summaryrefslogtreecommitdiff
path: root/sys/arch/macppc/include/intr.h
blob: 825fde194efec5a484995692cb09725a3fcad961 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
/*	$NetBSD: intr.h,v 1.20 2003/09/03 21:33:32 matt Exp $	*/

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Charles M. Hannum.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _MACPPC_INTR_H_
#define _MACPPC_INTR_H_

#ifdef _KERNEL_OPT
#include "opt_multiprocessor.h"
#endif

/* Interrupt priority `levels'. */
#define	IPL_NONE	9	/* nothing */
#define	IPL_SOFTCLOCK	8	/* timeouts */
#define	IPL_SOFTNET	7	/* protocol stacks */
#define	IPL_BIO		6	/* block I/O */
#define	IPL_NET		5	/* network */
#define	IPL_SOFTSERIAL	4	/* serial */
#define	IPL_TTY		3	/* terminal */
#define	IPL_VM		3	/* memory allocation */
#define	IPL_AUDIO	2	/* audio */
#define	IPL_CLOCK	1	/* clock */
#define	IPL_HIGH	1	/* everything */
#define	IPL_SERIAL	0	/* serial */
#define	NIPL		10

/* Interrupt sharing types. */
#define	IST_NONE	0	/* none */
#define	IST_PULSE	1	/* pulsed */
#define	IST_EDGE	2	/* edge-triggered */
#define	IST_LEVEL	3	/* level-triggered */

#ifndef _LOCORE

/*
 * Interrupt handler chains.  intr_establish() inserts a handler into
 * the list.  The handler is called with its (single) argument.
 */
struct intrhand {
	int	(*ih_fun) __P((void *));
	void	*ih_arg;
	struct	intrhand *ih_next;
	int	ih_level;
	int	ih_irq;
};

void softnet __P((int));
void softserial __P((void));

int splraise __P((int));
int spllower __P((int));
void splx __P((int));
void softintr __P((int));

extern volatile int astpending, tickspending;
extern int imask[];

#define ICU_LEN		64

/* Soft interrupt masks. */
#define SIR_CLOCK	28
#define SIR_NET		29
#define SIR_SERIAL	30
#define SPL_CLOCK	31

/*
 * Hardware interrupt masks
 */
#define splbio()	splraise(imask[IPL_BIO])
#define splnet()	splraise(imask[IPL_NET])
#define spltty()	splraise(imask[IPL_TTY])
#define	splaudio()	splraise(imask[IPL_AUDIO])
#define splclock()	splraise(imask[IPL_CLOCK])
#define splstatclock()	splclock()
#define	splserial()	splraise(imask[IPL_SERIAL])

#define spllpt()	spltty()

/*
 * Software interrupt masks
 *
 * NOTE: splsoftclock() is used by hardclock() to lower the priority from
 * clock to softclock before it calls softclock().
 */
#define	spllowersoftclock() spllower(imask[IPL_SOFTCLOCK])
#define	splsoftclock()	splraise(imask[IPL_SOFTCLOCK])
#define	splsoftnet()	splraise(imask[IPL_SOFTNET])
#define	splsoftserial()	splraise(imask[IPL_SOFTSERIAL])

/*
 * Miscellaneous
 */
#define splvm()		splraise(imask[IPL_VM])
#define	splhigh()	splraise(imask[IPL_HIGH])
#define	splsched()	splhigh()
#define	spllock()	splhigh()
#define	spl0()		spllower(0)

#define	setsoftclock()	softintr(SIR_CLOCK)
#define	setsoftnet()	softintr(SIR_NET)
#define	setsoftserial()	softintr(SIR_SERIAL)

extern long intrcnt[];

#define CNT_IRQ0	0
#define CNT_CLOCK	64
#define CNT_SOFTCLOCK	65
#define CNT_SOFTNET	66
#define CNT_SOFTSERIAL	67

#ifdef MULTIPROCESSOR
#define MACPPC_IPI_HALT		0x0001
#define MACPPC_IPI_FLUSH_FPU	0x0002
#define MACPPC_IPI_FLUSH_VEC	0x0004

struct cpu_info;
void macppc_send_ipi(volatile struct cpu_info *, u_long);
#endif

#define	CLKF_BASEPRI(frame)	((frame)->pri == 0)

#endif /* _LOCORE */

#endif /* _MACPPC_INTR_H_ */