[77] | 1 | /* -*- c++ -*- |
---|
| 2 | * File : vci_traffic_generator.cpp |
---|
| 3 | * Date : 26/08/2010 |
---|
| 4 | * Copyright : UPMC / LIP6 |
---|
| 5 | * Authors : Christophe Choichillon |
---|
| 6 | * |
---|
| 7 | * SOCLIB_LGPL_HEADER_BEGIN |
---|
| 8 | * |
---|
| 9 | * This file is part of SoCLib, GNU LGPLv2.1. |
---|
| 10 | * |
---|
| 11 | * SoCLib is free software; you can redistribute it and/or modify it |
---|
| 12 | * under the terms of the GNU Lesser General Public License as published |
---|
| 13 | * by the Free Software Foundation; version 2.1 of the License. |
---|
| 14 | * |
---|
| 15 | * SoCLib is distributed in the hope that it will be useful, but |
---|
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
---|
| 18 | * Lesser General Public License for more details. |
---|
| 19 | * |
---|
| 20 | * You should have received a copy of the GNU Lesser General Public |
---|
| 21 | * License along with SoCLib; if not, write to the Free Software |
---|
| 22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
---|
| 23 | * 02110-1301 USA |
---|
| 24 | * |
---|
| 25 | * SOCLIB_LGPL_HEADER_END |
---|
| 26 | * |
---|
| 27 | * Maintainers: christophe.choichillon@lip6.fr |
---|
| 28 | */ |
---|
| 29 | |
---|
[78] | 30 | #include "../include/vci_synthetic_initiator.h" |
---|
[77] | 31 | |
---|
| 32 | |
---|
| 33 | |
---|
| 34 | namespace soclib { namespace caba { |
---|
| 35 | |
---|
| 36 | |
---|
[78] | 37 | #define tmpl(x) template<typename vci_param> x VciSyntheticInitiator<vci_param> |
---|
[77] | 38 | |
---|
[78] | 39 | //using soclib::common::uint32_log2; |
---|
| 40 | |
---|
[77] | 41 | //////////////////////////////// |
---|
| 42 | // Constructor |
---|
| 43 | //////////////////////////////// |
---|
| 44 | |
---|
[78] | 45 | tmpl(/**/)::VciSyntheticInitiator( |
---|
[77] | 46 | sc_module_name name, |
---|
[98] | 47 | const soclib::common::MappingTable &mt, |
---|
| 48 | const soclib::common::IntTab &vci_index, |
---|
[78] | 49 | size_t length, // Packet length (flit numbers) |
---|
| 50 | float rho, // Packets ratio on the network |
---|
| 51 | size_t depth, // Fifo depth |
---|
| 52 | size_t xmesh, |
---|
| 53 | size_t ymesh, |
---|
[98] | 54 | size_t bc_period = 0, // Broadcast period, if no broadcast => 0 |
---|
| 55 | size_t xmin = 0, |
---|
| 56 | size_t xmax = 0, |
---|
| 57 | size_t ymin = 0, |
---|
| 58 | size_t ymax = 0 |
---|
[78] | 59 | ) |
---|
[77] | 60 | |
---|
| 61 | : soclib::caba::BaseModule(name), |
---|
| 62 | |
---|
| 63 | p_clk("clk"), |
---|
| 64 | p_resetn("resetn"), |
---|
| 65 | p_vci("vci_ini"), |
---|
| 66 | |
---|
[98] | 67 | m_srcid( mt.indexForId(vci_index) ), |
---|
| 68 | m_coord(vci_index[1]), |
---|
[77] | 69 | // FIFOs |
---|
[81] | 70 | m_length(length), |
---|
| 71 | m_rho(rho), |
---|
| 72 | m_depth(depth), |
---|
| 73 | m_x(x), |
---|
| 74 | m_y(y), |
---|
| 75 | m_xmesh(xmesh), |
---|
| 76 | m_ymesh(ymesh), |
---|
| 77 | m_bc_period(bc_period), |
---|
| 78 | m_xmin(xmin), |
---|
| 79 | m_xmax(xmax), |
---|
