configs/common/Options.py

   1 # Copyright (c) 2013-2019 ARM Limited
   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 # Copyright (c) 2006-2008 The Regents of The University of Michigan
  14 # All rights reserved.
  15 #
  16 # Redistribution and use in source and binary forms, with or without
  17 # modification, are permitted provided that the following conditions are
  18 # met: redistributions of source code must retain the above copyright
  19 # notice, this list of conditions and the following disclaimer;
  20 # redistributions in binary form must reproduce the above copyright
  21 # notice, this list of conditions and the following disclaimer in the
  22 # documentation and/or other materials provided with the distribution;
  23 # neither the name of the copyright holders nor the names of its
  24 # contributors may be used to endorse or promote products derived from
  25 # this software without specific prior written permission.
  26 #
  27 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  28 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  29 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  30 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  31 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  32 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  33 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  34 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  35 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  36 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  37 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38 #
  39 # Authors: Lisa Hsu
  40
  41 from __future__ import print_function
  42 from __future__ import absolute_import
  43
  44 import m5
  45 from m5.defines import buildEnv
  46 from m5.objects import *
  47
  48 from .Benchmarks import *
  49 from . import ObjectList
  50
  51 vio_9p_help = """\
  52 Enable the Virtio 9P device and set the path to share. The default 9p path is
  53 m5ou5/9p/share, and it can be changed by setting VirtIO9p.root with --param. A
  54 sample guest mount command is: "mount -t 9p -o
  55 trans=virtio,version=9p2000.L,aname=<host-full-path> gem5 /mnt/9p" where
  56 "<host-full-path>" is the full path being shared on the host, and "gem5" is a
  57 fixed mount tag. This option requires the diod 9P server to be installed in the
  58 host PATH or selected with with: VirtIO9PDiod.diod.
  59 """
  60
  61 def _listCpuTypes(option, opt, value, parser):
  62     ObjectList.cpu_list.print()
  63     sys.exit(0)
  64
  65 def _listBPTypes(option, opt, value, parser):
  66     ObjectList.bp_list.print()
  67     sys.exit(0)
  68
  69 def _listHWPTypes(option, opt, value, parser):
  70     ObjectList.hwp_list.print()
  71     sys.exit(0)
  72
  73 def _listIndirectBPTypes(option, opt, value, parser):
  74     ObjectList.indirect_bp_list.print()
  75     sys.exit(0)
  76
  77 def _listMemTypes(option, opt, value, parser):
  78     ObjectList.mem_list.print()
  79     sys.exit(0)
  80
  81 def _listPlatformTypes(option, opt, value, parser):
  82     ObjectList.platform_list.print()
  83     sys.exit(0)
  84
  85 # Add the very basic options that work also in the case of the no ISA
  86 # being used, and consequently no CPUs, but rather various types of
  87 # testers and traffic generators.
  88 def addNoISAOptions(parser):
  89     parser.add_option("-n", "--num-cpus", type="int", default=1)
  90     parser.add_option("--sys-voltage", action="store", type="string",
  91                       default='1.0V',
  92                       help = """Top-level voltage for blocks running at system
  93                       power supply""")
  94     parser.add_option("--sys-clock", action="store", type="string",
  95                       default='1GHz',
  96                       help = """Top-level clock for blocks running at system
  97                       speed""")
  98
  99     # Memory Options
 100     parser.add_option("--list-mem-types",
 101                       action="callback", callback=_listMemTypes,
 102                       help="List available memory types")
 103     parser.add_option("--mem-type", type="choice", default="DDR3_1600_8x8",
 104                       choices=ObjectList.mem_list.get_names(),
 105                       help = "type of memory to use")
 106     parser.add_option("--mem-channels", type="int", default=1,
 107                       help = "number of memory channels")
 108     parser.add_option("--mem-ranks", type="int", default=None,
 109                       help = "number of memory ranks per channel")
 110     parser.add_option("--mem-size", action="store", type="string",
 111                       default="512MB",
 112                       help="Specify the physical memory size (single memory)")
 113     parser.add_option("--enable-dram-powerdown", action="store_true",
 114                        help="Enable low-power states in DRAMCtrl")
 115
 116
 117     parser.add_option("--memchecker", action="store_true")
 118
 119     # Cache Options
 120     parser.add_option("--external-memory-system", type="string",
 121                       help="use external ports of this port_type for caches")
 122     parser.add_option("--tlm-memory", type="string",
 123                       help="use external port for SystemC TLM cosimulation")
