aca869bf2d
Over the past 6 years, we realized that the protocol is essentially used to run the garnet network in a standalone manner, and feed standard synthetic traffic patterns through it.
130 lines
5 KiB
Python
130 lines
5 KiB
Python
# Copyright (c) 2009 Advanced Micro Devices, Inc.
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# Copyright (c) 2016 Georgia Institute of Technology
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Brad Beckmann
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# Tushar Krishna
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import m5
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from m5.objects import *
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from m5.defines import buildEnv
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from m5.util import addToPath
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from Ruby import create_topology
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#
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# Declare caches used by the protocol
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#
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class L1Cache(RubyCache): pass
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def define_options(parser):
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return
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def create_system(options, full_system, system, dma_ports, ruby_system):
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if buildEnv['PROTOCOL'] != 'Garnet_standalone':
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panic("This script requires Garnet_standalone protocol to be built.")
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cpu_sequencers = []
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#
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# The Garnet_standalone protocol does not support fs nor dma
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#
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assert(dma_ports == [])
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#
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# The ruby network creation expects the list of nodes in the system to be
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# consistent with the NetDest list.
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# Therefore the l1 controller nodes must be listed before
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# the directory nodes and directory nodes before dma nodes, etc.
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l1_cntrl_nodes = []
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dir_cntrl_nodes = []
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#
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# Must create the individual controllers before the network to ensure the
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# controller constructors are called before the network constructor
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#
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for i in xrange(options.num_cpus):
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#
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# First create the Ruby objects associated with this cpu
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# Only one cache exists for this protocol, so by default use the L1D
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# config parameters.
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#
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cache = L1Cache(size = options.l1d_size,
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assoc = options.l1d_assoc)
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#
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# Only one unified L1 cache exists. Can cache instructions and data.
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#
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l1_cntrl = L1Cache_Controller(version = i,
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cacheMemory = cache,
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ruby_system = ruby_system)
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cpu_seq = RubySequencer(icache = cache,
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dcache = cache,
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garnet_standalone = True,
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ruby_system = ruby_system)
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l1_cntrl.sequencer = cpu_seq
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exec("ruby_system.l1_cntrl%d = l1_cntrl" % i)
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# Add controllers and sequencers to the appropriate lists
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cpu_sequencers.append(cpu_seq)
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l1_cntrl_nodes.append(l1_cntrl)
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# Connect the L1 controllers and the network
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l1_cntrl.mandatoryQueue = MessageBuffer()
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l1_cntrl.requestFromCache = MessageBuffer()
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l1_cntrl.responseFromCache = MessageBuffer()
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l1_cntrl.forwardFromCache = MessageBuffer()
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phys_mem_size = sum(map(lambda r: r.size(), system.mem_ranges))
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assert(phys_mem_size % options.num_dirs == 0)
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mem_module_size = phys_mem_size / options.num_dirs
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for i in xrange(options.num_dirs):
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dir_size = MemorySize('0B')
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dir_size.value = mem_module_size
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dir_cntrl = Directory_Controller(version = i,
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directory = \
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RubyDirectoryMemory(version = i,
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size = dir_size),
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ruby_system = ruby_system)
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exec("ruby_system.dir_cntrl%d = dir_cntrl" % i)
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dir_cntrl_nodes.append(dir_cntrl)
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# Connect the directory controllers and the network
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dir_cntrl.requestToDir = MessageBuffer()
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dir_cntrl.forwardToDir = MessageBuffer()
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dir_cntrl.responseToDir = MessageBuffer()
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all_cntrls = l1_cntrl_nodes + dir_cntrl_nodes
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ruby_system.network.number_of_virtual_networks = 3
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topology = create_topology(all_cntrls, options)
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return (cpu_sequencers, dir_cntrl_nodes, topology)
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