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 USRTEXT NBPG 39 #define USRSTACK VM_MAXUSER_ADDRESS 40 41 #ifndef MAXTSIZ 42 #define MAXTSIZ (16*1024*1024) /* max text size */ 43 #endif 44 45 #ifndef DFLDSIZ 46 #define DFLDSIZ (32*1024*1024) /* default data size */ 47 #endif 48 49 #ifndef MAXDSIZ 50 #define MAXDSIZ (512*1024*1024) /* max data size */ 51 #endif 52 53 #ifndef DFLSSIZ 54 #define DFLSSIZ (1*1024*1024) /* default stack size */ 55 #endif 56 57 #ifndef MAXSSIZ 58 #define MAXSSIZ (32*1024*1024) /* max stack size */ 59 #endif 60 61 /* 62 * Size of shared memory map 63 */ 64 #ifndef SHMMAXPGS 65 #define SHMMAXPGS 1024 66 #endif 67 68 /* 69 * Size of User Raw I/O map 70 */ 71 #define USRIOSIZE 1024 72 73 /* 74 * The time for a process to be blocked before being very swappable. 75 * This is a number of seconds which the system takes as being a non-trivial 76 * amount of real time. You probably shouldn't change this; 77 * it is used in subtle ways (fractions and multiples of it are, that is, like 78 * half of a ``long time'', almost a long time, etc.) 79 * It is related to human patience and other factors which don't really 80 * change over time. 81 */ 82 #define MAXSLP 20 83 84 /* 85 * Use the direct-mapped BAT registers for UMA small allocs. This 86 * takes pressure off the small amount of available KVA. 87 */ 88 #define UMA_MD_SMALL_ALLOC 89 90 /* 91 * Would like to have MAX addresses = 0, but this doesn't (currently) work 92 */ 93 #define VM_MIN_ADDRESS ((vm_offset_t)0) 94 #define VM_MAXUSER_ADDRESS ((vm_offset_t)0x7ffff000) 95 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 96 #define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)(KERNEL_SR << ADDR_SR_SHFT)) 97 #define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH - 1) 98 99 #define KERNBASE 0x100000 /* start of kernel virtual */ 100 101 /* XXX max. amount of KVM to be used by buffers. */ 102 #ifndef VM_MAX_KERNEL_BUF 103 #define VM_MAX_KERNEL_BUF (SEGMENT_LENGTH * 7 / 10) 104 #endif 105 106 #define VM_PHYS_SIZE (USRIOSIZE * NBPG) 107 108 struct pmap_physseg { 109 struct pv_entry *pvent; 110 char *attrs; 111 }; 112 113 #define VM_PHYSSEG_MAX 16 /* 1? */ 114 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 115 #define VM_PHYSSEG_NOADD /* can't add RAM after vm_mem_init */ 116 117 #define VM_NFREELIST 1 118 #define VM_FREELIST_DEFAULT 0 119 120 #ifndef VM_INITIAL_PAGEIN 121 #define VM_INITIAL_PAGEIN 16 122 #endif 123 124 #ifndef SGROWSIZ 125 #define SGROWSIZ (128UL*1024) /* amount to grow stack */ 126 #endif 127 128 #ifndef VM_KMEM_SIZE 129 #define VM_KMEM_SIZE (12 * 1024 * 1024) 130 #endif 131 132 #endif /* _MACHINE_VMPARAM_H_ */ 133