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      1 /*	$NetBSD: cpu.h,v 1.67 2024/01/20 00:15:33 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1988 University of Utah.
      5  * Copyright (c) 1982, 1990, 1993
      6  *	The Regents of the University of California.  All rights reserved.
      7  *
      8  * This code is derived from software contributed to Berkeley by
      9  * the Systems Programming Group of the University of Utah Computer
     10  * Science Department.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
     37  *
     38  *	@(#)cpu.h	8.4 (Berkeley) 1/5/94
     39  */
     40 
     41 #ifndef _X68K_CPU_H_
     42 #define	_X68K_CPU_H_
     43 
     44 #if defined(_KERNEL_OPT)
     45 #include "opt_lockdebug.h"
     46 #endif
     47 
     48 /*
     49  * Get common m68k CPU definitions.
     50  */
     51 #include <m68k/cpu.h>
     52 
     53 #if defined(_KERNEL)
     54 /*
     55  * The rest of this should probably be moved to <machine/x68kcpu.h>
     56  * although some of it could probably be put into generic 68k headers.
     57  */
     58 
     59 extern uint8_t *intiobase;
     60 extern uint8_t *intiolimit;
     61 
     62 /* machdep.c functions */
     63 void	dumpsys(void);
     64 
     65 /* machdep.c functions */
     66 int	badaddr(volatile void*);
     67 int	badbaddr(volatile void*);
     68 
     69 #endif /* _KERNEL */
     70 
     71 /* physical memory sections */
     72 #define INTIOBASE	(0x00C00000)
     73 #define INTIOTOP	(0x01000000)
     74 
     75 /*
     76  * Internal IO space:
     77  *
     78  * Ranges from 0xC00000 to 0x1000000 (IIOMAPSIZE).
     79  *
     80  * Internal IO space is mapped in the kernel from ``IODEVbase'' to
     81  * ``intiolimit'' (defined in locore.s).  Since it is always mapped,
     82  * conversion between physical and kernel virtual addresses is easy.
     83  */
     84 #define	IIOV(pa)	((u_int)(pa) - INTIOBASE + (u_int)intiobase)
     85 #define	IIOP(va)	((u_int)(va) - (u_int)intiobase + INTIOBASE)
     86 #define	IIOPOFF(pa)	((int)(pa)-INTIOBASE)
     87 #define	IIOMAPSIZE	btoc(INTIOTOP-INTIOBASE)	/* 4mb */
     88 
     89 #endif /* _X68K_CPU_H_ */
     90