| 80 | m_ymin(ymin), |
---|
| 81 | m_ymax(ymax), |
---|
[78] | 82 | m_date_fifo("m_date_fifo", depth), |
---|
[98] | 83 | r_vci_fsm("r_vci_fsm"), |
---|
[77] | 84 | { |
---|
| 85 | |
---|
| 86 | |
---|
| 87 | SC_METHOD(transition); |
---|
| 88 | dont_initialize(); |
---|
| 89 | sensitive << p_clk.pos(); |
---|
| 90 | |
---|
| 91 | SC_METHOD(genMoore); |
---|
| 92 | dont_initialize(); |
---|
| 93 | sensitive << p_clk.neg(); |
---|
| 94 | |
---|
| 95 | } // end constructor |
---|
| 96 | |
---|
| 97 | |
---|
| 98 | ///////////////////////////////// |
---|
[78] | 99 | tmpl(/**/)::~VciSyntheticInitiator() |
---|
[77] | 100 | ///////////////////////////////// |
---|
| 101 | { |
---|
| 102 | } |
---|
| 103 | |
---|
[81] | 104 | /////////////////////////////////// |
---|
[98] | 105 | tmpl(size_t)::destAdress() |
---|
[81] | 106 | /////////////////////////////////// |
---|
| 107 | { |
---|
[98] | 108 | size_t dest; |
---|
| 109 | do{ |
---|
| 110 | dest = (size_t) (rand() % (m_xmesh * m_ymesh)); |
---|
| 111 | } while(dest == m_srcid); |
---|
| 112 | return dest ; |
---|
[81] | 113 | } |
---|
| 114 | |
---|
[98] | 115 | |
---|
| 116 | /////////////////////////////////// |
---|
| 117 | // tmpl(void)::destAdress(/*size_t X_local, size_t Y_local,*/ size_t &X_dest, size_t &Y_dest) |
---|
| 118 | /////////////////////////////////// |
---|
| 119 | // { |
---|
| 120 | // size_t x_dest_calc, y_dest_calc; |
---|
| 121 | // do{ |
---|
| 122 | // x_dest_calc = (rand()%m_xmesh); |
---|
| 123 | // y_dest_calc = (rand()%m_ymesh); |
---|
| 124 | // } while((x_dest_calc = m_x) && (y_dest_calc == m_y)); |
---|
| 125 | // } |
---|
| 126 | |
---|
[77] | 127 | ////////////////////////////////// |
---|
| 128 | tmpl(void)::transition() |
---|
| 129 | ////////////////////////////////// |
---|
| 130 | { |
---|
| 131 | // RESET |
---|
| 132 | if ( ! p_resetn.read() ) { |
---|
[98] | 133 | // Initializing seed for random numbers generation |
---|
| 134 | srand(time(NULL)); |
---|
[77] | 135 | |
---|
[98] | 136 | // Initializing FSMs |
---|
| 137 | r_vci_fsm = VCI_IDLE; |
---|
[77] | 138 | |
---|
[98] | 139 | // Initializing FIFOs |
---|
[78] | 140 | m_date_fifo.init(); |
---|
[77] | 141 | |
---|
| 142 | // Activity counters |
---|
| 143 | m_cpt_cycles = 0; |
---|
[81] | 144 | m_npackets = 0; |
---|
[77] | 145 | |
---|
| 146 | return; |
---|
| 147 | } |
---|
| 148 | |
---|
[81] | 149 | bool date_fifo_put = false; |
---|
| 150 | bool date_fifo_get = false; |
---|
[77] | 151 | |
---|
[78] | 152 | switch ( r_vci_fsm.read() ) { |
---|
[77] | 153 | |
---|
| 154 | ////////////////// |
---|
[78] | 155 | case VCI_IDLE: |
---|
[77] | 156 | { |
---|
[98] | 157 | if (m_date_fifo.rok()){ |
---|
| 158 | if (r_broadcast_req.read()){ |
---|
| 159 | r_vci_fsm = VCI_BC_SEND ; |
---|
| 160 | } else { |
---|
| 161 | r_vci_fsm = VCI_SINGLE_SEND ; |
---|
| 162 | destAdress(); |
---|
| 163 | m_count = 0; |
---|
| 164 | } |
---|
| 165 | } |
---|
[77] | 166 | break; |
---|
| 167 | } |
---|
| 168 | ////////////////// |
---|
