xref: /openbmc/qemu/tcg/ppc/tcg-target.h (revision 235fe6d0)
1 /*
2  * Tiny Code Generator for QEMU
3  *
4  * Copyright (c) 2008 Fabrice Bellard
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a copy
7  * of this software and associated documentation files (the "Software"), to deal
8  * in the Software without restriction, including without limitation the rights
9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  * copies of the Software, and to permit persons to whom the Software is
11  * furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included in
14  * all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 
25 #ifndef PPC_TCG_TARGET_H
26 #define PPC_TCG_TARGET_H
27 
28 #include "host/cpuinfo.h"
29 
30 #define MAX_CODE_GEN_BUFFER_SIZE  ((size_t)-1)
31 
32 #define TCG_TARGET_NB_REGS 64
33 #define TCG_TARGET_INSN_UNIT_SIZE 4
34 
35 typedef enum {
36     TCG_REG_R0,  TCG_REG_R1,  TCG_REG_R2,  TCG_REG_R3,
37     TCG_REG_R4,  TCG_REG_R5,  TCG_REG_R6,  TCG_REG_R7,
38     TCG_REG_R8,  TCG_REG_R9,  TCG_REG_R10, TCG_REG_R11,
39     TCG_REG_R12, TCG_REG_R13, TCG_REG_R14, TCG_REG_R15,
40     TCG_REG_R16, TCG_REG_R17, TCG_REG_R18, TCG_REG_R19,
41     TCG_REG_R20, TCG_REG_R21, TCG_REG_R22, TCG_REG_R23,
42     TCG_REG_R24, TCG_REG_R25, TCG_REG_R26, TCG_REG_R27,
43     TCG_REG_R28, TCG_REG_R29, TCG_REG_R30, TCG_REG_R31,
44 
45     TCG_REG_V0,  TCG_REG_V1,  TCG_REG_V2,  TCG_REG_V3,
46     TCG_REG_V4,  TCG_REG_V5,  TCG_REG_V6,  TCG_REG_V7,
47     TCG_REG_V8,  TCG_REG_V9,  TCG_REG_V10, TCG_REG_V11,
48     TCG_REG_V12, TCG_REG_V13, TCG_REG_V14, TCG_REG_V15,
49     TCG_REG_V16, TCG_REG_V17, TCG_REG_V18, TCG_REG_V19,
50     TCG_REG_V20, TCG_REG_V21, TCG_REG_V22, TCG_REG_V23,
51     TCG_REG_V24, TCG_REG_V25, TCG_REG_V26, TCG_REG_V27,
52     TCG_REG_V28, TCG_REG_V29, TCG_REG_V30, TCG_REG_V31,
53 
54     TCG_REG_CALL_STACK = TCG_REG_R1,
55     TCG_AREG0 = TCG_REG_R27
56 } TCGReg;
57 
58 typedef enum {
59     tcg_isa_base,
60     tcg_isa_2_06,
61     tcg_isa_2_07,
62     tcg_isa_3_00,
63     tcg_isa_3_10,
64 } TCGPowerISA;
65 
66 #define have_isa_2_06  (cpuinfo & CPUINFO_V2_06)
67 #define have_isa_2_07  (cpuinfo & CPUINFO_V2_07)
68 #define have_isa_3_00  (cpuinfo & CPUINFO_V3_0)
69 #define have_isa_3_10  (cpuinfo & CPUINFO_V3_1)
70 #define have_altivec   (cpuinfo & CPUINFO_ALTIVEC)
71 #define have_vsx       (cpuinfo & CPUINFO_VSX)
72 
73 /* optional instructions automatically implemented */
74 #define TCG_TARGET_HAS_ext8u_i32        0 /* andi */
75 #define TCG_TARGET_HAS_ext16u_i32       0
76 
77 /* optional instructions */
78 #define TCG_TARGET_HAS_div_i32          1
79 #define TCG_TARGET_HAS_rem_i32          have_isa_3_00
80 #define TCG_TARGET_HAS_rot_i32          1
81 #define TCG_TARGET_HAS_ext8s_i32        1
82 #define TCG_TARGET_HAS_ext16s_i32       1
83 #define TCG_TARGET_HAS_bswap16_i32      1
84 #define TCG_TARGET_HAS_bswap32_i32      1
85 #define TCG_TARGET_HAS_not_i32          1
86 #define TCG_TARGET_HAS_neg_i32          1
87 #define TCG_TARGET_HAS_andc_i32         1
88 #define TCG_TARGET_HAS_orc_i32          1
89 #define TCG_TARGET_HAS_eqv_i32          1
90 #define TCG_TARGET_HAS_nand_i32         1
91 #define TCG_TARGET_HAS_nor_i32          1
92 #define TCG_TARGET_HAS_clz_i32          1
93 #define TCG_TARGET_HAS_ctz_i32          have_isa_3_00
94 #define TCG_TARGET_HAS_ctpop_i32        have_isa_2_06
95 #define TCG_TARGET_HAS_deposit_i32      1
96 #define TCG_TARGET_HAS_extract_i32      1
97 #define TCG_TARGET_HAS_sextract_i32     0
98 #define TCG_TARGET_HAS_extract2_i32     0
99 #define TCG_TARGET_HAS_movcond_i32      1
