tcg/riscv/tcg-target.h

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2018 SiFive, Inc
   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 RISCV_TCG_TARGET_H
  26 #define RISCV_TCG_TARGET_H
  27
  28 #if __riscv_xlen == 32
  29 # define TCG_TARGET_REG_BITS 32
  30 #elif __riscv_xlen == 64
  31 # define TCG_TARGET_REG_BITS 64
  32 #endif
  33
  34 #define TCG_TARGET_INSN_UNIT_SIZE 4
  35 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 20
  36 #define TCG_TARGET_NB_REGS 32
  37
  38 typedef enum {
  39     TCG_REG_ZERO,
  40     TCG_REG_RA,
  41     TCG_REG_SP,
  42     TCG_REG_GP,
  43     TCG_REG_TP,
  44     TCG_REG_T0,
  45     TCG_REG_T1,
  46     TCG_REG_T2,
  47     TCG_REG_S0,
  48     TCG_REG_S1,
  49     TCG_REG_A0,
  50     TCG_REG_A1,
  51     TCG_REG_A2,
  52     TCG_REG_A3,
  53     TCG_REG_A4,
  54     TCG_REG_A5,
  55     TCG_REG_A6,
  56     TCG_REG_A7,
  57     TCG_REG_S2,
  58     TCG_REG_S3,
  59     TCG_REG_S4,
  60     TCG_REG_S5,
  61     TCG_REG_S6,
  62     TCG_REG_S7,
  63     TCG_REG_S8,
  64     TCG_REG_S9,
  65     TCG_REG_S10,
  66     TCG_REG_S11,
  67     TCG_REG_T3,
  68     TCG_REG_T4,
  69     TCG_REG_T5,
  70     TCG_REG_T6,
  71
  72     /* aliases */
  73     TCG_AREG0          = TCG_REG_S0,
  74     TCG_GUEST_BASE_REG = TCG_REG_S1,
  75     TCG_REG_TMP0       = TCG_REG_T6,
  76     TCG_REG_TMP1       = TCG_REG_T5,
  77     TCG_REG_TMP2       = TCG_REG_T4,
  78 } TCGReg;
  79
  80 /* used for function call generation */
  81 #define TCG_REG_CALL_STACK              TCG_REG_SP
  82 #define TCG_TARGET_STACK_ALIGN          16
  83 #define TCG_TARGET_CALL_ALIGN_ARGS      1
  84 #define TCG_TARGET_CALL_STACK_OFFSET    0
  85
  86 /* optional instructions */
  87 #define TCG_TARGET_HAS_goto_ptr         1
  88 #define TCG_TARGET_HAS_movcond_i32      0
  89 #define TCG_TARGET_HAS_div_i32          1
  90 #define TCG_TARGET_HAS_rem_i32          1
  91 #define TCG_TARGET_HAS_div2_i32         0
  92 #define TCG_TARGET_HAS_rot_i32          0
  93 #define TCG_TARGET_HAS_deposit_i32      0
  94 #define TCG_TARGET_HAS_extract_i32      0
  95 #define TCG_TARGET_HAS_sextract_i32     0
  96 #define TCG_TARGET_HAS_extract2_i32     0
  97 #define TCG_TARGET_HAS_add2_i32         1
  98 #define TCG_TARGET_HAS_sub2_i32         1
  99 #define TCG_TARGET_HAS_mulu2_i32        0
 100 #define TCG_TARGET_HAS_muls2_i32        0
 101 #define TCG_TARGET_HAS_muluh_i32        (TCG_TARGET_REG_BITS == 32)
 102 #define TCG_TARGET_HAS_mulsh_i32        (TCG_TARGET_REG_BITS == 32)
 103 #define TCG_TARGET_HAS_ext8s_i32        1
 104 #define TCG_TARGET_HAS_ext16s_i32       1
 105 #define TCG_TARGET_HAS_ext8u_i32        1
 106 #define TCG_TARGET_HAS_ext16u_i32       1
 107 #define TCG_TARGET_HAS_bswap16_i32      0
 108 #define TCG_TARGET_HAS_bswap32_i32      0
 109 #define TCG_TARGET_HAS_not_i32          1
