1/*	$NetBSD: cpu.h,v 1.68 2011/11/15 12:23:22 tsutsui 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 * Exported definitions unique to atari/68k cpu support.
56 */
57#define	M68K_MMU_MOTOROLA
58
59void	cpu_proc_fork(struct proc *, struct proc *);
60
61/*
62 * Arguments to hardclock and gatherstats encapsulate the previous
63 * machine state in an opaque clockframe.  On the hp300, we use
64 * what the hardware pushes on an interrupt (frame format 0).
65 */
66struct clockframe {
67	u_int	cf_regs[4];	/* d0,d1,a0,a1 (see locore.s)	*/
68	u_short	cf_sr;		/* sr at time of interrupt	*/
69	u_long	cf_pc;		/* pc at time of interrupt	*/
70	u_short	cf_vo;		/* vector offset (4-word frame)	*/
71} __attribute__((packed));
72
73#define	CLKF_USERMODE(framep)	(((framep)->cf_sr & PSL_S) == 0)
74#define	CLKF_PC(framep)		((framep)->cf_pc)
75#if 0
76/* We would like to do it this way... */
77#define	CLKF_INTR(framep)	(((framep)->cf_sr & PSL_M) == 0)
78#else
79/* but until we start using PSL_M, we have to do this instead */
80#define	CLKF_INTR(framep)	(0)	/* XXX */
81#endif
82
83
84/*
85 * Preempt the current process if in interrupt from user mode,
86 * or after the current trap/syscall if in system mode.
87 */
88#define	cpu_need_resched(ci,flags)	{ci->ci_want_resched = 1; setsoftast();}
89
90/*
91 * Give a profiling tick to the current process from the softclock
92 * interrupt.  On hp300, request an ast to send us through trap(),
93 * marking the proc as needing a profiling tick.
94 */
95#define	profile_tick(l, framep)	((l)->l_pflag |= LP_OWEUPC, setsoftast())
96#define	cpu_need_proftick(l)	((l)->l_pflag |= LP_OWEUPC, setsoftast())
97
98/*
99 * Notify the current process (p) that it has a signal pending,
100 * process as soon as possible.
101 */
102#define	cpu_signotify(l)	setsoftast()
103
104#define setsoftast()	(astpending = 1)
105
106extern int	astpending;	/* need trap before returning to user mode */
107
108/*
109 * The rest of this should probably be moved to ../atari/ataricpu.h,
110 * although some of it could probably be put into generic 68k headers.
111 */
112#define	BASEPRI(sr)	((sr & PSL_IPL) == 0)
113#endif /* _KERNEL */
114
115/*
116 * Values for machineid.
117 */
118#define	ATARI_68000	1		/* 68000 CPU			*/
119#define	ATARI_68010	(1<<1)		/* 68010 CPU			*/
120#define ATARI_68020	(1L<<2)		/* 68020 CPU			*/
121#define ATARI_68030	(1L<<3)		/* 68030 CPU			*/
122#define ATARI_68040	(1L<<4)		/* 68040 CPU			*/
123#define ATARI_68060	(1L<<6)		/* 68060 CPU			*/
124#define	ATARI_TT	(1L<<11)	/* This is a TT030		*/
125#define	ATARI_FALCON	(1L<<12)	/*           Falcon		*/
126#define	ATARI_HADES	(1L<<13)	/*           Hades		*/
127#define	ATARI_MILAN	(1L<<14)	/*           Milan		*/
128
129#define	ATARI_CLKBROKEN	(1L<<16)
130
131#define	ATARI_ANYCPU	(ATARI_68000|ATARI_68010|ATARI_68020|ATARI_68030 \
132			|ATARI_68040|ATARI_68060)
133
134#define	ATARI_ANYMACH	(ATARI_TT|ATARI_FALCON|ATARI_HADES|ATARI_MILAN)
135
136#if defined(_KERNEL)
137extern int machineid;
138#endif /* _KERNEL */
139
140/*
141 * CTL_MACHDEP definitions.
142 */
143#define CPU_CONSDEV	1	/* dev_t: console terminal device */
144#define CPU_MAXID	2	/* number of valid machdep ids */
145
146#ifdef _KERNEL
147/*
148 * Prototypes from atari_init.c
149 */
150int	cpu_dump(int (*)(dev_t, daddr_t, void *, size_t), daddr_t *);
151int	cpu_dumpsize(void);
152
153/*
154 * Prototypes from autoconf.c
155 */
156void	config_console(void);
157
158/*
159 * Prototypes from fpu.c
160 */
161const char *fpu_describe(int);
162
163/*
164 * Prototypes from locore.s
165 */
166void	clearseg(paddr_t);
167void	doboot(void);
168void	loadustp(int);
169void	physcopyseg(paddr_t, paddr_t);
170u_int	probeva(u_int, u_int);
171int	suline(void *, void *);
172
173/*
174 * Prototypes from machdep.c:
175 */
176int	badbaddr(void *, int);
177void	consinit(void);
178typedef void (*si_farg)(void *, void *);	/* XXX */
179void	init_sicallback(void);			/* XXX */
180void	add_sicallback(si_farg, void *, void *);
181void	rem_sicallback(si_farg);
182void	dumpsys(void);
183vaddr_t reserve_dumppages(vaddr_t);
184
185
186/*
187 * Prototypes from nvram.c:
188 */
189struct uio;
190int	nvram_uio(struct uio *);
191
192/*
193 * Prototypes from pci_machdep.c
194 */
195void init_pci_bus(void);
196
197#endif /* _KERNEL */
198#endif /* !_MACHINE_CPU_H_ */
199