vmparam.h revision 265996
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: stable/10/sys/powerpc/include/vmparam.h 265996 2014-05-14 00:51:26Z ian $ 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(BOOKE) 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#define KERNBASE 0xc0000000 /* start of kernel virtual */ 112 113#define VM_MIN_KERNEL_ADDRESS KERNBASE 114#define VM_MAX_KERNEL_ADDRESS 0xf8000000 115 116#endif /* AIM/E500 */ 117 118#if !defined(LOCORE) 119struct pmap_physseg { 120 struct pv_entry *pvent; 121 char *attrs; 122}; 123#endif 124 125#define VM_PHYSSEG_MAX 16 /* 1? */ 126 127/* 128 * The physical address space is densely populated on 32-bit systems, 129 * but may not be on 64-bit ones. 130 */ 131#ifdef __powerpc64__ 132#define VM_PHYSSEG_SPARSE 133#else 134#define VM_PHYSSEG_DENSE 135#endif 136 137/* 138 * Create three free page pools: VM_FREEPOOL_DEFAULT is the default pool 139 * from which physical pages are allocated and VM_FREEPOOL_DIRECT is 140 * the pool from which physical pages for small UMA objects are 141 * allocated. 142 */ 143#define VM_NFREEPOOL 3 144#define VM_FREEPOOL_CACHE 2 145#define VM_FREEPOOL_DEFAULT 0 146#define VM_FREEPOOL_DIRECT 1 147 148/* 149 * Create one free page list. 150 */ 151#define VM_NFREELIST 1 152#define VM_FREELIST_DEFAULT 0 153 154/* 155 * The largest allocation size is 4MB. 156 */ 157#define VM_NFREEORDER 11 158 159/* 160 * Disable superpage reservations. 161 */ 162#ifndef VM_NRESERVLEVEL 163#define VM_NRESERVLEVEL 0 164#endif 165 166#ifndef VM_INITIAL_PAGEIN 167#define VM_INITIAL_PAGEIN 16 168#endif 169 170#ifndef SGROWSIZ 171#define SGROWSIZ (128UL*1024) /* amount to grow stack */ 172#endif 173 174#ifndef VM_KMEM_SIZE 175#define VM_KMEM_SIZE (12 * 1024 * 1024) 176#endif 177 178#ifdef __powerpc64__ 179#ifndef VM_KMEM_SIZE_SCALE 180#define VM_KMEM_SIZE_SCALE (3) 181#endif 182 183#ifndef VM_KMEM_SIZE_MAX 184#define VM_KMEM_SIZE_MAX 0x1c0000000 /* 7 GB */ 185#endif 186#endif 187 188#define ZERO_REGION_SIZE (64 * 1024) /* 64KB */ 189 190#endif /* _MACHINE_VMPARAM_H_ */ 191