xref: /netbsd-src/sys/arch/ofppc/include/vmparam.h (revision fdecd6a253f999ae92b139670d9e15cc9df4497c)
1 /*	$NetBSD: vmparam.h,v 1.3 1997/06/12 15:09:36 mrg Exp $	*/
2 
3 /*-
4  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
5  * Copyright (C) 1995, 1996 TooLs GmbH.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *	This product includes software developed by TooLs GmbH.
19  * 4. The name of TooLs GmbH may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
25  * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
28  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #define	USRTEXT		CLBYTES
35 #define	USRSTACK	VM_MAXUSER_ADDRESS
36 
37 #ifndef	MAXTSIZ
38 #define	MAXTSIZ		(16*1024*1024)		/* max text size */
39 #endif
40 
41 #ifndef	DFLDSIZ
42 #define	DFLDSIZ		(16*1024*1024)		/* default data size */
43 #endif
44 
45 #ifndef	MAXDSIZ
46 #define	MAXDSIZ		(512*1024*1024)		/* max data size */
47 #endif
48 
49 #ifndef	DFLSSIZ
50 #define	DFLSSIZ		(1*1024*1024)		/* default stack size */
51 #endif
52 
53 #ifndef	MAXSSIZ
54 #define	MAXSSIZ		(32*1024*1024)		/* max stack size */
55 #endif
56 
57 /*
58  * Size of shared memory map
59  */
60 #ifndef	SHMMAXPGS
61 #define	SHMMAXPGS	1024
62 #endif
63 
64 /*
65  * Size of User Raw I/O map
66  */
67 #define	USRIOSIZE	1024
68 
69 /*
70  * The time for a process to be blocked before being very swappable.
71  * This is a number of seconds which the system takes as being a non-trivial
72  * amount of real time.  You probably shouldn't change this;
73  * it is used in subtle ways (fractions and multiples of it are, that is, like
74  * half of a ``long time'', almost a long time, etc.)
75  * It is related to human patience and other factors which don't really
76  * change over time.
77  */
78 #define	MAXSLP 		20
79 
80 /*
81  * Would like to have MAX addresses = 0, but this doesn't (currently) work
82  */
83 #define	VM_MIN_ADDRESS		((vm_offset_t)0)
84 #define	VM_MAXUSER_ADDRESS	((vm_offset_t)0xfffff000)
85 #define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
86 #define	VM_MIN_KERNEL_ADDRESS	((vm_offset_t)(KERNEL_SR << ADDR_SR_SHFT))
87 
88 #define	VM_KMEM_SIZE		(NKMEMCLUSTERS * CLBYTES)
89 #define	VM_MBUF_SIZE		(NMBCLUSTERS * CLBYTES)
90 #define	VM_PHYS_SIZE		(USRIOSIZE * CLBYTES)
91 
92 /*
93  * MACHINE_NONCONTIG is necessart for NetBSD/powerpc.
94  */
95 #define	MACHINE_NONCONTIG
96