1 /* $NetBSD: vmparam.h,v 1.10 2021/09/11 20:28:04 andvar Exp $ */ 2 /*- 3 * Copyright (c) 2010, 2011 The NetBSD Foundation, Inc. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to The NetBSD Foundation 7 * by Raytheon BBN Technologies Corp and Defense Advanced Research Projects 8 * Agency and which was developed by Matt Thomas of 3am Software Foundry. 9 * 10 * This material is based upon work supported by the Defense Advanced Research 11 * Projects Agency and Space and Naval Warfare Systems Center, Pacific, under 12 * Contract No. N66001-09-C-2073. 13 * Approved for Public Release, Distribution Unlimited 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must reproduce the above copyright 21 * notice, this list of conditions and the following disclaimer in the 22 * documentation and/or other materials provided with the distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 */ 36 37 #ifndef _POWERPC_BOOKE_VMPARAM_H_ 38 #define _POWERPC_BOOKE_VMPARAM_H_ 39 40 /* 41 * Most of the definitions in this can be overridden by a machine-specific 42 * vmparam.h if required. Otherwise a port can just include this file 43 * get the right thing to happen. 44 */ 45 46 /* 47 * BookE processors have 4K pages. Override the PAGE_* definitions to be 48 * compile-time constants. 49 */ 50 #define PAGE_SHIFT 12 51 #define PAGE_SIZE (1 << PAGE_SHIFT) 52 #define PAGE_MASK (PAGE_SIZE - 1) 53 54 #ifndef USRSTACK 55 #define USRSTACK VM_MAXUSER_ADDRESS 56 #endif 57 58 #ifndef MAXTSIZ 59 #define MAXTSIZ (128*1024*1024) /* maximum text size */ 60 #endif 61 62 #ifndef MAXDSIZ 63 #define MAXDSIZ (1024*1024*1024) /* maximum data size */ 64 #endif 65 66 #ifndef MAXSSIZ 67 #define MAXSSIZ (32*1024*1024) /* maximum stack size */ 68 #endif 69 70 #ifndef DFLDSIZ 71 #define DFLDSIZ (256*1024*1024) /* default data size */ 72 #endif 73 74 #ifndef DFLSSIZ 75 #define DFLSSIZ (2*1024*1024) /* default stack size */ 76 #endif 77 78 /* 79 * Default number of pages in the user raw I/O map. 80 */ 81 #ifndef USRIOSIZE 82 #define USRIOSIZE 1024 83 #endif 84 85 /* 86 * The number of seconds for a process to be blocked before being 87 * considered very swappable. 88 */ 89 #ifndef MAXSLP 90 #define MAXSLP 20 91 #endif 92 93 /* 94 * Some system constants 95 */ 96 97 #define VM_MIN_ADDRESS ((vaddr_t) 0) 98 #define VM_MAXUSER_ADDRESS ((vaddr_t) /* -32768 */ 0xffff8000) 99 #define VM_MAX_ADDRESS VM_MAXUSER_ADDRESS 100 #define VM_MIN_KERNEL_ADDRESS ((vaddr_t) 0xe4000000) 101 #define VM_MAX_KERNEL_ADDRESS ((vaddr_t) 0xfefff000) 102 103 #define VM_PHYSSEG_STRAT VM_PSTRAT_BIGFIRST 104 105 #ifndef VM_PHYS_SIZE 106 #define VM_PHYS_SIZE (USRIOSIZE * PAGE_SIZE) 107 #endif 108 109 #include <uvm/pmap/vmpagemd.h> 110 111 #endif /* _POWERPC_BOOKE_VMPARAM_H_ */ 112