1 | |
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2 | /* -*- c++ -*- |
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3 | * File : vci_synthetic_initiator.cpp |
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4 | * Date : 23/12/2010 |
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5 | * Copyright : UPMC / LIP6 |
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6 | * Authors : Christophe Choichillon |
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7 | * Version : 2.0 |
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8 | * |
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9 | * SOCLIB_LGPL_HEADER_BEGIN |
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10 | * |
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11 | * This file is part of SoCLib, GNU LGPLv2.1. |
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12 | * |
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13 | * SoCLib is free software; you can redistribute it and/or modify it |
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14 | * under the terms of the GNU Lesser General Public License as published |
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15 | * by the Free Software Foundation; version 2.1 of the License. |
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16 | * |
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17 | * SoCLib is distributed in the hope that it will be useful, but |
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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20 | * Lesser General Public License for more details. |
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21 | * |
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22 | * You should have received a copy of the GNU Lesser General Public |
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23 | * License along with SoCLib; if not, write to the Free Software |
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24 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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25 | * 02110-1301 USA |
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26 | * |
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27 | * SOCLIB_LGPL_HEADER_END |
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28 | * |
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29 | * Maintainers: christophe.choichillon@lip6.fr |
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30 | */ |
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31 | |
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32 | #include "../include/vci_synthetic_initiator.h" |
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33 | #include <iostream> |
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34 | |
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35 | |
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36 | #define DETERMINISTIC |
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37 | |
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38 | namespace soclib { namespace caba { |
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39 | |
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40 | |
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41 | #define tmpl(x) template<typename vci_param> x VciSyntheticInitiator<vci_param> |
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42 | |
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43 | //using soclib::common::uint32_log2; |
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44 | |
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45 | //////////////////////////////// |
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46 | // Constructor |
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47 | //////////////////////////////// |
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48 | |
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49 | tmpl(/**/)::VciSyntheticInitiator( |
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50 | sc_module_name name, |
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51 | const soclib::common::MappingTable &mt, |
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52 | const soclib::common::IntTab &vci_index, |
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53 | const uint32_t length, // Packet length (flit numbers) |
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54 | const uint32_t rho, // Packets ratio on the network |
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55 | // const float rho, // Packets ratio on the network |
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56 | const uint32_t depth, // Fifo depth |
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57 | const uint32_t xmesh, |
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58 | const uint32_t ymesh, |
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59 | const uint32_t bc_period, // Broadcast period, if no broadcast => 0 |
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60 | const uint32_t xmin, |
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61 | const uint32_t xmax, |
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62 | const uint32_t ymin, |
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63 | const uint32_t ymax |
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64 | ) |
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65 | |
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66 | : soclib::caba::BaseModule(name), |
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67 | |
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68 | p_clk("clk"), |
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69 | p_resetn("resetn"), |
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70 | p_vci("vci_ini"), |
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71 | |
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72 | m_srcid( mt.indexForId(vci_index) ), |
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73 | // FIFOs |
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74 | m_length(length), |
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75 | m_rho(rho), |
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76 | m_depth(depth), |
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77 | m_xmesh(xmesh), |
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78 | m_ymesh(ymesh), |
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79 | m_bc_period(bc_period), |
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80 | m_xmin(xmin), |
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81 | m_xmax(xmax), |
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82 | m_ymin(ymin), |
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83 | m_ymax(ymax), |
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84 | m_date_fifo("m_date_fifo", depth), |
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85 | m_local_seed(m_srcid), |
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86 | r_cmd_fsm("r_cmd_fsm") |
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87 | { |
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88 | |
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89 | r_req_id = new sc_signal<uint64_t>*[tab_size]; |
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90 | for(int i = 0; i < tab_size ; i++){ |
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91 | r_req_id[i] = new sc_signal<uint64_t>[2]; |
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92 | } |
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93 | |
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94 | SC_METHOD(transition); |
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95 | dont_initialize(); |
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96 | sensitive << p_clk.pos(); |
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97 | |
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98 | SC_METHOD(genMoore); |
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99 | dont_initialize(); |
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100 | sensitive << p_clk.neg(); |
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101 | |
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102 | } // end constructor |
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103 | |
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104 | |
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105 | ///////////////////////////////// |
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106 | tmpl(/**/)::~VciSyntheticInitiator() |