 124     parser.add_option("--caches", action="store_true")
 125     parser.add_option("--l2cache", action="store_true")
 126     parser.add_option("--num-dirs", type="int", default=1)
 127     parser.add_option("--num-l2caches", type="int", default=1)
 128     parser.add_option("--num-l3caches", type="int", default=1)
 129     parser.add_option("--l1d_size", type="string", default="64kB")
 130     parser.add_option("--l1i_size", type="string", default="32kB")
 131     parser.add_option("--l2_size", type="string", default="2MB")
 132     parser.add_option("--l3_size", type="string", default="16MB")
 133     parser.add_option("--l1d_assoc", type="int", default=2)
 134     parser.add_option("--l1i_assoc", type="int", default=2)
 135     parser.add_option("--l2_assoc", type="int", default=8)
 136     parser.add_option("--l3_assoc", type="int", default=16)
 137     parser.add_option("--cacheline_size", type="int", default=64)
 138
 139     # Enable Ruby
 140     parser.add_option("--ruby", action="store_true")
 141
 142     # Run duration options
 143     parser.add_option("-m", "--abs-max-tick", type="int", default=m5.MaxTick,
 144                       metavar="TICKS", help="Run to absolute simulated tick "
 145                       "specified including ticks from a restored checkpoint")
 146     parser.add_option("--rel-max-tick", type="int", default=None,
 147                       metavar="TICKS", help="Simulate for specified number of"
 148                       " ticks relative to the simulation start tick (e.g. if "
 149                       "restoring a checkpoint)")
 150     parser.add_option("--maxtime", type="float", default=None,
 151                       help="Run to the specified absolute simulated time in "
 152                       "seconds")
 153     parser.add_option("-P", "--param", action="append", default=[],
 154         help="Set a SimObject parameter relative to the root node. "
 155              "An extended Python multi range slicing syntax can be used "
 156              "for arrays. For example: "
 157              "'system.cpu[0,1,3:8:2].max_insts_all_threads = 42' "
 158              "sets max_insts_all_threads for cpus 0, 1, 3, 5 and 7 "
 159              "Direct parameters of the root object are not accessible, "
 160              "only parameters of its children.")
 161
 162 # Add common options that assume a non-NULL ISA.
 163 def addCommonOptions(parser):
 164     # start by adding the base options that do not assume an ISA
 165     addNoISAOptions(parser)
 166
 167     # system options
 168     parser.add_option("--list-cpu-types",
 169                       action="callback", callback=_listCpuTypes,
 170                       help="List available CPU types")
 171     parser.add_option("--cpu-type", type="choice", default="AtomicSimpleCPU",
 172                       choices=ObjectList.cpu_list.get_names(),
 173                       help = "type of cpu to run with")
 174     parser.add_option("--list-bp-types",
 175                       action="callback", callback=_listBPTypes,
 176                       help="List available branch predictor types")
 177     parser.add_option("--list-indirect-bp-types",
 178                       action="callback", callback=_listIndirectBPTypes,
 179                       help="List available indirect branch predictor types")
 180     parser.add_option("--bp-type", type="choice", default=None,
 181                       choices=ObjectList.bp_list.get_names(),
 182                       help = """
 183                       type of branch predictor to run with
 184                       (if not set, use the default branch predictor of
 185                       the selected CPU)""")
 186     parser.add_option("--indirect-bp-type", type="choice",
 187                       default="SimpleIndirectPredictor",
 188                       choices=ObjectList.indirect_bp_list.get_names(),
 189                       help = "type of indirect branch predictor to run with")
 190     parser.add_option("--list-hwp-types",
 191                       action="callback", callback=_listHWPTypes,
 192                       help="List available hardware prefetcher types")
 193     parser.add_option("--l1i-hwp-type", type="choice", default=None,
 194                       choices=ObjectList.hwp_list.get_names(),
 195                       help = """
 196                       type of hardware prefetcher to use with the L1
 197                       instruction cache.
 198                       (if not set, use the default prefetcher of
 199                       the selected cache)""")
 200     parser.add_option("--l1d-hwp-type", type="choice", default=None,
 201                       choices=ObjectList.hwp_list.get_names(),
 202                       help = """
 203                       type of hardware prefetcher to use with the L1
 204                       data cache.
 205                       (if not set, use the default prefetcher of
 206                       the selected cache)""")
 207     parser.add_option("--l2-hwp-type", type="choice", default=None,
 208                       choices=ObjectList.hwp_list.get_names(),
 209                       help = """
 210                       type of hardware prefetcher to use with the L2 cache.
