1 /* $NetBSD: param.h,v 1.4 2019/01/07 22:00:31 jdolecek 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 for mips-based DECstations.
46 */
47
48 #define _MACHINE emips
49 #define MACHINE "emips"
50
51 #include <mips/mips_param.h>
52
53 /*
54 * Constants related to network buffer management.
55 * MCLBYTES must be no larger than NBPG (the software page size), and,
56 * on machines that exchange pages of input or output buffers with mbuf
57 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
58 * of the hardware page size.
59 */
60 #define MSIZE 256 /* size of an mbuf */
61
62 #ifndef MCLSHIFT
63 #define MCLSHIFT 11 /* convert bytes to m_buf clusters */
64 /* 2K cluster can hold Ether frame */
65 #endif /* MCLSHIFT */
66
67 #define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
68
69 #ifndef NMBCLUSTERS
70 #if defined(_KERNEL_OPT)
71 #include "opt_gateway.h"
72 #endif
73
74 #ifdef GATEWAY
75 #define NMBCLUSTERS 2048 /* map size, max cluster allocation */
76 #else
77 #define NMBCLUSTERS 1024 /* map size, max cluster allocation */
78 #endif
79 #endif
80
81 #ifdef _KERNEL
82 #ifndef _LOCORE
83
84 void delay __P((int n));
85 extern int cpuspeed;
86 static __inline void __attribute__((__unused__))
DELAY(int n)87 DELAY(int n)
88 {
89 register int __N = cpuspeed * n;
90
91 do {
92 __asm("addiu %0,%1,-1" : "=r" (__N) : "0" (__N));
93 } while (__N > 0);
94 }
95
96 #include <machine/intr.h>
97
98 #endif /* !_LOCORE */
99 #endif /* _KERNEL */
100
101 #endif /* !_EMIPS_PARAM_H_ */
102