2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license 9# terms below provided that you ensure that this notice is replicated 10# unmodified and in its entirety in all distributions of the software, 11# modified or unmodified, in source code or in binary form. 12# 13# Redistribution and use in source and binary forms, with or without 14# modification, are permitted provided that the following conditions are 15# met: redistributions of source code must retain the above copyright 16# notice, this list of conditions and the following disclaimer; 17# redistributions in binary form must reproduce the above copyright 18# notice, this list of conditions and the following disclaimer in the 19# documentation and/or other materials provided with the distribution; 20# neither the name of the copyright holders nor the names of its 21# contributors may be used to endorse or promote products derived from 22# this software without specific prior written permission. 23# 24# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 25# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 26# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 27# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 28# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 29# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 30# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 31# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 32# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 33# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 34# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 35# 36# Authors: Gabor Dozsa 37 38# This configuration file extends the example ARM big.LITTLE(tm) 39# configuration to enabe dist-gem5 siulations of big.LITTLE systems. 40 41import argparse 42import os 43 44import m5 45from m5.objects import * 46 47import fs_bigLITTLE as bL 48m5.util.addToPath("../../dist") 49import sw 50 51 52def addOptions(parser): 53 # Options for distributed simulation (i.e. dist-gem5) 54 parser.add_argument("--dist", action="store_true", help="Distributed gem5"\ 55 " simulation.") 56 parser.add_argument("--is-switch", action="store_true", 57 help="Select the network switch simulator process for"\ 58 " a distributed gem5 run.") 59 parser.add_argument("--dist-rank", default=0, action="store", type=int, 60 help="Rank of this system within the dist gem5 run.") 61 parser.add_argument("--dist-size", default=0, action="store", type=int, 62 help="Number of gem5 processes within the dist gem5"\ 63 " run.") 64 parser.add_argument("--dist-server-name", 65 default="127.0.0.1", 66 action="store", type=str, 67 help="Name of the message server host\nDEFAULT:"\ 68 " localhost") 69 parser.add_argument("--dist-server-port", 70 default=2200, 71 action="store", type=int, 72 help="Message server listen port\nDEFAULT: 2200") 73 parser.add_argument("--dist-sync-repeat", 74 default="0us", 75 action="store", type=str, 76 help="Repeat interval for synchronisation barriers"\ 77 " among dist-gem5 processes\nDEFAULT:"\ 78 " --ethernet-linkdelay") 79 parser.add_argument("--dist-sync-start", 80 default="1000000000000t", 81 action="store", type=str, 82 help="Time to schedule the first dist synchronisation"\ 83 " barrier\nDEFAULT:1000000000000t") 84 parser.add_argument("--ethernet-linkspeed", default="10Gbps", 85 action="store", type=str, 86 help="Link speed in bps\nDEFAULT: 10Gbps") 87 parser.add_argument("--ethernet-linkdelay", default="10us", 88 action="store", type=str, 89 help="Link delay in seconds\nDEFAULT: 10us") 90 parser.add_argument("--etherdump", action="store", type=str, default="", 91 help="Specify the filename to dump a pcap capture of"\ 92 " the ethernet traffic") 93 # Used by util/dist/gem5-dist.sh 94 parser.add_argument("--checkpoint-dir", type=str, 95 default=m5.options.outdir, 96 help="Directory to save/read checkpoints") 97 98 99def addEthernet(system, options): 100 # create NIC 101 dev = IGbE_e1000() 102 system.attach_pci(dev) 103 system.ethernet = dev 104 105 # create distributed ethernet link 106 system.etherlink = DistEtherLink(speed = options.ethernet_linkspeed, 107 delay = options.ethernet_linkdelay, 108 dist_rank = options.dist_rank, 109 dist_size = options.dist_size, 110 server_name = options.dist_server_name, 111 server_port = options.dist_server_port, 112 sync_start = options.dist_sync_start, 113 sync_repeat = options.dist_sync_repeat) 114 system.etherlink.int0 = Parent.system.ethernet.interface 115 if options.etherdump: 116 system.etherdump = EtherDump(file=options.etherdump) 117 system.etherlink.dump = system.etherdump 118 119 120def main(): 121 parser = argparse.ArgumentParser( 122 description="Generic ARM big.LITTLE configuration with "\ 123 "dist-gem5 support") 124 bL.addOptions(parser) 125 addOptions(parser) 126 options = parser.parse_args() 127 128 if options.is_switch: 129 root = Root(full_system = True, 130 system = sw.build_switch(options)) 131 else: 132 root = bL.build(options) 133 addEthernet(root.system, options) 134
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