1 /* $NetBSD: cpuconf.h,v 1.5 2016/10/08 20:30:54 joerg 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. 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 * @(#)param.h 8.1 (Berkeley) 6/11/93 41 */ 42 /* 43 * Sun4M support by Aaron Brown, Harvard University. 44 * Changes Copyright (c) 1995 The President and Fellows of Harvard College. 45 * All rights reserved. 46 */ 47 48 #ifndef _SPARC_CPUCONF_H_ 49 #define _SPARC_CPUCONF_H_ 50 51 /* 52 * Values for the cputyp variable. 53 */ 54 #define CPU_SUN4 0 55 #define CPU_SUN4C 1 56 #define CPU_SUN4M 2 57 #define CPU_SUN4U 3 58 #define CPU_SUN4D 4 59 60 #if defined(_KERNEL) || defined(_STANDALONE) 61 62 #if defined(_KERNEL_OPT) 63 #include "opt_sparc_arch.h" 64 #endif /* _KERNEL_OPT */ 65 66 #ifndef _LOCORE 67 extern int cputyp; 68 #endif 69 70 /* 71 * Shorthand CPU-type macros. Let the compiler optimize away code 72 * conditional on constants. 73 */ 74 75 /* 76 * Step 1: Count the number of CPU types configured into the kernel. 77 */ 78 #if defined(_KERNEL_OPT) 79 #ifdef SUN4 80 #define _CPU_NTYPES_SUN4 1 81 #else 82 #define _CPU_NTYPES_SUN4 0 83 #endif 84 #ifdef SUN4C 85 #define _CPU_NTYPES_SUN4C 1 86 #else 87 #define _CPU_NTYPES_SUN4C 0 88 #endif 89 #ifdef SUN4M 90 #define _CPU_NTYPES_SUN4M 1 91 #else 92 #define _CPU_NTYPES_SUN4M 0 93 #endif 94 #ifdef SUN4D 95 #define _CPU_NTYPES_SUN4D 1 96 #else 97 #define _CPU_NTYPES_SUN4D 0 98 #endif 99 #define CPU_NTYPES (_CPU_NTYPES_SUN4 + _CPU_NTYPES_SUN4C + \ 100 _CPU_NTYPES_SUN4M + _CPU_NTYPES_SUN4D) 101 #else 102 #define CPU_NTYPES 0 103 #endif 104 105 /* 106 * Step 2: Define the CPU type predicates. Rules: 107 * 108 * * If multiple CPU types are configured in, and the CPU type 109 * is not one of them, then the test is always false. 110 * 111 * * If exactly one CPU type is configured in, and it's this 112 * one, then the test is always true. 113 * 114 * * Otherwise, we have to reference the cputyp variable. 115 */ 116 #if CPU_NTYPES != 0 && !defined(SUN4) 117 # define CPU_ISSUN4 (0) 118 #elif CPU_NTYPES == 1 && defined(SUN4) 119 # define CPU_ISSUN4 (1) 120 #else 121 # define CPU_ISSUN4 (cputyp == CPU_SUN4) 122 #endif 123 124 #if CPU_NTYPES != 0 && !defined(SUN4C) 125 # define CPU_ISSUN4C (0) 126 #elif CPU_NTYPES == 1 && defined(SUN4C) 127 # define CPU_ISSUN4C (1) 128 #else 129 # define CPU_ISSUN4C (cputyp == CPU_SUN4C) 130 #endif 131 132 #if CPU_NTYPES != 0 && !defined(SUN4M) 133 # define CPU_ISSUN4M (0) 134 #elif CPU_NTYPES == 1 && defined(SUN4M) 135 # define CPU_ISSUN4M (1) 136 #else 137 # define CPU_ISSUN4M (cputyp == CPU_SUN4M) 138 #endif 139 140 #if CPU_NTYPES != 0 && !defined(SUN4D) 141 # define CPU_ISSUN4D (0) 142 #elif CPU_NTYPES == 1 && defined(SUN4D) 143 # define CPU_ISSUN4D (1) 144 #else 145 # define CPU_ISSUN4D (cputyp == CPU_SUN4D) 146 #endif 147 148 #define CPU_ISSUN4U (0) 149 150 /* 151 * Step 3: Define some short-hand for the different MMUs. 152 */ 153 #define CPU_HAS_SRMMU (CPU_ISSUN4M || CPU_ISSUN4D) 154 #define CPU_HAS_SUNMMU (CPU_ISSUN4 || CPU_ISSUN4C) 155 156 #endif /* _KERNEL || _STANDALONE */ 157 158 #endif /* _SPARC_CPUCONF_H_ */ 159