xref: /titanic_52/usr/src/uts/sparc/sys/simulate.h (revision 2a9459bdd821c1cf59590a7a9069ac9c591e8a6b)
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 #ifndef	_SYS_SIMULATE_H
28 #define	_SYS_SIMULATE_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 /* SPARC instruction simulator return codes.  */
37 
38 #define	SIMU_SUCCESS	1	/* simulation worked */
39 #define	SIMU_ILLEGAL	2	/* tried to simulate an illegal instuction */
40 #define	SIMU_FAULT	3	/* simulation generated an illegal access */
41 #define	SIMU_DZERO	4	/* simulation generated divide by zero */
42 #define	SIMU_UNALIGN	5	/* simulation generated an unaligned access */
43 #define	SIMU_RETRY	6	/* fixed up instruction, now retry it */
44 
45 
46 /*
47  * Opcode types.
48  */
49 #define	OP_V8_BRANCH	0
50 #define	OP_V8_CALL	1
51 #define	OP_V8_ARITH	2	/* includes control xfer (e.g. JMPL) */
52 #define	OP_V8_LDSTR	3
53 
54 /*
55  * Relevant instruction opcodes.
56  */
57 
58 /* OP_V8_LDSTR  */
59 #define	IOP_V8_LD	0x00
60 #define	IOP_V8_LDA	0x10
61 #define	IOP_V8_LDUBA	0x11
62 #define	IOP_V8_LDUHA	0x12
63 #define	IOP_V8_LDDA	0x13
64 #define	IOP_V8_STA	0x14
65 #define	IOP_V8_STBA	0x15
66 #define	IOP_V8_STHA	0x16
67 #define	IOP_V8_STDA	0x17
68 #define	IOP_V8_LDSBA	0x19
69 #define	IOP_V8_LDSHA	0x1a
70 #define	IOP_V8_LDSTUBA	0x1d
71 #define	IOP_V8_SWAPA	0x1f
72 #define	IOP_V8_LDFSR	0x21
73 #define	IOP_V8_LDQF	0x22
74 #define	IOP_V8_STFSR	0x25
75 #define	IOP_V8_STQF	0x26
76 #define	IOP_V8_LDQFA	0x32
77 #define	IOP_V8_LDDFA	0x33
78 #define	IOP_V8_STQFA	0x36
79 #define	IOP_V8_STDFA	0x37
80 
81 /* OP_V8_ARITH */
82 #define	IOP_V8_ADD	0x00
83 #define	IOP_V8_AND	0x01
84 #define	IOP_V8_OR	0x02
85 #define	IOP_V8_XOR	0x03
86 #define	IOP_V8_SUB	0x04
87 #define	IOP_V8_ANDN	0x05
88 #define	IOP_V8_ORN	0x06
89 #define	IOP_V8_XNOR	0x07
90 #define	IOP_V8_ADDC	0x08
91 #define	IOP_V8_UMUL	0x0a
92 #define	IOP_V8_SMUL	0x0b
93 #define	IOP_V8_SUBC	0x0c
94 #define	IOP_V8_UDIV	0x0e
95 #define	IOP_V8_SDIV	0x0f
96 #define	IOP_V8_ADDcc	0x10
97 #define	IOP_V8_ANDcc	0x11
98 #define	IOP_V8_ORcc	0x12
99 #define	IOP_V8_XORcc	0x13
100 #define	IOP_V8_SUBcc	0x14
101 #define	IOP_V8_ANDNcc	0x15
102 #define	IOP_V8_ORNcc	0x16
103 #define	IOP_V8_XNORcc	0x17
104 #define	IOP_V8_ADDCcc	0x18
105 #define	IOP_V8_UMULcc	0x1a
106 #define	IOP_V8_SMULcc	0x1b
107 #define	IOP_V8_SUBCcc	0x1c
108 #define	IOP_V8_UDIVcc	0x1e
109 #define	IOP_V8_SDIVcc	0x1f
110 #define	IOP_V8_TADDcc	0x20
111 #define	IOP_V8_TSUBcc	0x21
112 #define	IOP_V8_TADDccTV	0x22
113 #define	IOP_V8_TSUBccTV	0x23
114 #define	IOP_V8_MULScc	0x24
115 #define	IOP_V8_SLL	0x25
116 #define	IOP_V8_SRL	0x26
117 #define	IOP_V8_SRA	0x27
118 #define	IOP_V8_RDASR	0x28
119 #define	IOP_V8_POPC	0x2e
120 #define	IOP_V8_WRASR	0x30
121 #define	IOP_V8_FCMP	0x35
122 #define	IOP_V8_JMPL	0x38
123 #define	IOP_V8_RETT	0x39
124 #define	IOP_V8_TCC	0x3a
125 #define	IOP_V8_FLUSH	0x3b
126 #define	IOP_V8_SAVE	0x3c
127 #define	IOP_V8_RESTORE	0x3d
128 
129 /*
130  * Check for a load/store to alternate space. All other ld/st
131  * instructions should have bits 12-5 clear, if the i-bit is 0.
132  */
133 #define	IS_LDST_ALT(x) \
134 	(((x) == IOP_V8_LDA || (x) == IOP_V8_LDDA || \
135 	    (x) == IOP_V8_LDSBA || (x) == IOP_V8_LDSHA || \
136 	    (x) == IOP_V8_LDSTUBA || (x) == IOP_V8_LDUBA || \
137 	    (x) == IOP_V8_LDUHA || (x) == IOP_V8_STA || \
138 	    (x) == IOP_V8_STBA || (x) == IOP_V8_STDA || \
139 	    (x) == IOP_V8_STHA || (x) == IOP_V8_SWAPA) ? 1 : 0)
140 
141 
142 #ifndef _ASM
143 
144 #include <vm/seg_enum.h>
145 
146 extern int32_t fetch_user_instr(caddr_t);
147 extern int simulate_unimp(struct regs *, caddr_t *);
148 extern int simulate_lddstd(struct regs *, caddr_t *);
149 extern int do_unaligned(struct regs *, caddr_t *);
150 extern int calc_memaddr(struct regs *, caddr_t *);
151 extern int is_atomic(struct regs *);
152 extern int instr_size(struct regs *, caddr_t *, enum seg_rw);
153 extern int getreg(struct regs *, uint_t, uint64_t *, caddr_t *);
154 extern int putreg(uint64_t *, struct regs *, uint_t, caddr_t *);
155 extern int extended_asi_size(int asi);
156 
157 #endif /* _ASM */
158 
159 #ifdef __cplusplus
160 }
161 #endif
162 
163 #endif /* _SYS_SIMULATE_H */
164