vmparam.h revision 1.7.2.2
1 1.7.2.2 nathanw /* $NetBSD: vmparam.h,v 1.7.2.2 2002/01/08 00:24:55 nathanw Exp $ */ 2 1.7.2.2 nathanw 3 1.7.2.2 nathanw /* 4 1.7.2.2 nathanw * Copyright (c) 1988 The Regents of the University of California. 5 1.7.2.2 nathanw * All rights reserved. 6 1.7.2.2 nathanw * 7 1.7.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.7.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.7.2.2 nathanw * are met: 10 1.7.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.7.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.7.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.7.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.7.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.7.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 16 1.7.2.2 nathanw * must display the following acknowledgement: 17 1.7.2.2 nathanw * This product includes software developed by the University of 18 1.7.2.2 nathanw * California, Berkeley and its contributors. 19 1.7.2.2 nathanw * 4. Neither the name of the University nor the names of its contributors 20 1.7.2.2 nathanw * may be used to endorse or promote products derived from this software 21 1.7.2.2 nathanw * without specific prior written permission. 22 1.7.2.2 nathanw * 23 1.7.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.7.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.7.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.7.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.7.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.7.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.7.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.7.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.7.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.7.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.7.2.2 nathanw * SUCH DAMAGE. 34 1.7.2.2 nathanw */ 35 1.7.2.2 nathanw 36 1.7.2.2 nathanw #ifndef _HPCARM_VMPARAM_H_ 37 1.7.2.2 nathanw #define _HPCARM_VMPARAM_H_ 38 1.7.2.2 nathanw 39 1.7.2.2 nathanw #ifdef _KERNEL 40 1.7.2.2 nathanw 41 1.7.2.2 nathanw #include <arm/arm32/vmparam.h> 42 1.7.2.2 nathanw 43 1.7.2.2 nathanw #define USRTEXT VM_MIN_ADDRESS 44 1.7.2.2 nathanw #define USRSTACK VM_MAXUSER_ADDRESS 45 1.7.2.2 nathanw 46 1.7.2.2 nathanw /* 47 1.7.2.2 nathanw * Note that MAXTSIZ mustn't be greater than 32M. Otherwise you'd have 48 1.7.2.2 nathanw * to change the compiler to not generate bl instructions 49 1.7.2.2 nathanw */ 50 1.7.2.2 nathanw #define MAXTSIZ (16*1024*1024) /* max text size */ 51 1.7.2.2 nathanw #ifndef DFLDSIZ 52 1.7.2.2 nathanw #define DFLDSIZ (128*1024*1024) /* initial data size limit */ 53 1.7.2.2 nathanw #endif 54 1.7.2.2 nathanw #ifndef MAXDSIZ 55 1.7.2.2 nathanw #define MAXDSIZ (512*1024*1024) /* max data size */ 56 1.7.2.2 nathanw #endif 57 1.7.2.2 nathanw #ifndef DFLSSIZ 58 1.7.2.2 nathanw #define DFLSSIZ (2*1024*1024) /* initial stack size limit */ 59 1.7.2.2 nathanw #endif 60 1.7.2.2 nathanw #ifndef MAXSSIZ 61 1.7.2.2 nathanw #define MAXSSIZ (8*1024*1024) /* max stack size */ 62 1.7.2.2 nathanw #endif 63 1.7.2.2 nathanw 64 1.7.2.2 nathanw /* 65 1.7.2.2 nathanw * Address space constants 66 1.7.2.2 nathanw */ 67 1.7.2.2 nathanw 68 1.7.2.2 nathanw #ifndef HPCARM 69 1.7.2.2 nathanw /* 70 1.7.2.2 nathanw * The line between user space and kernel space 71 1.7.2.2 nathanw * Mappings >= KERNEL_SPACE_START are constant across all processes 72 1.7.2.2 nathanw */ 73 1.7.2.2 nathanw #define KERNEL_SPACE_START 0xf0000000 74 1.7.2.2 nathanw 75 1.7.2.2 nathanw /* Various constants used by the MD code*/ 76 1.7.2.2 nathanw #define KERNEL_BASE 0xf0000000 77 1.7.2.2 nathanw #define KERNEL_TEXT_BASE KERNEL_BASE 78 1.7.2.2 nathanw #define ALT_PAGE_TBLS_BASE 0xf0c00000 79 1.7.2.2 nathanw #define KERNEL_VM_BASE 0xf1000000 80 1.7.2.2 nathanw #else /* defined(HPCARM) */ 81 1.7.2.2 nathanw #define KERNEL_SPACE_START 0xc0000000 82 1.7.2.2 nathanw #define KERNEL_BASE 0xc0040000 83 1.7.2.2 nathanw #define KERNEL_TEXT_BASE KERNEL_BASE 84 1.7.2.2 nathanw #define ALT_PAGE_TBLS_BASE 0xc0800000 85 1.7.2.2 nathanw #define KERNEL_VM_BASE 0xc0c00000 86 1.7.2.2 nathanw #endif /* defined(HPCARM) */ 87 1.7.2.2 nathanw 88 1.7.2.2 nathanw /* 89 1.7.2.2 nathanw * The Kernel VM Size varies depending on the machine depending on how 90 1.7.2.2 nathanw * much space is needed (and where) for other mappings. 91 1.7.2.2 nathanw * In some cases the chosen value may not be the maximum in order that 92 1.7.2.2 nathanw * we don't waste memory with kernel pages tables as we can't currently 93 1.7.2.2 nathanw * grow the kernel page tables after booting. 94 1.7.2.2 nathanw * You only need to increase these values if you find that the number of 95 1.7.2.2 nathanw * buffers is being limited due to lack of VA space. 96 1.7.2.2 nathanw */ 97 1.7.2.2 nathanw #ifdef HPCARM 98 1.7.2.2 nathanw #define KERNEL_VM_SIZE 0x03000000 99 1.7.2.2 nathanw #endif 100 1.7.2.2 nathanw 101 1.7.2.2 nathanw #define PROCESS_PAGE_TBLS_BASE PAGE_TABLE_SPACE_START 102 1.7.2.2 nathanw 103 1.7.2.2 nathanw /* 104 1.7.2.2 nathanw * Override the default pager_map size, there's not enough KVA. 105 1.7.2.2 nathanw */ 106 1.7.2.2 nathanw #define PAGER_MAP_SIZE (4 * 1024 * 1024) 107 1.7.2.2 nathanw 108 1.7.2.2 nathanw /* 109 1.7.2.2 nathanw * Size of User Raw I/O map 110 1.7.2.2 nathanw */ 111 1.7.2.2 nathanw 112 1.7.2.2 nathanw #define USRIOSIZE 300 113 1.7.2.2 nathanw 114 1.7.2.2 nathanw /* XXX max. amount of KVM to be used by buffers. */ 115 1.7.2.2 nathanw #ifndef VM_MAX_KERNEL_BUF 116 1.7.2.2 nathanw #define VM_MAX_KERNEL_BUF \ 117 1.7.2.2 nathanw ((VM_MAXKERN_ADDRESS - KERNEL_VM_BASE) * 4 / 10) 118 1.7.2.2 nathanw #endif 119 1.7.2.2 nathanw 120 1.7.2.2 nathanw /* virtual sizes (bytes) for various kernel submaps */ 121 1.7.2.2 nathanw 122 1.7.2.2 nathanw #define VM_PHYS_SIZE (USRIOSIZE*NBPG) 123 1.7.2.2 nathanw 124 1.7.2.2 nathanw /* 125 1.7.2.2 nathanw * max number of non-contig chunks of physical RAM you can have 126 1.7.2.2 nathanw */ 127 1.7.2.2 nathanw 128 1.7.2.2 nathanw #define VM_PHYSSEG_MAX 32 129 1.7.2.2 nathanw 130 1.7.2.2 nathanw /* 131 1.7.2.2 nathanw * when converting a physical address to a vm_page structure, we 132 1.7.2.2 nathanw * want to use a binary search on the chunks of physical memory 133 1.7.2.2 nathanw * to find our RAM 134 1.7.2.2 nathanw */ 135 1.7.2.2 nathanw 136 1.7.2.2 nathanw #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 137 1.7.2.2 nathanw 138 1.7.2.2 nathanw /* 139 1.7.2.2 nathanw * this indicates that we can't add RAM to the VM system after the 140 1.7.2.2 nathanw * vm system is init'd. 141 1.7.2.2 nathanw */ 142 1.7.2.2 nathanw 143 1.7.2.2 nathanw #define VM_PHYSSEG_NOADD 144 1.7.2.2 nathanw 145 1.7.2.2 nathanw /* 146 1.7.2.2 nathanw * we support 2 free lists: 147 1.7.2.2 nathanw * 148 1.7.2.2 nathanw * - DEFAULT for all systems 149 1.7.2.2 nathanw * - ISADMA for the ISA DMA range on Sharks only 150 1.7.2.2 nathanw */ 151 1.7.2.2 nathanw 152 1.7.2.2 nathanw #define VM_NFREELIST 2 153 1.7.2.2 nathanw #define VM_FREELIST_DEFAULT 0 154 1.7.2.2 nathanw #define VM_FREELIST_ISADMA 1 155 1.7.2.2 nathanw 156 1.7.2.2 nathanw #endif /* _KERNEL */ 157 1.7.2.2 nathanw 158 1.7.2.2 nathanw #endif /* _HPCARM_VMPARAM_H_ */ 159
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