1 /* $NetBSD: cpuconf.h,v 1.4 2005/12/11 12:19:05 christos 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 #define CPU_NTYPES (defined(SUN4) + defined(SUN4C) + \ 80 defined(SUN4M) + defined(SUN4D)) 81 #else 82 #define CPU_NTYPES 0 83 #endif 84 85 /* 86 * Step 2: Define the CPU type predicates. Rules: 87 * 88 * * If multiple CPU types are configured in, and the CPU type 89 * is not one of them, then the test is always false. 90 * 91 * * If exactly one CPU type is configured in, and it's this 92 * one, then the test is always true. 93 * 94 * * Otherwise, we have to reference the cputyp variable. 95 */ 96 #if CPU_NTYPES != 0 && !defined(SUN4) 97 # define CPU_ISSUN4 (0) 98 #elif CPU_NTYPES == 1 && defined(SUN4) 99 # define CPU_ISSUN4 (1) 100 #else 101 # define CPU_ISSUN4 (cputyp == CPU_SUN4) 102 #endif 103 104 #if CPU_NTYPES != 0 && !defined(SUN4C) 105 # define CPU_ISSUN4C (0) 106 #elif CPU_NTYPES == 1 && defined(SUN4C) 107 # define CPU_ISSUN4C (1) 108 #else 109 # define CPU_ISSUN4C (cputyp == CPU_SUN4C) 110 #endif 111 112 #if CPU_NTYPES != 0 && !defined(SUN4M) 113 # define CPU_ISSUN4M (0) 114 #elif CPU_NTYPES == 1 && defined(SUN4M) 115 # define CPU_ISSUN4M (1) 116 #else 117 # define CPU_ISSUN4M (cputyp == CPU_SUN4M) 118 #endif 119 120 #if CPU_NTYPES != 0 && !defined(SUN4D) 121 # define CPU_ISSUN4D (0) 122 #elif CPU_NTYPES == 1 && defined(SUN4D) 123 # define CPU_ISSUN4D (1) 124 #else 125 # define CPU_ISSUN4D (cputyp == CPU_SUN4D) 126 #endif 127 128 #define CPU_ISSUN4U (0) 129 130 /* 131 * Step 3: Define some short-hand for the different MMUs. 132 */ 133 #define CPU_HAS_SRMMU (CPU_ISSUN4M || CPU_ISSUN4D) 134 #define CPU_HAS_SUNMMU (CPU_ISSUN4 || CPU_ISSUN4C) 135 136 #endif /* _KERNEL || _STANDALONE */ 137 138 #endif /* _SPARC_CPUCONF_H_ */ 139