1 | #ifndef morpheo_behavioural_core_multi_execute_loop_execute_loop_multi_execute_unit_execute_unit_load_store_unit_Types_h |
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2 | #define morpheo_behavioural_core_multi_execute_loop_execute_loop_multi_execute_unit_execute_unit_load_store_unit_Types_h |
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3 | |
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4 | /* |
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5 | * $Id$ |
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6 | * |
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7 | * [ Description ] |
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8 | * |
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9 | */ |
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10 | |
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11 | #include "Behavioural/include/Types.h" |
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12 | #include "Common/include/ToString.h" |
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13 | #include "Common/include/FromString.h" |
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14 | #include "Common/include/ErrorMorpheo.h" |
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15 | #include <ostream> |
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16 | |
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17 | namespace morpheo { |
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18 | namespace behavioural { |
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19 | namespace core { |
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20 | namespace multi_execute_loop { |
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21 | namespace execute_loop { |
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22 | namespace multi_execute_unit { |
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23 | namespace execute_unit { |
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24 | namespace load_store_unit { |
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25 | |
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26 | #define DCACHE_REQ_IS_LOAD(x) (x<<1) |
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27 | #define DCACHE_REQ_IS_STORE(x) ((x<<1)|1) |
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28 | |
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29 | #define DCACHE_RSP_IS_LOAD(x) ((x&1)==0) |
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30 | #define DCACHE_RSP_IS_STORE(x) ((x&1)==1) |
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31 | |
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32 | |
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33 | typedef enum |
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34 | { |
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35 | NO_SPECULATIVE_LOAD , //each load wait all previous store before the data cache access |
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36 | SPECULATIVE_LOAD_ACCESS, //each load wait all previous store before the commiting |
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37 | SPECULATIVE_LOAD_COMMIT, //each load commit the result before the end of dependence's check |
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38 | SPECULATIVE_LOAD_BYPASS //each load bypass the result before the end of dependence's check |
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39 | } Tspeculative_load_t; |
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40 | |
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41 | typedef enum |
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42 | { |
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43 | SELECT_STORE_QUEUE, |
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44 | SELECT_LOAD_QUEUE , |
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45 | SELECT_LOAD_QUEUE_SPECULATIVE |
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46 | } Tselect_queue_t; |
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47 | |
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48 | // ---------------------------------------------------------- |
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49 | // Store Queue |
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50 | // ---------------------------------------------------------- |
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51 | |
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52 | typedef enum |
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53 | { |
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54 | STORE_QUEUE_EMPTY //entry is empty |
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55 | ,STORE_QUEUE_NO_VALID_NO_SPECULATIVE //entry is the top of rob, and operation isn't arrive |
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56 | ,STORE_QUEUE_VALID_SPECULATIVE //entry is arrive and wait the top of rob |
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57 | ,STORE_QUEUE_VALID_NO_SPECULATIVE //entry is ok, can be access at a dcache port. |
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58 | ,STORE_QUEUE_COMMIT //entry have access at dcache |
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59 | } Tstore_queue_state_t; |
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60 | |
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61 | class Tstore_queue_entry_t |
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62 | { |
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63 | public : Tstore_queue_state_t _state ; |
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64 | public : Tcontext_t _context_id ; |
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65 | public : Tcontext_t _front_end_id ; |
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66 | public : Tcontext_t _ooo_engine_id ; |
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67 | public : Tpacket_t _packet_id ; |
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68 | public : Toperation_t _operation ; |
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69 | public : Tlsq_ptr_t _load_queue_ptr_write; |
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70 | public : Tdcache_address_t _address ; |
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71 | public : Tgeneral_data_t _wdata ; |
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72 | //public : Tcontrol_t _write_rd ; |
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73 | //public : Tgeneral_address_t _num_reg_rd ; |
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74 | public : Texception_t _exception ; |
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75 | |
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76 | friend std::ostream & operator << (std::ostream& os, const Tstore_queue_entry_t & x) |
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77 | { |
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78 | return os << " * state : " << x._state << std::endl |
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79 | << " * packet : " << toString(x._packet_id) << std::endl |
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80 | << " * context, front_end, ooo_engine_id : " << toString(x._context_id) << " - " << toString(x._front_end_id) << " - " << toString(x._ooo_engine_id) << std::endl |
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81 | << " * operation : " << toString(x._operation) << std::endl |
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82 | << " * load_ptr : " << toString(x._load_queue_ptr_write) << std::endl |
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83 | << " * exception : " << toString(x._exception) << std::endl |
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84 | << std::hex |
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85 | << " * address : " << toString(x._address)<< std::endl |