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107 | ///////////////////////////////// |
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108 | { |
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109 | for(int i = 0; i < tab_size ; i++){ |
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110 | delete r_req_id[i]; |
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111 | } |
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112 | delete r_req_id; |
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113 | } |
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114 | |
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115 | /////////////////////////////////// |
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116 | tmpl(uint32_t)::destAdress() |
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117 | /////////////////////////////////// |
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118 | { |
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119 | return (uint32_t) (rand() % (m_xmesh * m_ymesh)) ; |
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120 | } |
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121 | |
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122 | |
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123 | /////////////////////////////////// |
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124 | tmpl(uint32_t)::destAdress(uint32_t *rand_seed) |
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125 | /////////////////////////////////// |
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126 | { |
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127 | return (uint32_t) (rand_r(rand_seed) % (m_xmesh * m_ymesh)) ; |
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128 | } |
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129 | |
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130 | |
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131 | ////////////////////////////////// |
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132 | tmpl(void)::print_trace() |
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133 | ////////////////////////////////// |
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134 | { |
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135 | const char* state_cmd_str[] = { "IDLE", |
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136 | "SINGLE_SEND", |
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137 | "BC_SEND"}; |
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138 | |
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139 | const char* state_bc_rsp_str[] = {"IDLE", |
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140 | "WAIT_RSP"}; |
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141 | |
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142 | std::cout << "Vci_Synthetic_Initiator " << name() |
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143 | << " : " << std::dec << m_cpt_cycles << " cycles " |
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144 | << " : state_cmd_fsm = " << state_cmd_str[r_cmd_fsm] |
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145 | << " : state_rsp_fsm = " << state_bc_rsp_str[r_bc_rsp_fsm] |
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146 | << " Adresse to send : " << std::hex << m_address_to_send |
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147 | << " Number of broadcast to receive : " << std::dec << r_bc_nrsp.read() |
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148 | << " Number of packets sent : " << std::dec << m_npackets << " " << m_id_to_send << std::endl; |
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149 | for(int i = 0; i < (1<<vci_param::T) ; i++){ |
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150 | std::cout << "ID : " << i << " " << (uint64_t)(r_req_id[i][0].read()) << " " << (uint64_t)(r_req_id[i][1].read()) << std::endl; |
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151 | } |
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152 | } |
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153 | |
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154 | ////////////////////////////////// |
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155 | tmpl(void)::printStats() |
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156 | ////////////////////////////////// |
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157 | { |
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158 | std::cout << name() << " : "<< std::dec << m_cpt_cycles << " cycles, " << m_npackets << " packets sent" << std::endl; |
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159 | std::cout << ((double)m_latency1/(double)m_npackets) << " | " << ((double)m_latency2/(double)m_npackets) << std::endl; |
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160 | if(m_bc_period) |
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161 | std::cout << ((double)m_latency_bc/(double)m_nb_bc) << std::endl; |
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162 | } |
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163 | |
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164 | ////////////////////////////////// |
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165 | tmpl(void)::transition() |
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166 | ////////////////////////////////// |
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167 | { |
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168 | // RESET |
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169 | if ( ! p_resetn.read() ) { |
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170 | // Initializing seed for random numbers generation |
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171 | #ifndef DETERMINISTIC |
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172 | srand(time(NULL)); |
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173 | #endif |
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174 | |
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175 | // Initializing FSMs |
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176 | r_cmd_fsm = VCI_IDLE; |
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177 | |
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178 | r_bc_rsp_fsm = BC_RSP_IDLE; |
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179 | |
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180 | // Initializing FIFOs |
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181 | m_date_fifo.init(); |
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182 | |
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183 | // Initializing the stats |
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184 | m_latency1 = 0 ; |
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185 | m_latency2 = 0 ; |
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186 | // Activity counters |
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187 | m_cpt_cycles = 0; |
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188 | m_npackets = 0; |
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189 | |
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190 | m_start_latency_bc = 0; |
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191 | m_latency_bc = 0; |
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192 | m_nb_bc = 0; |
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193 | m_id_to_send = -1; |
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194 | |
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195 | r_broadcast_req = false; |
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196 | |
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197 | r_broadcast_rsp = false; |
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198 | |
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199 | r_bc_nrsp = 0; |
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200 | |
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201 | for(int i = 0; i < tab_size; i++){ |
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202 | r_req_id[i][0] = 0; |
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203 | r_req_id[i][1] = 0; |
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204 | std::cout << "bla bla" << std::endl; |
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205 | } |
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206 | |
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207 | return; |
