vmparam.h revision 1.7.2.5
1 1.7.2.5 nathanw /* $NetBSD: vmparam.h,v 1.7.2.5 2002/04/17 00:03:03 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 /* 44 1.7.2.2 nathanw * Address space constants 45 1.7.2.2 nathanw */ 46 1.7.2.2 nathanw 47 1.7.2.2 nathanw /* 48 1.7.2.2 nathanw * The line between user space and kernel space 49 1.7.2.4 nathanw * Mappings >= KERNEL_BASE are constant across all processes 50 1.7.2.2 nathanw */ 51 1.7.2.4 nathanw #define KERNEL_BASE 0xc0000000 52 1.7.2.2 nathanw 53 1.7.2.2 nathanw /* Various constants used by the MD code*/ 54 1.7.2.4 nathanw #define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00040000) 55 1.7.2.4 nathanw #define APTE_BASE (KERNEL_BASE + 0x00800000) 56 1.7.2.4 nathanw #define KERNEL_VM_BASE (KERNEL_BASE + 0x00c00000) 57 1.7.2.2 nathanw 58 1.7.2.2 nathanw /* 59 1.7.2.2 nathanw * The Kernel VM Size varies depending on the machine depending on how 60 1.7.2.2 nathanw * much space is needed (and where) for other mappings. 61 1.7.2.2 nathanw * In some cases the chosen value may not be the maximum in order that 62 1.7.2.2 nathanw * we don't waste memory with kernel pages tables as we can't currently 63 1.7.2.2 nathanw * grow the kernel page tables after booting. 64 1.7.2.2 nathanw * You only need to increase these values if you find that the number of 65 1.7.2.2 nathanw * buffers is being limited due to lack of VA space. 66 1.7.2.2 nathanw */ 67 1.7.2.3 nathanw #define KERNEL_VM_SIZE 0x05000000 68 1.7.2.2 nathanw 69 1.7.2.2 nathanw /* 70 1.7.2.2 nathanw * Override the default pager_map size, there's not enough KVA. 71 1.7.2.2 nathanw */ 72 1.7.2.2 nathanw #define PAGER_MAP_SIZE (4 * 1024 * 1024) 73 1.7.2.2 nathanw 74 1.7.2.2 nathanw /* 75 1.7.2.2 nathanw * Size of User Raw I/O map 76 1.7.2.2 nathanw */ 77 1.7.2.2 nathanw 78 1.7.2.2 nathanw #define USRIOSIZE 300 79 1.7.2.2 nathanw 80 1.7.2.2 nathanw /* XXX max. amount of KVM to be used by buffers. */ 81 1.7.2.2 nathanw #ifndef VM_MAX_KERNEL_BUF 82 1.7.2.2 nathanw #define VM_MAX_KERNEL_BUF \ 83 1.7.2.4 nathanw ((KERNEL_VM_SIZE) * 4 / 10) 84 1.7.2.2 nathanw #endif 85 1.7.2.2 nathanw 86 1.7.2.2 nathanw /* virtual sizes (bytes) for various kernel submaps */ 87 1.7.2.2 nathanw 88 1.7.2.2 nathanw #define VM_PHYS_SIZE (USRIOSIZE*NBPG) 89 1.7.2.2 nathanw 90 1.7.2.2 nathanw /* 91 1.7.2.2 nathanw * max number of non-contig chunks of physical RAM you can have 92 1.7.2.2 nathanw */ 93 1.7.2.2 nathanw 94 1.7.2.2 nathanw #define VM_PHYSSEG_MAX 32 95 1.7.2.2 nathanw 96 1.7.2.2 nathanw /* 97 1.7.2.2 nathanw * when converting a physical address to a vm_page structure, we 98 1.7.2.2 nathanw * want to use a binary search on the chunks of physical memory 99 1.7.2.2 nathanw * to find our RAM 100 1.7.2.2 nathanw */ 101 1.7.2.2 nathanw 102 1.7.2.2 nathanw #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 103 1.7.2.2 nathanw 104 1.7.2.2 nathanw /* 105 1.7.2.2 nathanw * this indicates that we can't add RAM to the VM system after the 106 1.7.2.2 nathanw * vm system is init'd. 107 1.7.2.2 nathanw */ 108 1.7.2.2 nathanw 109 1.7.2.2 nathanw #define VM_PHYSSEG_NOADD 110 1.7.2.2 nathanw 111 1.7.2.2 nathanw /* 112 1.7.2.2 nathanw * we support 2 free lists: 113 1.7.2.2 nathanw * 114 1.7.2.2 nathanw * - DEFAULT for all systems 115 1.7.2.2 nathanw * - ISADMA for the ISA DMA range on Sharks only 116 1.7.2.2 nathanw */ 117 1.7.2.2 nathanw 118 1.7.2.2 nathanw #define VM_NFREELIST 2 119 1.7.2.2 nathanw #define VM_FREELIST_DEFAULT 0 120 1.7.2.2 nathanw #define VM_FREELIST_ISADMA 1 121 1.7.2.2 nathanw 122 1.7.2.2 nathanw #endif /* _KERNEL */ 123 1.7.2.2 nathanw 124 1.7.2.2 nathanw #endif /* _HPCARM_VMPARAM_H_ */ 125
Indexes created Thu Oct 02 10:09:58 GMT 2025