xref: /openbmc/qemu/tcg/loongarch64/tcg-target.h (revision 1aef4480)
1 /*
2  * Tiny Code Generator for QEMU
3  *
4  * Copyright (c) 2021 WANG Xuerui <git@xen0n.name>
5  *
6  * Based on tcg/riscv/tcg-target.h
7  *
8  * Copyright (c) 2018 SiFive, Inc
9  *
10  * Permission is hereby granted, free of charge, to any person obtaining a copy
11  * of this software and associated documentation files (the "Software"), to deal
12  * in the Software without restriction, including without limitation the rights
13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14  * copies of the Software, and to permit persons to whom the Software is
15  * furnished to do so, subject to the following conditions:
16  *
17  * The above copyright notice and this permission notice shall be included in
18  * all copies or substantial portions of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26  * THE SOFTWARE.
27  */
28 
29 #ifndef LOONGARCH_TCG_TARGET_H
30 #define LOONGARCH_TCG_TARGET_H
31 
32 #include "host/cpuinfo.h"
33 
34 #define TCG_TARGET_INSN_UNIT_SIZE 4
35 #define TCG_TARGET_NB_REGS 64
36 
37 #define MAX_CODE_GEN_BUFFER_SIZE  ((size_t)-1)
38 
39 typedef enum {
40     TCG_REG_ZERO,
41     TCG_REG_RA,
42     TCG_REG_TP,
43     TCG_REG_SP,
44     TCG_REG_A0,
45     TCG_REG_A1,
46     TCG_REG_A2,
47     TCG_REG_A3,
48     TCG_REG_A4,
49     TCG_REG_A5,
50     TCG_REG_A6,
51     TCG_REG_A7,
52     TCG_REG_T0,
53     TCG_REG_T1,
54     TCG_REG_T2,
55     TCG_REG_T3,
56     TCG_REG_T4,
57     TCG_REG_T5,
58     TCG_REG_T6,
59     TCG_REG_T7,
60     TCG_REG_T8,
61     TCG_REG_RESERVED,
62     TCG_REG_S9,
63     TCG_REG_S0,
64     TCG_REG_S1,
65     TCG_REG_S2,
66     TCG_REG_S3,
67     TCG_REG_S4,
68     TCG_REG_S5,
69     TCG_REG_S6,
70     TCG_REG_S7,
71     TCG_REG_S8,
72 
73     TCG_REG_V0 = 32, TCG_REG_V1, TCG_REG_V2, TCG_REG_V3,
74     TCG_REG_V4, TCG_REG_V5, TCG_REG_V6, TCG_REG_V7,
75     TCG_REG_V8, TCG_REG_V9, TCG_REG_V10, TCG_REG_V11,
76     TCG_REG_V12, TCG_REG_V13, TCG_REG_V14, TCG_REG_V15,
77     TCG_REG_V16, TCG_REG_V17, TCG_REG_V18, TCG_REG_V19,
78     TCG_REG_V20, TCG_REG_V21, TCG_REG_V22, TCG_REG_V23,
79     TCG_REG_V24, TCG_REG_V25, TCG_REG_V26, TCG_REG_V27,
80     TCG_REG_V28, TCG_REG_V29, TCG_REG_V30, TCG_REG_V31,
81 
82     /* aliases */
83     TCG_AREG0    = TCG_REG_S0,
84     TCG_REG_TMP0 = TCG_REG_T8,
85     TCG_REG_TMP1 = TCG_REG_T7,
86     TCG_REG_TMP2 = TCG_REG_T6,
87     TCG_VEC_TMP0 = TCG_REG_V23,
88 } TCGReg;
89 
90 /* used for function call generation */
91 #define TCG_REG_CALL_STACK              TCG_REG_SP
92 #define TCG_TARGET_STACK_ALIGN          16
93 #define TCG_TARGET_CALL_STACK_OFFSET    0
94 #define TCG_TARGET_CALL_ARG_I32         TCG_CALL_ARG_NORMAL
95 #define TCG_TARGET_CALL_ARG_I64         TCG_CALL_ARG_NORMAL
96 #define TCG_TARGET_CALL_ARG_I128        TCG_CALL_ARG_NORMAL
97 #define TCG_TARGET_CALL_RET_I128        TCG_CALL_RET_NORMAL
98 
99 /* optional instructions */
100 #define TCG_TARGET_HAS_negsetcond_i32   0
101 #define TCG_TARGET_HAS_div_i32          1
102 #define TCG_TARGET_HAS_rem_i32          1
103 #define TCG_TARGET_HAS_div2_i32         0
104 #define TCG_TARGET_HAS_rot_i32          1
105 #define TCG_TARGET_HAS_deposit_i32      1
106 #define TCG_TARGET_HAS_extract_i32      1
107 #define TCG_TARGET_HAS_sextract_i32     0
108 #define TCG_TARGET_HAS_extract2_i32     0
109 #define TCG_TARGET_HAS_add2_i32         0
110 #define TCG_TARGET_HAS_sub2_i32         0
111 #define TCG_TARGET_HAS_mulu2_i32        0
112 #define TCG_TARGET_HAS_muls2_i32        0
113 #define TCG_TARGET_HAS_muluh_i32        1
114 #define TCG_TARGET_HAS_mulsh_i32        1
115 #define TCG_TARGET_HAS_ext8s_i32        1
116 #define TCG_TARGET_HAS_ext16s_i32       1
