1 /* $NetBSD: cpu.h,v 1.4 1994/11/25 19:08:50 ragge Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Ludd, University of Lule}, Sweden 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed at Ludd, University of Lule} 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* All bugs are subject to removal without further notice */ 34 35 #include "cdefs.h" 36 #include "vax/include/mtpr.h" 37 38 #define enablertclock() 39 40 41 struct cpu_dep { 42 int (*cpu_loinit)(); 43 int (*cpu_clock)(); 44 int (*cpu_mem)(); 45 int (*cpu_config)(); 46 }; 47 48 struct clockframe { 49 int pc; 50 int ps; 51 }; 52 53 struct cpuops { 54 int *nisse; 55 int (*cpu_memenable)(); 56 int (*cpu_memerr)(); 57 int (*cpu_mchk)(); 58 int (*cpu_init)(); 59 }; 60 61 struct percpu { 62 int pc_cputype; 63 int pc_cpuspeed; 64 int pc_nioa; 65 struct iobus *pc_io; 66 struct cpuops *pc_ops; 67 }; 68 69 struct clockops { 70 int (*p1)(); 71 int (*p2)(); 72 int (*p3)(); 73 }; 74 75 #define todr() mfpr(PR_TODR) 76 #define setsoftnet() mtpr(12,PR_SIRR) 77 #define setsoftclock() mtpr(8,PR_SIRR) 78 79 /* 80 * Preempt the current process if in interrupt from user mode, 81 * or after the current trap/syscall if in system mode. 82 */ 83 84 #define need_resched(){ \ 85 want_resched++; \ 86 mtpr(AST_OK,PR_ASTLVL); \ 87 } 88 89 /* 90 * Notify the current process (p) that it has a signal pending, 91 * process as soon as possible. 92 */ 93 94 #define signotify(p) mtpr(AST_OK,PR_ASTLVL); 95 96 extern int want_resched; /* resched() was called */ 97 98