1 | #ifdef SYSTEMC |
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2 | /* |
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3 | * $Id: Commit_unit_genMoore.cpp 100 2009-01-08 13:06:27Z rosiere $ |
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4 | * |
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5 | * [ Description ] |
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6 | * |
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7 | */ |
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8 | |
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9 | #include "Behavioural/Core/Multi_OOO_Engine/OOO_Engine/Commit_unit/include/Commit_unit.h" |
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10 | |
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11 | namespace morpheo { |
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12 | namespace behavioural { |
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13 | namespace core { |
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14 | namespace multi_ooo_engine { |
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15 | namespace ooo_engine { |
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16 | namespace commit_unit { |
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17 | |
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18 | |
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19 | #undef FUNCTION |
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20 | #define FUNCTION "Commit_unit::genMoore" |
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21 | void Commit_unit::genMoore (void) |
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22 | { |
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23 | log_begin(Commit_unit,FUNCTION); |
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24 | log_function(Commit_unit,FUNCTION,_name.c_str()); |
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25 | |
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26 | // =================================================================== |
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27 | // =====[ REEXECUTE ]================================================= |
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28 | // =================================================================== |
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29 | { |
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30 | // Store instruction comming Out Of Order in Load Store Unit. |
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31 | // Must be executed in no speculative mode. Also, send a signal when an Store is in head of ROB |
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32 | |
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33 | Tcontrol_t val = false; |
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34 | |
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35 | if (not _rob[reg_NUM_BANK_HEAD].empty()) |
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36 | { |
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37 | entry_t * entry = _rob [reg_NUM_BANK_HEAD].front(); |
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38 | rob_state_t state = entry->state; |
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39 | |
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40 | // Test state |
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41 | val = ((state == ROB_STORE_HEAD_OK) or |
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42 | (state == ROB_STORE_HEAD_KO)); |
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43 | |
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44 | if (val) |
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45 | { |
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46 | // Reexecute store |
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47 | if (_param->_have_port_context_id) |
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48 | PORT_WRITE(out_REEXECUTE_CONTEXT_ID [0], entry->context_id ); |
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49 | if (_param->_have_port_front_end_id) |
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50 | PORT_WRITE(out_REEXECUTE_FRONT_END_ID [0], entry->front_end_id ); |
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51 | if (_param->_have_port_rob_ptr ) |
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52 | PORT_WRITE(out_REEXECUTE_PACKET_ID [0], entry->ptr ); |
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53 | PORT_WRITE(out_REEXECUTE_TYPE [0], entry->type ); |
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54 | PORT_WRITE(out_REEXECUTE_STORE_QUEUE_PTR_WRITE [0], entry->store_queue_ptr_write); |
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55 | PORT_WRITE(out_REEXECUTE_OPERATION [0], (state == ROB_STORE_HEAD_OK)?OPERATION_MEMORY_STORE_HEAD_OK:OPERATION_MEMORY_STORE_HEAD_KO); |
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56 | } |
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57 | } |
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58 | |
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59 | internal_REEXECUTE_VAL [0] = val; |
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60 | internal_REEXECUTE_NUM_BANK [0] = reg_NUM_BANK_HEAD; |
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61 | |
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62 | PORT_WRITE(out_REEXECUTE_VAL[0], internal_REEXECUTE_VAL [0]); |
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63 | } |
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64 | |
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65 | // =================================================================== |
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66 | // =====[ BRANCH_COMPLETE ]=========================================== |
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67 | // =================================================================== |
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68 | { |
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69 | // Branchement must be send at the prediction unit |
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70 | uint32_t nb_scan_bank = 0; |
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71 | |
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72 | // for each port, find a valid branchement. |
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73 | for (uint32_t i=0; i<_param->_nb_inst_branch_complete; i++) |
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74 | { |
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75 | Tcontrol_t val = false; |
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76 | |
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77 | for (uint32_t j=nb_scan_bank; j<_param->_nb_bank; j++) |
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78 | { |
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79 | nb_scan_bank ++; |
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80 | |
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81 | // translate bank number |
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82 | uint32_t num_bank = (reg_NUM_BANK_HEAD+j)%_param->_nb_bank; |
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83 | |
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84 | if (not _rob [num_bank].empty()) |
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85 | { |
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86 | entry_t * entry = _rob [num_bank].front(); |
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87 | rob_state_t state = entry->state; |
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88 | |
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89 | if (state == ROB_BRANCH_COMPLETE) |
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90 | { |
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91 | val = true; |
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92 | |
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93 | internal_BRANCH_COMPLETE_NUM_BANK [i] = num_bank; |
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94 | |
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95 | if (_param->_have_port_context_id) |
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96 | PORT_WRITE(out_BRANCH_COMPLETE_CONTEXT_ID [i], entry->context_id ); |
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97 | if (_param->_have_port_front_end_id) |
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98 | PORT_WRITE(out_BRANCH_COMPLETE_FRONT_END_ID [i], entry->front_end_id ); |
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99 | if (_param->_have_port_depth) |
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100 | PORT_WRITE(out_BRANCH_COMPLETE_DEPTH [i], entry->depth ); |
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101 | PORT_WRITE(out_BRANCH_COMPLETE_ADDRESS [i], entry->data_commit ); |
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102 | // PORT_WRITE(out_BRANCH_COMPLETE_FLAG [i],(entry->flags&FLAG_F)!=0); |
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103 | PORT_WRITE(out_BRANCH_COMPLETE_NO_SEQUENCE [i], entry->no_sequence ); |
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104 | |
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105 | break; |
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106 | } |
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107 | } |
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108 | } |
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109 | |
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110 | internal_BRANCH_COMPLETE_VAL [i] = val; |
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111 | PORT_WRITE(out_BRANCH_COMPLETE_VAL [i], internal_BRANCH_COMPLETE_VAL [i]); |
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112 | } |
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113 | } |
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114 | |
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115 | // =================================================================== |
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116 | // =====[ UPDATE ]==================================================== |
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117 | // =================================================================== |
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118 | { |
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119 | Tcontrol_t val = false; |
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120 | |
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121 | if (not _rob[reg_NUM_BANK_HEAD].empty()) |
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122 | { |
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123 | entry_t * entry = _rob [reg_NUM_BANK_HEAD].front(); |
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124 | rob_state_t state = entry->state; |
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125 | |
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126 | val = (state == ROB_END_EXCEPTION); |
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127 | |
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128 | if (val) |
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129 | { |
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130 | throw ERRORMORPHEO(FUNCTION,_("Moore : exception is not yet supported (Coming Soon).\n")); |
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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 | // =================================================================== |
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136 | // =====[ NB_INST ]=================================================== |
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137 | // =================================================================== |
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138 | for (uint32_t i=0; i<_param->_nb_front_end; i++) |
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139 | for (uint32_t j=0; j<_param->_nb_context [i]; j++) |
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140 | { |
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141 | PORT_WRITE(out_NB_INST_COMMIT_ALL [i][j], reg_NB_INST_COMMIT_ALL [i][j]); |
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142 | PORT_WRITE(out_NB_INST_COMMIT_MEM [i][j], reg_NB_INST_COMMIT_MEM [i][j]); |
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143 | } |
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144 | |
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145 | |
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146 | log_end(Commit_unit,FUNCTION); |
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147 | }; |
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148 | |
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149 | }; // end namespace commit_unit |
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150 | }; // end namespace ooo_engine |
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151 | }; // end namespace multi_ooo_engine |
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152 | }; // end namespace core |
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153 | }; // end namespace behavioural |
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154 | }; // end namespace morpheo |
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155 | #endif |
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