xref: /titanic_50/usr/src/uts/sun4/sys/intreg.h (revision e1c679fa4b0ab8c4bcaa6263974ca0c46e5b027f)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _SYS_INTREG_H
27 #define	_SYS_INTREG_H
28 
29 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/machintreg.h>
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 #define	INO_SIZE	6		/* Interrupt Number Offset bit size */
38 #define	INR_SIZE	(IGN_SIZE + INO_SIZE)	/* Interrupt Number bit size */
39 #define	MAX_IGN		(1 << IGN_SIZE) /* Max Interrupt Group Number size */
40 #define	MAX_INO		(1 << INO_SIZE) /* Max Interrupt Number per group */
41 #define	MAXIVNUM	(MAX_IGN * MAX_INO) /* Max hardware intrs allowed */
42 
43 /*
44  * Interrupt State Machine
45  *	Each interrupt source has a 2-bit state machine which ensures that
46  *	software sees exactly one interrupt packet per assertion of the
47  *	interrupt signal.
48  */
49 #define	ISM_IDLE	0x0	/* not asserted or pending */
50 #define	ISM_TRANSMIT	0x1	/* asserted but is not dispatched */
51 #define	ISM_PENDING	0x2	/* dispatched to a processor or is in transit */
52 
53 /*
54  * Per-Processor Soft Interrupt Register
55  * XXX use %asr when the new assembler supports them
56  */
57 #define	SET_SOFTINT	%asr20		/* ASR 0x14 */
58 #define	CLEAR_SOFTINT	%asr21		/* ASR 0x15 */
59 #define	SOFTINT		%asr22		/* ASR 0x16 */
60 #define	SOFTINT_MASK	0xFFFE		/* <15:1> */
61 #define	TICK_INT_MASK	0x1		/* <0> */
62 #define	STICK_INT_MASK	0x10000		/* <0> */
63 
64 /*
65  * Per-Processor TICK Register and TICK_Compare registers
66  *
67  */
68 #define	TICK_COMPARE	%asr23		/* ASR 0x17 */
69 #define	STICK		%asr24		/* ASR 0x18 */
70 #define	STICK_COMPARE	%asr25		/* ASR 0x19 */
71 #define	TICKINT_DIS_SHFT	0x3f
72 
73 #ifndef _ASM
74 
75 /*
76  * Interrupt Packet (mondo)
77  */
78 struct intr_packet {
79 	uint64_t intr_data0; /* can be an interrupt number or a pc */
80 	uint64_t intr_data1;
81 	uint64_t intr_data2;
82 };
83 
84 /*
85  * Leftover bogus stuff; removed them later
86  */
87 struct cpu_intreg {
88 	uint_t	pend;
89 	uint_t	clr_pend;
90 	uint_t	set_pend;
91 	uchar_t	filler[0x1000 - 0xc];
92 };
93 
94 struct sys_intreg {
95 	uint_t	sys_pend;
96 	uint_t	sys_m;
97 	uint_t	sys_mclear;
98 	uint_t	sys_mset;
99 	uint_t	itr;
100 };
101 
102 #endif  /* _ASM */
103 
104 #ifdef	__cplusplus
105 }
106 #endif
107 
108 #endif	/* _SYS_INTREG_H */
109