NetBSD/sys/arch/news68k/include/cpu.h

243 lines
7.1 KiB
C

/* $NetBSD: cpu.h,v 1.1 1999/12/09 14:53:10 tsutsui Exp $ */
/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990, 1993
* 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 8.4 (Berkeley) 1/5/94
*/
#ifndef _NEWS68K_CPU_H_
#define _NEWS68K_CPU_H_
/*
* Exported definitions unique to news68k cpu support.
*/
/*
* Get common m68k CPU definitions.
*/
#include <m68k/cpu.h>
/*
* XXX news1700 L2 cache would be corrupted with DC_BE and IC_BE...
* XXX Should these be defined in machine/cpu.h?
*/
#undef CACHE_ON
#undef CACHE_CLR
#undef IC_CLEAR
#undef DC_CLEAR
#define CACHE_ON (DC_WA|DC_CLR|DC_ENABLE|IC_CLR|IC_ENABLE)
#define CACHE_CLR CACHE_ON
#define IC_CLEAR (DC_WA|DC_ENABLE|IC_CLR|IC_ENABLE)
#define DC_CLEAR (DC_WA|DC_CLR|DC_ENABLE|IC_ENABLE)
/*
* Get interrupt glue.
*/
#include <machine/intr.h>
#define M68K_MMU_MOTOROLA
#if defined(news1700)
#define CACHE_HAVE_PAC
#endif
/*
* definitions of cpu-dependent requirements
* referenced in generic code
*/
#define cpu_swapin(p) /* nothing */
#define cpu_wait(p) /* nothing */
#define cpu_swapout(p) /* nothing */
#define cpu_number() 0
/*
* 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.
*/
extern int want_resched; /* resched() was called */
#define need_resched() { want_resched++; aston(); }
/*
* 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; aston(); }
/*
* Notify the current process (p) that it has a signal pending,
* process as soon as possible.
*/
#define signotify(p) aston()
extern int astpending; /* need to trap before returning to user mode */
#define aston() (astpending++)
/*
* 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
#if defined(news1700) && !defined(M68030)
#define M68030
#endif
#endif
#ifdef _KERNEL
extern int machineid;
extern int cpuspeed;
extern char *intiobase, *intiolimit;
extern u_int intiobase_phys, intiotop_phys;
extern u_int extiobase_phys, extiotop_phys;
extern u_int intrcnt[];
extern void (*vectab[]) __P((void));
struct frame;
struct fpframe;
struct pcb;
/* locore.s functions */
void m68881_save __P((struct fpframe *));
void m68881_restore __P((struct fpframe *));
void DCIA __P((void));
void DCIS __P((void));
void DCIU __P((void));
void ICIA __P((void));
void ICPA __P((void));
void PCIA __P((void));
void TBIA __P((void));
void TBIS __P((vaddr_t));
void TBIAS __P((void));
void TBIAU __P((void));
int suline __P((caddr_t, caddr_t));
void savectx __P((struct pcb *));
void switch_exit __P((struct proc *));
void proc_trampoline __P((void));
void loadustp __P((int));
void badtrap __P((void));
void intrhand_vectored __P((void));
int getsr __P((void));
void doboot __P((int))
__attribute__((__noreturn__));
void nmihand __P((struct frame *));
void ecacheon __P((void));
void ecacheoff __P((void));
/* clock.c functions */
#if 0 /* XXX not yet */
void news68k_calibrate_delay __P((void));
#endif
/* machdep.c functions */
int badaddr __P((caddr_t, int));
int badbaddr __P((caddr_t));
/* sys_machdep.c functions */
int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *));
/* vm_machdep.c functions */
void physaccess __P((caddr_t, caddr_t, int, int));
void physunaccess __P((caddr_t, int));
int kvtop __P((caddr_t));
/* trap.c functions */
void child_return __P((void *));
#endif
/* physical memory sections */
#define ROMBASE (0xe0000000)
#define INTIOBASE1700 (0xe0c00000)
#define INTIOTOP1700 (0xe1d00000) /* XXX */
#define EXTIOBASE1700 (0xf0f00000)
#define EXTIOTOP1700 (0xf1000000) /* XXX */
#define MAXADDR (0xfffff000)
/*
* Internal IO space:
*
* Internal IO space is mapped in the kernel from ``intiobase'' to
* ``intiolimit'' (defined in locore.s). Since it is always mapped,
* conversion between physical and kernel virtual addresses is easy.
*/
#define ISIIOVA(va) \
((char *)(va) >= intiobase && (char *)(va) < intiolimit)
#define IIOV(pa) (((u_int)(pa) - intiobase_phys) + (u_int)intiobase)
#define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys)
#define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys)
#endif /* !_NEWS68K_CPU_H_ */