tcg/s390x/tcg-target.h

   1 /*
   2  * Tiny Code Generator for QEMU
   3  *
   4  * Copyright (c) 2009 Ulrich Hecht <uli@suse.de>
   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 S390_TCG_TARGET_H
  26 #define S390_TCG_TARGET_H
  27
  28 #define TCG_TARGET_INSN_UNIT_SIZE 2
  29 #define TCG_TARGET_TLB_DISPLACEMENT_BITS 19
  30
  31 /* We have a +- 4GB range on the branches; leave some slop.  */
  32 #define MAX_CODE_GEN_BUFFER_SIZE  (3 * GiB)
  33
  34 typedef enum TCGReg {
  35     TCG_REG_R0,  TCG_REG_R1,  TCG_REG_R2,  TCG_REG_R3,
  36     TCG_REG_R4,  TCG_REG_R5,  TCG_REG_R6,  TCG_REG_R7,
  37     TCG_REG_R8,  TCG_REG_R9,  TCG_REG_R10, TCG_REG_R11,
  38     TCG_REG_R12, TCG_REG_R13, TCG_REG_R14, TCG_REG_R15,
  39
  40     TCG_REG_V0 = 32, TCG_REG_V1,  TCG_REG_V2,  TCG_REG_V3,
  41     TCG_REG_V4,  TCG_REG_V5,  TCG_REG_V6,  TCG_REG_V7,
  42     TCG_REG_V8,  TCG_REG_V9,  TCG_REG_V10, TCG_REG_V11,
  43     TCG_REG_V12, TCG_REG_V13, TCG_REG_V14, TCG_REG_V15,
  44     TCG_REG_V16, TCG_REG_V17, TCG_REG_V18, TCG_REG_V19,
  45     TCG_REG_V20, TCG_REG_V21, TCG_REG_V22, TCG_REG_V23,
  46     TCG_REG_V24, TCG_REG_V25, TCG_REG_V26, TCG_REG_V27,
  47     TCG_REG_V28, TCG_REG_V29, TCG_REG_V30, TCG_REG_V31,
  48
  49     TCG_AREG0 = TCG_REG_R10,
  50     TCG_REG_CALL_STACK = TCG_REG_R15
  51 } TCGReg;
  52
  53 #define TCG_TARGET_NB_REGS 64
  54
  55 /* A list of relevant facilities used by this translator.  Some of these
  56    are required for proper operation, and these are checked at startup.  */
  57
  58 #define FACILITY_ZARCH_ACTIVE         2
  59 #define FACILITY_LONG_DISP            18
  60 #define FACILITY_EXT_IMM              21
  61 #define FACILITY_GEN_INST_EXT         34
  62 #define FACILITY_LOAD_ON_COND         45
  63 #define FACILITY_FAST_BCR_SER         FACILITY_LOAD_ON_COND
  64 #define FACILITY_DISTINCT_OPS         FACILITY_LOAD_ON_COND
  65 #define FACILITY_LOAD_ON_COND2        53
  66 #define FACILITY_VECTOR               129
  67 #define FACILITY_VECTOR_ENH1          135
  68
  69 extern uint64_t s390_facilities[3];
  70
  71 #define HAVE_FACILITY(X) \
  72     ((s390_facilities[FACILITY_##X / 64] >> (63 - FACILITY_##X % 64)) & 1)
  73
  74 /* optional instructions */
  75 #define TCG_TARGET_HAS_div2_i32       1
  76 #define TCG_TARGET_HAS_rot_i32        1
  77 #define TCG_TARGET_HAS_ext8s_i32      1
  78 #define TCG_TARGET_HAS_ext16s_i32     1
  79 #define TCG_TARGET_HAS_ext8u_i32      1
  80 #define TCG_TARGET_HAS_ext16u_i32     1
  81 #define TCG_TARGET_HAS_bswap16_i32    1
  82 #define TCG_TARGET_HAS_bswap32_i32    1
  83 #define TCG_TARGET_HAS_not_i32        0
  84 #define TCG_TARGET_HAS_neg_i32        1
  85 #define TCG_TARGET_HAS_andc_i32       0
  86 #define TCG_TARGET_HAS_orc_i32        0
  87 #define TCG_TARGET_HAS_eqv_i32        0
  88 #define TCG_TARGET_HAS_nand_i32       0
  89 #define TCG_TARGET_HAS_nor_i32        0
  90 #define TCG_TARGET_HAS_clz_i32        0
  91 #define TCG_TARGET_HAS_ctz_i32        0
  92 #define TCG_TARGET_HAS_ctpop_i32      0
  93 #define TCG_TARGET_HAS_deposit_i32    HAVE_FACILITY(GEN_INST_EXT)
  94 #define TCG_TARGET_HAS_extract_i32    HAVE_FACILITY(GEN_INST_EXT)
  95 #define TCG_TARGET_HAS_sextract_i32   0
  96 #define TCG_TARGET_HAS_extract2_i32   0
  97 #define TCG_TARGET_HAS_movcond_i32    1
  98 #define TCG_TARGET_HAS_add2_i32       1
  99 #define TCG_TARGET_HAS_sub2_i32       1
 100 #define TCG_TARGET_HAS_mulu2_i32      0
 101 #define TCG_TARGET_HAS_muls2_i32      0
 102 #define TCG_TARGET_HAS_muluh_i32      0
