1 /* $NetBSD: param.h,v 1.3 2001/05/14 20:35:58 fredette Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1982, 1986, 1990, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah Hdr: machparam.h 1.16 92/12/20 41 * from: @(#)param.h 8.1 (Berkeley) 6/10/93 42 */ 43 44 #ifndef _MACHINE_PARAM_H_ 45 #define _MACHINE_PARAM_H_ 46 47 /* 48 * Machine dependent constants for the Sun2 series. 49 */ 50 #define _MACHINE sun2 51 #define MACHINE "sun2" 52 #define _MACHINE_ARCH m68000 53 #define MACHINE_ARCH "m68000" 54 #define MID_MACHINE MID_M680002K 55 56 #define PGSHIFT 11 /* LOG2(NBPG) */ 57 58 #ifdef MSGBUFSIZE 59 #error "MSGBUFSIZE is not user-adjustable for this arch" 60 #endif 61 #define MSGBUFOFF 0x0 62 #define MSGBUFSIZE ((NBPG * 4) - MSGBUFOFF) 63 64 /* This is needed by ps (actually USPACE). */ 65 #define UPAGES (16384 / NBPG) /* pages of u-area */ 66 67 #if defined(_KERNEL) || defined(_STANDALONE) 68 69 #define KERNBASE 0x00006000 /* start of kernel virtual */ 70 #define KERN_END 0x00E00000 /* end of kernel virtual */ 71 72 #define SEGSHIFT 15 /* LOG2(NBSG) */ 73 #define NBSG (1 << SEGSHIFT) /* bytes/segment */ 74 #define SEGOFSET (NBSG-1) /* byte offset into segment */ 75 76 #define MAXBSIZE 0x2000 /* max FS block size */ 77 78 /* 79 * XXX fredette - we force a small number of mbuf clusters and cluster 80 * size to help me debug this on my low-memory machine. These should 81 * go away at some point. 82 */ 83 #define NMBCLUSTERS 64 /* map size, max cluster allocation */ 84 #define MCLSHIFT 10 85 86 /* 87 * XXX fredette - we must define this, otw UBC consumes 8MB of kernel VM. 88 * For now, we make it absurdly small, perhaps it can grow later. 89 */ 90 #define UBC_NWINS 32 91 92 #endif /* _KERNEL */ 93 94 #include <m68k/param.h> 95 96 /* 97 * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized 98 * logical pages. 99 */ 100 #define NKMEMPAGES_MIN_DEFAULT ((3 * 1024 * 1024) >> PAGE_SHIFT) 101 #define NKMEMPAGES_MAX_DEFAULT ((3 * 1024 * 1024) >> PAGE_SHIFT) 102 103 #if defined(_KERNEL) && !defined(_LOCORE) 104 105 /* XXX - Does this really belong here? -gwr */ 106 #include <machine/psl.h> 107 108 extern void _delay __P((unsigned)); 109 #define delay(us) _delay((us)<<8) 110 #define DELAY(n) delay(n) 111 112 #endif /* _KERNEL && !_LOCORE */ 113 #endif /* !_MACHINE_PARAM_H_ */ 114