1# 2# Copyright (c) 2011-2015 Advanced Micro Devices, Inc. 3# All rights reserved. 4# 5# For use for simulation and test purposes only 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions are met: 9# 10# 1. Redistributions of source code must retain the above copyright notice, 11# this list of conditions and the following disclaimer. 12# 13# 2. Redistributions in binary form must reproduce the above copyright notice, 14# this list of conditions and the following disclaimer in the documentation 15# and/or other materials provided with the distribution. 16# 17# 3. Neither the name of the copyright holder nor the names of its contributors 18# may be used to endorse or promote products derived from this software 19# without specific prior written permission. 20# 21# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 22# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 25# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31# POSSIBILITY OF SUCH DAMAGE. 32# 33# Author: Lisa Hsu 34# 35 36import math 37import m5 38from m5.objects import * 39from m5.defines import buildEnv 40from Ruby import create_topology 41from Ruby import send_evicts 42 43from Cluster import Cluster 44from Crossbar import Crossbar 45 46class CntrlBase: 47 _seqs = 0 48 @classmethod 49 def seqCount(cls): 50 # Use SeqCount not class since we need global count 51 CntrlBase._seqs += 1 52 return CntrlBase._seqs - 1 53 54 _cntrls = 0 55 @classmethod 56 def cntrlCount(cls): 57 # Use CntlCount not class since we need global count 58 CntrlBase._cntrls += 1 59 return CntrlBase._cntrls - 1 60 61 _version = 0 62 @classmethod 63 def versionCount(cls): 64 cls._version += 1 # Use count for this particular type 65 return cls._version - 1 66 67class L1Cache(RubyCache): 68 resourceStalls = False 69 dataArrayBanks = 2 70 tagArrayBanks = 2 71 dataAccessLatency = 1 72 tagAccessLatency = 1 73 def create(self, size, assoc, options): 74 self.size = MemorySize(size) 75 self.assoc = assoc 76 self.replacement_policy = PseudoLRUReplacementPolicy() 77 78class L2Cache(RubyCache): 79 resourceStalls = False 80 assoc = 16 81 dataArrayBanks = 16 82 tagArrayBanks = 16 83 def create(self, size, assoc, options): 84 self.size = MemorySize(size) 85 self.assoc = assoc 86 self.replacement_policy = PseudoLRUReplacementPolicy() 87 88class CPCntrl(CorePair_Controller, CntrlBase): 89 90 def create(self, options, ruby_system, system): 91 self.version = self.versionCount() 92 93 self.L1Icache = L1Cache() 94 self.L1Icache.create(options.l1i_size, options.l1i_assoc, options) 95 self.L1D0cache = L1Cache() 96 self.L1D0cache.create(options.l1d_size, options.l1d_assoc, options) 97 self.L1D1cache = L1Cache() 98 self.L1D1cache.create(options.l1d_size, options.l1d_assoc, options) 99 self.L2cache = L2Cache() 100 self.L2cache.create(options.l2_size, options.l2_assoc, options) 101 102 self.sequencer = RubySequencer() 103 self.sequencer.version = self.seqCount() 104 self.sequencer.icache = self.L1Icache 105 self.sequencer.dcache = self.L1D0cache 106 self.sequencer.ruby_system = ruby_system 107 self.sequencer.coreid = 0 108 self.sequencer.is_cpu_sequencer = True 109 110 self.sequencer1 = RubySequencer() 111 self.sequencer1.version = self.seqCount() 112 self.sequencer1.icache = self.L1Icache 113 self.sequencer1.dcache = self.L1D1cache 