1 /* $NetBSD: vmparam.h,v 1.27 2010/11/06 15:42:44 uebayasi Exp $ */ 2 3 /* 4 * Copyright (c) 1988 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _ARM32_VMPARAM_H_ 33 #define _ARM32_VMPARAM_H_ 34 35 #ifdef _KERNEL 36 37 #include <arm/arm32/vmparam.h> 38 39 /* 40 * Address space constants 41 */ 42 43 /* 44 * The line between user space and kernel space 45 * Mappings >= KERNEL_BASE are constant across all processes 46 */ 47 #define KERNEL_BASE 0xf0000000 48 49 /* 50 * Override the default pager_map size, there's not enough KVA. 51 */ 52 #define PAGER_MAP_DEFAULT_SIZE (4 * 1024 * 1024) 53 54 /* 55 * Size of User Raw I/O map 56 */ 57 58 #define USRIOSIZE 300 59 60 /* virtual sizes (bytes) for various kernel submaps */ 61 62 #define VM_PHYS_SIZE (USRIOSIZE*PAGE_SIZE) 63 64 /* 65 * max number of non-contig chunks of physical RAM you can have 66 */ 67 68 #define VM_PHYSSEG_MAX 32 69 70 /* 71 * when converting a physical address to a vm_page structure, we 72 * want to use a binary search on the chunks of physical memory 73 * to find our RAM 74 */ 75 76 #define VM_PHYSSEG_STRAT VM_PSTRAT_BSEARCH 77 78 /* 79 * we support 2 free lists: 80 * 81 * - DEFAULT for all systems 82 * - ISADMA for the ISA DMA range on Sharks only 83 */ 84 85 #define VM_NFREELIST 2 86 #define VM_FREELIST_DEFAULT 0 87 #define VM_FREELIST_ISADMA 1 88 89 #endif /* _KERNEL */ 90 91 #endif /* _ARM32_VMPARAM_H_ */ 92