GPU_VIPER.py revision 11670:6ce719503eae 
1#
2#  Copyright (c) 2011-2015 Advanced Micro Devices, Inc.
3#  All rights reserved.
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5#  For use for simulation and test purposes only
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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 topologies.Cluster import Cluster
44from topologies.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
570    for i in xrange(options.num_cp):
571
572        tcp_ID = options.num_compute_units + i
573        sqc_ID = options.num_sqc + i
574
575        tcp_cntrl = TCPCntrl(TCC_select_num_bits = TCC_bits,
576                             issue_latency = 1,
577                             number_of_TBEs = 2560)
578        # TBEs set to max outstanding requests
579        tcp_cntrl.createCP(options, ruby_system, system)
580        tcp_cntrl.WB = options.WB_L1
581        tcp_cntrl.disableL1 = options.noL1
582        tcp_cntrl.L1cache.tagAccessLatency = options.TCP_latency
583        tcp_cntrl.L1cache.dataAccessLatency = options.TCP_latency
584
585        exec("ruby_system.tcp_cntrl%d = tcp_cntrl" % tcp_ID)
586        #
587        # Add controllers and sequencers to the appropriate lists
588        #
589        cpu_sequencers.append(tcp_cntrl.sequencer)
590        tcp_cntrl_nodes.append(tcp_cntrl)
591
592        # Connect the CP (TCP) controllers to the ruby network
593        tcp_cntrl.requestFromTCP = MessageBuffer(ordered = True)
594        tcp_cntrl.requestFromTCP.master = ruby_system.network.slave
595
596        tcp_cntrl.responseFromTCP = MessageBuffer(ordered = True)
597        tcp_cntrl.responseFromTCP.master = ruby_system.network.slave
598
599        tcp_cntrl.unblockFromCore = MessageBuffer(ordered = True)
600        tcp_cntrl.unblockFromCore.master = ruby_system.network.slave
601
602        tcp_cntrl.probeToTCP = MessageBuffer(ordered = True)
603        tcp_cntrl.probeToTCP.slave = ruby_system.network.master
604
605        tcp_cntrl.responseToTCP = MessageBuffer(ordered = True)
606        tcp_cntrl.responseToTCP.slave = ruby_system.network.master
607
608        tcp_cntrl.mandatoryQueue = MessageBuffer()
609
610        gpuCluster.add(tcp_cntrl)
611
612        sqc_cntrl = SQCCntrl(TCC_select_num_bits = TCC_bits)
613        sqc_cntrl.create(options, ruby_system, system)
614
615        exec("ruby_system.sqc_cntrl%d = sqc_cntrl" % sqc_ID)
616        #
617        # Add controllers and sequencers to the appropriate lists
618        #
619        cpu_sequencers.append(sqc_cntrl.sequencer)
620
621        # SQC also in GPU cluster
622        gpuCluster.add(sqc_cntrl)
623
624    for i in xrange(options.num_tccs):
625
626        tcc_cntrl = TCCCntrl(l2_response_latency = options.TCC_latency)
627        tcc_cntrl.create(options, ruby_system, system)
628        tcc_cntrl.l2_request_latency = options.gpu_to_dir_latency
629        tcc_cntrl.l2_response_latency = options.TCC_latency
630        tcc_cntrl_nodes.append(tcc_cntrl)
631        tcc_cntrl.WB = options.WB_L2
632        tcc_cntrl.number_of_TBEs = 2560 * options.num_compute_units
633        # the number_of_TBEs is inclusive of TBEs below
634
635        # Connect the TCC controllers to the ruby network
636        tcc_cntrl.requestFromTCP = MessageBuffer(ordered = True)
637        tcc_cntrl.requestFromTCP.slave = ruby_system.network.master
638
639        tcc_cntrl.responseToCore = MessageBuffer(ordered = True)
640        tcc_cntrl.responseToCore.master = ruby_system.network.slave
641
642        tcc_cntrl.probeFromNB = MessageBuffer()
643        tcc_cntrl.probeFromNB.slave = ruby_system.network.master
644
645        tcc_cntrl.responseFromNB = MessageBuffer()
646        tcc_cntrl.responseFromNB.slave = ruby_system.network.master
647
648        tcc_cntrl.requestToNB = MessageBuffer(ordered = True)
649        tcc_cntrl.requestToNB.master = ruby_system.network.slave
650
651        tcc_cntrl.responseToNB = MessageBuffer()
652        tcc_cntrl.responseToNB.master = ruby_system.network.slave
653
654        tcc_cntrl.unblockToNB = MessageBuffer()
655        tcc_cntrl.unblockToNB.master = ruby_system.network.slave
656
657        tcc_cntrl.triggerQueue = MessageBuffer(ordered = True)
658
659        exec("ruby_system.tcc_cntrl%d = tcc_cntrl" % i)
660
661        # connect all of the wire buffers between L3 and dirs up
662        # TCC cntrls added to the GPU cluster
663        gpuCluster.add(tcc_cntrl)
664
665    # Assuming no DMA devices
666    assert(len(dma_devices) == 0)
667
668    # Add cpu/gpu clusters to main cluster
669    mainCluster.add(cpuCluster)
670    mainCluster.add(gpuCluster)
671
672    ruby_system.network.number_of_virtual_networks = 10
673
674    return (cpu_sequencers, dir_cntrl_nodes, mainCluster)
675