1 /* $NetBSD: param.h,v 1.2 2011/02/08 20:20:11 rmind Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 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 and Ralph Campbell. 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. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: Utah Hdr: machparam.h 1.11 89/08/14 37 * 38 * @(#)param.h 8.1 (Berkeley) 6/10/93 39 */ 40 41 #ifndef _EMIPS_PARAM_H_ 42 #define _EMIPS_PARAM_H_ 43 44 /* 45 * Machine-dependent constants (VM, etc) common across MIPS cpus 46 */ 47 48 #include <mips/mips_param.h> 49 50 /* 51 * Machine dependent constants for mips-based DECstations. 52 */ 53 54 #define _MACHINE_ARCH mipseb 55 #define MACHINE_ARCH "mipseb" 56 #define _MACHINE emips 57 #define MACHINE "emips" 58 #define MID_MACHINE MID_MIPS 59 60 #define DEV_BSIZE 512 61 #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ 62 #define BLKDEV_IOSIZE 2048 63 #define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ 64 65 /* 66 * Constants related to network buffer management. 67 * MCLBYTES must be no larger than NBPG (the software page size), and, 68 * on machines that exchange pages of input or output buffers with mbuf 69 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple 70 * of the hardware page size. 71 */ 72 #define MSIZE 256 /* size of an mbuf */ 73 74 #ifndef MCLSHIFT 75 #define MCLSHIFT 11 /* convert bytes to m_buf clusters */ 76 /* 2K cluster can hold Ether frame */ 77 #endif /* MCLSHIFT */ 78 79 #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ 80 81 #ifndef NMBCLUSTERS 82 #if defined(_KERNEL_OPT) 83 #include "opt_gateway.h" 84 #endif 85 86 #ifdef GATEWAY 87 #define NMBCLUSTERS 2048 /* map size, max cluster allocation */ 88 #else 89 #define NMBCLUSTERS 1024 /* map size, max cluster allocation */ 90 #endif 91 #endif 92 93 #ifdef _KERNEL 94 #ifndef _LOCORE 95 96 void delay __P((int n)); 97 extern int cpuspeed; 98 static __inline void __attribute__((__unused__)) 99 DELAY(int n) 100 { 101 register int __N = cpuspeed * n; 102 103 do { 104 __asm("addiu %0,%1,-1" : "=r" (__N) : "0" (__N)); 105 } while (__N > 0); 106 } 107 108 #include <machine/intr.h> 109 110 #endif /* !_LOCORE */ 111 #endif /* _KERNEL */ 112 113 #endif /* !_EMIPS_PARAM_H_ */ 114