NetBSD/sys/arch/vax/include/cpu.h

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/* $NetBSD: cpu.h,v 1.42 2000/03/19 14:56:53 ragge Exp $ */
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/*
* 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.
*/
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#ifndef _VAX_CPU_H_
#define _VAX_CPU_H_
#if defined(_KERNEL) && !defined(_LKM)
#include "opt_multiprocessor.h"
#endif
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#ifdef _KERNEL
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#include <sys/cdefs.h>
#include <sys/device.h>
#include <sys/lock.h>
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#include <machine/mtpr.h>
#include <machine/pcb.h>
#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)
#define cpu_swapout(p)
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/*
* 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 */
int (*cpu_mchk) __P((caddr_t)); /* Machine check handling */
void (*cpu_memerr) __P((void)); /* Memory subsystem errors */
/* Autoconfiguration */
void (*cpu_conf) __P((void));
int (*cpu_clkread) __P((time_t)); /* Read cpu clock time */
void (*cpu_clkwrite) __P((void)); /* Write system time to cpu */
short cpu_vups; /* speed of cpu */
short cpu_scbsz; /* (estimated) size of system control block */
void (*cpu_halt) __P((void)); /* Cpu dependent halt call */
void (*cpu_reboot) __P((int)); /* Cpu dependent reboot call */
void (*cpu_clrf) __P((void)); /* Clear cold/warm start flags */
void (*cpu_subconf) __P((struct device *));/*config cpu dep. devs */
};
extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */
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struct clockframe {
int pc;
int ps;
};
#if defined(MULTIPROCESSOR)
struct cpu_info {
/*
* Public members.
*/
struct proc *ci_curproc; /* current owner of the processor */
struct simplelock ci_slock; /* lock on this data structure */
cpuid_t ci_cpuid; /* our CPU ID */
#if defined(DIAGNOSTIC) || defined(LOCKDEBUG)
u_long ci_spin_locks; /* # of spin locks held */
u_long ci_simple_locks; /* # of simple locks held */
#endif
/*
* Private members.
*/
int ci_want_resched; /* Should change process */
};
/*
* VAX internal CPU numbering is not sequential; therefore have a separate
* function call that returns the cpu_info struct for this CPU.
*
* For the master CPU (or only) this struct is allocated early in startup;
* for other CPUs it is allocated when the CPU is found.
*/
extern int (*vax_cpu_number)(void);
extern struct cpu_info *(*vax_curcpu)(void);
#define cpu_number() (*vax_cpu_number)()
#define curcpu() (*vax_curcpu)()
#define need_resched() {curcpu()->ci_want_resched++; mtpr(AST_OK,PR_ASTLVL); }
#define cpu_boot_secondary_processors()
#else /* MULTIPROCESSOR */
extern int want_resched; /* resched() was called */
#define cpu_number() 0
#define need_resched() { want_resched++; mtpr(AST_OK,PR_ASTLVL); }
#endif /* MULTIPROCESSOR */
extern struct device *booted_from;
extern int mastercpu;
extern int bootdev;
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#define setsoftnet() mtpr(12,PR_SIRR)
#define setsoftclock() mtpr(8,PR_SIRR)
#define todr() mfpr(PR_TODR)
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/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) mtpr(AST_OK,PR_ASTLVL);
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/*
* 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 __P((caddr_t, int));
void cpu_swapin __P((struct proc *));
int hp_getdev __P((int, int, struct device **));
int ra_getdev __P((int, int, int, struct device **));
void dumpconf __P((void));
void dumpsys __P((void));
void swapconf __P((void));
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void disk_printtype __P((int, int));
void disk_reallymapin __P((struct buf *, struct pte *, int, int));
vaddr_t vax_map_physmem __P((paddr_t, int));
void vax_unmap_physmem __P((vaddr_t, int));
void ioaccess __P((vaddr_t, paddr_t, int));
void iounaccess __P((vaddr_t, int));
void findcpu(void);
#ifdef DDB
int kdbrint __P((int));
#endif
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#endif /* _KERNEL */
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#endif /* _VAX_CPU_H_ */