xref: /openbmc/qemu/tcg/arm/tcg-target.h (revision 03ff4f8d)
1 /*
2  * Tiny Code Generator for QEMU
3  *
4  * Copyright (c) 2008 Fabrice Bellard
5  * Copyright (c) 2008 Andrzej Zaborowski
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 
26 #ifndef ARM_TCG_TARGET_H
27 #define ARM_TCG_TARGET_H
28 
29 extern int arm_arch;
30 
31 #define use_armv7_instructions  (__ARM_ARCH >= 7 || arm_arch >= 7)
32 
33 #undef TCG_TARGET_STACK_GROWSUP
34 #define TCG_TARGET_INSN_UNIT_SIZE 4
35 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 16
36 #define MAX_CODE_GEN_BUFFER_SIZE  UINT32_MAX
37 
38 typedef enum {
39     TCG_REG_R0 = 0,
40     TCG_REG_R1,
41     TCG_REG_R2,
42     TCG_REG_R3,
43     TCG_REG_R4,
44     TCG_REG_R5,
45     TCG_REG_R6,
46     TCG_REG_R7,
47     TCG_REG_R8,
48     TCG_REG_R9,
49     TCG_REG_R10,
50     TCG_REG_R11,
51     TCG_REG_R12,
52     TCG_REG_R13,
53     TCG_REG_R14,
54     TCG_REG_PC,
55 
56     TCG_REG_Q0,
57     TCG_REG_Q1,
58     TCG_REG_Q2,
59     TCG_REG_Q3,
60     TCG_REG_Q4,
61     TCG_REG_Q5,
62     TCG_REG_Q6,
63     TCG_REG_Q7,
64     TCG_REG_Q8,
65     TCG_REG_Q9,
66     TCG_REG_Q10,
67     TCG_REG_Q11,
68     TCG_REG_Q12,
69     TCG_REG_Q13,
70     TCG_REG_Q14,
71     TCG_REG_Q15,
72 
73     TCG_AREG0 = TCG_REG_R6,
74     TCG_REG_CALL_STACK = TCG_REG_R13,
75 } TCGReg;
76 
77 #define TCG_TARGET_NB_REGS 32
78 
79 #ifdef __ARM_ARCH_EXT_IDIV__
80 #define use_idiv_instructions  1
81 #else
82 extern bool use_idiv_instructions;
83 #endif
84 #ifdef __ARM_NEON__
85 #define use_neon_instructions  1
86 #else
87 extern bool use_neon_instructions;
88 #endif
89 
90 /* used for function call generation */
91 #define TCG_TARGET_STACK_ALIGN		8
92 #define TCG_TARGET_CALL_ALIGN_ARGS	1
93 #define TCG_TARGET_CALL_STACK_OFFSET	0
94 
95 /* optional instructions */
96 #define TCG_TARGET_HAS_ext8s_i32        1
97 #define TCG_TARGET_HAS_ext16s_i32       1
98 #define TCG_TARGET_HAS_ext8u_i32        0 /* and r0, r1, #0xff */
99 #define TCG_TARGET_HAS_ext16u_i32       1
100 #define TCG_TARGET_HAS_bswap16_i32      1
101 #define TCG_TARGET_HAS_bswap32_i32      1
102 #define TCG_TARGET_HAS_not_i32          1
103 #define TCG_TARGET_HAS_neg_i32          1
104 #define TCG_TARGET_HAS_rot_i32          1
105 #define TCG_TARGET_HAS_andc_i32         1
106 #define TCG_TARGET_HAS_orc_i32          0
107 #define TCG_TARGET_HAS_eqv_i32          0
108 #define TCG_TARGET_HAS_nand_i32         0
109 #define TCG_TARGET_HAS_nor_i32          0
110 #define TCG_TARGET_HAS_clz_i32          1
111 #define TCG_TARGET_HAS_ctz_i32          use_armv7_instructions
112 #define TCG_TARGET_HAS_ctpop_i32        0
113 #define TCG_TARGET_HAS_deposit_i32      use_armv7_instructions
114 #define TCG_TARGET_HAS_extract_i32      use_armv7_instructions
115 #define TCG_TARGET_HAS_sextract_i32     use_armv7_instructions
116 #define TCG_TARGET_HAS_extract2_i32     1
117 #define TCG_TARGET_HAS_movcond_i32      1
118 #define TCG_TARGET_HAS_mulu2_i32        1
119 #define TCG_TARGET_HAS_muls2_i32        1
120 #define TCG_TARGET_HAS_muluh_i32        0
121 #define TCG_TARGET_HAS_mulsh_i32        0
122 #define TCG_TARGET_HAS_div_i32          use_idiv_instructions
123 #define TCG_TARGET_HAS_rem_i32          0
124 #define TCG_TARGET_HAS_direct_jump      0
125 #define TCG_TARGET_HAS_qemu_st8_i32     0
126 
127 #define TCG_TARGET_HAS_v64              use_neon_instructions
128 #define TCG_TARGET_HAS_v128             use_neon_instructions
129 #define TCG_TARGET_HAS_v256             0
130 
131 #define TCG_TARGET_HAS_andc_vec         1
132 #define TCG_TARGET_HAS_orc_vec          1
133 #define TCG_TARGET_HAS_nand_vec         0
134 #define TCG_TARGET_HAS_nor_vec          0
135 #define TCG_TARGET_HAS_eqv_vec          0
136 #define TCG_TARGET_HAS_not_vec          1
137 #define TCG_TARGET_HAS_neg_vec          1
138 #define TCG_TARGET_HAS_abs_vec          1
139 #define TCG_TARGET_HAS_roti_vec         0
140 #define TCG_TARGET_HAS_rots_vec         0
141 #define TCG_TARGET_HAS_rotv_vec         0
142 #define TCG_TARGET_HAS_shi_vec          1
143 #define TCG_TARGET_HAS_shs_vec          0
144 #define TCG_TARGET_HAS_shv_vec          0
145 #define TCG_TARGET_HAS_mul_vec          1
146 #define TCG_TARGET_HAS_sat_vec          1
147 #define TCG_TARGET_HAS_minmax_vec       1
148 #define TCG_TARGET_HAS_bitsel_vec       1
149 #define TCG_TARGET_HAS_cmpsel_vec       0
150 
151 #define TCG_TARGET_DEFAULT_MO (0)
152 #define TCG_TARGET_HAS_MEMORY_BSWAP     0
153 
154 /* not defined -- call should be eliminated at compile time */
155 void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t);
156 
157 #define TCG_TARGET_NEED_LDST_LABELS
158 #define TCG_TARGET_NEED_POOL_LABELS
159 
160 #endif
161