 211                       (if not set, use the default prefetcher of
 212                       the selected cache)""")
 213     parser.add_option("--checker", action="store_true");
 214     parser.add_option("--cpu-clock", action="store", type="string",
 215                       default='2GHz',
 216                       help="Clock for blocks running at CPU speed")
 217     parser.add_option("--smt", action="store_true", default=False,
 218                       help = """
 219                       Only used if multiple programs are specified. If true,
 220                       then the number of threads per cpu is same as the
 221                       number of programs.""")
 222     parser.add_option("--elastic-trace-en", action="store_true",
 223                       help="""Enable capture of data dependency and instruction
 224                       fetch traces using elastic trace probe.""")
 225     # Trace file paths input to trace probe in a capture simulation and input
 226     # to Trace CPU in a replay simulation
 227     parser.add_option("--inst-trace-file", action="store", type="string",
 228                       help="""Instruction fetch trace file input to
 229                       Elastic Trace probe in a capture simulation and
 230                       Trace CPU in a replay simulation""", default="")
 231     parser.add_option("--data-trace-file", action="store", type="string",
 232                       help="""Data dependency trace file input to
 233                       Elastic Trace probe in a capture simulation and
 234                       Trace CPU in a replay simulation""", default="")
 235
 236     parser.add_option("-l", "--lpae", action="store_true")
 237     parser.add_option("-V", "--virtualisation", action="store_true")
 238
 239     # dist-gem5 options
 240     parser.add_option("--dist", action="store_true",
 241                       help="Parallel distributed gem5 simulation.")
 242     parser.add_option("--dist-sync-on-pseudo-op", action="store_true",
 243                       help="Use a pseudo-op to start dist-gem5 synchronization.")
 244     parser.add_option("--is-switch", action="store_true",
 245                       help="Select the network switch simulator process for a"\
 246                       "distributed gem5 run")
 247     parser.add_option("--dist-rank", default=0, action="store", type="int",
 248                       help="Rank of this system within the dist gem5 run.")
 249     parser.add_option("--dist-size", default=0, action="store", type="int",
 250                       help="Number of gem5 processes within the dist gem5 run.")
 251     parser.add_option("--dist-server-name",
 252                       default="127.0.0.1",
 253                       action="store", type="string",
 254                       help="Name of the message server host\nDEFAULT: localhost")
 255     parser.add_option("--dist-server-port",
 256                       default=2200,
 257                       action="store", type="int",
 258                       help="Message server listen port\nDEFAULT: 2200")
 259     parser.add_option("--dist-sync-repeat",
 260                       default="0us",
 261                       action="store", type="string",
 262                       help="Repeat interval for synchronisation barriers among dist-gem5 processes\nDEFAULT: --ethernet-linkdelay")
 263     parser.add_option("--dist-sync-start",
 264                       default="5200000000000t",
 265                       action="store", type="string",
 266                       help="Time to schedule the first dist synchronisation barrier\nDEFAULT:5200000000000t")
 267     parser.add_option("--ethernet-linkspeed", default="10Gbps",
 268                         action="store", type="string",
 269                         help="Link speed in bps\nDEFAULT: 10Gbps")
 270     parser.add_option("--ethernet-linkdelay", default="10us",
 271                       action="store", type="string",
 272                       help="Link delay in seconds\nDEFAULT: 10us")
 273
 274     # Run duration options
 275     parser.add_option("-I", "--maxinsts", action="store", type="int",
 276                       default=None, help="""Total number of instructions to
 277                                             simulate (default: run forever)""")
 278     parser.add_option("--work-item-id", action="store", type="int",
 279                       help="the specific work id for exit & checkpointing")
 280     parser.add_option("--num-work-ids", action="store", type="int",
 281                       help="Number of distinct work item types")
 282     parser.add_option("--work-begin-cpu-id-exit", action="store", type="int",
 283                       help="exit when work starts on the specified cpu")
 284     parser.add_option("--work-end-exit-count", action="store", type="int",
 285                       help="exit at specified work end count")
 286     parser.add_option("--work-begin-exit-count", action="store", type="int",
 287                       help="exit at specified work begin count")
 288     parser.add_option("--init-param", action="store", type="int", default=0,
 289                       help="""Parameter available in simulation with m5
 290                               initparam""")
 291     parser.add_option("--initialize-only", action="store_true", default=False,
 292                       help="""Exit after initialization. Do not simulate time.
