tcg/arm/tcg-target.h

   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 /* The __ARM_ARCH define is provided by gcc 4.8.  Construct it otherwise.  */
  30 #ifndef __ARM_ARCH
  31 # if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) \
  32      || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) \
  33      || defined(__ARM_ARCH_7EM__)
  34 #  define __ARM_ARCH 7
  35 # elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
  36        || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__) \
  37        || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6T2__)
  38 #  define __ARM_ARCH 6
  39 # elif defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5E__) \
  40        || defined(__ARM_ARCH_5T__) || defined(__ARM_ARCH_5TE__) \
  41        || defined(__ARM_ARCH_5TEJ__)
  42 #  define __ARM_ARCH 5
  43 # else
  44 #  define __ARM_ARCH 4
  45 # endif
  46 #endif
  47
  48 extern int arm_arch;
  49
  50 #if defined(__ARM_ARCH_5T__) \
  51     || defined(__ARM_ARCH_5TE__) || defined(__ARM_ARCH_5TEJ__)
  52 # define use_armv5t_instructions 1
  53 #else
  54 # define use_armv5t_instructions use_armv6_instructions
  55 #endif
  56
  57 #define use_armv6_instructions  (__ARM_ARCH >= 6 || arm_arch >= 6)
  58 #define use_armv7_instructions  (__ARM_ARCH >= 7 || arm_arch >= 7)
  59
  60 #undef TCG_TARGET_STACK_GROWSUP
  61 #define TCG_TARGET_INSN_UNIT_SIZE 4
  62 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 16
  63 #define MAX_CODE_GEN_BUFFER_SIZE  UINT32_MAX
  64
  65 typedef enum {
  66     TCG_REG_R0 = 0,
  67     TCG_REG_R1,
  68     TCG_REG_R2,
  69     TCG_REG_R3,
  70     TCG_REG_R4,
  71     TCG_REG_R5,
  72     TCG_REG_R6,
  73     TCG_REG_R7,
  74     TCG_REG_R8,
  75     TCG_REG_R9,
  76     TCG_REG_R10,
  77     TCG_REG_R11,
  78     TCG_REG_R12,
  79     TCG_REG_R13,
  80     TCG_REG_R14,
  81     TCG_REG_PC,
  82
  83     TCG_REG_Q0,
  84     TCG_REG_Q1,
  85     TCG_REG_Q2,
  86     TCG_REG_Q3,
  87     TCG_REG_Q4,
  88     TCG_REG_Q5,
  89     TCG_REG_Q6,
  90     TCG_REG_Q7,
  91     TCG_REG_Q8,
  92     TCG_REG_Q9,
  93     TCG_REG_Q10,
  94     TCG_REG_Q11,
  95     TCG_REG_Q12,
  96     TCG_REG_Q13,
  97     TCG_REG_Q14,
  98     TCG_REG_Q15,
  99
 100     TCG_AREG0 = TCG_REG_R6,
 101     TCG_REG_CALL_STACK = TCG_REG_R13,
 102 } TCGReg;
 103
 104 #define TCG_TARGET_NB_REGS 32
 105
 106 #ifdef __ARM_ARCH_EXT_IDIV__
 107 #define use_idiv_instructions  1
 108 #else
 109 extern bool use_idiv_instructions;
 110 #endif
 111 #ifdef __ARM_NEON__
 112 #define use_neon_instructions  1
 113 #else
 114 extern bool use_neon_instructions;
 115 #endif
 116
 117 /* used for function call generation */
 118 #define TCG_TARGET_STACK_ALIGN          8
 119 #define TCG_TARGET_CALL_ALIGN_ARGS      1
 120 #define TCG_TARGET_CALL_STACK_OFFSET    0
 121
 122 /* optional instructions */
 123 #define TCG_TARGET_HAS_ext8s_i32        1