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208 | } |
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209 | |
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210 | bool date_fifo_put = false; |
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211 | bool date_fifo_get = false; |
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212 | |
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213 | |
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214 | |
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215 | // FSM controling effective requests send |
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216 | switch ( r_cmd_fsm.read() ) { |
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217 | ////////////////// |
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218 | case VCI_IDLE: |
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219 | { |
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220 | if (m_date_fifo.rok()){ |
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221 | if (r_broadcast_req.read() && !r_broadcast_rsp.read()){ |
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222 | m_address_to_send = 0x3 | (0x7c1f << vci_param::N-20) ; |
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223 | r_cmd_fsm = VCI_BC_SEND ; |
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224 | } else { |
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225 | m_id_to_send = -1; |
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226 | for(int i = 0; i < tab_size; i++){ |
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227 | if(r_req_id[i][0].read() == 0){ |
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228 | m_id_to_send = i; |
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229 | //r_req_id[i][0] = m_date_fifo.read(); |
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230 | //r_req_id[i][1] = m_cpt_cycles; |
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231 | break; |
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232 | } |
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233 | } |
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234 | if(m_id_to_send == -1){ |
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235 | r_cmd_fsm = VCI_IDLE ; |
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236 | break; |
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237 | } else { |
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238 | r_cmd_fsm = VCI_SINGLE_SEND ; |
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239 | } |
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240 | #ifdef DETERMINISTIC |
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241 | m_address_to_send = destAdress(&m_local_seed) << (vci_param::N)-(soclib::common::uint32_log2((uint32_t)m_xmesh)+soclib::common::uint32_log2((uint32_t)m_ymesh)); |
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242 | #else |
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243 | m_address_to_send = destAdress() << (vci_param::N)-(soclib::common::uint32_log2((uint32_t)m_xmesh)+soclib::common::uint32_log2((uint32_t)m_ymesh)); |
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244 | #endif |
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245 | m_count = 0; |
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246 | } |
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247 | } |
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248 | break; |
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249 | } |
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250 | ////////////////// |
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251 | case VCI_SINGLE_SEND: |
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252 | { |
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253 | if (p_vci.cmdack.read()){ |
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254 | if (m_count == m_length-1) { |
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255 | //r_req_id[m_id_to_send][0] = (uint64_t)(m_date_fifo.read()); |
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256 | r_req_id[m_id_to_send][0] = m_date_fifo.read(); |
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257 | r_req_id[m_id_to_send][1] = m_cpt_cycles; |
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258 | //std::cout << name () << " FIFO " << m_date_fifo.read() << std::endl; |
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259 | date_fifo_get = true; |
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260 | m_npackets++; |
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261 | r_cmd_fsm = VCI_IDLE ; |
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262 | } else { |
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263 | r_cmd_fsm = VCI_SINGLE_SEND ; |
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264 | m_count++; |
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265 | } |
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266 | } |
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267 | break; |
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268 | } |
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269 | /////////////////// |
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270 | case VCI_BC_SEND: |
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271 | { |
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272 | if (p_vci.rspval.read()) { |
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273 | r_bc_nrsp = (m_xmax - m_xmin) * (m_ymax - m_ymin) ; |
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274 | m_start_latency_bc = m_cpt_cycles; |
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275 | r_broadcast_rsp = true; |
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276 | date_fifo_get = true; |
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277 | r_bc_rsp_fsm = VCI_IDLE; |
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278 | break; |
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279 | } |
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280 | } |
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281 | } // end switch vci_fsm |
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282 | |
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283 | switch(r_bc_rsp_fsm.read()){ |
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284 | /////////////////// |
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285 | case BC_RSP_IDLE: |
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286 | { |
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287 | if (p_vci.rspval.read() && r_broadcast_rsp.read()) { |
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288 | r_bc_rsp_fsm = BC_RSP_WAIT_RSP; |
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289 | break; |
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290 | } |
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291 | } |
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292 | //////////////////// |
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293 | case BC_RSP_WAIT_RSP: |
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294 | { |
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295 | if (p_vci.rspval.read() && (p_vci.rpktid.read() == 1)){ |
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296 | if (r_bc_nrsp == 1) { |
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297 | r_broadcast_req = false; |
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298 | r_broadcast_rsp = false; |
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299 | m_address_to_send = 0; |
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300 | m_latency_bc = m_latency_bc + (m_cpt_cycles - m_start_latency_bc); |
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301 | m_nb_bc++; |
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302 | r_bc_rsp_fsm = BC_RSP_IDLE ; |
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303 | } else { |
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304 | r_bc_nrsp = r_bc_nrsp.read() - 1;; |
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305 | r_bc_rsp_fsm = BC_RSP_WAIT_RSP ; |
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306 | } |
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307 | } |
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308 | break; |
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309 | } |
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310 | } |
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311 | |
