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/* $OpenBSD: cpu.h,v 1.13 2002/06/12 12:36:13 hugh Exp $ */
/* $NetBSD: cpu.h,v 1.41 1999/10/21 20:01:36 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.
*/
#ifndef _VAX_CPU_H_
#define _VAX_CPU_H_
#ifdef _KERNEL
#include <sys/cdefs.h>
#include <sys/device.h>
#include <machine/mtpr.h>
#include <machine/pcb.h>
#include <machine/uvax.h>
#include <machine/psl.h>
#define enablertclock()
#define cpu_wait(p)
#define cpu_swapout(p)
#define cpu_number() 0
/*
* 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)(void); /* pmap init before mm is on */
int (*cpu_mchk)(caddr_t); /* Machine check handling */
void (*cpu_memerr)(void); /* Memory subsystem errors */
/* Autoconfiguration */
void (*cpu_conf)(void);
int (*cpu_clkread)(time_t); /* Read cpu clock time */
void (*cpu_clkwrite)(void); /* Write system time to cpu */
short cpu_vups; /* speed of cpu */
short cpu_scbsz; /* (estimated) size of system control block */
void (*cpu_halt)(void); /* Cpu dependent halt call */
void (*cpu_reboot)(int); /* Cpu dependent reboot call */
void (*cpu_clrf)(void); /* Clear cold/warm start flags */
void (*cpu_subconf)(struct device *);/*config cpu dep. devs */
};
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 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); }
/*
* This defines the I/O device register space size in pages.
*/
#define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */
struct device;
/* Some low-level prototypes */
int badaddr(caddr_t, int);
void cpu_swapin(struct proc *);
void dumpconf(void);
void dumpsys(void);
void swapconf(void);
void disk_printtype(int, int);
void disk_reallymapin(struct buf *, struct pte *, int, int);
vaddr_t vax_map_physmem(paddr_t, int);
void vax_unmap_physmem(vaddr_t, int);
void ioaccess(vaddr_t, paddr_t, int);
void iounaccess(vaddr_t, int);
void findcpu(void);
#ifdef DDB
int kdbrint(int);
#endif
#endif /* _KERNEL */
#endif /* _VAX_CPU_H_ */
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