 124 #define TCG_TARGET_HAS_ext16s_i32       1
 125 #define TCG_TARGET_HAS_ext8u_i32        0 /* and r0, r1, #0xff */
 126 #define TCG_TARGET_HAS_ext16u_i32       1
 127 #define TCG_TARGET_HAS_bswap16_i32      1
 128 #define TCG_TARGET_HAS_bswap32_i32      1
 129 #define TCG_TARGET_HAS_not_i32          1
 130 #define TCG_TARGET_HAS_neg_i32          1
 131 #define TCG_TARGET_HAS_rot_i32          1
 132 #define TCG_TARGET_HAS_andc_i32         1
 133 #define TCG_TARGET_HAS_orc_i32          0
 134 #define TCG_TARGET_HAS_eqv_i32          0
 135 #define TCG_TARGET_HAS_nand_i32         0
 136 #define TCG_TARGET_HAS_nor_i32          0
 137 #define TCG_TARGET_HAS_clz_i32          use_armv5t_instructions
 138 #define TCG_TARGET_HAS_ctz_i32          use_armv7_instructions
 139 #define TCG_TARGET_HAS_ctpop_i32        0
 140 #define TCG_TARGET_HAS_deposit_i32      use_armv7_instructions
 141 #define TCG_TARGET_HAS_extract_i32      use_armv7_instructions
 142 #define TCG_TARGET_HAS_sextract_i32     use_armv7_instructions
 143 #define TCG_TARGET_HAS_extract2_i32     1
 144 #define TCG_TARGET_HAS_movcond_i32      1
 145 #define TCG_TARGET_HAS_mulu2_i32        1
 146 #define TCG_TARGET_HAS_muls2_i32        1
 147 #define TCG_TARGET_HAS_muluh_i32        0
 148 #define TCG_TARGET_HAS_mulsh_i32        0
 149 #define TCG_TARGET_HAS_div_i32          use_idiv_instructions
 150 #define TCG_TARGET_HAS_rem_i32          0
 151 #define TCG_TARGET_HAS_goto_ptr         1
 152 #define TCG_TARGET_HAS_direct_jump      0
 153 #define TCG_TARGET_HAS_qemu_st8_i32     0
 154
 155 #define TCG_TARGET_HAS_v64              use_neon_instructions
 156 #define TCG_TARGET_HAS_v128             use_neon_instructions
 157 #define TCG_TARGET_HAS_v256             0
 158
 159 #define TCG_TARGET_HAS_andc_vec         1
 160 #define TCG_TARGET_HAS_orc_vec          1
 161 #define TCG_TARGET_HAS_not_vec          1
 162 #define TCG_TARGET_HAS_neg_vec          1
 163 #define TCG_TARGET_HAS_abs_vec          1
 164 #define TCG_TARGET_HAS_roti_vec         0
 165 #define TCG_TARGET_HAS_rots_vec         0
 166 #define TCG_TARGET_HAS_rotv_vec         0
 167 #define TCG_TARGET_HAS_shi_vec          1
 168 #define TCG_TARGET_HAS_shs_vec          0
 169 #define TCG_TARGET_HAS_shv_vec          0
 170 #define TCG_TARGET_HAS_mul_vec          1
 171 #define TCG_TARGET_HAS_sat_vec          1
 172 #define TCG_TARGET_HAS_minmax_vec       1
 173 #define TCG_TARGET_HAS_bitsel_vec       1
 174 #define TCG_TARGET_HAS_cmpsel_vec       0
 175
 176 #define TCG_TARGET_DEFAULT_MO (0)
 177 #define TCG_TARGET_HAS_MEMORY_BSWAP     1
 178
 179 /* not defined -- call should be eliminated at compile time */
 180 void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t);
 181
 182 #ifdef CONFIG_SOFTMMU
 183 #define TCG_TARGET_NEED_LDST_LABELS
 184 #endif
 185 #define TCG_TARGET_NEED_POOL_LABELS
 186
 187 #endif