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/* $OpenBSD: cpu.h,v 1.47 2014/07/11 10:53:07 uebayasi 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 _MACHINE_CPU_H_
#define _MACHINE_CPU_H_
#ifdef _KERNEL
#include <sys/device.h>
#include <sys/evcount.h>
#include <machine/mtpr.h>
#include <machine/pte.h>
#include <machine/pcb.h>
#include <machine/uvax.h>
#include <machine/psl.h>
#include <machine/trap.h>
#include <machine/intr.h>
#include <sys/sched.h>
struct cpu_info {
struct proc *ci_curproc;
struct schedstate_percpu ci_schedstate; /* scheduler state */
u_int32_t ci_randseed;
#ifdef DIAGNOSTIC
int ci_mutex_level;
#endif
#ifdef GPROF
struct gmonparam *ci_gmon;
#endif
};
extern struct cpu_info cpu_info_store;
#define curcpu() (&cpu_info_store)
#define cpu_number() 0
#define CPU_IS_PRIMARY(ci) 1
#define CPU_INFO_ITERATOR int
#define CPU_INFO_FOREACH(cii, ci) \
for (cii = 0, ci = curcpu(); ci != NULL; ci = NULL)
#define CPU_INFO_UNIT(ci) 0
#define MAXCPUS 1
#define cpu_unidle(ci)
#define CPU_BUSY_CYCLE() do {} while (0)
struct clockframe {
int pc;
int ps;
};
/*
* 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_init)(void); /* pmap init before mm is on */
int (*cpu_mchk)(caddr_t); /* Machine check handling */
void (*cpu_memerr)(void); /* Memory subsystem errors */
void (*cpu_conf)(void); /* Autoconfiguration */
int (*cpu_clkread)(struct timespec *, 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_hardclock)(struct clockframe *); /* hardclock handler */
};
extern struct cpu_dep *dep_call; /* Holds pointer to current CPU struct. */
extern struct device *booted_from;
extern int mastercpu;
extern int bootdev;
/*
* Preempt the current process if in interrupt from user mode,
* or after the current trap/syscall if in system mode.
*/
#define need_resched(ci){ \
want_resched++; \
mtpr(AST_OK,PR_ASTLVL); \
}
#define clear_resched(ci) want_resched = 0
/*
* 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 */
/*
* This is used during profiling to integrate system time.
*/
#define PROC_PC(p) (((struct trapframe *)((p)->p_addr->u_pcb.framep))->pc)
#define PROC_STACK(p) (((struct trapframe *)((p)->p_addr->u_pcb.framep))->sp)
/*
* Give a profiling tick to the current process when the user profiling
* buffer pages are invalid. On the vax, request an ast to send us
* through trap, marking the proc as needing a profiling tick.
*/
#define need_proftick(p) mtpr(AST_OK,PR_ASTLVL)
/*
* Temporarily switching to ipl 1 when the kernel is idle allows SIMH
* to recognize the system is idle, and relinquish CPU time as well.
*/
#define cpu_idle_enter() do { /* nothing */ } while (0)
#define cpu_idle_leave() do { /* nothing */ } while (0)
#define cpu_idle_cycle() \
do { \
mtpr(0x01, PR_IPL); \
mtpr(0x00, PR_IPL); \
} while (0)
/*
* This defines the I/O device register space size in pages.
*/
#define IOSPSZ ((64*1024) / VAX_NBPG) /* 64k == 128 pages */
struct device;
extern char cpu_model[100];
/* Some low-level prototypes */
int badaddr(caddr_t, int);
void dumpconf(void);
void dumpsys(void);
void swapconf(void);
void disk_printtype(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 */
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_LED_BLINK 2 /* int: display led patterns */
#define CPU_MAXID 3 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
{ "led_blink", CTLTYPE_INT } \
}
#endif /* _MACHINE_CPU_H_ */
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