xref: /netbsd-src/sys/arch/amiga/include/cpu.h (revision c13a5359d541fd49b4c406f5b12209b1640235a5)
1 /*	$NetBSD: cpu.h,v 1.88 2024/01/20 00:15:30 thorpej Exp $	*/
2 
3 /*
4  * Copyright (c) 1988 University of Utah.
5  * Copyright (c) 1982, 1990 The Regents of the University of California.
6  * 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	7.7 (Berkeley) 6/27/91
39  */
40 
41 #ifndef _MACHINE_CPU_H_
42 #define _MACHINE_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 ../amiga/amigacpu.h,
56  * although some of it could probably be put into generic 68k headers.
57  */
58 
59 /* values for machineid (happen to be AFF_* settings of AttnFlags) */
60 #define AMIGA_68020	(1L<<1)
61 #define AMIGA_68030	(1L<<2)
62 #define AMIGA_68040	(1L<<3)
63 #define AMIGA_68881	(1L<<4)
64 #define AMIGA_68882	(1L<<5)
65 #define	AMIGA_FPU40	(1L<<6)
66 #define AMIGA_68060	(1L<<7)
67 
68 extern int machineid;
69 
70 /*
71  * Prototypes from amiga_init.c
72  */
73 void	*alloc_z2mem(long);
74 
75 /*
76  * Prototypes from autoconf.c
77  */
78 int	is_a600(void);
79 int	is_a1200(void);
80 int	is_a3000(void);
81 int	is_a4000(void);
82 #ifdef DRACO
83 #define	is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0)
84 #endif
85 
86 #ifdef DRACO
87 /*
88  * Prototypes from kbd.c
89  */
90 void	drkbdintr(void);
91 
92 /*
93  * Prototypes from drsc.c
94  */
95 void	drsc_handler(void);
96 #endif
97 
98 /*
99  * Prototypes from locore.s
100  */
101 void	clearseg(vm_offset_t);
102 void	doboot(void) __attribute__((__noreturn__));
103 void	physcopyseg(vm_offset_t, vm_offset_t);
104 u_int	probeva(u_int, u_int);
105 
106 /*
107  * Prototypes from machdep.c
108  */
109 int	badaddr(void *);
110 int	badbaddr(void *);
111 void	bootsync(void);
112 
113 /*
114  * Prototypes from pmap.c:
115  */
116 void	pmap_bootstrap(vm_offset_t, vm_offset_t);
117 
118 #endif /* _KERNEL */
119 
120 /*
121  * Reorder protection when accessing device registers.
122  */
123 #define amiga_membarrier()
124 
125 /*
126  * Finish all bus operations and flush pipelines.
127  */
128 #define amiga_cpu_sync() __asm volatile ("nop")
129 
130 #endif /* !_MACHINE_CPU_H_ */
131