vmparam.h revision 1.7.2.3
1 1.7.2.3 jdolecek /* $NetBSD: vmparam.h,v 1.7.2.3 2002/03/16 15:57:27 jdolecek Exp $ */ 2 1.7.2.2 jdolecek 3 1.7.2.2 jdolecek /* 4 1.7.2.2 jdolecek * Copyright (c) 1988 The Regents of the University of California. 5 1.7.2.2 jdolecek * All rights reserved. 6 1.7.2.2 jdolecek * 7 1.7.2.2 jdolecek * Redistribution and use in source and binary forms, with or without 8 1.7.2.2 jdolecek * modification, are permitted provided that the following conditions 9 1.7.2.2 jdolecek * are met: 10 1.7.2.2 jdolecek * 1. Redistributions of source code must retain the above copyright 11 1.7.2.2 jdolecek * notice, this list of conditions and the following disclaimer. 12 1.7.2.2 jdolecek * 2. Redistributions in binary form must reproduce the above copyright 13 1.7.2.2 jdolecek * notice, this list of conditions and the following disclaimer in the 14 1.7.2.2 jdolecek * documentation and/or other materials provided with the distribution. 15 1.7.2.2 jdolecek * 3. All advertising materials mentioning features or use of this software 16 1.7.2.2 jdolecek * must display the following acknowledgement: 17 1.7.2.2 jdolecek * This product includes software developed by the University of 18 1.7.2.2 jdolecek * California, Berkeley and its contributors. 19 1.7.2.2 jdolecek * 4. Neither the name of the University nor the names of its contributors 20 1.7.2.2 jdolecek * may be used to endorse or promote products derived from this software 21 1.7.2.2 jdolecek * without specific prior written permission. 22 1.7.2.2 jdolecek * 23 1.7.2.2 jdolecek * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 1.7.2.2 jdolecek * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 1.7.2.2 jdolecek * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 1.7.2.2 jdolecek * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 1.7.2.2 jdolecek * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 1.7.2.2 jdolecek * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 1.7.2.2 jdolecek * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 1.7.2.2 jdolecek * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 1.7.2.2 jdolecek * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 1.7.2.2 jdolecek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 1.7.2.2 jdolecek * SUCH DAMAGE. 34 1.7.2.2 jdolecek */ 35 1.7.2.2 jdolecek 36 1.7.2.2 jdolecek #ifndef _ARM32_VMPARAM_H_ 37 1.7.2.2 jdolecek #define _ARM32_VMPARAM_H_ 38 1.7.2.2 jdolecek 39 1.7.2.2 jdolecek #ifdef _KERNEL 40 1.7.2.2 jdolecek 41 1.7.2.2 jdolecek #include <arm/arm32/vmparam.h> 42 1.7.2.2 jdolecek 43 1.7.2.2 jdolecek /* 44 1.7.2.2 jdolecek * Address space constants 45 1.7.2.2 jdolecek */ 46 1.7.2.2 jdolecek 47 1.7.2.2 jdolecek /* 48 1.7.2.2 jdolecek * The line between user space and kernel space 49 1.7.2.2 jdolecek * Mappings >= KERNEL_SPACE_START are constant across all processes 50 1.7.2.2 jdolecek */ 51 1.7.2.3 jdolecek #define KERNEL_SPACE_START 0xc0000000 52 1.7.2.2 jdolecek 53 1.7.2.2 jdolecek /* Various constants used by the MD code*/ 54 1.7.2.3 jdolecek #define KERNEL_BASE 0xc0000000 55 1.7.2.2 jdolecek #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000) 56 1.7.2.2 jdolecek #define ALT_PAGE_TBLS_BASE (KERNEL_BASE + 0x00c00000) 57 1.7.2.2 jdolecek #define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000) 58 1.7.2.2 jdolecek /* 59 1.7.2.2 jdolecek * The Kernel VM Size varies depending on the machine depending on how 60 1.7.2.2 jdolecek * much space is needed (and where) for other mappings. 