100 #define TCG_TARGET_HAS_negsetcond_i32   1
101 #define TCG_TARGET_HAS_mulu2_i32        0
102 #define TCG_TARGET_HAS_muls2_i32        0
103 #define TCG_TARGET_HAS_muluh_i32        1
104 #define TCG_TARGET_HAS_mulsh_i32        1
105 #define TCG_TARGET_HAS_qemu_st8_i32     0
106 
107 #if TCG_TARGET_REG_BITS == 64
108 #define TCG_TARGET_HAS_add2_i32         0
109 #define TCG_TARGET_HAS_sub2_i32         0
110 #define TCG_TARGET_HAS_extr_i64_i32     0
111 #define TCG_TARGET_HAS_div_i64          1
112 #define TCG_TARGET_HAS_rem_i64          have_isa_3_00
113 #define TCG_TARGET_HAS_rot_i64          1
114 #define TCG_TARGET_HAS_ext8s_i64        1
115 #define TCG_TARGET_HAS_ext16s_i64       1
116 #define TCG_TARGET_HAS_ext32s_i64       1
117 #define TCG_TARGET_HAS_ext8u_i64        0
118 #define TCG_TARGET_HAS_ext16u_i64       0
119 #define TCG_TARGET_HAS_ext32u_i64       0
120 #define TCG_TARGET_HAS_bswap16_i64      1
121 #define TCG_TARGET_HAS_bswap32_i64      1
122 #define TCG_TARGET_HAS_bswap64_i64      1
123 #define TCG_TARGET_HAS_not_i64          1
124 #define TCG_TARGET_HAS_neg_i64          1
125 #define TCG_TARGET_HAS_andc_i64         1
126 #define TCG_TARGET_HAS_orc_i64          1
127 #define TCG_TARGET_HAS_eqv_i64          1
128 #define TCG_TARGET_HAS_nand_i64         1
129 #define TCG_TARGET_HAS_nor_i64          1
130 #define TCG_TARGET_HAS_clz_i64          1
131 #define TCG_TARGET_HAS_ctz_i64          have_isa_3_00
132 #define TCG_TARGET_HAS_ctpop_i64        have_isa_2_06
133 #define TCG_TARGET_HAS_deposit_i64      1
134 #define TCG_TARGET_HAS_extract_i64      1
135 #define TCG_TARGET_HAS_sextract_i64     0
136 #define TCG_TARGET_HAS_extract2_i64     0
137 #define TCG_TARGET_HAS_movcond_i64      1
138 #define TCG_TARGET_HAS_negsetcond_i64   1
139 #define TCG_TARGET_HAS_add2_i64         1
140 #define TCG_TARGET_HAS_sub2_i64         1
141 #define TCG_TARGET_HAS_mulu2_i64        0
142 #define TCG_TARGET_HAS_muls2_i64        0
143 #define TCG_TARGET_HAS_muluh_i64        1
144 #define TCG_TARGET_HAS_mulsh_i64        1
145 #endif
146 
147 #define TCG_TARGET_HAS_qemu_ldst_i128   \
148     (TCG_TARGET_REG_BITS == 64 && have_isa_2_07)
149 
150 /*
151  * While technically Altivec could support V64, it has no 64-bit store
152  * instruction and substituting two 32-bit stores makes the generated
153  * code quite large.
154  */
155 #define TCG_TARGET_HAS_v64              have_vsx
156 #define TCG_TARGET_HAS_v128             have_altivec
157 #define TCG_TARGET_HAS_v256             0
158 
159 #define TCG_TARGET_HAS_andc_vec         1
160 #define TCG_TARGET_HAS_orc_vec          have_isa_2_07
161 #define TCG_TARGET_HAS_nand_vec         have_isa_2_07
162 #define TCG_TARGET_HAS_nor_vec          1
163 #define TCG_TARGET_HAS_eqv_vec          have_isa_2_07
164 #define TCG_TARGET_HAS_not_vec          1
165 #define TCG_TARGET_HAS_neg_vec          have_isa_3_00
166 #define TCG_TARGET_HAS_abs_vec          0
167 #define TCG_TARGET_HAS_roti_vec         0
168 #define TCG_TARGET_HAS_rots_vec         0
169 #define TCG_TARGET_HAS_rotv_vec         1
170 #define TCG_TARGET_HAS_shi_vec          0
171 #define TCG_TARGET_HAS_shs_vec          0
172 #define TCG_TARGET_HAS_shv_vec          1
173 #define TCG_TARGET_HAS_mul_vec          1
174 #define TCG_TARGET_HAS_sat_vec          1
175 #define TCG_TARGET_HAS_minmax_vec       1
176 #define TCG_TARGET_HAS_bitsel_vec       have_vsx
177 #define TCG_TARGET_HAS_cmpsel_vec       0
178 
179 #define TCG_TARGET_DEFAULT_MO (0)
180 #define TCG_TARGET_NEED_LDST_LABELS
181 #define TCG_TARGET_NEED_POOL_LABELS
182 
183 #endif
184