 103 #define TCG_TARGET_HAS_mulsh_i32      0
 104 #define TCG_TARGET_HAS_extrl_i64_i32  0
 105 #define TCG_TARGET_HAS_extrh_i64_i32  0
 106 #define TCG_TARGET_HAS_direct_jump    HAVE_FACILITY(GEN_INST_EXT)
 107 #define TCG_TARGET_HAS_qemu_st8_i32   0
 108
 109 #define TCG_TARGET_HAS_div2_i64       1
 110 #define TCG_TARGET_HAS_rot_i64        1
 111 #define TCG_TARGET_HAS_ext8s_i64      1
 112 #define TCG_TARGET_HAS_ext16s_i64     1
 113 #define TCG_TARGET_HAS_ext32s_i64     1
 114 #define TCG_TARGET_HAS_ext8u_i64      1
 115 #define TCG_TARGET_HAS_ext16u_i64     1
 116 #define TCG_TARGET_HAS_ext32u_i64     1
 117 #define TCG_TARGET_HAS_bswap16_i64    1
 118 #define TCG_TARGET_HAS_bswap32_i64    1
 119 #define TCG_TARGET_HAS_bswap64_i64    1
 120 #define TCG_TARGET_HAS_not_i64        0
 121 #define TCG_TARGET_HAS_neg_i64        1
 122 #define TCG_TARGET_HAS_andc_i64       0
 123 #define TCG_TARGET_HAS_orc_i64        0
 124 #define TCG_TARGET_HAS_eqv_i64        0
 125 #define TCG_TARGET_HAS_nand_i64       0
 126 #define TCG_TARGET_HAS_nor_i64        0
 127 #define TCG_TARGET_HAS_clz_i64        HAVE_FACILITY(EXT_IMM)
 128 #define TCG_TARGET_HAS_ctz_i64        0
 129 #define TCG_TARGET_HAS_ctpop_i64      0
 130 #define TCG_TARGET_HAS_deposit_i64    HAVE_FACILITY(GEN_INST_EXT)
 131 #define TCG_TARGET_HAS_extract_i64    HAVE_FACILITY(GEN_INST_EXT)
 132 #define TCG_TARGET_HAS_sextract_i64   0
 133 #define TCG_TARGET_HAS_extract2_i64   0
 134 #define TCG_TARGET_HAS_movcond_i64    1
 135 #define TCG_TARGET_HAS_add2_i64       1
 136 #define TCG_TARGET_HAS_sub2_i64       1
 137 #define TCG_TARGET_HAS_mulu2_i64      1
 138 #define TCG_TARGET_HAS_muls2_i64      0
 139 #define TCG_TARGET_HAS_muluh_i64      0
 140 #define TCG_TARGET_HAS_mulsh_i64      0
 141
 142 #define TCG_TARGET_HAS_v64            HAVE_FACILITY(VECTOR)
 143 #define TCG_TARGET_HAS_v128           HAVE_FACILITY(VECTOR)
 144 #define TCG_TARGET_HAS_v256           0
 145
 146 #define TCG_TARGET_HAS_andc_vec       1
 147 #define TCG_TARGET_HAS_orc_vec        HAVE_FACILITY(VECTOR_ENH1)
 148 #define TCG_TARGET_HAS_not_vec        1
 149 #define TCG_TARGET_HAS_neg_vec        1
 150 #define TCG_TARGET_HAS_abs_vec        1
 151 #define TCG_TARGET_HAS_roti_vec       1
 152 #define TCG_TARGET_HAS_rots_vec       1
 153 #define TCG_TARGET_HAS_rotv_vec       1
 154 #define TCG_TARGET_HAS_shi_vec        1
 155 #define TCG_TARGET_HAS_shs_vec        1
 156 #define TCG_TARGET_HAS_shv_vec        1
 157 #define TCG_TARGET_HAS_mul_vec        1
 158 #define TCG_TARGET_HAS_sat_vec        0
 159 #define TCG_TARGET_HAS_minmax_vec     1
 160 #define TCG_TARGET_HAS_bitsel_vec     1
 161 #define TCG_TARGET_HAS_cmpsel_vec     0
 162
 163 /* used for function call generation */
 164 #define TCG_TARGET_STACK_ALIGN          8
 165 #define TCG_TARGET_CALL_STACK_OFFSET    160
 166
 167 #define TCG_TARGET_EXTEND_ARGS 1
 168 #define TCG_TARGET_HAS_MEMORY_BSWAP   1
 169
 170 #define TCG_TARGET_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
 171
 172 static inline void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_rx,
 173                                             uintptr_t jmp_rw, uintptr_t addr)
 174 {
 175     /* patch the branch destination */
 176     intptr_t disp = addr - (jmp_rx - 2);
 177     qatomic_set((int32_t *)jmp_rw, disp / 2);
 178     /* no need to flush icache explicitly */
 179 }
 180
 181 #ifdef CONFIG_SOFTMMU
 182 #define TCG_TARGET_NEED_LDST_LABELS
 183 #endif
 184 #define TCG_TARGET_NEED_POOL_LABELS
 185
 186 #endif