vmparam.h revision 1.20 
1/*	$NetBSD: vmparam.h,v 1.20 2002/03/09 23:35:57 chs 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#ifndef OLDPMAP
35#include <powerpc/mpc6xx/vmparam.h>
36#define _MACHINE_VMPARAM_H_
37#endif
38
39#ifndef _MACHINE_VMPARAM_H_
40#define _MACHINE_VMPARAM_H_
41
42#define	USRTEXT		NBPG
43#define	USRSTACK	VM_MAXUSER_ADDRESS
44
45#ifndef	MAXTSIZ
46#define	MAXTSIZ		(64*1024*1024)		/* max text size */
47#endif
48
49#ifndef	DFLDSIZ
50#define	DFLDSIZ		(128*1024*1024)		/* default data size */
51#endif
52
53#ifndef	MAXDSIZ
54#define	MAXDSIZ		(1*1024*1024*1024)	/* max data size */
55#endif
56
57#ifndef	DFLSSIZ
58#define	DFLSSIZ		(2*1024*1024)		/* default stack size */
59#endif
60
61#ifndef	MAXSSIZ
62#define	MAXSSIZ		(32*1024*1024)		/* max stack size */
63#endif
64
65/*
66 * Size of shared memory map
67 */
68#ifndef	SHMMAXPGS
69#define	SHMMAXPGS	1024
70#endif
71
72/*
73 * Size of User Raw I/O map
74 */
75#define	USRIOSIZE	1024
76
77/*
78 * Would like to have MAX addresses = 0, but this doesn't (currently) work
79 */
80#define	VM_MIN_ADDRESS		((vaddr_t)0)
81#define	VM_MAXUSER_ADDRESS	((vaddr_t)0x7ffff000)
82#define	VM_MAX_ADDRESS		VM_MAXUSER_ADDRESS
83#define	VM_MIN_KERNEL_ADDRESS	((vaddr_t)(KERNEL_SR << ADDR_SR_SHFT))
84#define	VM_MAX_KERNEL_ADDRESS	(VM_MIN_KERNEL_ADDRESS + SEGMENT_LENGTH - 1)
85
86/* XXX max. amount of KVM to be used by buffers. */
87#ifndef VM_MAX_KERNEL_BUF
88#define VM_MAX_KERNEL_BUF	(SEGMENT_LENGTH / 2)
89#endif
90
91#define	VM_PHYS_SIZE		(USRIOSIZE * NBPG)
92
93#define	__HAVE_PMAP_PHYSSEG
94
95struct pmap_physseg {
96	struct pv_entry *pvent;
97	char *attrs;
98};
99
100#define VM_PHYSSEG_MAX		16	/* 1? */
101#define VM_PHYSSEG_STRAT	VM_PSTRAT_BSEARCH
102#define VM_PHYSSEG_NOADD		/* can't add RAM after vm_mem_init */
103
104#define	VM_NFREELIST		1
105#define	VM_FREELIST_DEFAULT	0
106
107#endif /* _MACHINE_VMPARAM_H_ */
108