 110 #define TCG_TARGET_HAS_neg_i32          1
 111 #define TCG_TARGET_HAS_andc_i32         0
 112 #define TCG_TARGET_HAS_orc_i32          0
 113 #define TCG_TARGET_HAS_eqv_i32          0
 114 #define TCG_TARGET_HAS_nand_i32         0
 115 #define TCG_TARGET_HAS_nor_i32          0
 116 #define TCG_TARGET_HAS_clz_i32          0
 117 #define TCG_TARGET_HAS_ctz_i32          0
 118 #define TCG_TARGET_HAS_ctpop_i32        0
 119 #define TCG_TARGET_HAS_direct_jump      0
 120 #define TCG_TARGET_HAS_brcond2          1
 121 #define TCG_TARGET_HAS_setcond2         1
 122
 123 #if TCG_TARGET_REG_BITS == 64
 124 #define TCG_TARGET_HAS_movcond_i64      0
 125 #define TCG_TARGET_HAS_div_i64          1
 126 #define TCG_TARGET_HAS_rem_i64          1
 127 #define TCG_TARGET_HAS_div2_i64         0
 128 #define TCG_TARGET_HAS_rot_i64          0
 129 #define TCG_TARGET_HAS_deposit_i64      0
 130 #define TCG_TARGET_HAS_extract_i64      0
 131 #define TCG_TARGET_HAS_sextract_i64     0
 132 #define TCG_TARGET_HAS_extract2_i64     0
 133 #define TCG_TARGET_HAS_extrl_i64_i32    1
 134 #define TCG_TARGET_HAS_extrh_i64_i32    1
 135 #define TCG_TARGET_HAS_ext8s_i64        1
 136 #define TCG_TARGET_HAS_ext16s_i64       1
 137 #define TCG_TARGET_HAS_ext32s_i64       1
 138 #define TCG_TARGET_HAS_ext8u_i64        1
 139 #define TCG_TARGET_HAS_ext16u_i64       1
 140 #define TCG_TARGET_HAS_ext32u_i64       1
 141 #define TCG_TARGET_HAS_bswap16_i64      0
 142 #define TCG_TARGET_HAS_bswap32_i64      0
 143 #define TCG_TARGET_HAS_bswap64_i64      0
 144 #define TCG_TARGET_HAS_not_i64          1
 145 #define TCG_TARGET_HAS_neg_i64          1
 146 #define TCG_TARGET_HAS_andc_i64         0
 147 #define TCG_TARGET_HAS_orc_i64          0
 148 #define TCG_TARGET_HAS_eqv_i64          0
 149 #define TCG_TARGET_HAS_nand_i64         0
 150 #define TCG_TARGET_HAS_nor_i64          0
 151 #define TCG_TARGET_HAS_clz_i64          0
 152 #define TCG_TARGET_HAS_ctz_i64          0
 153 #define TCG_TARGET_HAS_ctpop_i64        0
 154 #define TCG_TARGET_HAS_add2_i64         1
 155 #define TCG_TARGET_HAS_sub2_i64         1
 156 #define TCG_TARGET_HAS_mulu2_i64        0
 157 #define TCG_TARGET_HAS_muls2_i64        0
 158 #define TCG_TARGET_HAS_muluh_i64        1
 159 #define TCG_TARGET_HAS_mulsh_i64        1
 160 #endif
 161
 162 static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
 163 {
 164     __builtin___clear_cache((char *)start, (char *)stop);
 165 }
 166
 167 /* not defined -- call should be eliminated at compile time */
 168 void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t);
 169
 170 #define TCG_TARGET_DEFAULT_MO (0)
 171
 172 #ifdef CONFIG_SOFTMMU
 173 #define TCG_TARGET_NEED_LDST_LABELS
 174 #endif
 175 #define TCG_TARGET_NEED_POOL_LABELS
 176
 177 #define TCG_TARGET_HAS_MEMORY_BSWAP 0
 178
 179 #endif