125 lines
4.4 KiB
C
125 lines
4.4 KiB
C
/* $NetBSD: cpu.h,v 1.33 1999/01/19 21:04:48 ragge 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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#ifdef _KERNEL
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#include <sys/cdefs.h>
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#include <sys/device.h>
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#include <machine/mtpr.h>
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#include <machine/pcb.h>
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#include <machine/uvax.h>
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#include <machine/psl.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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/*
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* All cpu-dependent info is kept in this struct. Pointer to the
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* struct for the current cpu is set up in locore.c.
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*/
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struct cpu_dep {
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void (*cpu_steal_pages) __P((void)); /* pmap init before mm is on */
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void (*cpu_clock) __P((void)); /* CPU dep RT clock start */
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int (*cpu_mchk) __P((caddr_t)); /* Machine check handling */
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void (*cpu_memerr) __P((void)); /* Memory subsystem errors */
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/* Autoconfiguration */
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void (*cpu_conf) __P((struct device *, struct device *, void *));
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int (*cpu_clkread) __P((time_t)); /* Read cpu clock time */
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void (*cpu_clkwrite) __P((void)); /* Write system time to cpu */
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short cpu_vups; /* speed of cpu */
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short cpu_scbsz; /* (estimated) size of system control block */
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void (*cpu_halt) __P((void)); /* Cpu dependent halt call */
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void (*cpu_reboot) __P((int)); /* Cpu dependent reboot call */
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void (*cpu_clrf) __P((void)); /* Clear cold/warm start flags */
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void (*cpu_subconf) __P((struct device *));/*config cpu dep. devs */
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};
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extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */
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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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extern struct device *booted_from;
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extern int cold;
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extern int mastercpu;
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extern int bootdev;
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#define setsoftnet() mtpr(12,PR_SIRR)
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#define setsoftclock() mtpr(8,PR_SIRR)
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#define todr() mfpr(PR_TODR)
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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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struct device;
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/* Some low-level prototypes */
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int badaddr __P((caddr_t, int));
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void cpu_swapin __P((struct proc *));
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int hp_getdev __P((int, int, struct device **));
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int ra_getdev __P((int, int, int, struct device **));
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void dumpconf __P((void));
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void dumpsys __P((void));
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void swapconf __P((void));
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void disk_printtype __P((int, int));
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void disk_reallymapin __P((struct buf *, struct pte *, int, int));
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#ifdef DDB
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int kdbrint __P((int));
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#endif
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#endif /* _KERNEL */
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