61 1.7.2.2 jdolecek * In some cases the chosen value may not be the maximum in order that 62 1.7.2.2 jdolecek * we don't waste memory with kernel pages tables as we can't currently 63 1.7.2.2 jdolecek * grow the kernel page tables after booting. 64 1.7.2.2 jdolecek * You only need to increase these values if you find that the number of 65 1.7.2.2 jdolecek * buffers is being limited due to lack of VA space. 66 1.7.2.2 jdolecek */ 67 1.7.2.2 jdolecek /* 68 1.7.2.3 jdolecek * The range 0xc1000000 - 0xccffffff is available for kernel VM space 69 1.7.2.2 jdolecek * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff 70 1.7.2.2 jdolecek */ 71 1.7.2.3 jdolecek #define KERNEL_VM_SIZE 0x0C000000 72 1.7.2.2 jdolecek #define PROCESS_PAGE_TBLS_BASE PAGE_TABLE_SPACE_START 73 1.7.2.2 jdolecek 74 1.7.2.2 jdolecek /* 75 1.7.2.2 jdolecek * Override the default pager_map size, there's not enough KVA. 76 1.7.2.2 jdolecek */ 77 1.7.2.2 jdolecek #define PAGER_MAP_SIZE (4 * 1024 * 1024) 78 1.7.2.2 jdolecek 79 1.7.2.2 jdolecek /* 80 1.7.2.2 jdolecek * Size of User Raw I/O map 81 1.7.2.2 jdolecek */ 82 1.7.2.2 jdolecek 83 1.7.2.2 jdolecek #define USRIOSIZE 300 84 1.7.2.2 jdolecek 85 1.7.2.2 jdolecek /* XXX max. amount of KVM to be used by buffers. */ 86 1.7.2.2 jdolecek #ifndef VM_MAX_KERNEL_BUF 87 1.7.2.2 jdolecek #define VM_MAX_KERNEL_BUF \ 88 1.7.2.3 jdolecek ((KERNEL_VM_SIZE) * 4 / 10) 89 1.7.2.2 jdolecek #endif 90 1.7.2.2 jdolecek 91 1.7.2.2 jdolecek /* virtual sizes (bytes) for various kernel submaps */ 92 1.7.2.2 jdolecek 93 1.7.2.2 jdolecek #define VM_PHYS_SIZE (USRIOSIZE*NBPG) 94 1.7.2.2 jdolecek 95 1.7.2.2 jdolecek /* 96 1.7.2.2 jdolecek * max number of non-contig chunks of physical RAM you can have 97 1.7.2.2 jdolecek */ 98 1.7.2.2 jdolecek 99 1.7.2.2 jdolecek #define VM_PHYSSEG_MAX 32 100 1.7.2.2 jdolecek 101 1.7.2.2 jdolecek /* 102 1.7.2.2 jdolecek * when converting a physical address to a vm_page structure, we 103 1.7.2.2 jdolecek * want to use a binary search on the chunks of physical memory 104 1.7.2.2 jdolecek * to find our RAM 105 1.7.2.2 jdolecek */ 106 1.7.2.2 jdolecek 107 1.7.2.2 jdolecek #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 108 1.7.2.2 jdolecek 109 1.7.2.2 jdolecek /* 110 1.7.2.2 jdolecek * this indicates that we can't add RAM to the VM system after the 111 1.7.2.2 jdolecek * vm system is init'd. 112 1.7.2.2 jdolecek */ 113 1.7.2.2 jdolecek 114 1.7.2.2 jdolecek #define VM_PHYSSEG_NOADD 115 1.7.2.2 jdolecek 116 1.7.2.2 jdolecek /* 117 1.7.2.2 jdolecek * we support 2 free lists: 118 1.7.2.2 jdolecek * 119 1.7.2.2 jdolecek * - DEFAULT for all systems 120 1.7.2.2 jdolecek * - ISADMA for the ISA DMA range on Sharks only 121 1.7.2.2 jdolecek */ 122 1.7.2.2 jdolecek 123 1.7.2.2 jdolecek #define VM_NFREELIST 2 124 1.7.2.2 jdolecek #define VM_FREELIST_DEFAULT 0 125 1.7.2.2 jdolecek #define VM_FREELIST_ISADMA 1 126 1.7.2.2 jdolecek 127 1.7.2.2 jdolecek #endif /* _KERNEL */ 128 1.7.2.2 jdolecek 129 1.7.2.2 jdolecek #endif /* _ARM32_VMPARAM_H_ */ 130
Indexes created Tue Oct 21 05:10:09 GMT 2025