[78] | 169 | case VCI_SINGLE_SEND: |
---|
[77] | 170 | { |
---|
[98] | 171 | if (p_vci.cmdack.read()){ |
---|
| 172 | m_count++; |
---|
| 173 | if (m_count == m_length-1) { |
---|
| 174 | m_start_latency1 = m_date_fifo.read(); |
---|
| 175 | m_start_latency2 = m_cpt_cycles; |
---|
| 176 | r_vci_fsm = VCI_SINGLE_RECEIVE ; |
---|
| 177 | } else { |
---|
| 178 | r_vci_fsm = VCI_SINGLE_SEND ; |
---|
| 179 | } |
---|
| 180 | } |
---|
[77] | 181 | break; |
---|
| 182 | } |
---|
| 183 | ////////////////////// |
---|
[78] | 184 | case VCI_SINGLE_RECEIVE: |
---|
[77] | 185 | { |
---|
[98] | 186 | if (p_vci.rspval.read()) { |
---|
| 187 | m_start_latency1 = m_date_fifo.read(); |
---|
| 188 | m_start_latency2 = m_cpt_cycles; |
---|
| 189 | m_npackets++; |
---|
| 190 | date_fifo_get = true; |
---|
[81] | 191 | r_vci_fsm = VCI_IDLE ; |
---|
| 192 | } |
---|
[77] | 193 | break; |
---|
| 194 | } |
---|
| 195 | /////////////////// |
---|
[78] | 196 | case VCI_BC_SEND: |
---|
[77] | 197 | { |
---|
[98] | 198 | m_address_to_send.broadcast_address.xmin = m_xmin; |
---|
| 199 | m_address_to_send.broadcast_address.xmax = m_xmax; |
---|
| 200 | m_address_to_send.broadcast_address.ymin = m_ymin; |
---|
| 201 | m_address_to_send.broadcast_address.ymax = m_ymax; |
---|
| 202 | m_address_to_send.broadcast_address.bc = 0x3; |
---|
| 203 | m_bc_nrsp = (m_xmax - m_xmin) * (m_ymax - m_ymin); |
---|
| 204 | r_vci_fsm = VCI_BC_SEND; |
---|
[77] | 205 | break; |
---|
| 206 | } |
---|
| 207 | //////////////////// |
---|
[78] | 208 | case VCI_BC_RECEIVE: |
---|
[77] | 209 | { |
---|
[98] | 210 | if (p_vci.rspval.read()){ |
---|
| 211 | if (m_bc_nrsp == 0) { |
---|
| 212 | r_broadcast_req = false; |
---|
| 213 | r_vci_fsm = VCI_IDLE ; |
---|
| 214 | } else { |
---|
| 215 | m_bc_nrsp--; |
---|
| 216 | r_vci_fsm = VCI_BC_RECEIVE ; |
---|
| 217 | } |
---|
| 218 | } |
---|
[77] | 219 | break; |
---|
| 220 | } |
---|
[78] | 221 | } // end switch vci_fsm |
---|
[77] | 222 | |
---|
| 223 | |
---|
[81] | 224 | /////////////////// Filling fifo |
---|
[98] | 225 | if( (rhos < m_rho) && (rand()/RAND_MAX) ){ |
---|
[81] | 226 | if (m_date_fifo.wok()){ |
---|
| 227 | date_fifo_put = true ; |
---|
| 228 | } |
---|
| 229 | if (!r_broadcast_req.read() && (m_cpt_cycles % bc_period)){ |
---|
| 230 | r_broadcast_req = true; |
---|
| 231 | } |
---|
| 232 | } |
---|
| 233 | |
---|
| 234 | if (date_fifo_put){ |
---|
| 235 | if (date_fifo_get){ |
---|
| 236 | m_date_fifo.put_and_get(m_cpt_cycles); |
---|
[77] | 237 | } else { |
---|
[81] | 238 | m_date_fifo.simple_put(m_cpt_cycles); |
---|
[77] | 239 | } |
---|
| 240 | } else { |
---|
[81] | 241 | if (date_fifo_get){ |
---|
| 242 | m_date_fifo.simple_get(); |
---|
[77] | 243 | } |
---|
| 244 | } |
---|
[98] | 245 | |
---|
| 246 | m_rhos = (float) ((m_npackets * m_length) / m_cpt_cycles) ; |
---|
[77] | 247 | |
---|
| 248 | m_cpt_cycles++; |
---|
| 249 | |
---|
[81] | 250 | return; |
---|
| 251 | |
---|
[77] | 252 | } // end transition() |
---|
| 253 | |
---|
| 254 | ///////////////////////////// |