114 self.sequencer1.ruby_system = ruby_system 115 self.sequencer1.coreid = 1 116 self.sequencer1.is_cpu_sequencer = True 117 118 self.issue_latency = options.cpu_to_dir_latency 119 self.send_evictions = send_evicts(options) 120 121 self.ruby_system = ruby_system 122 123 if options.recycle_latency: 124 self.recycle_latency = options.recycle_latency 125 126class TCPCache(RubyCache): 127 size = "16kB" 128 assoc = 16 129 dataArrayBanks = 16 #number of data banks 130 tagArrayBanks = 16 #number of tag banks 131 dataAccessLatency = 4 132 tagAccessLatency = 1 133 def create(self, options): 134 self.size = MemorySize(options.tcp_size) 135 self.assoc = options.tcp_assoc 136 self.resourceStalls = options.no_tcc_resource_stalls 137 self.replacement_policy = PseudoLRUReplacementPolicy() 138 139class TCPCntrl(TCP_Controller, CntrlBase): 140 141 def create(self, options, ruby_system, system): 142 self.version = self.versionCount() 143 144 self.L1cache = TCPCache(tagAccessLatency = options.TCP_latency, 145 dataAccessLatency = options.TCP_latency) 146 self.L1cache.resourceStalls = options.no_resource_stalls 147 self.L1cache.create(options) 148 self.issue_latency = 1 149 150 self.coalescer = VIPERCoalescer() 151 self.coalescer.version = self.seqCount() 152 self.coalescer.icache = self.L1cache 153 self.coalescer.dcache = self.L1cache 154 self.coalescer.ruby_system = ruby_system 155 self.coalescer.support_inst_reqs = False 156 self.coalescer.is_cpu_sequencer = False 157 158 self.sequencer = RubySequencer() 159 self.sequencer.version = self.seqCount() 160 self.sequencer.icache = self.L1cache 161 self.sequencer.dcache = self.L1cache 162 self.sequencer.ruby_system = ruby_system 163 self.sequencer.is_cpu_sequencer = True 164 165 self.use_seq_not_coal = False 166 167 self.ruby_system = ruby_system 168 169 if options.recycle_latency: 170 self.recycle_latency = options.recycle_latency 171 172 def createCP(self, options, ruby_system, system): 173 self.version = self.versionCount() 174 175 self.L1cache = TCPCache(tagAccessLatency = options.TCP_latency, 176 dataAccessLatency = options.TCP_latency) 177 self.L1cache.resourceStalls = options.no_resource_stalls 178 self.L1cache.create(options) 179 self.issue_latency = 1 180 181 self.coalescer = VIPERCoalescer() 182 self.coalescer.version = self.seqCount() 183 self.coalescer.icache = self.L1cache 184 self.coalescer.dcache = self.L1cache 185 self.coalescer.ruby_system = ruby_system 186 self.coalescer.support_inst_reqs = False 187 self.coalescer.is_cpu_sequencer = False 188 189 self.sequencer = RubySequencer() 190 self.sequencer.version = self.seqCount() 191 self.sequencer.icache = self.L1cache 192 self.sequencer.dcache = self.L1cache 193 self.sequencer.ruby_system = ruby_system 194 self.sequencer.is_cpu_sequencer = True 195 196 self.use_seq_not_coal = True 197 198 self.ruby_system = ruby_system 199 200 if options.recycle_latency: 201 self.recycle_latency = options.recycle_latency 202 203class SQCCache(RubyCache): 204 dataArrayBanks = 8 205 tagArrayBanks = 8 206 dataAccessLatency = 1 207 tagAccessLatency = 1 208 209 def create(self, options): 210 self.size = MemorySize(options.sqc_size) 211 self.assoc = options.sqc_assoc 212 self.replacement_policy = PseudoLRUReplacementPolicy() 213 214class SQCCntrl(SQC_Controller, CntrlBase): 