vmparam.h revision 1.3.2.4
1 1.3.2.4 nathanw /* $NetBSD: vmparam.h,v 1.3.2.4 2002/04/01 07:39:46 nathanw Exp $ */ 2 1.3.2.2 nathanw 3 1.3.2.2 nathanw /* 4 1.3.2.2 nathanw * Copyright (c) 1988 The Regents of the University of California. 5 1.3.2.2 nathanw * All rights reserved. 6 1.3.2.2 nathanw * 7 1.3.2.2 nathanw * Redistribution and use in source and binary forms, with or without 8 1.3.2.2 nathanw * modification, are permitted provided that the following conditions 9 1.3.2.2 nathanw * are met: 10 1.3.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 11 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer. 12 1.3.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 13 1.3.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 14 1.3.2.2 nathanw * documentation and/or other materials provided with the distribution. 15 1.3.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 16 1.3.2.2 nathanw * must display the following acknowledgement: 17 1.3.2.2 nathanw * This product includes software developed by the University of 18 1.3.2.2 nathanw * California, Berkeley and its contributors. 19 1.3.2.2 nathanw * 4. Neither the name of the University nor the names of its contributors 20 1.3.2.2 nathanw * may be used to endorse or promote products derived from this software 21 1.3.2.2 nathanw * without specific prior written permission. 22 1.3.2.2 nathanw * 23 1.3.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.3.2.2 nathanw * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.3.2.2 nathanw * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.3.2.2 nathanw * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.3.2.2 nathanw * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.3.2.2 nathanw * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.3.2.2 nathanw * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.3.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.3.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.3.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.3.2.2 nathanw * SUCH DAMAGE. 34 1.3.2.2 nathanw */ 35 1.3.2.2 nathanw 36 1.3.2.2 nathanw #ifndef _ARM32_VMPARAM_H_ 37 1.3.2.2 nathanw #define _ARM32_VMPARAM_H_ 38 1.3.2.2 nathanw 39 1.3.2.2 nathanw #ifdef _KERNEL 40 1.3.2.2 nathanw 41 1.3.2.2 nathanw #include <arm/arm32/vmparam.h> 42 1.3.2.2 nathanw 43 1.3.2.2 nathanw #define USRTEXT VM_MIN_ADDRESS 44 1.3.2.2 nathanw #define USRSTACK VM_MAXUSER_ADDRESS 45 1.3.2.2 nathanw 46 1.3.2.2 nathanw /* 47 1.3.2.2 nathanw * Note that MAXTSIZ mustn't be greater than 32M. Otherwise you'd have 48 1.3.2.2 nathanw * to change the compiler to not generate bl instructions 49 1.3.2.2 nathanw */ 50 1.3.2.2 nathanw #define MAXTSIZ (16*1024*1024) /* max text size */ 51 1.3.2.2 nathanw #ifndef DFLDSIZ 52 1.3.2.2 nathanw #define DFLDSIZ (128*1024*1024) /* initial data size limit */ 53 1.3.2.2 nathanw #endif 54 1.3.2.2 nathanw #ifndef MAXDSIZ 55 1.3.2.2 nathanw #define MAXDSIZ (512*1024*1024) /* max data size */ 56 1.3.2.2 nathanw #endif 57 1.3.2.2 nathanw #ifndef DFLSSIZ 58 1.3.2.2 nathanw #define DFLSSIZ (2*1024*1024) /* initial stack size limit */ 59 1.3.2.2 nathanw #endif 60 1.3.2.2 nathanw #ifndef MAXSSIZ 61 1.3.2.2 nathanw #define MAXSSIZ (8*1024*1024) /* max stack size */ 62 1.3.2.2 nathanw #endif 63 1.3.2.2 nathanw 64 1.3.2.2 nathanw /* 65 1.3.2.2 nathanw * Address space constants 66 1.3.2.2 nathanw */ 67 1.3.2.2 nathanw 68 1.3.2.2 nathanw /* 69 1.3.2.2 nathanw * The line between user space and kernel space 70 1.3.2.4 nathanw * Mappings >= KERNEL_BASE