--- /dev/null
+# Copyright (c) 2016 ARM Limited
+# All rights reserved.
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder. You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met: redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer;
+# redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution;
+# neither the name of the copyright holders nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Authors: Gabor Dozsa
+
+# This configuration file extends the example ARM big.LITTLE(tm)
+# configuration to enabe dist-gem5 siulations of big.LITTLE systems.
+
+import argparse
+import os
+
+import m5
+from m5.objects import *
+
+import fs_bigLITTLE as bL
+m5.util.addToPath("../../dist")
+import sw
+
+
+def addOptions(parser):
+ # Options for distributed simulation (i.e. dist-gem5)
+ parser.add_argument("--dist", action="store_true", help="Distributed gem5"\
+ " simulation.")
+ parser.add_argument("--is-switch", action="store_true",
+ help="Select the network switch simulator process for"\
+ " a distributed gem5 run.")
+ parser.add_argument("--dist-rank", default=0, action="store", type=int,
+ help="Rank of this system within the dist gem5 run.")
+ parser.add_argument("--dist-size", default=0, action="store", type=int,
+ help="Number of gem5 processes within the dist gem5"\
+ " run.")
+ parser.add_argument("--dist-server-name",
+ default="127.0.0.1",
+ action="store", type=str,
+ help="Name of the message server host\nDEFAULT:"\
+ " localhost")
+ parser.add_argument("--dist-server-port",
+ default=2200,
+ action="store", type=int,
+ help="Message server listen port\nDEFAULT: 2200")
+ parser.add_argument("--dist-sync-repeat",
+ default="0us",
+ action="store", type=str,
+ help="Repeat interval for synchronisation barriers"\
+ " among dist-gem5 processes\nDEFAULT:"\
+ " --ethernet-linkdelay")
+ parser.add_argument("--dist-sync-start",
+ default="1000000000000t",
+ action="store", type=str,
+ help="Time to schedule the first dist synchronisation"\
+ " barrier\nDEFAULT:1000000000000t")
+ parser.add_argument("--ethernet-linkspeed", default="10Gbps",
+ action="store", type=str,
+ help="Link speed in bps\nDEFAULT: 10Gbps")
+ parser.add_argument("--ethernet-linkdelay", default="10us",
+ action="store", type=str,
+ help="Link delay in seconds\nDEFAULT: 10us")
+ parser.add_argument("--etherdump", action="store", type=str, default="",
+ help="Specify the filename to dump a pcap capture of"\
+ " the ethernet traffic")
+ # Used by util/dist/gem5-dist.sh
+ parser.add_argument("--checkpoint-dir", type=str,
+ default=m5.options.outdir,
+ help="Directory to save/read checkpoints")
+
+
+def addEthernet(system, options):
+ # create NIC
+ dev = IGbE_e1000()
+ system.attach_pci(dev)
+ system.ethernet = dev
+
+ # create distributed ethernet link
+ system.etherlink = DistEtherLink(speed = options.ethernet_linkspeed,
+ delay = options.ethernet_linkdelay,
+ dist_rank = options.dist_rank,
+ dist_size = options.dist_size,
+ server_name = options.dist_server_name,
+ server_port = options.dist_server_port,
+ sync_start = options.dist_sync_start,
+ sync_repeat = options.dist_sync_repeat)
+ system.etherlink.int0 = Parent.system.ethernet.interface
+ if options.etherdump:
+ system.etherdump = EtherDump(file=options.etherdump)
+ system.etherlink.dump = system.etherdump
+
+
+def main():
+ parser = argparse.ArgumentParser(
+ description="Generic ARM big.LITTLE configuration with "\
+ "dist-gem5 support")
+ bL.addOptions(parser)
+ addOptions(parser)
+ options = parser.parse_args()
+
+ if options.is_switch:
+ root = Root(full_system = True,
+ system = sw.build_switch(options))
+ else:
+ root = bL.build(options)
+ addEthernet(root.system, options)
+
+ if options.restore_from:
+ checkpoint_path = os.path.join(options.checkpoint_dir,
+ options.restore_from)
+ else:
+ checkpoint_path = None
+ bL.instantiate(checkpoint_path)
+ bL.run(options.checkpoint_dir)
+
+
+if __name__ == "__m5_main__":
+ main()
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