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/* $OpenBSD: cpu.h,v 1.13 1997/01/24 01:35:40 briggs Exp $ */
/* $NetBSD: cpu.h,v 1.44 1997/01/20 05:08:00 scottr 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.
*/
/*
* Copyright (c) 1992, 1993 BCDL Labs. All rights reserved.
* Allen Briggs, Chris Caputo, Michael Finch, Brad Grantham, Lawrence Kesteloot
* Redistribution of this source code or any part thereof is permitted,
* provided that the following conditions are met:
* 1) Utilized source contains the copyright message above, this list
* of conditions, and the following disclaimer.
* 2) Binary objects containing compiled source reproduce the
* copyright notice above on startup.
*
* CAVEAT: This source code is provided "as-is" by BCDL Labs, and any
* warranties of ANY kind are disclaimed. We don't even claim that it
* won't crash your hard disk. Basically, we want a little credit if
* it works, but we don't want to get mail-bombed if it doesn't.
*/
/*
* from: Utah $Hdr: cpu.h 1.16 91/03/25$
*
* @(#)cpu.h 7.7 (Berkeley) 6/27/91
*/
/*
ALICE
BG -- Sat May 23 23:58:23 EDT 1992
Exported defines and stuff unique to mac68k.
A lot of this stuff is really specific to the m68k, not just the macs,
but there isn't time to do anything about that right now...
*/
#ifndef _CPU_MACHINE_
#define _CPU_MACHINE_
#include <machine/pcb.h>
/*
* Get common m68k 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 */
void cpu_set_kpc __P((struct proc *, void (*)(struct proc *)));
/*
* Arguments to hardclock, softclock and gatherstats
* encapsulate the previous machine state in an opaque
* clockframe; for hp300, use just what the hardware
* leaves on the stack.
*/
struct clockframe {
u_short sr;
u_long pc;
u_short vo;
};
#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
#define CLKF_BASEPRI(framep) (((framep)->sr & PSL_IPL) == 0)
#define CLKF_PC(framep) ((framep)->pc)
#define CLKF_INTR(framep) (0) /* XXX should use PSL_M (see hp300) */
/*
* 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++; aston(); }
/*
* Give a profiling tick to the current process from the softclock
* interrupt. 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, aston() )
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) aston()
#define aston() (astpending++)
int astpending; /* need to trap before returning to user mode */
int want_resched; /* resched() was called */
/*
* simulated software interrupt register
*/
extern volatile u_int8_t ssir;
#define SIR_NET 0x01
#define SIR_CLOCK 0x02
#define SIR_SERIAL 0x04
#define siroff(mask) \
__asm __volatile ( "andb %0,_ssir" : : "ir" (~(mask)));
#define setsoftnet() \
__asm __volatile ( "orb %0,_ssir" : : "i" (SIR_NET))
#define setsoftclock() \
__asm __volatile ( "orb %0,_ssir" : : "i" (SIR_CLOCK))
#define setsoftserial() \
__asm __volatile ( "orb %0,_ssir" : : "i" (SIR_SERIAL))
#define CPU_CONSDEV 1
#define CPU_MAXID 2
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
{ "console_device", CTLTYPE_STRUCT }, \
}
/* physical memory sections */
#define ROMBASE (0x40800000)
#define ROMLEN (0x00200000) /* 2MB should be enough! */
#define ROMMAPSIZE btoc(ROMLEN) /* 32k of page tables. */
#define IIOMAPSIZE btoc(0x00100000)
/* XXX -- Need to do something about superspace.
* Technically, NuBus superspace starts at 0x60000000, but no
* known Macintosh has used any slot lower numbered than 9, and
* the super space is defined as 0xS000 0000 through 0xSFFF FFFF
* where S is the slot number--ranging from 0x9 - 0xE.
*/
#define NBSBASE 0x90000000
#define NBSTOP 0xF0000000
#define NBBASE 0xF9000000 /* NUBUS space */
#define NBTOP 0xFF000000 /* NUBUS space */
#define NBMAPSIZE btoc(NBTOP-NBBASE) /* ~ 96 megs */
#define NBMEMSIZE 0x01000000 /* 16 megs per card */
__BEGIN_DECLS
/* machdep.c */
u_int get_mapping __P((void));
/* locore.s */
void m68881_restore __P((struct fpframe *));
void m68881_save __P((struct fpframe *));
u_int getsfc __P((void));
u_int getdfc __P((void));
void TBIA __P((void));
void TBIAS __P((void));
void TBIS __P((vm_offset_t));
void DCFP __P((vm_offset_t));
void ICPP __P((vm_offset_t));
void DCIU __P((void));
void ICIA __P((void));
void DCFL __P((vm_offset_t));
int suline __P((caddr_t, caddr_t));
void savectx __P((struct pcb *));
void proc_trampoline __P((void));
/* trap.c */
void child_return __P((struct proc *, struct frame));
__END_DECLS
#endif /* _CPU_MACHINE_ */
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