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/* $OpenBSD: cpu.h,v 1.8 1997/09/12 09:21:19 maja Exp $ */
/* $NetBSD: cpu.h,v 1.24 1997/07/26 10:12:40 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed at Ludd, University of Lule}
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#include <sys/device.h>
#include <machine/mtpr.h>
#include <machine/pcb.h>
#include <machine/uvax.h>
#define enablertclock()
#define cpu_wait(p)
#define cpu_swapout(p)
/*
* All cpu-dependent info is kept in this struct. Pointer to the
* struct for the current cpu is set up in locore.c.
*/
struct cpu_dep {
void (*cpu_steal_pages) __P((void)); /* pmap init before mm is on */
void (*cpu_clock) __P((void)); /* CPU dep RT clock start */
int (*cpu_mchk) __P((caddr_t)); /* Machine check handling */
void (*cpu_memerr) __P((void)); /* Memory subsystem errors */
/* Autoconfiguration */
void (*cpu_conf) __P((struct device *, struct device *, void *));
int (*cpu_clkread) __P((time_t)); /* Read cpu clock time */
void (*cpu_clkwrite) __P((void)); /* Write system time to cpu */
int cpu_vups; /* speed of cpu */
u_char *cpu_intreq; /* Used on some VAXstations */
u_char *cpu_intclr; /* Used on some VAXstations */
u_char *cpu_intmsk; /* Used on some VAXstations */
struct uc_map *cpu_map; /* Map containing important addresses */
void (*cpu_halt) __P((void)); /* Cpu dependent halt call */
void (*cpu_reboot) __P((int)); /* Cpu dependent reboot call */
};
extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */
struct clockframe {
int pc;
int ps;
};
extern struct device *booted_from;
extern int cold;
extern int mastercpu;
extern int bootdev;
#define setsoftnet() mtpr(12,PR_SIRR)
#define setsoftclock() mtpr(8,PR_SIRR)
#define todr() mfpr(PR_TODR)
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
#define need_resched(){ \
want_resched++; \
mtpr(AST_OK,PR_ASTLVL); \
}
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) mtpr(AST_OK,PR_ASTLVL);
extern int want_resched; /* resched() was called */
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the hp300, request an ast to send us
* through trap, marking the proc as needing a profiling tick.
*/
#define need_proftick(p) {(p)->p_flag |= P_OWEUPC; mtpr(AST_OK,PR_ASTLVL); }
/* Some low-level prototypes */
int badaddr __P((caddr_t, int));
void cpu_set_kpc __P((struct proc *, void (*)(struct proc *)));
void cpu_swapin __P((struct proc *));
int hp_getdev __P((int, int, char **));
int ra_getdev __P((int, int, int, char **));
void configure __P((void));
void dumpconf __P((void));
void dumpsys __P((void));
void setroot __P((void));
void setconf __P((void));
void swapconf __P((void));
#ifdef DDB
int kdbrint __P((int));
#endif
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