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 /* 61 * Would like to have MAX addresses = 0, but this doesn't (currently) work 62 */ 63 #if !defined(LOCORE) 64 #ifdef __powerpc64__ 65 #define VM_MIN_ADDRESS (0x0000000000000000UL) 66 #define VM_MAXUSER_ADDRESS (0x7ffffffffffff000UL) 67 #define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) 68 #define VM_MAX_ADDRESS (0xffffffffffffffffUL) 69 #else 70 #define VM_MIN_ADDRESS ((vm_offset_t)0) 71 #define VM_MAXUSER_ADDRESS ((vm_offset_t)0x7ffff000) 72 #define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) 73 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 74 #endif 75 #else /* LOCORE */ 76 #ifndef __powerpc64__ 77 #define VM_MIN_ADDRESS 0 78 #define VM_MAXUSER_ADDRESS 0x7ffff000 79 #endif 80 #endif /* LOCORE */ 81 82 #define FREEBSD32_SHAREDPAGE (0x7ffff000 - PAGE_SIZE) 83 #define FREEBSD32_USRSTACK FREEBSD32_SHAREDPAGE 84 85 #ifdef AIM 86 #define KERNBASE 0x00100000UL /* start of kernel virtual */ 87 88 #ifdef __powerpc64__ 89 #define VM_MIN_KERNEL_ADDRESS 0xc000000000000000UL 90 #define VM_MAX_KERNEL_ADDRESS 0xc0000001c7ffffffUL 91 #define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS 92 #else 93 #define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)KERNEL_SR << ADDR_SR_SHFT) 94 #define VM_MAX_SAFE_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH -1) 95 #define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 3*SEGMENT_LENGTH - 1) 96 #endif 97 98 /* 99 * Use the direct-mapped BAT registers for UMA small allocs. This 100 * takes pressure off the small amount of available KVA. 101 */ 102 #define UMA_MD_SMALL_ALLOC 103 104 #else /* Book-E */ 105 106 /* 107 * Kernel CCSRBAR location. We make this the reset location. 108 */ 109 #define CCSRBAR_VA 0xfef00000 110 #define CCSRBAR_SIZE 0x00100000 111 112 #define KERNBASE 0xc0000000 /* start of kernel virtual */ 113 114 #define VM_MIN_KERNEL_ADDRESS KERNBASE 115 #define VM_MAX_KERNEL_ADDRESS 0xf8000000 116 117 #endif /* AIM/E500 */ 118 119 /* XXX max. amount of KVM to be used by buffers. */ 120 #ifndef VM_MAX_KERNEL_BUF 121 #define VM_MAX_KERNEL_BUF (SEGMENT_LENGTH * 7 / 10) 122 #endif 123 124 #if !defined(LOCORE) 125 struct pmap_physseg { 126 struct pv_entry *pvent; 127 char *attrs; 128 }; 129 #endif 130 131 #define VM_PHYSSEG_MAX 16 /* 1? */ 132 133 /* 134 * The physical address space is densely populated on 32-bit systems, 135 * but may not be on 64-bit ones. 136 */ 137 #ifdef __powerpc64__ 138 #define VM_PHYSSEG_SPARSE 139 #else 140 #define VM_PHYSSEG_DENSE 141 #endif 142 143 /* 144 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool 145 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is 146 * the pool from which physical pages for small UMA objects are 147 * allocated. 148 */ 149 #define VM_NFREEPOOL 3 150 #define VM_FREEPOOL_CACHE 2 151 #define VM_FREEPOOL_DEFAULT 0 152 #define VM_FREEPOOL_DIRECT 1 153 154 /* 155 * Create one free page list. 156 */ 157 #define VM_NFREELIST 1 158 #define VM_FREELIST_DEFAULT 0 159 160 /* 161 * The largest allocation size is 4MB. 162 */ 163 #define VM_NFREEORDER 11 164 165 /* 166 * Only one memory domain. 167 */ 168 #ifndef VM_NDOMAIN 169 #define VM_NDOMAIN 1 170 #endif 171 172 /* 173 * Disable superpage reservations. 174 */ 175 #ifndef VM_NRESERVLEVEL 176 #define VM_NRESERVLEVEL 0 177 #endif 178 179 #ifndef VM_INITIAL_PAGEIN 180 #define VM_INITIAL_PAGEIN 16 181 #endif 182 183 #ifndef SGROWSIZ 184 #define SGROWSIZ (128UL*1024) /* amount to grow stack */ 185 #endif 186 187 #ifndef VM_KMEM_SIZE 188 #define VM_KMEM_SIZE (12 * 1024 * 1024) 189 #endif 190 191 #ifdef __powerpc64__ 192 #ifndef VM_KMEM_SIZE_SCALE 193 #define VM_KMEM_SIZE_SCALE (3) 194 #endif 195 196 #ifndef VM_KMEM_SIZE_MAX 197 #define VM_KMEM_SIZE_MAX 0x1c0000000 /* 7 GB */ 198 #endif 199 #endif 200 201 #endif /* _MACHINE_VMPARAM_H_ */ 202