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/* $OpenBSD: cpu.h,v 1.20 2002/03/25 19:41:03 niklas Exp $ */
/* $NetBSD: cpu.h,v 1.36 1996/09/11 00:11:42 thorpej Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* 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 by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* from: Utah $Hdr: cpu.h 1.16 91/03/25$
*
* @(#)cpu.h 7.7 (Berkeley) 6/27/91
*/
#ifndef _MACHINE_CPU_H_
#define _MACHINE_CPU_H_
/*
* Exported definitions unique to amiga/68k cpu support.
*/
#include <machine/psl.h>
/*
* Get common m68k CPU definitions.
*/
#include <m68k/cpu.h>
#define M68K_MMU_MOTOROLA
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_wait(p) /* nothing */
#define cpu_swapout(p) /* nothing */
/*
* Arguments to hardclock and gatherstats encapsulate the previous
* machine state in an opaque clockframe. One the hp300, we use
* what the hardware pushes on an interrupt (frame format 0).
*/
struct clockframe {
u_short sr; /* sr at time of interrupt */
u_long pc; /* pc at time of interrupt */
u_short vo; /* vector offset (4-word frame) */
};
#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
#define CLKF_PC(framep) ((framep)->pc)
#if 0
/* We would like to do it this way... */
#define CLKF_INTR(framep) (((framep)->sr & PSL_M) == 0)
#else
/* but until we start using PSL_M, we have to do this instead */
#define CLKF_INTR(framep) (0) /* XXX */
#endif
/*
* 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 = 1; setsoftast();}
/*
* Give a profiling tick to the current process from the softclock
* interrupt. On hp300, request an ast to send us through trap(),
* marking the proc as needing a profiling tick.
*/
#define profile_tick(p, framep) ((p)->p_flag |= P_OWEUPC, setsoftast())
#define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast())
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) setsoftast()
#define setsoftast() (astpending = 1)
int astpending; /* need trap before returning to user mode */
int want_resched; /* resched() was called */
/* include support for software interrupts */
#include <machine/mtpr.h>
/*
* The rest of this should probably be moved to ../amiga/amigacpu.h,
* although some of it could probably be put into generic 68k headers.
*/
/* values for machineid (happen to be AFF_* settings of AttnFlags) */
#define AMIGA_68020 (1L<<1)
#define AMIGA_68030 (1L<<2)
#define AMIGA_68040 (1L<<3)
#define AMIGA_68881 (1L<<4)
#define AMIGA_68882 (1L<<5)
#define AMIGA_FPU40 (1L<<6)
#define AMIGA_68060 (1L<<7)
#ifdef _KERNEL
int machineid;
#endif
/*
* CTL_MACHDEP definitions.
*/
#define CPU_CONSDEV 1 /* dev_t: console terminal device */
#define CPU_MAXID 2 /* number of valid machdep ids */
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
}
#ifdef _KERNEL
/*
* Prototypes from amiga_init.c
*/
void *alloc_z2mem(long);
/*
* Prototypes from autoconf.c
*/
int is_a1200(void);
int is_a3000(void);
int is_a4000(void);
#ifdef DRACO
int is_draco(void);
#endif
/*
* Prototypes from clock.c
*/
u_long clkread(void);
#ifdef DRACO
/*
* Prototypes from kbd.c
*/
void drkbdintr(void);
/*
* Prototypes from drsc.c
*/
void drsc_handler(void);
#endif
/*
* Prototypes from locore.s
*/
struct fpframe;
struct user;
struct pcb;
void clearseg(vm_offset_t);
void doboot(void) __attribute__((__noreturn__));
void loadustp(int);
void m68881_save(struct fpframe *);
void m68881_restore(struct fpframe *);
void physcopyseg(vm_offset_t, vm_offset_t);
u_int probeva(u_int, u_int);
void proc_trampoline(void);
void savectx(struct pcb *);
void switch_exit(struct proc *);
void DCIAS(vm_offset_t);
void DCIA(void);
void DCIS(void);
void DCIU(void);
void ICIA(void);
void ICPA(void);
void PCIA(void);
void TBIA(void);
void TBIS(vm_offset_t);
void TBIAS(void);
void TBIAU(void);
#if defined(M68040) || defined(M68060)
void DCFA(void);
void DCFP(vm_offset_t);
void DCFL(vm_offset_t);
void DCPL(vm_offset_t);
void DCPP(vm_offset_t);
void ICPL(vm_offset_t);
void ICPP(vm_offset_t);
#endif
/*
* Prototypes from machdep.c
*/
int badaddr(caddr_t);
int badbaddr(caddr_t);
void bootsync(void);
void dumpconf(void);
/*
* Prototypes from sys_machdep.c:
*/
int cachectl(int, caddr_t, int);
int dma_cachectl(caddr_t, int);
/*
* Prototypes from vm_machdep.c
*/
int kvtop(caddr_t);
void physaccess(caddr_t, caddr_t, int, int);
void physunaccess(caddr_t, int);
#ifdef GENERIC
/*
* Prototypes from swapgeneric.c:
*/
void setconf(void);
#endif
/*
* Prototypes from pmap.c:
*/
void pmap_bootstrap(vm_offset_t, vm_offset_t);
vm_offset_t pmap_map(vm_offset_t, vm_offset_t, vm_offset_t, int);
#endif /* _KERNEL */
#endif /* !_MACHINE_CPU_H_ */
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