147 lines
4.8 KiB
C
147 lines
4.8 KiB
C
/* $NetBSD: m68k.h,v 1.22 2012/02/19 21:06:13 rmind Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. 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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* from: @(#)cpu.h 8.4 (Berkeley) 1/5/94
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*/
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#ifndef _M68K_M68K_H_
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#define _M68K_M68K_H_
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/*
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* Declarations for things exported by sources in this directory,
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* or required by sources in here and not declared elsewhere.
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*
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* These declarations generally do NOT belong in <machine/cpu.h>,
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* because that defines the interface between the common code and
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* the machine-dependent code, whereas this defines the interface
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* between the shared m68k code and the machine-dependent code.
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*
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* The MMU stuff is exported separately so it can be used just
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* where it is really needed. Same for function codes, etc.
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*/
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#ifdef _KERNEL
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/*
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* All m68k ports must provide these globals.
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*/
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extern int cputype; /* CPU on this host */
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extern int ectype; /* external cache on this host */
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extern int fputype; /* FPU on this host */
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extern int mmutype; /* MMU on this host */
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#endif /* _KERNEL */
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/* values for cputype */
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#define CPU_68010 -1 /* 68010 */
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#define CPU_68020 0 /* 68020 */
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#define CPU_68030 1 /* 68030 */
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#define CPU_68040 2 /* 68040 */
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#define CPU_68060 3 /* 68060 */
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/* values for ectype */
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#define EC_PHYS -1 /* external physical address cache */
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#define EC_NONE 0 /* no external cache */
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#define EC_VIRT 1 /* external virtual address cache */
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/* values for fputype */
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#define FPU_NONE 0 /* no FPU */
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#define FPU_68881 1 /* 68881 FPU */
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#define FPU_68882 2 /* 68882 FPU */
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#define FPU_68040 3 /* 68040 on-chip FPU */
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#define FPU_68060 4 /* 68060 on-chip FPU */
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#define FPU_UNKNOWN 5 /* placeholder; unknown FPU */
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/* values for mmutype (assigned for quick testing) */
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#define MMU_68060 -3 /* 68060 on-chip MMU */
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#define MMU_68040 -2 /* 68040 on-chip MMU */
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#define MMU_68030 -1 /* 68030 on-chip subset of 68851 */
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#define MMU_HP 0 /* HP proprietary */
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#define MMU_68851 1 /* Motorola 68851 */
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#define MMU_SUN 2 /* Sun MMU */
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#ifdef _KERNEL
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struct pcb;
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struct trapframe;
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struct fpframe;
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/* copypage.s */
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void copypage040(void *fromaddr, void *toaddr);
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void copypage(void *fromaddr, void *toaddr);
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void zeropage(void *addr);
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/* support.s */
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int getdfc(void);
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int getsfc(void);
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/* switch_subr.s */
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void lwp_trampoline(void);
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void m68881_save(struct fpframe *);
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void m68881_restore(struct fpframe *);
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void savectx(struct pcb *);
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/* w16copy.s */
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void w16zero(void *, u_int);
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void w16copy(const void *, void *, u_int);
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/* fpu.c */
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int fpu_probe(void);
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#ifdef MAPPEDCOPY
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/* mappedcopy.c */
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int mappedcopyin(void *fromp, void *top, size_t count);
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int mappedcopyout(void *fromp, void *top, size_t count);
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extern u_int mappedcopysize;
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#endif /* MAPPEDCOPY */
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/* regdump.c */
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void regdump(struct trapframe *, int);
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/* sys_machdep.c */
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int cachectl1(u_long, vaddr_t, size_t, struct proc *);
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int dma_cachectl(void *, int);
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/* vm_machdep.c */
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int kvtop(void *);
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void physaccess(void *, void *, int, int);
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void physunaccess(void *, int);
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/* m68k_machdep.c */
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bool ucas_ras_check(struct trapframe *);
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#endif /* _KERNEL */
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#endif /* _M68K_M68K_H_ */
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