215 216 def create(self, options, ruby_system, system): 217 self.version = self.versionCount() 218 219 self.L1cache = SQCCache() 220 self.L1cache.create(options) 221 self.L1cache.resourceStalls = options.no_resource_stalls 222 223 self.sequencer = RubySequencer() 224 225 self.sequencer.version = self.seqCount() 226 self.sequencer.icache = self.L1cache 227 self.sequencer.dcache = self.L1cache 228 self.sequencer.ruby_system = ruby_system 229 self.sequencer.support_data_reqs = False 230 self.sequencer.is_cpu_sequencer = False 231 232 self.ruby_system = ruby_system 233 234 if options.recycle_latency: 235 self.recycle_latency = options.recycle_latency 236 237class TCC(RubyCache): 238 size = MemorySize("256kB") 239 assoc = 16 240 dataAccessLatency = 8 241 tagAccessLatency = 2 242 resourceStalls = True 243 def create(self, options): 244 self.assoc = options.tcc_assoc 245 if hasattr(options, 'bw_scalor') and options.bw_scalor > 0: 246 s = options.num_compute_units 247 tcc_size = s * 128 248 tcc_size = str(tcc_size)+'kB' 249 self.size = MemorySize(tcc_size) 250 self.dataArrayBanks = 64 251 self.tagArrayBanks = 64 252 else: 253 self.size = MemorySize(options.tcc_size) 254 self.dataArrayBanks = 256 / options.num_tccs #number of data banks 255 self.tagArrayBanks = 256 / options.num_tccs #number of tag banks 256 self.size.value = self.size.value / options.num_tccs 257 if ((self.size.value / long(self.assoc)) < 128): 258 self.size.value = long(128 * self.assoc) 259 self.start_index_bit = math.log(options.cacheline_size, 2) + \ 260 math.log(options.num_tccs, 2) 261 self.replacement_policy = PseudoLRUReplacementPolicy() 262 263 264class TCCCntrl(TCC_Controller, CntrlBase): 265 def create(self, options, ruby_system, system): 266 self.version = self.versionCount() 267 self.L2cache = TCC() 268 self.L2cache.create(options) 269 self.L2cache.resourceStalls = options.no_tcc_resource_stalls 270 271 self.ruby_system = ruby_system 272 273 if options.recycle_latency: 274 self.recycle_latency = options.recycle_latency 275 276class L3Cache(RubyCache): 277 dataArrayBanks = 16 278 tagArrayBanks = 16 279 280 def create(self, options, ruby_system, system): 281 self.size = MemorySize(options.l3_size) 282 self.size.value /= options.num_dirs 283 self.assoc = options.l3_assoc 284 self.dataArrayBanks /= options.num_dirs 285 self.tagArrayBanks /= options.num_dirs 286 self.dataArrayBanks /= options.num_dirs 287 self.tagArrayBanks /= options.num_dirs 288 self.dataAccessLatency = options.l3_data_latency 289 self.tagAccessLatency = options.l3_tag_latency 290 self.resourceStalls = False 291 self.replacement_policy = PseudoLRUReplacementPolicy() 292 293class L3Cntrl(L3Cache_Controller, CntrlBase): 294 def create(self, options, ruby_system, system): 295 self.version = self.versionCount() 296 self.L3cache = L3Cache() 297 self.L3cache.create(options, ruby_system, system) 298 299 self.l3_response_latency = max(self.L3cache.dataAccessLatency, self.L3cache.tagAccessLatency) 300 self.ruby_system = ruby_system 301 302 if options.recycle_latency: 303 self.recycle_latency = options.recycle_latency 304 305 def connectWireBuffers(self, req_to_dir, resp_to_dir, l3_unblock_to_dir, 306 req_to_l3, probe_to_l3, resp_to_l3): 307 self.reqToDir = req_to_dir 308 self.respToDir = resp_to_dir 309 self.l3UnblockToDir = l3_unblock_to_dir 310 self.reqToL3 = req_to_l3 311 self.probeToL3 = probe_to_l3 312 self.respToL3 = resp_to_l3 313 314class DirMem(RubyDirectoryMemory, CntrlBase): 315 def create(self, options, ruby_system, system): 316 self.version = self.versionCount() 317 318 phys_mem_size = AddrRange(options.mem_size).size() 319 mem_module_size = phys_mem_size / options.num_dirs 320 dir_size = MemorySize('0B') 321 dir_size.value = mem_module_size 322 self.size = dir_size 323 324class DirCntrl(Directory_Controller, CntrlBase): 325 def create(self, options, ruby_system, system): 326 self.version = self.versionCount() 327 328 self.response_latency = 30 329 330 self.directory = DirMem() 331 self.directory.create(options, ruby_system, system) 332 333 self.L3CacheMemory = L3Cache() 334 self.L3CacheMemory.create(options, ruby_system, system) 335 336 self.l3_hit_latency = max(self.L3CacheMemory.dataAccessLatency, 337 self.L3CacheMemory.tagAccessLatency) 338 339 self.number_of_TBEs = options.num_tbes 340 341 self.ruby_system = ruby_system 342 343 if options.recycle_latency: 344 self.recycle_latency = options.recycle_latency 345 346 def connectWireBuffers(self, req_to_dir, resp_to_dir, l3_unblock_to_dir, 347 req_to_l3, probe_to_l3, resp_to_l3): 348 self.reqToDir = req_to_dir 349 self.respToDir = resp_to_dir 350 self.l3UnblockToDir = l3_unblock_to_dir 351 self.reqToL3 = req_to_l3 352 self.probeToL3 = probe_to_l3 353 self.respToL3 = resp_to_l3 354 355def define_options(parser): 356 parser.add_option("--num-subcaches", type = "int", default = 4) 357 parser.add_option("--l3-data-latency", type = "int", default = 20) 358 parser.add_option("--l3-tag-latency", type = "int", default = 15) 359 parser.add_option("--cpu-to-dir-latency", type = "int", default = 120) 360 parser.add_option("--gpu-to-dir-latency", type = "int", default = 120) 361 parser.add_option("--no-resource-stalls", action = "store_false", 362 default = True) 363 parser.add_option("--no-tcc-resource-stalls", action = "store_false", 364 default = True) 365 parser.add_option("--use-L3-on-WT", action = "store_true", default = False) 366 parser.add_option("--num-tbes", type = "int", default = 256) 367 parser.add_option("--l2-latency", type = "int", default = 50) # load to use 368 parser.add_option("--num-tccs", type = "int", default = 1, 369 help = "number of TCC banks in the GPU") 370 parser.add_option("--sqc-size", type = 'string', default = '32kB', 371 help = "SQC cache size") 372 parser.add_option("--sqc-assoc", type = 'int', default = 8, 373 help = "SQC cache assoc") 374 parser.add_option("--WB_L1", action = "store_true", default = False, 375 help = "writeback L1") 376 parser.add_option("--WB_L2", action = "store_true", default = False, 377 help = "writeback L2") 378 parser.add_option("--TCP_latency", type = "int", default = 4, 379 help = "TCP latency") 380 parser.add_option("--TCC_latency", type = "int", default = 16, 381 help = "TCC latency") 382 parser.add_option("--tcc-size", type = 'string', default = '256kB', 383 help = "agregate tcc size") 384 parser.add_option("--tcc-assoc", type = 'int', default = 16, 385 help = "tcc assoc") 386 parser.add_option("--tcp-size", type = 'string', default = '16kB', 387 help = "tcp size") 388 parser.add_option("--tcp-assoc", type = 'int', default = 16, 389 help = "tcp assoc") 390 parser.add_option("--noL1", action = "store_true", default = False, 391 help = "bypassL1") 392 393def create_system(options, full_system, system, dma_devices, ruby_system): 394 if buildEnv['PROTOCOL'] != 'GPU_VIPER': 395 panic("This script requires the GPU_VIPER protocol to be built.") 