configs/example/ruby_fs.py

   1 # Copyright (c) 2009-2011 Advanced Micro Devices, Inc.
   2 # All rights reserved.
   3 #
   4 # Redistribution and use in source and binary forms, with or without
   5 # modification, are permitted provided that the following conditions are
   6 # met: redistributions of source code must retain the above copyright
   7 # notice, this list of conditions and the following disclaimer;
   8 # redistributions in binary form must reproduce the above copyright
   9 # notice, this list of conditions and the following disclaimer in the
  10 # documentation and/or other materials provided with the distribution;
  11 # neither the name of the copyright holders nor the names of its
  12 # contributors may be used to endorse or promote products derived from
  13 # this software without specific prior written permission.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  16 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  17 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  18 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  19 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  20 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  21 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27 # Authors: Brad Beckmann
  28
  29 #
  30 # Full system configuraiton for ruby
  31 #
  32
  33 import os
  34 import optparse
  35 import sys
  36 from os.path import join as joinpath
  37
  38 import m5
  39 from m5.defines import buildEnv
  40 from m5.objects import *
  41 from m5.util import addToPath, panic
  42
  43 if not buildEnv['FULL_SYSTEM']:
  44     panic("This script requires full-system mode (*_FS).")
  45
  46 addToPath('../common')
  47 addToPath('../ruby')
  48
  49 import Ruby
  50
  51 from FSConfig import *
  52 from SysPaths import *
  53 from Benchmarks import *
  54 import Simulation
  55 from Caches import *
  56
  57 # Get paths we might need.  It's expected this file is in m5/configs/example.
  58 config_path = os.path.dirname(os.path.abspath(__file__))
  59 config_root = os.path.dirname(config_path)
  60 m5_root = os.path.dirname(config_root)
  61
  62 parser = optparse.OptionParser()
  63
  64 # Benchmark options
  65 parser.add_option("-b", "--benchmark", action="store", type="string",
  66                   dest="benchmark",
  67                   help="Specify the benchmark to run. Available benchmarks: %s"\
  68                   % DefinedBenchmarks)
  69 parser.add_option("-o", "--options", default="",
  70     help='The options to pass to the binary, use " " around the entire string')
  71 parser.add_option("-i", "--input", default="", help="Read stdin from a file.")
  72 parser.add_option("--output", default="", help="Redirect stdout to a file.")
  73 parser.add_option("--errout", default="", help="Redirect stderr to a file.")
  74
  75 #
  76 # Add the ruby specific and protocol specific options
  77 #
  78 Ruby.define_options(parser)
  79
  80 execfile(os.path.join(config_root, "common", "Options.py"))
  81
  82 (options, args) = parser.parse_args()
  83
  84 if args:
  85     print "Error: script doesn't take any positional arguments"
  86     sys.exit(1)
  87
  88 if options.benchmark:
  89     try:
  90         bm = Benchmarks[options.benchmark]
  91     except KeyError:
  92         print "Error benchmark %s has not been defined." % options.benchmark
  93         print "Valid benchmarks are: %s" % DefinedBenchmarks
  94         sys.exit(1)
  95 else:
  96     bm = [SysConfig()]
  97
  98 #
  99 # currently ruby fs only works in simple timing mode because ruby does not
 100 # support atomic accesses by devices.  Also ruby_fs currently assumes
 101 # that is running a checkpoints that were created by ALPHA_FS under atomic
 102 # mode.  Since switch cpus are not defined in these checkpoints, we don't
 103 # fast forward with the atomic cpu and instead set the FutureClass to None.
 104 # Therefore the cpus resolve to the correct names and unserialize correctly.
 105 #
 106 class CPUClass(TimingSimpleCPU): pass
 107 test_mem_mode = 'timing'
 108 FutureClass = None
 109
 110 CPUClass.clock = options.clock
 111
 112 if buildEnv['TARGET_ISA'] == "alpha":
 113     system = makeLinuxAlphaRubySystem(test_mem_mode, bm[0])
 114 elif buildEnv['TARGET_ISA'] == "x86":
 115     system = makeLinuxX86System(test_mem_mode, options.num_cpus, bm[0], True)
 116     setWorkCountOptions(system, options)
 117 else:
 118     fatal("incapable of building non-alpha or non-x86 full system!")
 119
 120 Ruby.create_system(options, system, system.piobus, system._dma_devices)
 121
 122 system.cpu = [CPUClass(cpu_id=i) for i in xrange(options.num_cpus)]
 123
 124 for (i, cpu) in enumerate(system.cpu):
 125     #
 126     # Tie the cpu ports to the correct ruby system ports
 127     #
 128     cpu.icache_port = system.ruby._cpu_ruby_ports[i].port
 129     cpu.dcache_port = system.ruby._cpu_ruby_ports[i].port
 130     if buildEnv['TARGET_ISA'] == "x86":
 131         cpu.itb.walker.port = system.ruby._cpu_ruby_ports[i].port
 132         cpu.dtb.walker.port = system.ruby._cpu_ruby_ports[i].port
 133         cpu.interrupts.pio = system.piobus.port
 134         cpu.interrupts.int_port = system.piobus.port
 135
 136 root = Root(system = system)
 137
 138 Simulation.run(options, root, system, FutureClass)