 293                               Useful when gem5 is run as a library.""")
 294
 295     # Simpoint options
 296     parser.add_option("--simpoint-profile", action="store_true",
 297                       help="Enable basic block profiling for SimPoints")
 298     parser.add_option("--simpoint-interval", type="int", default=10000000,
 299                       help="SimPoint interval in num of instructions")
 300     parser.add_option("--take-simpoint-checkpoints", action="store", type="string",
 301         help="<simpoint file,weight file,interval-length,warmup-length>")
 302     parser.add_option("--restore-simpoint-checkpoint", action="store_true",
 303         help="restore from a simpoint checkpoint taken with " +
 304              "--take-simpoint-checkpoints")
 305
 306     # Checkpointing options
 307     ###Note that performing checkpointing via python script files will override
 308     ###checkpoint instructions built into binaries.
 309     parser.add_option("--take-checkpoints", action="store", type="string",
 310         help="<M,N> take checkpoints at tick M and every N ticks thereafter")
 311     parser.add_option("--max-checkpoints", action="store", type="int",
 312         help="the maximum number of checkpoints to drop", default=5)
 313     parser.add_option("--checkpoint-dir", action="store", type="string",
 314         help="Place all checkpoints in this absolute directory")
 315     parser.add_option("-r", "--checkpoint-restore", action="store", type="int",
 316         help="restore from checkpoint <N>")
 317     parser.add_option("--checkpoint-at-end", action="store_true",
 318                       help="take a checkpoint at end of run")
 319     parser.add_option("--work-begin-checkpoint-count", action="store", type="int",
 320                       help="checkpoint at specified work begin count")
 321     parser.add_option("--work-end-checkpoint-count", action="store", type="int",
 322                       help="checkpoint at specified work end count")
 323     parser.add_option("--work-cpus-checkpoint-count", action="store", type="int",
 324                       help="checkpoint and exit when active cpu count is reached")
 325     parser.add_option("--restore-with-cpu", action="store", type="choice",
 326                       default="AtomicSimpleCPU",
 327                       choices=ObjectList.cpu_list.get_names(),
 328                       help = "cpu type for restoring from a checkpoint")
 329
 330
 331     # CPU Switching - default switch model goes from a checkpoint
 332     # to a timing simple CPU with caches to warm up, then to detailed CPU for
 333     # data measurement
 334     parser.add_option("--repeat-switch", action="store", type="int",
 335         default=None,
 336         help="switch back and forth between CPUs with period <N>")
 337     parser.add_option("-s", "--standard-switch", action="store", type="int",
 338         default=None,
 339         help="switch from timing to Detailed CPU after warmup period of <N>")
 340     parser.add_option("-p", "--prog-interval", type="str",
 341         help="CPU Progress Interval")
 342
 343     # Fastforwarding and simpoint related materials
 344     parser.add_option("-W", "--warmup-insts", action="store", type="int",
 345         default=None,
 346         help="Warmup period in total instructions (requires --standard-switch)")
 347     parser.add_option("--bench", action="store", type="string", default=None,
 348         help="base names for --take-checkpoint and --checkpoint-restore")
 349     parser.add_option("-F", "--fast-forward", action="store", type="string",
 350         default=None,
 351         help="Number of instructions to fast forward before switching")
 352     parser.add_option("-S", "--simpoint", action="store_true", default=False,
 353         help="""Use workload simpoints as an instruction offset for
 354                 --checkpoint-restore or --take-checkpoint.""")
 355     parser.add_option("--at-instruction", action="store_true", default=False,
 356         help="""Treat value of --checkpoint-restore or --take-checkpoint as a
 357                 number of instructions.""")
 358     parser.add_option("--spec-input", default="ref", type="choice",
 359                       choices=["ref", "test", "train", "smred", "mdred",
 360                                "lgred"],
 361                       help="Input set size for SPEC CPU2000 benchmarks.")
 362     parser.add_option("--arm-iset", default="arm", type="choice",
 363                       choices=["arm", "thumb", "aarch64"],
 364                       help="ARM instruction set.")
 365
 366
 367 def addSEOptions(parser):
 368     # Benchmark options
 369     parser.add_option("-c", "--cmd", default="",
 370                       help="The binary to run in syscall emulation mode.")
 371     parser.add_option("-o", "--options", default="",
 372                       help="""The options to pass to the binary, use " "
 373                               around the entire string""")
 374     parser.add_option("-e", "--env", default="",
 375                       help="Initialize workload environment from text file.")
 376     parser.add_option("-i", "--input", default="",
 377                       help="Read stdin from a file.")
 378     parser.add_option("--output", default="",
 379                       help="Redirect stdout to a file.")
