1 /* $NetBSD: param.h,v 1.10 2009/03/14 14:46:02 dsl Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. 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 and Ralph Campbell. 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: machparam.h 1.11 89/08/14 36 * 37 * @(#)param.h 8.1 (Berkeley) 6/10/93 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 and Ralph Campbell. 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: machparam.h 1.11 89/08/14 75 * 76 * @(#)param.h 8.1 (Berkeley) 6/10/93 77 */ 78 79 /* 80 * Machine-dependent constants (VM, etc) common across MIPS cpus 81 */ 82 83 #ifndef _MIPSCO_PARAM_H_ 84 #define _MIPSCO_PARAM_H_ 85 86 #include <mips/mips_param.h> 87 88 /* 89 * Machine dependent constants for Mips Corp. machines 90 */ 91 92 #define _MACHINE_ARCH mipseb 93 #define MACHINE_ARCH "mipseb" 94 #define _MACHINE mipsco 95 #define MACHINE "mipsco" 96 #define MID_MACHINE MID_MIPS 97 98 #define KERNBASE 0x80000000 /* start of kernel virtual */ 99 #define KERNTEXTOFF 0x80001000 /* start of kernel text for kvm_mkdb */ 100 #define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) 101 102 #define DEV_BSIZE 512 103 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 104 #define BLKDEV_IOSIZE 2048 105 #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 106 107 /* 108 * Constants related to network buffer management. 109 * MCLBYTES must be no larger than NBPG (the software page size), and, 110 * on machines that exchange pages of input or output buffers with mbuf 111 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 112 * of the hardware page size. 113 */ 114 #define MSIZE 256 /* size of an mbuf */ 115 116 #ifndef MCLSHIFT 117 #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 118 /* 2K cluster can hold Ether frame */ 119 #endif /* MCLSHIFT */ 120 121 #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 122 123 #ifndef NMBCLUSTERS 124 #if defined(_KERNEL_OPT) 125 #include "opt_gateway.h" 126 #endif 127 128 #ifdef GATEWAY 129 #define NMBCLUSTERS 2048 /* map size, max cluster allocation */ 130 #else 131 #define NMBCLUSTERS 1024 /* map size, max cluster allocation */ 132 #endif 133 #endif 134 135 #ifdef _KERNEL 136 #ifndef _LOCORE 137 138 #include <machine/intr.h> 139 140 extern void delay(int n); 141 extern int cpuspeed; 142 static __inline void __attribute__((__unused__)) 143 DELAY(int n) 144 { 145 register int __N = cpuspeed * n; 146 147 do { 148 __asm("addiu %0,%1,-1" : "=r" (__N) : "0" (__N)); 149 } while (__N > 0); 150 } 151 152 #endif /* !_LOCORE */ 153 #endif /* _KERNEL */ 154 155 #endif /* !_MIPSCO_PARAM_H_ */ 156