34637b8687
- move m68881_save() and m68881_restore() declarations into <m68k/m68k.h> Briefly tested and no obvious breakage on atari, sun3, and x68k.
186 lines
5.1 KiB
C
186 lines
5.1 KiB
C
/* $NetBSD: cpu.h,v 1.79 2011/05/16 13:22:52 tsutsui Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah $Hdr: cpu.h 1.16 91/03/25$
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*
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* @(#)cpu.h 7.7 (Berkeley) 6/27/91
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*/
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#ifndef _MACHINE_CPU_H_
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#define _MACHINE_CPU_H_
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#if defined(_KERNEL_OPT)
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#include "opt_lockdebug.h"
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#endif
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/*
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* Get common m68k CPU definitions.
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*/
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#include <m68k/cpu.h>
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#if defined(_KERNEL)
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/*
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* Exported definitions unique to amiga/68k cpu support.
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*/
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#define M68K_MMU_MOTOROLA
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extern volatile unsigned int interrupt_depth;
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/*
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* Arguments to hardclock and gatherstats encapsulate the previous
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* machine state in an opaque clockframe. One the hp300, we use
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* what the hardware pushes on an interrupt (frame format 0).
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*/
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struct clockframe {
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u_short sr; /* sr at time of interrupt */
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u_long pc; /* pc at time of interrupt */
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u_short vo; /* vector offset (4-word frame) */
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};
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#define CLKF_USERMODE(framep) (((framep)->sr & PSL_S) == 0)
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#define CLKF_PC(framep) ((framep)->pc)
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#define CLKF_INTR(framep) (interrupt_depth > 1)
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/*
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* Preempt the current process if in interrupt from user mode,
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* or after the current trap/syscall if in system mode.
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*/
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#define cpu_need_resched(ci,flags) {ci->ci_want_resched = 1; setsoftast();}
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/*
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* Give a profiling tick to the current process from the softclock
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* interrupt. On hp300, request an ast to send us through trap(),
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* marking the proc as needing a profiling tick.
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*/
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#define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast())
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#define cpu_need_proftick(l) ((l)->l_pflag |= LP_OWEUPC, setsoftast())
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/*
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* Notify the current process (p) that it has a signal pending,
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* process as soon as possible.
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*/
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#define cpu_signotify(l) setsoftast()
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extern int astpending; /* need trap before returning to user mode */
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#define setsoftast() (astpending = 1)
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/*
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* The rest of this should probably be moved to ../amiga/amigacpu.h,
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* although some of it could probably be put into generic 68k headers.
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*/
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/* values for machineid (happen to be AFF_* settings of AttnFlags) */
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#define AMIGA_68020 (1L<<1)
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#define AMIGA_68030 (1L<<2)
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#define AMIGA_68040 (1L<<3)
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#define AMIGA_68881 (1L<<4)
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#define AMIGA_68882 (1L<<5)
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#define AMIGA_FPU40 (1L<<6)
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#define AMIGA_68060 (1L<<7)
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extern int machineid;
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#endif /* _KERNEL */
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/*
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* CTL_MACHDEP definitions.
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*/
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#define CPU_CONSDEV 1 /* dev_t: console terminal device */
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#define CPU_MAXID 2 /* number of valid machdep ids */
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#ifdef _KERNEL
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/*
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* Prototypes from amiga_init.c
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*/
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void *alloc_z2mem(long);
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/*
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* Prototypes from autoconf.c
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*/
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int is_a600(void);
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int is_a1200(void);
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int is_a3000(void);
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int is_a4000(void);
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#ifdef DRACO
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#define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0)
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#endif
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#ifdef DRACO
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/*
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* Prototypes from kbd.c
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*/
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void drkbdintr(void);
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/*
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* Prototypes from drsc.c
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*/
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void drsc_handler(void);
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#endif
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/*
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* Prototypes from locore.s
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*/
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void clearseg(vm_offset_t);
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void doboot(void) __attribute__((__noreturn__));
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void loadustp(int);
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void physcopyseg(vm_offset_t, vm_offset_t);
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u_int probeva(u_int, u_int);
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/*
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* Prototypes from machdep.c
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*/
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int badaddr(void *);
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int badbaddr(void *);
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void bootsync(void);
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/*
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* Prototypes from pmap.c:
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*/
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void pmap_bootstrap(vm_offset_t, vm_offset_t);
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#endif /* _KERNEL */
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/*
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* Reorder protection when accessing device registers.
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*/
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#define amiga_membarrier()
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/*
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* Finish all bus operations and flush pipelines.
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*/
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#define amiga_cpu_sync() __asm volatile ("nop")
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#endif /* !_MACHINE_CPU_H_ */
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