xref: /illumos-gate/usr/src/uts/sparc/sys/simulate.h (revision 023e71de)
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 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_SIMULATE_H
27 #define	_SYS_SIMULATE_H
28 
29 #ifdef __cplusplus
30 extern "C" {
31 #endif
32 
33 /* SPARC instruction simulator return codes.  */
34 
35 #define	SIMU_SUCCESS	1	/* simulation worked */
36 #define	SIMU_ILLEGAL	2	/* tried to simulate an illegal instuction */
37 #define	SIMU_FAULT	3	/* simulation generated an illegal access */
38 #define	SIMU_DZERO	4	/* simulation generated divide by zero */
39 #define	SIMU_UNALIGN	5	/* simulation generated an unaligned access */
40 #define	SIMU_RETRY	6	/* fixed up instruction, now retry it */
41 
42 
43 /*
44  * Opcode types.
45  */
46 #define	OP_V8_BRANCH	0
47 #define	OP_V8_CALL	1
48 #define	OP_V8_ARITH	2	/* includes control xfer (e.g. JMPL) */
49 #define	OP_V8_LDSTR	3
50 
51 /*
52  * Relevant instruction opcodes.
53  */
54 
55 /* OP_V8_LDSTR  */
56 #define	IOP_V8_LD	0x00
57 #define	IOP_V8_LDA	0x10
58 #define	IOP_V8_LDUBA	0x11
59 #define	IOP_V8_LDUHA	0x12
60 #define	IOP_V8_LDDA	0x13
61 #define	IOP_V8_STA	0x14
62 #define	IOP_V8_STBA	0x15
63 #define	IOP_V8_STHA	0x16
64 #define	IOP_V8_STDA	0x17
65 #define	IOP_V8_LDSBA	0x19
66 #define	IOP_V8_LDSHA	0x1a
67 #define	IOP_V8_LDSTUBA	0x1d
68 #define	IOP_V8_SWAPA	0x1f
69 #define	IOP_V8_LDFSR	0x21
70 #define	IOP_V8_LDQF	0x22
71 #define	IOP_V8_STFSR	0x25
72 #define	IOP_V8_STQF	0x26
73 #define	IOP_V8_LDQFA	0x32
74 #define	IOP_V8_LDDFA	0x33
75 #define	IOP_V8_STQFA	0x36
76 #define	IOP_V8_STDFA	0x37
77 
78 /* OP_V8_ARITH */
79 #define	IOP_V8_ADD	0x00
80 #define	IOP_V8_AND	0x01
81 #define	IOP_V8_OR	0x02
82 #define	IOP_V8_XOR	0x03
83 #define	IOP_V8_SUB	0x04
84 #define	IOP_V8_ANDN	0x05
85 #define	IOP_V8_ORN	0x06
86 #define	IOP_V8_XNOR	0x07
87 #define	IOP_V8_ADDC	0x08
88 #define	IOP_V8_UMUL	0x0a
89 #define	IOP_V8_SMUL	0x0b
90 #define	IOP_V8_SUBC	0x0c
91 #define	IOP_V8_UDIV	0x0e
92 #define	IOP_V8_SDIV	0x0f
93 #define	IOP_V8_ADDcc	0x10
94 #define	IOP_V8_ANDcc	0x11
95 #define	IOP_V8_ORcc	0x12
96 #define	IOP_V8_XORcc	0x13
97 #define	IOP_V8_SUBcc	0x14
98 #define	IOP_V8_ANDNcc	0x15
99 #define	IOP_V8_ORNcc	0x16
100 #define	IOP_V8_XNORcc	0x17
101 #define	IOP_V8_ADDCcc	0x18
102 #define	IOP_V8_UMULcc	0x1a
103 #define	IOP_V8_SMULcc	0x1b
104 #define	IOP_V8_SUBCcc	0x1c
105 #define	IOP_V8_UDIVcc	0x1e
106 #define	IOP_V8_SDIVcc	0x1f
107 #define	IOP_V8_TADDcc	0x20
108 #define	IOP_V8_TSUBcc	0x21
109 #define	IOP_V8_TADDccTV	0x22
110 #define	IOP_V8_TSUBccTV	0x23
111 #define	IOP_V8_MULScc	0x24
112 #define	IOP_V8_SLL	0x25
113 #define	IOP_V8_SRL	0x26
114 #define	IOP_V8_SRA	0x27
115 #define	IOP_V8_RDASR	0x28
116 #define	IOP_V8_POPC	0x2e
117 #define	IOP_V8_WRASR	0x30
118 #define	IOP_V8_FCMP	0x35
119 #define	IOP_V8_JMPL	0x38
120 #define	IOP_V8_RETT	0x39
121 #define	IOP_V8_TCC	0x3a
122 #define	IOP_V8_FLUSH	0x3b
123 #define	IOP_V8_SAVE	0x3c
124 #define	IOP_V8_RESTORE	0x3d
125 
126 /*
127  * Check for a load/store to alternate space. All other ld/st
128  * instructions should have bits 12-5 clear, if the i-bit is 0.
129  */
130 #define	IS_LDST_ALT(x) \
131 	(((x) == IOP_V8_LDA || (x) == IOP_V8_LDDA || \
132 	    (x) == IOP_V8_LDSBA || (x) == IOP_V8_LDSHA || \
133 	    (x) == IOP_V8_LDSTUBA || (x) == IOP_V8_LDUBA || \
134 	    (x) == IOP_V8_LDUHA || (x) == IOP_V8_STA || \
135 	    (x) == IOP_V8_STBA || (x) == IOP_V8_STDA || \
136 	    (x) == IOP_V8_STHA || (x) == IOP_V8_SWAPA) ? 1 : 0)
137 
138 
139 #ifndef _ASM
140 
141 #include <vm/seg_enum.h>
142 
143 extern int32_t fetch_user_instr(caddr_t);
144 extern int simulate_unimp(struct regs *, caddr_t *);
145 extern int simulate_lddstd(struct regs *, caddr_t *);
146 extern int simulate_rdtick(struct regs *);
147 extern int do_unaligned(struct regs *, caddr_t *);
148 extern int calc_memaddr(struct regs *, caddr_t *);
149 extern int is_atomic(struct regs *);
150 extern int instr_size(struct regs *, caddr_t *, enum seg_rw);
151 extern int getreg(struct regs *, uint_t, uint64_t *, caddr_t *);
152 extern int putreg(uint64_t *, struct regs *, uint_t, caddr_t *);
153 extern int extended_asi_size(int asi);
154 
155 #endif /* _ASM */
156 
157 #ifdef __cplusplus
158 }
159 #endif
160 
161 #endif /* _SYS_SIMULATE_H */
162