are constant across all processes 71 1.3.2.2 nathanw */ 72 1.3.2.4 nathanw #define KERNEL_BASE 0xc0000000 73 1.3.2.2 nathanw 74 1.3.2.2 nathanw /* Various constants used by the MD code*/ 75 1.3.2.3 nathanw #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 76 1.3.2.4 nathanw #define APTE_BASE (KERNEL_BASE + 0x00c00000) 77 1.3.2.2 nathanw #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 78 1.3.2.2 nathanw /* 79 1.3.2.2 nathanw * The Kernel VM Size varies depending on the machine depending on how 80 1.3.2.2 nathanw * much space is needed (and where) for other mappings. 81 1.3.2.2 nathanw * In some cases the chosen value may not be the maximum in order that 82 1.3.2.2 nathanw * we don't waste memory with kernel pages tables as we can't currently 83 1.3.2.2 nathanw * grow the kernel page tables after booting. 84 1.3.2.2 nathanw * You only need to increase these values if you find that the number of 85 1.3.2.2 nathanw * buffers is being limited due to lack of VA space. 86 1.3.2.2 nathanw */ 87 1.3.2.2 nathanw /* 88 1.3.2.4 nathanw * The range 0xc1000000 - 0xccffffff is available for kernel VM space 89 1.3.2.2 nathanw * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 90 1.3.2.2 nathanw */ 91 1.3.2.4 nathanw #define KERNEL_VM_SIZE 0x0C000000 92 1.3.2.2 nathanw 93 1.3.2.2 nathanw /* 94 1.3.2.2 nathanw * Override the default pager_map size, there's not enough KVA. 95 1.3.2.2 nathanw */ 96 1.3.2.2 nathanw #define PAGER_MAP_SIZE (4 * 1024 * 1024) 97 1.3.2.2 nathanw 98 1.3.2.2 nathanw /* 99 1.3.2.2 nathanw * Size of User Raw I/O map 100 1.3.2.2 nathanw */ 101 1.3.2.2 nathanw 102 1.3.2.2 nathanw #define USRIOSIZE 300 103 1.3.2.2 nathanw 104 1.3.2.2 nathanw /* XXX max. amount of KVM to be used by buffers. */ 105 1.3.2.2 nathanw #ifndef VM_MAX_KERNEL_BUF 106 1.3.2.2 nathanw #define VM_MAX_KERNEL_BUF \ 107 1.3.2.4 nathanw ((KERNEL_VM_SIZE) * 4 / 10) 108 1.3.2.2 nathanw #endif 109 1.3.2.2 nathanw 110 1.3.2.2 nathanw /* virtual sizes (bytes) for various kernel submaps */ 111 1.3.2.2 nathanw 112 1.3.2.2 nathanw #define VM_PHYS_SIZE (USRIOSIZE*NBPG) 113 1.3.2.2 nathanw 114 1.3.2.2 nathanw /* 115 1.3.2.2 nathanw * max number of non-contig chunks of physical RAM you can have 116 1.3.2.2 nathanw */ 117 1.3.2.2 nathanw 118 1.3.2.2 nathanw #define VM_PHYSSEG_MAX 32 119 1.3.2.2 nathanw 120 1.3.2.2 nathanw /* 121 1.3.2.2 nathanw * when converting a physical address to a vm_page structure, we 122 1.3.2.2 nathanw * want to use a binary search on the chunks of physical memory 123 1.3.2.2 nathanw * to find our RAM 124 1.3.2.2 nathanw */ 125 1.3.2.2 nathanw 126 1.3.2.2 nathanw #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 127 1.3.2.2 nathanw 128 1.3.2.2 nathanw /* 129 1.3.2.2 nathanw * this indicates that we can't add RAM to the VM system after the 130 1.3.2.2 nathanw * vm system is init'd. 131 1.3.2.2 nathanw */ 132 1.3.2.2 nathanw 133 1.3.2.2 nathanw #define VM_PHYSSEG_NOADD 134 1.3.2.2 nathanw 135 1.3.2.2 nathanw /* 136 1.3.2.2 nathanw * we support 2 free lists: 137 1.3.2.2 nathanw * 138 1.3.2.2 nathanw * - DEFAULT for all systems 139 1.3.2.2 nathanw * - ISADMA for the ISA DMA range on Sharks only 140 1.3.2.2 nathanw */ 141 1.3.2.2 nathanw 142 1.3.2.2 nathanw #define VM_NFREELIST 2 143 1.3.2.2 nathanw #define VM_FREELIST_DEFAULT 0 144 1.3.2.2 nathanw #define VM_FREELIST_ISADMA 1 145 1.3.2.2 nathanw 146 1.3.2.2 nathanw #endif /* _KERNEL */ 147 1.3.2.2 nathanw 148 1.3.2.2 nathanw #endif /* _ARM32_VMPARAM_H_ */ 149
Indexes created Tue Oct 21 08:09:48 GMT 2025