1 /* 2 * AArch32 translation, common definitions. 3 * 4 * Copyright (c) 2021 Linaro, Ltd. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef TARGET_ARM_TRANSLATE_A32_H 21 #define TARGET_ARM_TRANSLATE_A32_H 22 23 /* Prototypes for autogenerated disassembler functions */ 24 bool disas_m_nocp(DisasContext *dc, uint32_t insn); 25 bool disas_mve(DisasContext *dc, uint32_t insn); 26 bool disas_vfp(DisasContext *s, uint32_t insn); 27 bool disas_vfp_uncond(DisasContext *s, uint32_t insn); 28 bool disas_neon_dp(DisasContext *s, uint32_t insn); 29 bool disas_neon_ls(DisasContext *s, uint32_t insn); 30 bool disas_neon_shared(DisasContext *s, uint32_t insn); 31 32 void load_reg_var(DisasContext *s, TCGv_i32 var, int reg); 33 void arm_gen_condlabel(DisasContext *s); 34 bool vfp_access_check(DisasContext *s); 35 bool vfp_access_check_m(DisasContext *s, bool skip_context_update); 36 void read_neon_element32(TCGv_i32 dest, int reg, int ele, MemOp memop); 37 void read_neon_element64(TCGv_i64 dest, int reg, int ele, MemOp memop); 38 void write_neon_element32(TCGv_i32 src, int reg, int ele, MemOp memop); 39 void write_neon_element64(TCGv_i64 src, int reg, int ele, MemOp memop); 40 TCGv_i32 add_reg_for_lit(DisasContext *s, int reg, int ofs); 41 void gen_set_cpsr(TCGv_i32 var, uint32_t mask); 42 void gen_set_condexec(DisasContext *s); 43 void gen_update_pc(DisasContext *s, target_long diff); 44 void gen_lookup_tb(DisasContext *s); 45 long vfp_reg_offset(bool dp, unsigned reg); 46 long neon_full_reg_offset(unsigned reg); 47 long neon_element_offset(int reg, int element, MemOp memop); 48 void gen_rev16(TCGv_i32 dest, TCGv_i32 var); 49 void clear_eci_state(DisasContext *s); 50 bool mve_eci_check(DisasContext *s); 51 void mve_update_eci(DisasContext *s); 52 void mve_update_and_store_eci(DisasContext *s); 53 bool mve_skip_vmov(DisasContext *s, int vn, int index, int size); 54 55 static inline TCGv_i32 load_cpu_offset(int offset) 56 { 57 TCGv_i32 tmp = tcg_temp_new_i32(); 58 tcg_gen_ld_i32(tmp, tcg_env, offset); 59 return tmp; 60 } 61 62 /* Load from a 32-bit field to a TCGv_i32 */ 63 #define load_cpu_field(name) \ 64 ({ \ 65 QEMU_BUILD_BUG_ON(sizeof_field(CPUARMState, name) != 4); \ 66 load_cpu_offset(offsetof(CPUARMState, name)); \ 67 }) 68 69 /* Load from the low half of a 64-bit field to a TCGv_i32 */ 70 #define load_cpu_field_low32(name) \ 71 ({ \ 72 QEMU_BUILD_BUG_ON(sizeof_field(CPUARMState, name) != 8); \ 73 load_cpu_offset(offsetoflow32(CPUARMState, name)); \ 74 }) 75 76 void store_cpu_offset(TCGv_i32 var, int offset, int size); 77 78 #define store_cpu_field(val, name) \ 79 ({ \ 80 QEMU_BUILD_BUG_ON(sizeof_field(CPUARMState, name) != 4 \ 81 && sizeof_field(CPUARMState, name) != 1); \ 82 store_cpu_offset(val, offsetof(CPUARMState, name), \ 83 sizeof_field(CPUARMState, name)); \ 84 }) 85 86 /* Store to the low half of a 64-bit field from a TCGv_i32 */ 87 #define store_cpu_field_low32(val, name) \ 88 ({ \ 89 QEMU_BUILD_BUG_ON(sizeof_field(CPUARMState, name) != 8); \ 90 store_cpu_offset(val, offsetoflow32(CPUARMState, name), 4); \ 91 }) 92 93 #define store_cpu_field_constant(val, name) \ 94 store_cpu_field(tcg_constant_i32(val), name) 95 96 /* Create a new temporary and set it to the value of a CPU register. */ 97 static inline TCGv_i32 load_reg(DisasContext *s, int reg) 98 { 99 TCGv_i32 tmp = tcg_temp_new_i32(); 100 load_reg_var(s, tmp, reg); 101 return tmp; 102 } 103 104 void store_reg(DisasContext *s, int reg, TCGv_i32 var); 105 106 void gen_aa32_ld_internal_i32(DisasContext *s, TCGv_i32 val, 107 TCGv_i32 a32, int index, MemOp opc); 108 void gen_aa32_st_internal_i32(DisasContext *s, TCGv_i32 val, 109 TCGv_i32 a32, int index, MemOp opc); 110 void gen_aa32_ld_internal_i64(DisasContext *s, TCGv_i64 val, 111 TCGv_i32 a32, int index, MemOp opc); 112 void gen_aa32_st_internal_i64(DisasContext *s, TCGv_i64 val, 113 TCGv_i32 a32, int index, MemOp opc); 114 void gen_aa32_ld_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32, 115 int index, MemOp opc); 116 void gen_aa32_st_i32(DisasContext *s, TCGv_i32 val, TCGv_i32 a32, 117 int index, MemOp opc); 118 void gen_aa32_ld_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32, 119 int index, MemOp opc); 120 void gen_aa32_st_i64(DisasContext *s, TCGv_i64 val, TCGv_i32 a32, 121 int index, MemOp opc); 122 123 #define DO_GEN_LD(SUFF, OPC) \ 124 static inline void gen_aa32_ld##SUFF(DisasContext *s, TCGv_i32 val, \ 125 TCGv_i32 a32, int index) \ 126 { \ 127 gen_aa32_ld_i32(s, val, a32, index, OPC); \ 128 } 129 130 #define DO_GEN_ST(SUFF, OPC) \ 131 static inline void gen_aa32_st##SUFF(DisasContext *s, TCGv_i32 val, \ 132 TCGv_i32 a32, int index) \ 133 { \ 134 gen_aa32_st_i32(s, val, a32, index, OPC); \ 135 } 136 137 static inline void gen_aa32_ld64(DisasContext *s, TCGv_i64 val, 138 TCGv_i32 a32, int index) 139 { 140 gen_aa32_ld_i64(s, val, a32, index, MO_UQ); 141 } 142 143 static inline void gen_aa32_st64(DisasContext *s, TCGv_i64 val, 144 TCGv_i32 a32, int index) 145 { 146 gen_aa32_st_i64(s, val, a32, index, MO_UQ); 147 } 148 149 DO_GEN_LD(8u, MO_UB) 150 DO_GEN_LD(16u, MO_UW) 151 DO_GEN_LD(32u, MO_UL) 152 DO_GEN_ST(8, MO_UB) 153 DO_GEN_ST(16, MO_UW) 154 DO_GEN_ST(32, MO_UL) 155 156 #undef DO_GEN_LD 157 #undef DO_GEN_ST 158 159 #if defined(CONFIG_USER_ONLY) 160 #define IS_USER(s) 1 161 #else 162 #define IS_USER(s) (s->user) 163 #endif 164 165 /* Set NZCV flags from the high 4 bits of var. */ 166 #define gen_set_nzcv(var) gen_set_cpsr(var, CPSR_NZCV) 167 168 /* Swap low and high halfwords. */ 169 static inline void gen_swap_half(TCGv_i32 dest, TCGv_i32 var) 170 { 171 tcg_gen_rotri_i32(dest, var, 16); 172 } 173 174 #endif 175