 380     parser.add_option("--errout", default="",
 381                       help="Redirect stderr to a file.")
 382     parser.add_option("--chroot", action="store", type="string", default=None,
 383                       help="The chroot option allows a user to alter the "    \
 384                            "search path for processes running in SE mode. "   \
 385                            "Normally, the search path would begin at the "    \
 386                            "root of the filesystem (i.e. /). With chroot, "   \
 387                            "a user can force the process to begin looking at" \
 388                            "some other location (i.e. /home/user/rand_dir)."  \
 389                            "The intended use is to trick sophisticated "      \
 390                            "software which queries the __HOST__ filesystem "  \
 391                            "for information or functionality. Instead of "    \
 392                            "finding files on the __HOST__ filesystem, the "   \
 393                            "process will find the user's replacment files.")
 394     parser.add_option("--interp-dir", action="store", type="string",
 395                       default=None,
 396                       help="The interp-dir option is used for "
 397                            "setting the interpreter's path. This will "
 398                            "allow to load the guest dynamic linker/loader "
 399                            "itself from the elf binary. The option points to "
 400                            "the parent folder of the guest /lib in the "
 401                            "host fs")
 402
 403     parser.add_option("--redirects", action="append", type="string",
 404                       default=[],
 405                       help="A collection of one or more redirect paths "
 406                            "to be used in syscall emulation."
 407                            "Usage: gem5.opt [...] --redirects /dir1=/path/"
 408                            "to/host/dir1 --redirects /dir2=/path/to/host/dir2")
 409
 410
 411
 412 def addFSOptions(parser):
 413     from .FSConfig import os_types
 414
 415     # Simulation options
 416     parser.add_option("--timesync", action="store_true",
 417             help="Prevent simulated time from getting ahead of real time")
 418
 419     # System options
 420     parser.add_option("--kernel", action="store", type="string")
 421     parser.add_option("--os-type", action="store", type="choice",
 422                       choices=os_types[str(buildEnv['TARGET_ISA'])],
 423                       default="linux",
 424                       help="Specifies type of OS to boot")
 425     parser.add_option("--script", action="store", type="string")
 426     parser.add_option("--frame-capture", action="store_true",
 427             help="Stores changed frame buffers from the VNC server to compressed "\
 428             "files in the gem5 output directory")
 429
 430     if buildEnv['TARGET_ISA'] == "arm":
 431         parser.add_option("--bare-metal", action="store_true",
 432                    help="Provide the raw system without the linux specific bits")
 433         parser.add_option("--list-machine-types",
 434                           action="callback", callback=_listPlatformTypes,
 435                       help="List available platform types")
 436         parser.add_option("--machine-type", action="store", type="choice",
 437                 choices=ObjectList.platform_list.get_names(),
 438                 default="VExpress_EMM")
 439         parser.add_option("--dtb-filename", action="store", type="string",
 440               help="Specifies device tree blob file to use with device-tree-"\
 441               "enabled kernels")
 442         parser.add_option("--enable-security-extensions", action="store_true",
 443               help="Turn on the ARM Security Extensions")
 444         parser.add_option("--enable-context-switch-stats-dump", \
 445                 action="store_true", help="Enable stats dump at context "\
 446                 "switches and dump tasks file (required for Streamline)")
 447         parser.add_option("--vio-9p", action="store_true", help=vio_9p_help)
 448
 449     # Benchmark options
 450     parser.add_option("--dual", action="store_true",
 451                       help="Simulate two systems attached with an ethernet link")
 452     parser.add_option("-b", "--benchmark", action="store", type="string",
 453                       dest="benchmark",
 454                       help="Specify the benchmark to run. Available benchmarks: %s"\
 455                       % DefinedBenchmarks)
 456
 457     # Metafile options
 458     parser.add_option("--etherdump", action="store", type="string", dest="etherdump",
 459                       help="Specify the filename to dump a pcap capture of the" \
 460                       "ethernet traffic")
 461
 462     # Disk Image Options
 463     parser.add_option("--disk-image", action="store", type="string", default=None,
 464                       help="Path to the disk image to use.")
 465     parser.add_option("--root-device", action="store", type="string", default=None,
 466                       help="OS device name for root partition")
 467
 468     # Command line options
 469     parser.add_option("--command-line", action="store", type="string",
 470                       default=None,
 471                       help="Template for the kernel command line.")
 472     parser.add_option("--command-line-file", action="store",
 473                       default=None, type="string",
 474                       help="File with a template for the kernel command line")