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86 | << " * wdata : " << toString(x._wdata) << std::endl |
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87 | << std::dec; |
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88 | } |
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89 | }; |
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90 | |
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91 | |
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92 | |
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93 | // ---------------------------------------------------------- |
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94 | // Speculative_Access Queue |
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95 | // ---------------------------------------------------------- |
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96 | |
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97 | typedef enum |
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98 | { |
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99 | SPECULATIVE_ACCESS_QUEUE_EMPTY //entry is empty |
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100 | ,SPECULATIVE_ACCESS_QUEUE_WAIT_CACHE //entry is valid and can access at the dcache |
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101 | ,SPECULATIVE_ACCESS_QUEUE_WAIT_LOAD_QUEUE //entry wait an empty slot in load queue |
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102 | } Tspeculative_access_queue_state_t; |
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103 | |
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104 | class Tspeculative_access_queue_entry_t |
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105 | { |
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106 | public : Tspeculative_access_queue_state_t _state ; |
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107 | public : Tcontext_t _context_id ; |
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108 | public : Tcontext_t _front_end_id ; |
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109 | public : Tcontext_t _ooo_engine_id ; |
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110 | public : Tpacket_t _packet_id ; |
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111 | public : Toperation_t _operation ; |
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112 | public : Tlsq_ptr_t _load_queue_ptr_write ; |
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113 | public : Tlsq_ptr_t _store_queue_ptr_write; |
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114 | public : Tdcache_address_t _address ; |
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115 | public : Tcontrol_t _write_rd ; |
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116 | public : Tgeneral_address_t _num_reg_rd ; |
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117 | public : Texception_t _exception ; |
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118 | |
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119 | friend std::ostream & operator << (std::ostream& os, const Tspeculative_access_queue_entry_t & x) |
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120 | { |
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121 | return os << " * state : " << x._state << std::endl |
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122 | << " * packet : " << toString(x._packet_id) << std::endl |
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123 | << " * context, front_end, ooo_engine_id : " << toString(x._context_id) << " - " << toString(x._front_end_id) << " - " << toString(x._ooo_engine_id) << std::endl |
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124 | << " * operation : " << toString(x._operation) << std::endl |
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125 | << " * load, store ptr_write : " << toString(x._load_queue_ptr_write) << " - " << toString(x._store_queue_ptr_write) << std::endl |
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126 | << " * exception : " << toString(x._exception) << std::endl |
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127 | << std::hex |
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128 | << " * address : " << toString(x._address)<< std::endl |
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129 | << std::dec |
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130 | << " * write_rd, num_reg_rd : " << toString(x._write_rd) << " - " << toString(x._num_reg_rd)<< std::endl; |
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131 | } |
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132 | }; |
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133 | |
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134 | // ---------------------------------------------------------- |
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135 | // Load Queue |
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136 | // ---------------------------------------------------------- |
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137 | |
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138 | // HAVE_DCACHE_RSP MUST_CHECK STD::DECOD_BARRIER |
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139 | // OPERATION_MEMORY_LOAD X X - |
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140 | // OPERATION_MEMORY_LOCK - - - |
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141 | // OPERATION_MEMORY_INVALIDATE - - X |
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142 | // OPERATION_MEMORY_PREFETCH - - - |
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143 | // OPERATION_MEMORY_FLUSH - - X |
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144 | // OPERATION_MEMORY_SYNCHRONIZATION X - X |
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145 | |
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146 | #define have_dcache_rsp(x) (is_operation_memory_load(x) or (x==OPERATION_MEMORY_SYNCHRONIZATION)) |
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147 | #define must_check(x) (is_operation_memory_load(x)) |
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148 | |
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149 | #define MASK_CHECK_BYTE_HIT 0xff // 1111_1111 |
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150 | |
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151 | typedef enum |
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152 | { |
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153 | LOAD_QUEUE_EMPTY //entry is empty |
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154 | ,LOAD_QUEUE_WAIT_CHECK //entry must wait the respons and check dependence with store |
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155 | ,LOAD_QUEUE_WAIT //entry must wait the respons |
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156 | ,LOAD_QUEUE_COMMIT_CHECK //entry must check dependence and can commit speculative |
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157 | ,LOAD_QUEUE_CHECK //entry must check dependence with store |
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158 | ,LOAD_QUEUE_COMMIT //entry must commit the instruction |
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159 | } Tload_queue_state_t; |
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160 | |
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161 | class Tload_queue_entry_t |
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162 | { |
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163 | public : Tload_queue_state_t _state ; |
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164 | public : Tcontext_t _context_id ; |
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165 | public : Tcontext_t _front_end_id ; |
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166 | public : Tcontext_t _ooo_engine_id ; |
