vmparam.h revision 209975
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: head/sys/powerpc/include/vmparam.h 209975 2010-07-13 05:32:19Z nwhitehorn $ 33 */ 34 35#ifndef _MACHINE_VMPARAM_H_ 36#define _MACHINE_VMPARAM_H_ 37 38#define USRSTACK VM_MAXUSER_ADDRESS 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 * Size of shared memory map 62 */ 63#ifndef SHMMAXPGS 64#define SHMMAXPGS 1024 65#endif 66 67/* 68 * The time for a process to be blocked before being very swappable. 69 * This is a number of seconds which the system takes as being a non-trivial 70 * amount of real time. You probably shouldn't change this; 71 * it is used in subtle ways (fractions and multiples of it are, that is, like 72 * half of a ``long time'', almost a long time, etc.) 73 * It is related to human patience and other factors which don't really 74 * change over time. 75 */ 76#define MAXSLP 20 77 78/* 79 * Would like to have MAX addresses = 0, but this doesn't (currently) work 80 */ 81#if !defined(LOCORE) 82#ifdef __powerpc64__ 83#define VM_MIN_ADDRESS (0x0000000000000000UL) 84#define VM_MAXUSER_ADDRESS (0x7ffffffffffff000UL) 85#define VM_MAX_ADDRESS (0xffffffffffffffffUL) 86#else 87#define VM_MIN_ADDRESS ((vm_offset_t)0) 88#define VM_MAXUSER_ADDRESS ((vm_offset_t)0x7ffff000) 89#define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 90#endif 91#else /* LOCORE */ 92#ifndef __powerpc64__ 93#define VM_MIN_ADDRESS 0 94#define VM_MAXUSER_ADDRESS 0x7ffff000 95#endif 96#endif /* LOCORE */ 97 98#define FREEBSD32_USRSTACK 0x7ffff000 99 100 101#ifdef AIM 102#define KERNBASE 0x00100000UL /* start of kernel virtual */ 103 104#ifdef __powerpc64__ 105#define VM_MIN_KERNEL_ADDRESS 0xc000000000000000UL 106#define VM_MAX_KERNEL_ADDRESS 0xc0000001c7ffffffUL 107#define VM_MAX_SAFE_KERNEL_ADDRESS VM_MAX_KERNEL_ADDRESS 108#else 109#define VM_MIN_KERNEL_ADDRESS ((vm_offset_t)KERNEL_SR << ADDR_SR_SHFT) 110#define VM_MAX_SAFE_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 2*SEGMENT_LENGTH -1) 111#define VM_MAX_KERNEL_ADDRESS (VM_MIN_KERNEL_ADDRESS + 3*SEGMENT_LENGTH - 1) 112#endif 113 114/* 115 * Use the direct-mapped BAT registers for UMA small allocs. This 116 * takes pressure off the small amount of available KVA. 117 */ 118#define UMA_MD_SMALL_ALLOC 119 120#else /* Book-E */ 121 122/* 123 * Kernel CCSRBAR location. We make this the reset location. 124 */ 125#define CCSRBAR_VA 0xfef00000 126#define CCSRBAR_SIZE 0x00100000 127 128#define KERNBASE 0xc0000000 /* start of kernel virtual */ 129 130#define VM_MIN_KERNEL_ADDRESS KERNBASE 131#define VM_MAX_KERNEL_ADDRESS 0xf8000000 132 133#endif /* AIM/E500 */ 134 135/* XXX max. amount of KVM to be used by buffers. */ 136#ifndef VM_MAX_KERNEL_BUF 137#define VM_MAX_KERNEL_BUF (SEGMENT_LENGTH * 7 / 10) 138#endif 139 140#if !defined(LOCORE) 141struct pmap_physseg { 142 struct pv_entry *pvent; 143 char *attrs; 144}; 145#endif 146 147#define VM_PHYSSEG_MAX 16 /* 1? */ 148 149/* 150 * The physical address space is densely populated. 151 */ 152#define VM_PHYSSEG_DENSE 153 154/* 155 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool 156 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is 157 * the pool from which physical pages for small UMA objects are 158 * allocated. 159 */ 160#define VM_NFREEPOOL 3 161#define VM_FREEPOOL_CACHE 2 162#define VM_FREEPOOL_DEFAULT 0 163#define VM_FREEPOOL_DIRECT 1 164 165/* 166 * Create one free page list. 167 */ 168#define VM_NFREELIST 1 169#define VM_FREELIST_DEFAULT 0 170 171/* 172 * The largest allocation size is 4MB. 173 */ 174#define VM_NFREEORDER 11 175 176/* 177 * Disable superpage reservations. 178 */ 179#ifndef VM_NRESERVLEVEL 180#define VM_NRESERVLEVEL 0 181#endif 182 183#ifndef VM_INITIAL_PAGEIN 184#define VM_INITIAL_PAGEIN 16 185#endif 186 187#ifndef SGROWSIZ 188#define SGROWSIZ (128UL*1024) /* amount to grow stack */ 189#endif 190 191#ifndef VM_KMEM_SIZE 192#define VM_KMEM_SIZE (12 * 1024 * 1024) 193#endif 194 195#ifdef __powerpc64__ 196#ifndef VM_KMEM_SIZE_SCALE 197#define VM_KMEM_SIZE_SCALE (3) 198#endif 199 200#ifndef VM_KMEM_SIZE_MAX 201#define VM_KMEM_SIZE_MAX 0x1c0000000 /* 7 GB */ 202#endif 203#endif 204 205#endif /* _MACHINE_VMPARAM_H_ */ 206