xref: /illumos-gate/usr/src/uts/sun4u/sys/machintreg.h (revision 2a1fd0ff)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 /*
27  * Copyright 2019 Peter Tribble.
28  */
29 
30 #ifndef _SYS_MACHINTREG_H
31 #define	_SYS_MACHINTREG_H
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 /*
38  * Interrupt Receive Data Registers
39  *	ASI_SDB_INTR_R or ASI_INTR_RECEIVE; ASI 0x7F; VA 0x40, 0x50, 0x60
40  */
41 #define	IRDR_0		0x40
42 #define	IRDR_1		0x50
43 #define	IRDR_2		0x60
44 
45 #define	UIII_IRDR_0	0x40
46 #define	UIII_IRDR_1	0x48
47 #define	UIII_IRDR_2	0x50
48 #define	UIII_IRDR_3	0x58
49 #define	UIII_IRDR_4	0x60
50 #define	UIII_IRDR_5	0x68
51 #define	UIII_IRDR_6	0x80
52 #define	UIII_IRDR_7	0x88
53 
54 /*
55  * Interrupt Receive Status Register
56  *	ASI_INTR_RECEIVE_STATUS; ASI 0x49; VA 0x0
57  *
58  *	|---------------------------------------------------|
59  *	|    RESERVED (Read as 0)        | BUSY |   PORTID  |
60  *	|--------------------------------|------|-----------|
61  *	 63                             6    5   4         0
62  *
63  */
64 #define	IRSR_BUSY	0x20	/* set when there's a vector received */
65 #define	IRSR_PID_MASK	0x1F	/* PORTID bit mask <4:0> */
66 
67 /*
68  * Interrupt Dispatch Data Register
69  *	ASI_SDB_INTR_W or ASI_INTR_DISPATCH; ASI 0x77; VA 0x40, 0x50, 0x60
70  */
71 #define	IDDR_0		0x40
72 #define	IDDR_1		0x50
73 #define	IDDR_2		0x60
74 
75 #define	UIII_IDDR_0	0x40
76 #define	UIII_IDDR_1	0x48
77 #define	UIII_IDDR_2	0x50
78 #define	UIII_IDDR_3	0x58
79 #define	UIII_IDDR_4	0x60
80 #define	UIII_IDDR_5	0x68
81 #define	UIII_IDDR_6	0x80
82 #define	UIII_IDDR_7	0x88
83 
84 #if defined(JALAPENO) || defined(SERRANO)
85 /*
86  * Interrupt Dispatch Command Register
87  *	ASI_INTR_DISPATCH or ASI_SDB_INTR_W; ASI 0x77; VA = PORTID<<14|0x70
88  *
89  *	|------------------------------------------------|
90  *	|    0    | PORTID  & BUSY/NACK   |     0x70     |
91  *	|---------|-----------------------|--------------|
92  *	 63     19 18                   14 13            0
93  */
94 #define	IDCR_OFFSET	0x70		/* IDCR VA<13:0> */
95 #define	IDCR_PID_SHIFT	14
96 #define	IDCR_BN_SHIFT	14		/* JBUS only */
97 #define	IDCR_BN_MASK	0x3		/* JBUS only */
98 #else /* (JALAPENO || SERRANO) */
99 /*
100  * Interrupt Dispatch Command Register
101  *	ASI_INTR_DISPATCH or ASI_SDB_INTR_W; ASI 0x77; VA = PORTID<<14|0x70
102  *
103  *	|------------------------------------------------|
104  *	|    0    | BUSY/NACK |  PORTID   |     0x70     |
105  *	|---------|-----------|-----------|--------------|
106  *	 63     29 28       24 23       14 13            0
107  */
108 #define	IDCR_OFFSET	0x70		/* IDCR VA<13:0> */
109 #define	IDCR_PID_SHIFT	14
110 #define	IDCR_BN_SHIFT	24		/* safari only */
111 #endif /* (JALAPENO || SERRANO) */
112 
113 /*
114  * Interrupt Dispatch Status Register
115  *	ASI_INTR_DISPATCH_STATUS; ASI 0x48; VA 0x0
116  *
117  *	|---------------------------------------------------|
118  *	|     RESERVED (Read as 0)          | NACK  | BUSY  |
119  *	|-----------------------------------|-------|-------|
120  *	 63                               2    1        0   |
121  */
122 #define	IDSR_NACK	0x2		/* set if interrupt dispatch failed */
123 #define	IDSR_BUSY	0x1		/* set when there's a dispatch */
124 
125 /*
126  * Safari systems define IDSR as 32 busy/nack pairs
127  */
128 #if defined(JALAPENO) || defined(SERRANO)
129 #define	IDSR_BN_SETS		4
130 #define	CPUID_TO_BN_PAIR(x)	((x) & (IDSR_BN_SETS-1))
131 #else /* (JALAPENO || SERRANO) */
132 #define	IDSR_BN_SETS		32
133 #endif /* (JALAPENO || SERRANO) */
134 #define	IDSR_NACK_BIT(i)	((uint64_t)IDSR_NACK << (2 * (i)))
135 #define	IDSR_BUSY_BIT(i)	((uint64_t)IDSR_BUSY << (2 * (i)))
136 #define	IDSR_NACK_TO_BUSY(n)	((n) >> 1)
137 #define	IDSR_BUSY_TO_NACK(n)	((n) << 1)
138 #define	IDSR_NACK_IDX(bit)	(((bit) - 1) / 2)
139 #define	IDSR_BUSY_IDX(bit)	((bit) / 2)
140 
141 /*
142  * Interrupt Number Register
143  *	Every interrupt source has a register associated with it
144  *
145  *	|---------------------------------------------------|
146  *	|INT_EN |  PORTID  |RESERVED (Read as 0)| INT_NUMBER|
147  *	|       |          |                    | IGN | INO |
148  *	|-------|----------|--------------------|-----|-----|
149  *	|  31    30      26 25                11 10  6 5   0
150  */
151 #define	INR_EN_SHIFT	31
152 #define	INR_PID_SHIFT	26
153 #define	INR_PID_MASK	(IRSR_PID_MASK << (INR_PID_SHIFT))
154 /*
155  * IGN_SIZE can be defined in a platform's makefile. If it is not defined,
156  * use a default of 5.
157  */
158 #ifndef IGN_SIZE
159 #define	IGN_SIZE	5		/* Interrupt Group Number bit size */
160 #endif
161 #define	UPAID_TO_IGN(upaid) (upaid)
162 
163 #define	IR_CPU_CLEAR	0x4		/* clear pending register for cpu */
164 #define	IR_MASK_OFFSET	0x4
165 #define	IR_SET_ITR	0x10
166 #define	IR_SOFT_INT(n)	(0x000010000 << (n))
167 #define	IR_SOFT_INT4	IR_SOFT_INT(4)	/* r/w - software level 4 interrupt */
168 #define	IR_CPU_SOFTINT	0x8		/* set soft interrupt for cpu */
169 #define	IR_CLEAR_OFFSET	0x8
170 
171 
172 #ifdef	__cplusplus
173 }
174 #endif
175 
176 #endif	/* _SYS_MACHINTREG_H */
177