1/*-
2 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
3 * Copyright (C) 1995, 1996 TooLs GmbH.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 *    must display the following acknowledgement:
16 *	This product includes software developed by TooLs GmbH.
17 * 4. The name of TooLs GmbH may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 *	$NetBSD: vmparam.h,v 1.11 2000/02/11 19:25:16 thorpej Exp $
32 * $FreeBSD$
33 */
34
35#ifndef _MACHINE_VMPARAM_H_
36#define	_MACHINE_VMPARAM_H_
37
38#define	USRSTACK	SHAREDPAGE
39
40#ifndef	MAXTSIZ
41#define	MAXTSIZ		(64*1024*1024)		/* max text size */
42#endif
43
44#ifndef	DFLDSIZ
45#define	DFLDSIZ		(128*1024*1024)		/* default data size */
46#endif
47
48#ifndef	MAXDSIZ
49#define	MAXDSIZ		(1*1024*1024*1024)	/* max data size */
50#endif
51
52#ifndef	DFLSSIZ
53#define	DFLSSIZ		(8*1024*1024)		/* default stack size */
54#endif
55
56#ifndef	MAXSSIZ
57#define	MAXSSIZ		(64*1024*1024)		/* max stack size */
58#endif
59
60#ifdef AIM
61#define	VM_MAXUSER_ADDRESS32	((vm_offset_t)0xfffff000)
62#else
63#define	VM_MAXUSER_ADDRESS32	((vm_offset_t)0x7ffff000)
64#endif
65
66/*
67 * Would like to have MAX addresses = 0, but this doesn't (currently) work
68 */
69#if !defined(LOCORE)
70#ifdef __powerpc64__
71#define	VM_MIN_ADDRESS		(0x0000000000000000UL)
72#define	VM_MAXUSER_ADDRESS	(0xfffffffffffff000UL)
73#define	VM_MAX_ADDRESS		(0xffffffffffffffffUL)
74#else
75#define	VM_MIN_ADDRESS		((vm_offset_t)0)
76#define	VM_MAXUSER_ADDRESS	VM_MAXUSER_ADDRESS32
77#define	VM_MAX_ADDRESS		((vm_offset_t)0xffffffff)
78#endif
79#define	SHAREDPAGE		(VM_MAXUSER_ADDRESS - PAGE_SIZE)
80#else /* LOCORE */
81#if !defined(__powerpc64__) && defined(E500)
82#define	VM_MIN_ADDRESS		0
83#define	VM_MAXUSER_ADDRESS	0x7ffff000
84#endif
85#endif /* LOCORE */
86
87#define	FREEBSD32_SHAREDPAGE	(VM_MAXUSER_ADDRESS32 - PAGE_SIZE)
88#define	FREEBSD32_USRSTACK	FREEBSD32_SHAREDPAGE
89
90#ifdef AIM
91#define	KERNBASE		0x00100000UL	/* start of kernel virtual */
92
93#ifdef __powerpc64__
94#define	VM_MIN_KERNEL_ADDRESS		0xc000000000000000UL
95#define	VM_MAX_KERNEL_ADDRESS		0xc0000001c7ffffffUL
96#define	VM_MAX_SAFE_KERNEL_ADDRESS	VM_MAX_KERNEL_ADDRESS
97#else
98#define	VM_MIN_KERNEL_ADDRESS	((vm_offset_t)KERNEL_SR << ADDR_SR_SHFT)
99#define	VM_MAX_SAFE_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH -1)
100#define	VM_MAX_KERNEL_ADDRESS	(VM_MIN_KERNEL_ADDRESS + 3*SEGMENT_LENGTH - 1)
101#endif
102
103/*
104 * Use the direct-mapped BAT registers for UMA small allocs. This
105 * takes pressure off the small amount of available KVA.
106 */
107#define UMA_MD_SMALL_ALLOC
108
109#else /* Book-E */
110
111/*
112 * Kernel CCSRBAR location. We make this the reset location.
113 */
114#define	CCSRBAR_VA		0xfef00000
115#define	CCSRBAR_SIZE		0x00100000
116
117#define	KERNBASE		0xc0000000	/* start of kernel virtual */
118
119#define	VM_MIN_KERNEL_ADDRESS	KERNBASE
120#define	VM_MAX_KERNEL_ADDRESS	0xf8000000
121
122#endif /* AIM/E500 */
123
124/* XXX max. amount of KVM to be used by buffers. */
125#ifndef VM_MAX_KERNEL_BUF
126#define	VM_MAX_KERNEL_BUF	(SEGMENT_LENGTH * 7 / 10)
127#endif
128
129#if !defined(LOCORE)
130struct pmap_physseg {
131	struct pv_entry *pvent;
132	char *attrs;
133};
134#endif
135
136#define	VM_PHYSSEG_MAX		16	/* 1? */
137
138/*
139 * The physical address space is densely populated on 32-bit systems,
140 * but may not be on 64-bit ones.
141 */
142#ifdef __powerpc64__
143#define	VM_PHYSSEG_SPARSE
144#else
145#define	VM_PHYSSEG_DENSE
146#endif
147
148/*
149 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool
150 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is
151 * the pool from which physical pages for small UMA objects are
152 * allocated.
153 */
154#define	VM_NFREEPOOL		3
155#define	VM_FREEPOOL_CACHE	2
156#define	VM_FREEPOOL_DEFAULT	0
157#define	VM_FREEPOOL_DIRECT	1
158
159/*
160 * Create one free page list.
161 */
162#define	VM_NFREELIST		1
163#define	VM_FREELIST_DEFAULT	0
164
165/*
166 * The largest allocation size is 4MB.
167 */
168#define	VM_NFREEORDER		11
169
170/*
171 * Only one memory domain.
172 */
173#ifndef VM_NDOMAIN
174#define	VM_NDOMAIN		1
175#endif
176
177/*
178 * Disable superpage reservations.
179 */
180#ifndef	VM_NRESERVLEVEL
181#define	VM_NRESERVLEVEL		0
182#endif
183
184#ifndef VM_INITIAL_PAGEIN
185#define	VM_INITIAL_PAGEIN	16
186#endif
187
188#ifndef SGROWSIZ
189#define	SGROWSIZ	(128UL*1024)		/* amount to grow stack */
190#endif
191
192#ifndef VM_KMEM_SIZE
193#define	VM_KMEM_SIZE		(12 * 1024 * 1024)
194#endif
195
196#ifdef __powerpc64__
197#ifndef VM_KMEM_SIZE_SCALE
198#define VM_KMEM_SIZE_SCALE      (3)
199#endif
200
201#ifndef VM_KMEM_SIZE_MAX
202#define VM_KMEM_SIZE_MAX        0x1c0000000  /* 7 GB */
203#endif
204#endif
205
206#define	ZERO_REGION_SIZE	(64 * 1024)	/* 64KB */
207
208#endif /* _MACHINE_VMPARAM_H_ */
209