1 /* $NetBSD: vmparam.h,v 1.3 2001/05/01 02:19:15 thorpej 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 _MACHINE_VMPARAM_H_ 35 #define _MACHINE_VMPARAM_H_ 36 37 #define USRTEXT NBPG 38 #define USRSTACK VM_MAXUSER_ADDRESS 39 40 #ifndef MAXTSIZ 41 #define MAXTSIZ (16*1024*1024) /* max text size */ 42 #endif 43 44 #ifndef DFLDSIZ 45 #define DFLDSIZ (32*1024*1024) /* default data size */ 46 #endif 47 48 #ifndef MAXDSIZ 49 #define MAXDSIZ (512*1024*1024) /* max data size */ 50 #endif 51 52 #ifndef DFLSSIZ 53 #define DFLSSIZ (1*1024*1024) /* default stack size */ 54 #endif 55 56 #ifndef MAXSSIZ 57 #define MAXSSIZ (32*1024*1024) /* max stack size */ 58 #endif 59 60 /* 61 * Size of shared memory map 62 */ 63 #ifndef SHMMAXPGS 64 #define SHMMAXPGS 1024 65 #endif 66 67 /* 68 * Size of User Raw I/O map 69 */ 70 #define USRIOSIZE 1024 71 72 /* 73 * The time for a process to be blocked before being very swappable. 74 * This is a number of seconds which the system takes as being a non-trivial 75 * amount of real time. You probably shouldn't change this; 76 * it is used in subtle ways (fractions and multiples of it are, that is, like 77 * half of a ``long time'', almost a long time, etc.) 78 * It is related to human patience and other factors which don't really 79 * change over time. 80 */ 81 #define MAXSLP 20 82 83 /* 84 * Would like to have MAX addresses = 0, but this doesn't (currently) work 85 */ 86 #define VM_MIN_ADDRESS ((vaddr_t)0) 87 #define VM_MAXUSER_ADDRESS ((vaddr_t)0x7ffff000) 88 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 89 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t)(KERNEL_SR << ADDR_SR_SHFT)) 90 #define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + SEGMENT_LENGTH - 1) 91 92 /* XXX max. amount of KVM to be used by buffers. */ 93 #ifndef VM_MAX_KERNEL_BUF 94 #define VM_MAX_KERNEL_BUF (SEGMENT_LENGTH * 7 / 10) 95 #endif 96 97 #define VM_KMEM_SIZE (NKMEMCLUSTERS * NBPG) 98 #define VM_PHYS_SIZE (USRIOSIZE * NBPG) 99 100 #define __HAVE_PMAP_PHYSSEG 101 102 struct pmap_physseg { 103 struct pv_entry *pvent; 104 char *attrs; 105 }; 106 107 #define VM_PHYSSEG_MAX 16 /* 1? */ 108 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 109 #define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */ 110 111 #define VM_NFREELIST 1 112 #define VM_FREELIST_DEFAULT 0 113 114 #endif /* _MACHINE_VMPARAM_H_ */ 115