1 /* $NetBSD: cpuconf.h,v 1.1 2003/04/09 16:22:33 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)param.h 8.1 (Berkeley) 6/11/93 45 */ 46 /* 47 * Sun4M support by Aaron Brown, Harvard University. 48 * Changes Copyright (c) 1995 The President and Fellows of Harvard College. 49 * All rights reserved. 50 */ 51 52 #ifndef _SPARC_CPUCONF_H_ 53 #define _SPARC_CPUCONF_H_ 54 55 /* 56 * Values for the cputyp variable. 57 */ 58 #define CPU_SUN4 0 59 #define CPU_SUN4C 1 60 #define CPU_SUN4M 2 61 #define CPU_SUN4U 3 62 #define CPU_SUN4D 4 63 64 #if defined(_KERNEL) || defined(_STANDALONE) 65 66 #if defined(_KERNEL_OPT) 67 #include "opt_sparc_arch.h" 68 #endif /* _KERNEL_OPT */ 69 70 #ifndef _LOCORE 71 extern int cputyp; 72 #endif 73 74 /* 75 * Shorthand CPU-type macros. Let the compiler optimize away code 76 * conditional on constants. 77 */ 78 79 /* 80 * Step 1: Count the number of CPU types configured into the kernel. 81 */ 82 #if defined(_KERNEL_OPT) 83 #define CPU_NTYPES (defined(SUN4) + defined(SUN4C) + \ 84 defined(SUN4M) + defined(SUN4D)) 85 #else 86 #define CPU_NTYPES 0 87 #endif 88 89 /* 90 * Step 2: Define the CPU type predicates. Rules: 91 * 92 * * If multiple CPU types are configured in, and the CPU type 93 * is not one of them, then the test is always false. 94 * 95 * * If exactly one CPU type is configured in, and it's this 96 * one, then the test is always true. 97 * 98 * * Otherwise, we have to reference the cputyp variable. 99 */ 100 #if CPU_NTYPES != 0 && !defined(SUN4) 101 # define CPU_ISSUN4 (0) 102 #elif CPU_NTYPES == 1 && defined(SUN4) 103 # define CPU_ISSUN4 (1) 104 #else 105 # define CPU_ISSUN4 (cputyp == CPU_SUN4) 106 #endif 107 108 #if CPU_NTYPES != 0 && !defined(SUN4C) 109 # define CPU_ISSUN4C (0) 110 #elif CPU_NTYPES == 1 && defined(SUN4C) 111 # define CPU_ISSUN4C (1) 112 #else 113 # define CPU_ISSUN4C (cputyp == CPU_SUN4C) 114 #endif 115 116 #if CPU_NTYPES != 0 && !defined(SUN4M) 117 # define CPU_ISSUN4M (0) 118 #elif CPU_NTYPES == 1 && defined(SUN4M) 119 # define CPU_ISSUN4M (1) 120 #else 121 # define CPU_ISSUN4M (cputyp == CPU_SUN4M) 122 #endif 123 124 #if CPU_NTYPES != 0 && !defined(SUN4D) 125 # define CPU_ISSUN4D (0) 126 #elif CPU_NTYPES == 1 && defined(SUN4D) 127 # define CPU_ISSUN4D (1) 128 #else 129 # define CPU_ISSUN4D (cputyp == CPU_SUN4D) 130 #endif 131 132 #define CPU_ISSUN4U (0) 133 134 /* 135 * Step 3: Sun4M and Sun4D systems have an SRMMU. Define some 136 * short-hand for this. 137 */ 138 #define CPU_HAS_SRMMU (CPU_ISSUN4M || CPU_ISSUN4D) 139 140 #endif /* _KERNEL || _STANDALONE */ 141 142 #endif /* _SPARC_CPUCONF_H_ */ 143