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167 | public : Tpacket_t _packet_id ; |
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168 | public : Toperation_t _operation ; |
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169 | public : Tlsq_ptr_t _store_queue_ptr_write; |
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170 | public : Tdcache_address_t _address ; |
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171 | public : Tdcache_address_t _check_hit_byte ; |
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172 | public : Tcontrol_t _check_hit ; |
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173 | public : Tdcache_address_t _shift ; |
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174 | public : Tcontrol_t _is_load_signed ; |
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175 | public : Taccess_t _access_size ; |
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176 | public : Tgeneral_data_t _rdata ; |
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177 | public : Tcontrol_t _write_rd ; |
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178 | public : Tgeneral_address_t _num_reg_rd ; |
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179 | public : Texception_t _exception ; |
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180 | |
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181 | friend std::ostream & operator << (std::ostream& os, const Tload_queue_entry_t & x) |
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182 | { |
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183 | return os << " * state : " << x._state << std::endl |
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184 | << " * packet : " << toString(x._packet_id) << std::endl |
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185 | << " * context, front_end, ooo_engine_id : " << toString(x._context_id) << " - " << toString(x._front_end_id) << " - " << toString(x._ooo_engine_id) << std::endl |
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186 | << " * operation : " << toString(x._operation) << std::endl |
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187 | << " * store_queue_ptr_write : " << toString(x._store_queue_ptr_write) << std::endl |
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188 | << " * exception : " << toString(x._exception) << std::endl |
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189 | << " * check_hit, check_hit_byte : " << toString(x._check_hit) << " - " << toString(x._check_hit_byte) << std::endl |
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190 | << std::hex |
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191 | << " * address : " << toString(x._address)<< std::endl |
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192 | << " * rdata : " << toString(x._rdata) << std::endl |
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193 | << std::dec |
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194 | << " * write_rd, num_reg_rd : " << toString(x._write_rd) << " - " << toString(x._num_reg_rd)<< std::endl; |
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195 | } |
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196 | |
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197 | }; |
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198 | |
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199 | }; // end namespace load_store_unit |
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200 | }; // end namespace execute_unit |
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201 | }; // end namespace multi_execute_unit |
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202 | }; // end namespace execute_loop |
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203 | }; // end namespace multi_execute_loop |
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204 | }; // end namespace core |
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205 | }; // end namespace behavioural |
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206 | |
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207 | template<> inline std::string toString<morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::Tspeculative_load_t>(const morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::Tspeculative_load_t& x) |
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208 | { |
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209 | switch (x) |
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210 | { |
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211 | case morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::NO_SPECULATIVE_LOAD : return "no_speculative_load" ; break; |
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212 | case morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::SPECULATIVE_LOAD_ACCESS : return "speculative_load_access"; break; |
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213 | case morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::SPECULATIVE_LOAD_COMMIT : return "speculative_load_commit"; break; |
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214 | case morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::SPECULATIVE_LOAD_BYPASS : return "speculative_load_bypass"; break; |
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215 | default : return "" ; break; |
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216 | } |
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217 | }; |
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218 | |
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219 | template<> inline morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::Tspeculative_load_t fromString<morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::Tspeculative_load_t>(const std::string& x) |
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220 | { |
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221 | if ( (x.compare("0") == 0) or |
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222 | (x.compare("no_speculative_load") == 0)) |
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223 | return morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::NO_SPECULATIVE_LOAD; |
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224 | if ( (x.compare("1") == 0) or |
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225 | (x.compare("speculative_load_access") == 0)) |
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226 | return morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::SPECULATIVE_LOAD_ACCESS; |
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227 | if ( (x.compare("2") == 0) or |
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228 | (x.compare("speculative_load_commit") == 0)) |
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229 | return morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::SPECULATIVE_LOAD_COMMIT; |
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230 | if ( (x.compare("3") == 0) or |
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231 | (x.compare("speculative_load_bypass") == 0)) |
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232 | return morpheo::behavioural::core::multi_execute_loop::execute_loop::multi_execute_unit::execute_unit::load_store_unit::SPECULATIVE_LOAD_BYPASS; |
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233 | |
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234 | throw (ErrorMorpheo ("<fromString> : Unknow string : \""+x+"\"")); |
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235 | }; |
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236 | |
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237 | }; // end namespace morpheo |
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238 | |
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239 | #endif |
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