFLDSIZ (128UL*1024*1024) /* initial data size limit */
58#endif
59#ifndef MAXDSIZ
60#define MAXDSIZ (1*1024UL*1024*1024) /* max data size */
61#endif
62#ifndef DFLSSIZ
63#define DFLSSIZ (8UL*1024*1024) /* initial stack size limit */
64#endif
65#ifndef MAXSSIZ
66#define MAXSSIZ (64UL*1024*1024) /* max stack size */
67#endif
68#ifndef SGROWSIZ
69#define SGROWSIZ (128UL*1024) /* amount to grow stack */
70#endif
71
72/*
73 * Mach derived constants
74 */
75
76/* user/kernel map constants */
77#define VM_MIN_ADDRESS ((vm_offset_t)0x00000000)
78#define VM_MAX_ADDRESS ((vm_offset_t)(intptr_t)(int32_t)0xffffffff)
79
80#define VM_MINUSER_ADDRESS ((vm_offset_t)0x00000000)
81
82#ifdef __mips_n64
83#define VM_MAXUSER_ADDRESS (VM_MINUSER_ADDRESS + (NPDEPG * NBSEG))
84#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)0xc000000000000000)
85#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + (NPDEPG * NBSEG))
86#else
87#define VM_MAXUSER_ADDRESS ((vm_offset_t)0x80000000)
88#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)0xC0000000)
89#define VM_MAX_KERNEL_ADDRESS ((vm_offset_t)0xFFFFC000)
90#endif
91
92#define KERNBASE ((vm_offset_t)(intptr_t)(int32_t)0x80000000)
93/*
94 * USRSTACK needs to start a little below 0x8000000 because the R8000
95 * and some QED CPUs perform some virtual address checks before the
96 * offset is calculated.
97 */
98#define USRSTACK (VM_MAXUSER_ADDRESS - PAGE_SIZE)
99
100/*
101 * Only one memory domain.
102 */
103#ifndef VM_NDOMAIN
104#define VM_NDOMAIN 1
105#endif
106
107/*
108 * Disable superpage reservations. (not sure if this is right
109 * I copied it from ARM)
110 */
111#ifndef VM_NRESERVLEVEL
112#define VM_NRESERVLEVEL 0
113#endif
114
115/* virtual sizes (bytes) for various kernel submaps */
116#ifndef VM_KMEM_SIZE
117#define VM_KMEM_SIZE (12 * 1024 * 1024)
118#endif
119
120/*
121 * How many physical pages per KVA page allocated.
122 * min(max(VM_KMEM_SIZE, Physical memory/VM_KMEM_SIZE_SCALE), VM_KMEM_SIZE_MAX)
123 * is the total KVA space allocated for kmem_map.
124 */
125#ifndef VM_KMEM_SIZE_SCALE
126#define VM_KMEM_SIZE_SCALE (3)
127#endif
128
129/*
130 * Ceiling on amount of kmem_map kva space.
131 */
132#ifndef VM_KMEM_SIZE_MAX
133#define VM_KMEM_SIZE_MAX (200 * 1024 * 1024)
134#endif
135
136/* initial pagein size of beginning of executable file */
137#ifndef VM_INITIAL_PAGEIN
138#define VM_INITIAL_PAGEIN 16
139#endif
140
141#define UMA_MD_SMALL_ALLOC
142
143/*
144 * max number of non-contig chunks of physical RAM you can have
145 */
146#define VM_PHYSSEG_MAX 32
147
148/*
149 * The physical address space is sparsely populated.
150 */
151#define VM_PHYSSEG_SPARSE
152
153/*
154 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool
155 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is
156 * the pool from which physical pages for small UMA objects are
157 * allocated.
158 */
159#define VM_NFREEPOOL 3
160#define VM_FREEPOOL_CACHE 2
161#define VM_FREEPOOL_DEFAULT 0
162#define VM_FREEPOOL_DIRECT 1
163
164/*
165 * we support 2 free lists:
166 *
167 * - DEFAULT for direct mapped (KSEG0) pages.
168 * Note: This usage of DEFAULT may be misleading because we use
169 * DEFAULT for allocating direct mapped pages. The normal page
170 * allocations use HIGHMEM if available, and then DEFAULT.
171 * - HIGHMEM for other pages
172 */
173#ifdef __mips_n64
174#define VM_NFREELIST 1
175#define VM_FREELIST_DEFAULT 0
176#define VM_FREELIST_DIRECT VM_FREELIST_DEFAULT
177#else
178#define VM_NFREELIST 2
179#define VM_FREELIST_DEFAULT 1
180#define VM_FREELIST_HIGHMEM 0
181#define VM_FREELIST_DIRECT VM_FREELIST_DEFAULT
182#define VM_HIGHMEM_ADDRESS ((vm_paddr_t)0x20000000)
183#endif
184
185/*
186 * The largest allocation size is 1MB.
187 */
188#define VM_NFREEORDER 9
189
190#endif /* !_MACHINE_VMPARAM_H_ */