117 #define TCG_TARGET_HAS_ext8u_i32        1
118 #define TCG_TARGET_HAS_ext16u_i32       1
119 #define TCG_TARGET_HAS_bswap16_i32      1
120 #define TCG_TARGET_HAS_bswap32_i32      1
121 #define TCG_TARGET_HAS_not_i32          1
122 #define TCG_TARGET_HAS_andc_i32         1
123 #define TCG_TARGET_HAS_orc_i32          1
124 #define TCG_TARGET_HAS_eqv_i32          0
125 #define TCG_TARGET_HAS_nand_i32         0
126 #define TCG_TARGET_HAS_nor_i32          1
127 #define TCG_TARGET_HAS_clz_i32          1
128 #define TCG_TARGET_HAS_ctz_i32          1
129 #define TCG_TARGET_HAS_ctpop_i32        0
130 #define TCG_TARGET_HAS_brcond2          0
131 #define TCG_TARGET_HAS_setcond2         0
132 #define TCG_TARGET_HAS_qemu_st8_i32     0
133 
134 /* 64-bit operations */
135 #define TCG_TARGET_HAS_negsetcond_i64   0
136 #define TCG_TARGET_HAS_div_i64          1
137 #define TCG_TARGET_HAS_rem_i64          1
138 #define TCG_TARGET_HAS_div2_i64         0
139 #define TCG_TARGET_HAS_rot_i64          1
140 #define TCG_TARGET_HAS_deposit_i64      1
141 #define TCG_TARGET_HAS_extract_i64      1
142 #define TCG_TARGET_HAS_sextract_i64     0
143 #define TCG_TARGET_HAS_extract2_i64     0
144 #define TCG_TARGET_HAS_extr_i64_i32     1
145 #define TCG_TARGET_HAS_ext8s_i64        1
146 #define TCG_TARGET_HAS_ext16s_i64       1
147 #define TCG_TARGET_HAS_ext32s_i64       1
148 #define TCG_TARGET_HAS_ext8u_i64        1
149 #define TCG_TARGET_HAS_ext16u_i64       1
150 #define TCG_TARGET_HAS_ext32u_i64       1
151 #define TCG_TARGET_HAS_bswap16_i64      1
152 #define TCG_TARGET_HAS_bswap32_i64      1
153 #define TCG_TARGET_HAS_bswap64_i64      1
154 #define TCG_TARGET_HAS_not_i64          1
155 #define TCG_TARGET_HAS_andc_i64         1
156 #define TCG_TARGET_HAS_orc_i64          1
157 #define TCG_TARGET_HAS_eqv_i64          0
158 #define TCG_TARGET_HAS_nand_i64         0
159 #define TCG_TARGET_HAS_nor_i64          1
160 #define TCG_TARGET_HAS_clz_i64          1
161 #define TCG_TARGET_HAS_ctz_i64          1
162 #define TCG_TARGET_HAS_ctpop_i64        0
163 #define TCG_TARGET_HAS_add2_i64         0
164 #define TCG_TARGET_HAS_sub2_i64         0
165 #define TCG_TARGET_HAS_mulu2_i64        0
166 #define TCG_TARGET_HAS_muls2_i64        0
167 #define TCG_TARGET_HAS_muluh_i64        1
168 #define TCG_TARGET_HAS_mulsh_i64        1
169 
170 #define TCG_TARGET_HAS_qemu_ldst_i128   (cpuinfo & CPUINFO_LSX)
171 
172 #define TCG_TARGET_HAS_tst              0
173 
174 #define TCG_TARGET_HAS_v64              (cpuinfo & CPUINFO_LSX)
175 #define TCG_TARGET_HAS_v128             (cpuinfo & CPUINFO_LSX)
176 #define TCG_TARGET_HAS_v256             (cpuinfo & CPUINFO_LASX)
177 
178 #define TCG_TARGET_HAS_not_vec          1
179 #define TCG_TARGET_HAS_neg_vec          1
180 #define TCG_TARGET_HAS_abs_vec          0
181 #define TCG_TARGET_HAS_andc_vec         1
182 #define TCG_TARGET_HAS_orc_vec          1
183 #define TCG_TARGET_HAS_nand_vec         0
184 #define TCG_TARGET_HAS_nor_vec          1
185 #define TCG_TARGET_HAS_eqv_vec          0
186 #define TCG_TARGET_HAS_mul_vec          1
187 #define TCG_TARGET_HAS_shi_vec          1
188 #define TCG_TARGET_HAS_shs_vec          0
189 #define TCG_TARGET_HAS_shv_vec          1
190 #define TCG_TARGET_HAS_roti_vec         1
191 #define TCG_TARGET_HAS_rots_vec         0
192 #define TCG_TARGET_HAS_rotv_vec         1
193 #define TCG_TARGET_HAS_sat_vec          1
194 #define TCG_TARGET_HAS_minmax_vec       1
195 #define TCG_TARGET_HAS_bitsel_vec       1
196 #define TCG_TARGET_HAS_cmpsel_vec       0
197 #define TCG_TARGET_HAS_tst_vec          0
198 
199 #define TCG_TARGET_DEFAULT_MO (0)
200 
201 #define TCG_TARGET_NEED_LDST_LABELS
202 
203 #endif /* LOONGARCH_TCG_TARGET_H */
204