1 /* $NetBSD: vmparam.h,v 1.26 2000/11/14 19:34:26 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 /* 37 * We use 8K pages on both the sun3 and sun3x. Override PAGE_* 38 * to be compile-time constants. 39 */ 40 #define PAGE_SHIFT 13 41 #define PAGE_SIZE (1 << PAGE_SHIFT) 42 #define PAGE_MASK (PAGE_SIZE - 1) 43 44 #ifdef _SUN3_ 45 #include <machine/vmparam3.h> 46 #endif /* SUN3 */ 47 #ifdef _SUN3X_ 48 #include <machine/vmparam3x.h> 49 #endif /* SUN3X */ 50 #ifdef _LKM 51 #define USRSTACK KERNBASE 52 extern char KERNBASE[]; 53 #endif /* _LKM */ 54 55 /* This is needed by some LKMs. */ 56 #define VM_PHYSSEG_MAX 4 57 struct pmap_physseg { 58 /* NULL */ 59 }; 60 61 /* 62 * The time for a process to be blocked before being very swappable. 63 * This is a number of seconds which the system takes as being a non-trivial 64 * amount of real time. You probably shouldn't change this; 65 * it is used in subtle ways (fractions and multiples of it are, that is, like 66 * half of a ``long time'', almost a long time, etc.) 67 * It is related to human patience and other factors which don't really 68 * change over time. 69 */ 70 #define MAXSLP 20 71