396 397 cpu_sequencers = [] 398 399 # 400 # The ruby network creation expects the list of nodes in the system to be 401 # consistent with the NetDest list. Therefore the l1 controller nodes 402 # must be listed before the directory nodes and directory nodes before 403 # dma nodes, etc. 404 # 405 cp_cntrl_nodes = [] 406 tcp_cntrl_nodes = [] 407 sqc_cntrl_nodes = [] 408 tcc_cntrl_nodes = [] 409 dir_cntrl_nodes = [] 410 l3_cntrl_nodes = [] 411 412 # 413 # Must create the individual controllers before the network to ensure the 414 # controller constructors are called before the network constructor 415 # 416 417 # For an odd number of CPUs, still create the right number of controllers 418 TCC_bits = int(math.log(options.num_tccs, 2)) 419 420 # This is the base crossbar that connects the L3s, Dirs, and cpu/gpu 421 # Clusters 422 crossbar_bw = None 423 mainCluster = None 424 if hasattr(options, 'bw_scalor') and options.bw_scalor > 0: 425 #Assuming a 2GHz clock 426 crossbar_bw = 16 * options.num_compute_units * options.bw_scalor 427 mainCluster = Cluster(intBW=crossbar_bw) 428 else: 429 mainCluster = Cluster(intBW=8) # 16 GB/s 430 for i in xrange(options.num_dirs): 431 432 dir_cntrl = DirCntrl(noTCCdir = True, TCC_select_num_bits = TCC_bits) 433 dir_cntrl.create(options, ruby_system, system) 434 dir_cntrl.number_of_TBEs = options.num_tbes 435 dir_cntrl.useL3OnWT = options.use_L3_on_WT 436 # the number_of_TBEs is inclusive of TBEs below 437 438 # Connect the Directory controller to the ruby network 439 dir_cntrl.requestFromCores = MessageBuffer(ordered = True) 440 dir_cntrl.requestFromCores.slave = ruby_system.network.master 441 442 dir_cntrl.responseFromCores = MessageBuffer() 443 dir_cntrl.responseFromCores.slave = ruby_system.network.master 444 445 dir_cntrl.unblockFromCores = MessageBuffer() 446 dir_cntrl.unblockFromCores.slave = ruby_system.network.master 447 448 dir_cntrl.probeToCore = MessageBuffer() 449 dir_cntrl.probeToCore.master = ruby_system.network.slave 450 451 dir_cntrl.responseToCore = MessageBuffer() 452 dir_cntrl.responseToCore.master = ruby_system.network.slave 453 454 dir_cntrl.triggerQueue = MessageBuffer(ordered = True) 455 dir_cntrl.L3triggerQueue = MessageBuffer(ordered = True) 456 dir_cntrl.responseFromMemory = MessageBuffer() 457 458 exec("ruby_system.dir_cntrl%d = dir_cntrl" % i) 459 dir_cntrl_nodes.append(dir_cntrl) 460 461 mainCluster.add(dir_cntrl) 462 463 cpuCluster = None 464 if hasattr(options, 'bw_scalor') and options.bw_scalor > 0: 465 cpuCluster = Cluster(extBW = crossbar_bw, intBW = crossbar_bw) 466 else: 467 cpuCluster = Cluster(extBW = 8, intBW = 8) # 16 GB/s 468 for i in xrange((options.num_cpus + 1) / 2): 469 470 cp_cntrl = CPCntrl() 471 cp_cntrl.create(options, ruby_system, system) 472 473 exec("ruby_system.cp_cntrl%d = cp_cntrl" % i) 474 # 475 # Add controllers and sequencers to the appropriate lists 476 # 477 cpu_sequencers.extend([cp_cntrl.sequencer, cp_cntrl.sequencer1]) 478 479 # Connect the CP controllers