vmparam3x.h revision 1.17
1 /* $NetBSD: vmparam3x.h,v 1.17 2003/08/07 16:29:56 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1990 The Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer 9 * Science Department. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * from: Utah $Hdr: vmparam.h 1.16 91/01/18$ 36 * from: @(#)vmparam.h 7.3 (Berkeley) 5/7/91 37 * vmparam.h,v 1.2 1993/05/22 07:58:38 cgd Exp 38 */ 39 /* 40 * Copyright (c) 1988 University of Utah. 41 * 42 * This code is derived from software contributed to Berkeley by 43 * the Systems Programming Group of the University of Utah Computer 44 * Science Department. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. All advertising materials mentioning features or use of this software 55 * must display the following acknowledgement: 56 * This product includes software developed by the University of 57 * California, Berkeley and its contributors. 58 * 4. Neither the name of the University nor the names of its contributors 59 * may be used to endorse or promote products derived from this software 60 * without specific prior written permission. 61 * 62 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 63 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 64 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 65 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 66 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 67 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 68 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 69 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 70 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 71 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 72 * SUCH DAMAGE. 73 * 74 * from: Utah $Hdr: vmparam.h 1.16 91/01/18$ 75 * from: @(#)vmparam.h 7.3 (Berkeley) 5/7/91 76 * vmparam.h,v 1.2 1993/05/22 07:58:38 cgd Exp 77 */ 78 79 /* 80 * Machine dependent constants for Sun3X 81 */ 82 83 /* 84 * USRSTACK is the top (end) of the user stack. 85 */ 86 #define USRSTACK KERNBASE /* High end of user stack */ 87 88 /* 89 * Virtual memory related constants, all in bytes 90 */ 91 #ifndef MAXTSIZ 92 #define MAXTSIZ (8*1024*1024) /* max text size */ 93 #endif 94 #ifndef DFLDSIZ 95 #define DFLDSIZ (32*1024*1024) /* initial data size limit */ 96 #endif 97 #ifndef MAXDSIZ 98 #define MAXDSIZ (128*1024*1024) /* max data size */ 99 #endif 100 #ifndef DFLSSIZ 101 #define DFLSSIZ (2*1024*1024) /* initial stack size limit */ 102 #endif 103 #ifndef MAXSSIZ 104 #define MAXSSIZ (32*1024*1024) /* max stack size */ 105 #endif 106 107 /* 108 * PTEs for mapping user space into the kernel for phyio operations. 109 * The actual limitation for physio requests will be the DVMA space, 110 * and that is fixed by hardware design at 1MB. We could make the 111 * physio map larger than that, but it would not buy us much. 112 */ 113 #ifndef USRIOSIZE 114 #define USRIOSIZE 128 /* 1 MB */ 115 #endif 116 117 /* 118 * PTEs for system V style shared memory. 119 * This is basically slop for kmempt which we actually allocate (malloc) from. 120 */ 121 #ifndef SHMMAXPGS 122 #define SHMMAXPGS 2048 /* 16 MB */ 123 #endif 124
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