1 /* $NetBSD: cpu.h,v 1.7 1995/03/30 20:42:55 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 "sys/cdefs.h" 36 #include "machine/mtpr.h" 37 #include "machine/pcb.h" 38 39 #define enablertclock() 40 #define cpu_swapin(p) 41 #define cpu_set_init_frame(p,f)\ 42 {extern u_int scratch;p->p_addr->u_pcb.framep=scratch;} 43 #define cpu_wait(p) 44 45 46 extern volatile int cpunumber; 47 extern struct cpu_dep cpu_calls[]; 48 49 struct cpu_dep { 50 int (*cpu_loinit)(); /* Locore init before everything else */ 51 int (*cpu_clock)(); /* CPU dependent clock handling */ 52 int (*cpu_mchk)(); /* Machine check handling */ 53 int (*cpu_memerr)(); /* Memory subsystem errors */ 54 int (*cpu_conf)(); /* Autoconfiguration */ 55 }; 56 57 struct clockframe { 58 int pc; 59 int ps; 60 }; 61 62 #if !defined(VAX630) && !defined(VAX410) 63 #define todr() mfpr(PR_TODR) 64 #endif 65 #define setsoftnet() mtpr(12,PR_SIRR) 66 #define setsoftclock() mtpr(8,PR_SIRR) 67 68 /* 69 * Preempt the current process if in interrupt from user mode, 70 * or after the current trap/syscall if in system mode. 71 */ 72 73 #define need_resched(){ \ 74 want_resched++; \ 75 mtpr(AST_OK,PR_ASTLVL); \ 76 } 77 78 /* 79 * Notify the current process (p) that it has a signal pending, 80 * process as soon as possible. 81 */ 82 83 #define signotify(p) mtpr(AST_OK,PR_ASTLVL); 84 85 extern int want_resched; /* resched() was called */ 86 87 /* 88 * Give a profiling tick to the current process when the user profiling 89 * buffer pages are invalid. On the hp300, request an ast to send us 90 * through trap, marking the proc as needing a profiling tick. 91 */ 92 #define need_proftick(p) {(p)->p_flag |= P_OWEUPC; mtpr(AST_OK,PR_ASTLVL); } 93 94