---|
| 255 | tmpl(void)::genMoore() |
---|
| 256 | ///////////////////////////// |
---|
| 257 | { |
---|
| 258 | //////////////////////////////////////////////////////////// |
---|
[98] | 259 | // Command signals on the p_vci port |
---|
[77] | 260 | //////////////////////////////////////////////////////////// |
---|
[98] | 261 | p_vci.cmd = vci_param::CMD_WRITE; |
---|
[81] | 262 | p_vci.be = 0xF; |
---|
| 263 | p_vci.pktid = 0; |
---|
[98] | 264 | p_vci.srcid = m_srcid; |
---|
[81] | 265 | p_vci.cons = false; |
---|
| 266 | p_vci.wrap = false; |
---|
| 267 | p_vci.contig = true; |
---|
| 268 | p_vci.clen = 0; |
---|
| 269 | p_vci.cfixed = false; |
---|
[77] | 270 | |
---|
| 271 | |
---|
[78] | 272 | switch ( r_vci_fsm.read() ) { |
---|
[77] | 273 | |
---|
[78] | 274 | ////////////////// |
---|
| 275 | case VCI_IDLE: |
---|
| 276 | { |
---|
[81] | 277 | p_vci.cmdval = false; |
---|
| 278 | p_vci.address = 0; |
---|
| 279 | p_vci.plen = 0; |
---|
| 280 | p_vci.wdata = 0; |
---|
| 281 | p_vci.trdid = 0; |
---|
| 282 | p_vci.eop = false; |
---|
[98] | 283 | p_vci.rspack = false; |
---|
[78] | 284 | break; |
---|
| 285 | } |
---|
| 286 | ////////////////// |
---|
| 287 | case VCI_SINGLE_SEND: |
---|
| 288 | { |
---|
[98] | 289 | p_vci.cmdval = true; |
---|
| 290 | p_vci.address = (typename vci_param::addr_t)(m_address_to_send+(m_count*4)); |
---|
| 291 | p_vci.plen = m_length*4; |
---|
| 292 | p_vci.wdata = 0; |
---|
| 293 | p_vci.trdid = 0; |
---|
| 294 | if (m_count == m_length - 1 ) { |
---|
| 295 | p_vci.eop = true; |
---|
| 296 | } else { |
---|
| 297 | p_vci.eop = false; |
---|
| 298 | } |
---|
| 299 | p_vci.rspack = false; |
---|
[78] | 300 | break; |
---|
| 301 | } |
---|
| 302 | ////////////////////// |
---|
| 303 | case VCI_SINGLE_RECEIVE: |
---|
| 304 | { |
---|
[98] | 305 | p_vci.cmdval = false; |
---|
| 306 | p_vci.address = 0; |
---|
| 307 | p_vci.plen = 0; |
---|
| 308 | p_vci.wdata = 0; |
---|
| 309 | p_vci.trdid = 0; |
---|
| 310 | p_vci.eop = false; |
---|
| 311 | p_vci.rspack = true; |
---|
| 312 | break; |
---|
[78] | 313 | } |
---|
| 314 | /////////////////// |
---|
| 315 | case VCI_BC_SEND: |
---|
| 316 | { |
---|
[98] | 317 | p_vci.cmdval = true; |
---|
| 318 | p_vci.address = (typename vci_param::addr_t) m_address_to_send; |
---|
| 319 | p_vci.plen = 4; |
---|
| 320 | p_vci.wdata = 0; |
---|
| 321 | p_vci.trdid = 0; |
---|
| 322 | p_vci.eop = true; |
---|
| 323 | p_vci.rspack = false; |
---|
[78] | 324 | break; |
---|
| 325 | } |
---|
| 326 | //////////////////// |
---|
| 327 | case VCI_BC_RECEIVE: |
---|
| 328 | { |
---|
[98] | 329 | p_vci.cmdval = false; |
---|
| 330 | p_vci.address = 0; |
---|
| 331 | p_vci.plen = 0; |
---|
| 332 | p_vci.wdata = 0; |
---|
| 333 | p_vci.trdid = 0; |
---|
| 334 | p_vci.eop = false; |
---|
| 335 | p_vci.rspack = true; |
---|
[78] | 336 | break; |
---|
| 337 | } |
---|
| 338 | } // end switch vci_fsm |
---|
[77] | 339 | |
---|
| 340 | } // end genMoore() |
---|
| 341 | |
---|
| 342 | }} // end name space |
---|