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 #ifdef AIM 61 #define VM_MAXUSER_ADDRESS32 ((vm_offset_t)0xfffff000) 62 #else 63 #define VM_MAXUSER_ADDRESS32 ((vm_offset_t)0x7ffff000) 64 #endif 65 66 /* 67 * Would like to have MAX addresses = 0, but this doesn't (currently) work 68 */ 69 #if !defined(LOCORE) 70 #ifdef __powerpc64__ 71 #define VM_MIN_ADDRESS (0x0000000000000000UL) 72 #define VM_MAXUSER_ADDRESS (0xfffffffffffff000UL) 73 #define VM_MAX_ADDRESS (0xffffffffffffffffUL) 74 #else 75 #define VM_MIN_ADDRESS ((vm_offset_t)0) 76 #define VM_MAXUSER_ADDRESS VM_MAXUSER_ADDRESS32 77 #define VM_MAX_ADDRESS ((vm_offset_t)0xffffffff) 78 #endif 79 #define SHAREDPAGE (VM_MAXUSER_ADDRESS - PAGE_SIZE) 80 #else /* LOCORE */ 81 #if !defined(__powerpc64__) && defined(E500) 82 #define VM_MIN_ADDRESS 0 83 #define VM_MAXUSER_ADDRESS 0x7ffff000 84 #endif 85 #endif /* LOCORE */ 86 87 #define FREEBSD32_SHAREDPAGE (VM_MAXUSER_ADDRESS32 - PAGE_SIZE) 88 #define FREEBSD32_USRSTACK FREEBSD32_SHAREDPAGE 89 90 #ifdef AIM 91 #define KERNBASE 0x00100000UL /* start of kernel virtual */ 92 93 #ifdef __powerpc64__ 94 #define VM_MIN_KERNEL_ADDRESS 0xc000000000000000UL 95 #define VM_MAX_KERNEL_ADDRESS 0xc0000001c7ffffffUL 96 #define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS 97 #else 98 #define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)KERNEL_SR << ADDR_SR_SHFT) 99 #define VM_MAX_SAFE_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH -1) 100 #define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 3*SEGMENT_LENGTH - 1) 101 #endif 102 103 /* 104 * Use the direct-mapped BAT registers for UMA small allocs. This 105 * takes pressure off the small amount of available KVA. 106 */ 107 #define UMA_MD_SMALL_ALLOC 108 109 #else /* Book-E */ 110 111 /* 112 * Kernel CCSRBAR location. We make this the reset location. 113 */ 114 #define CCSRBAR_VA 0xfef00000 115 #define CCSRBAR_SIZE 0x00100000 116 117 #define KERNBASE 0xc0000000 /* start of kernel virtual */ 118 119 #define VM_MIN_KERNEL_ADDRESS KERNBASE 120 #define VM_MAX_KERNEL_ADDRESS 0xf8000000 121 122 #endif /* AIM/E500 */ 123 124 /* XXX max. amount of KVM to be used by buffers. */ 125 #ifndef VM_MAX_KERNEL_BUF 126 #define VM_MAX_KERNEL_BUF (SEGMENT_LENGTH * 7 / 10) 127 #endif 128 129 #if !defined(LOCORE) 130 struct pmap_physseg { 131 struct pv_entry *pvent; 132 char *attrs; 133 }; 134 #endif 135 136 #define VM_PHYSSEG_MAX 16 /* 1? */ 137 138 /* 139 * The physical address space is densely populated on 32-bit systems, 140 * but may not be on 64-bit ones. 141 */ 142 #ifdef __powerpc64__ 143 #define VM_PHYSSEG_SPARSE 144 #else 145 #define VM_PHYSSEG_DENSE 146 #endif 147 148 /* 149 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool 150 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is 151 * the pool from which physical pages for small UMA objects are 152 * allocated. 153 */ 154 #define VM_NFREEPOOL 3 155 #define VM_FREEPOOL_CACHE 2 156 #define VM_FREEPOOL_DEFAULT 0 157 #define VM_FREEPOOL_DIRECT 1 158 159 /* 160 * Create one free page list. 161 */ 162 #define VM_NFREELIST 1 163 #define VM_FREELIST_DEFAULT 0 164 165 /* 166 * The largest allocation size is 4MB. 167 */ 168 #define VM_NFREEORDER 11 169 170 /* 171 * Only one memory domain. 172 */ 173 #ifndef VM_NDOMAIN 174 #define VM_NDOMAIN 1 175 #endif 176 177 /* 178 * Disable superpage reservations. 179 */ 180 #ifndef VM_NRESERVLEVEL 181 #define VM_NRESERVLEVEL 0 182 #endif 183 184 #ifndef VM_INITIAL_PAGEIN 185 #define VM_INITIAL_PAGEIN 16 186 #endif 187 188 #ifndef SGROWSIZ 189 #define SGROWSIZ (128UL*1024) /* amount to grow stack */ 190 #endif 191 192 #ifndef VM_KMEM_SIZE 193 #define VM_KMEM_SIZE (12 * 1024 * 1024) 194 #endif 195 196 #ifdef __powerpc64__ 197 #ifndef VM_KMEM_SIZE_SCALE 198 #define VM_KMEM_SIZE_SCALE (3) 199 #endif 200 201 #ifndef VM_KMEM_SIZE_MAX 202 #define VM_KMEM_SIZE_MAX 0x1c0000000 /* 7 GB */ 203 #endif 204 #endif 205 206 #define ZERO_REGION_SIZE (64 * 1024) /* 64KB */ 207 208 #endif /* _MACHINE_VMPARAM_H_ */ 209