and the network 480 cp_cntrl.requestFromCore = MessageBuffer() 481 cp_cntrl.requestFromCore.master = ruby_system.network.slave 482 483 cp_cntrl.responseFromCore = MessageBuffer() 484 cp_cntrl.responseFromCore.master = ruby_system.network.slave 485 486 cp_cntrl.unblockFromCore = MessageBuffer() 487 cp_cntrl.unblockFromCore.master = ruby_system.network.slave 488 489 cp_cntrl.probeToCore = MessageBuffer() 490 cp_cntrl.probeToCore.slave = ruby_system.network.master 491 492 cp_cntrl.responseToCore = MessageBuffer() 493 cp_cntrl.responseToCore.slave = ruby_system.network.master 494 495 cp_cntrl.mandatoryQueue = MessageBuffer() 496 cp_cntrl.triggerQueue = MessageBuffer(ordered = True) 497 498 cpuCluster.add(cp_cntrl) 499 500 gpuCluster = None 501 if hasattr(options, 'bw_scalor') and options.bw_scalor > 0: 502 gpuCluster = Cluster(extBW = crossbar_bw, intBW = crossbar_bw) 503 else: 504 gpuCluster = Cluster(extBW = 8, intBW = 8) # 16 GB/s 505 for i in xrange(options.num_compute_units): 506 507 tcp_cntrl = TCPCntrl(TCC_select_num_bits = TCC_bits, 508 issue_latency = 1, 509 number_of_TBEs = 2560) 510 # TBEs set to max outstanding requests 511 tcp_cntrl.create(options, ruby_system, system) 512 tcp_cntrl.WB = options.WB_L1 513 tcp_cntrl.disableL1 = options.noL1 514 tcp_cntrl.L1cache.tagAccessLatency = options.TCP_latency 515 tcp_cntrl.L1cache.dataAccessLatency = options.TCP_latency 516 517 exec("ruby_system.tcp_cntrl%d = tcp_cntrl" % i) 518 # 519 # Add controllers and sequencers to the appropriate lists 520 # 521 cpu_sequencers.append(tcp_cntrl.coalescer) 522 tcp_cntrl_nodes.append(tcp_cntrl) 523 524 # Connect the TCP controller to the ruby network 525 tcp_cntrl.requestFromTCP = MessageBuffer(ordered = True) 526 tcp_cntrl.requestFromTCP.master = ruby_system.network.slave 527 528 tcp_cntrl.responseFromTCP = MessageBuffer(ordered = True) 529 tcp_cntrl.responseFromTCP.master = ruby_system.network.slave 530 531 tcp_cntrl.unblockFromCore = MessageBuffer() 532 tcp_cntrl.unblockFromCore.master = ruby_system.network.slave 533 534 tcp_cntrl.probeToTCP = MessageBuffer(ordered = True) 535 tcp_cntrl.probeToTCP.slave = ruby_system.network.master 536 537 tcp_cntrl.responseToTCP = MessageBuffer(ordered = True) 538 tcp_cntrl.responseToTCP.slave = ruby_system.network.master 539 540 tcp_cntrl.mandatoryQueue = MessageBuffer() 541 542 gpuCluster.add(tcp_cntrl) 543 544 for i in xrange(options.num_sqc): 545 546 sqc_cntrl = SQCCntrl(TCC_select_num_bits = TCC_bits) 547 sqc_cntrl.create(options, ruby_system, system) 548 549 exec("ruby_system.sqc_cntrl%d = sqc_cntrl" % i) 550 # 551 # Add controllers and sequencers to the appropriate lists 552 # 553 cpu_sequencers.append(sqc_cntrl.sequencer) 554 555 # Connect the SQC controller to the ruby network 556 sqc_cntrl.requestFromSQC = MessageBuffer(ordered = True) 557 sqc_cntrl.requestFromSQC.master = ruby_system.network.slave 558 559 sqc_cntrl.probeToSQC = MessageBuffer(ordered = True) 560 sqc_cntrl.probeToSQC.slave = ruby_system.network.master 561 562 sqc_cntrl.responseToSQC = MessageBuffer(ordered = True) 563 sqc_cntrl.responseToSQC.slave = ruby_system.network.master 564 565 sqc_cntrl.mandatoryQueue = MessageBuffer() 566 567 # SQC also in GPU cluster 568 gpuCluster.add(sqc_cntrl) 569
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