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312 | if(p_vci.rspval.read()){ |
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313 | if((int)(p_vci.pktid.read()) == 0){ |
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314 | m_latency1 = m_latency1 + (m_cpt_cycles - r_req_id[(int)(p_vci.rtrdid.read())][0].read()); |
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315 | m_latency2 = m_latency2 + (m_cpt_cycles - r_req_id[(int)(p_vci.rtrdid.read())][1].read()); |
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316 | //m_npackets++; |
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317 | r_req_id[(int)(p_vci.rtrdid.read())][0] = 0; |
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318 | r_req_id[(int)(p_vci.rtrdid.read())][1] = 0; |
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319 | //std::cout << name() << " bla bla " << p_vci.rtrdid.read() << std::endl; |
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320 | } |
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321 | } |
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322 | |
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323 | /////////////////// Filling fifo |
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324 | if( ( (uint64_t)(m_rho*m_cpt_cycles) > (uint64_t)(m_length*m_npackets*1000)) ){ |
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325 | if (m_date_fifo.wok()){ |
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326 | date_fifo_put = true ; |
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327 | } |
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328 | if (m_bc_period){ |
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329 | if (!r_broadcast_req.read() && (m_cpt_cycles % m_bc_period)){ |
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330 | r_broadcast_req = true; |
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331 | } |
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332 | } |
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333 | } |
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334 | |
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335 | if (date_fifo_put){ |
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336 | if (date_fifo_get){ |
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337 | m_date_fifo.put_and_get(m_cpt_cycles); |
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338 | } else { |
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339 | m_date_fifo.simple_put(m_cpt_cycles); |
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340 | } |
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341 | } else { |
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342 | if (date_fifo_get){ |
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343 | m_date_fifo.simple_get(); |
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344 | } |
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345 | } |
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346 | |
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347 | m_cpt_cycles++; |
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348 | |
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349 | return; |
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350 | |
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351 | } // end transition() |
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352 | |
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353 | ///////////////////////////// |
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354 | tmpl(void)::genMoore() |
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355 | ///////////////////////////// |
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356 | { |
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357 | //////////////////////////////////////////////////////////// |
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358 | // Command signals on the p_vci port |
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359 | //////////////////////////////////////////////////////////// |
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360 | p_vci.cmd = vci_param::CMD_WRITE; |
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361 | p_vci.be = 0xF; |
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362 | p_vci.srcid = m_srcid; |
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363 | p_vci.pktid = 0; |
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364 | p_vci.cons = false; |
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365 | p_vci.wrap = false; |
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366 | p_vci.contig = true; |
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367 | p_vci.clen = 0; |
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368 | p_vci.cfixed = false; |
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369 | p_vci.rspack = true; |
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370 | |
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371 | |
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372 | switch ( r_cmd_fsm.read() ) { |
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373 | |
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374 | ////////////////// |
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375 | case VCI_IDLE: |
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376 | { |
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377 | p_vci.cmdval = false; |
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378 | p_vci.address = 0; |
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379 | p_vci.plen = 0; |
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380 | p_vci.wdata = 0; |
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381 | p_vci.trdid = 0; |
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382 | p_vci.eop = false; |
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383 | break; |
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384 | } |
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385 | ////////////////// |
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386 | case VCI_SINGLE_SEND: |
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387 | { |
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388 | p_vci.cmdval = true; |
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389 | p_vci.address = (addr_t)(m_address_to_send + (m_count*4)); |
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390 | p_vci.plen = m_length*4; |
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391 | p_vci.wdata = 0; |
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392 | p_vci.trdid = m_id_to_send; |
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393 | if (m_count == m_length - 1 ) { |
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394 | p_vci.eop = true; |
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395 | } else { |
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396 | p_vci.eop = false; |
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397 | } |
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398 | break; |
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399 | } |
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400 | /////////////////// |
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401 | case VCI_BC_SEND: |
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402 | { |
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403 | p_vci.cmdval = true; |
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404 | p_vci.address = (addr_t) m_address_to_send; |
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405 | p_vci.plen = 4; |
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406 | p_vci.wdata = 0; |
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407 | p_vci.pktid = 1; |
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408 | p_vci.trdid = 0; |
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409 | p_vci.eop = true; |
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410 | break; |
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411 | } |
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412 | } // end switch vci_cmd_fsm |
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413 | |
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414 | } // end genMoore() |
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415 | |
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416 | }} // end name space |
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