90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/* $NetBSD: cpu.h,v 1.14 1996/02/02 18:08:20 mycroft Exp $ */
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/*
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* Copyright (c) 1994 Ludd, University of Lule}, Sweden
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed at Ludd, University of Lule}
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* All bugs are subject to removal without further notice */
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#include <sys/cdefs.h>
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#include <machine/mtpr.h>
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#include <machine/pcb.h>
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#define enablertclock()
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#define cpu_wait(p)
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#define cpu_swapout(p)
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extern int cpunumber, cpu_type;
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extern struct cpu_dep cpu_calls[];
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struct cpu_dep {
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int (*cpu_steal_pages)(); /* Pmap init before mm is on */
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int (*cpu_clock)(); /* CPU dependent clock handling */
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int (*cpu_mchk)(); /* Machine check handling */
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int (*cpu_memerr)(); /* Memory subsystem errors */
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int (*cpu_conf)(); /* Autoconfiguration */
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/* int (*cpu_cmrerr)(); /* Memory parity errors */
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};
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struct clockframe {
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int pc;
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int ps;
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};
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#define setsoftnet() mtpr(12,PR_SIRR)
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#define setsoftclock() mtpr(8,PR_SIRR)
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/*
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* Preempt the current process if in interrupt from user mode,
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* or after the current trap/syscall if in system mode.
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*/
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#define need_resched(){ \
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want_resched++; \
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mtpr(AST_OK,PR_ASTLVL); \
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}
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/*
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* Notify the current process (p) that it has a signal pending,
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* process as soon as possible.
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*/
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#define signotify(p) mtpr(AST_OK,PR_ASTLVL);
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extern int want_resched; /* resched() was called */
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/*
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* Give a profiling tick to the current process when the user profiling
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* buffer pages are invalid. On the hp300, request an ast to send us
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* through trap, marking the proc as needing a profiling tick.
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*/
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#define need_proftick(p) {(p)->p_flag |= P_OWEUPC; mtpr(AST_OK,PR_ASTLVL); }
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