tests/configs/simple-timing-mp-ruby.py

   1 # Copyright (c) 2006-2007 The Regents of The University of Michigan
   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
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   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
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  19 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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  21 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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  25 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26 #
  27 # Authors: Ron Dreslinski
  28
  29 import m5
  30 from m5.objects import *
  31 from m5.defines import buildEnv
  32 from m5.util import addToPath
  33 import os, optparse, sys
  34
  35 if buildEnv['FULL_SYSTEM']:
  36     panic("This script requires system-emulation mode (*_SE).")
  37
  38 # Get paths we might need
  39 config_path = os.path.dirname(os.path.abspath(__file__))
  40 config_root = os.path.dirname(config_path)
  41 m5_root = os.path.dirname(config_root)
  42 addToPath(config_root+'/configs/common')
  43 addToPath(config_root+'/configs/ruby')
  44
  45 import Ruby
  46
  47 parser = optparse.OptionParser()
  48
  49 #
  50 # Add the ruby specific and protocol specific options
  51 #
  52 Ruby.define_options(parser)
  53
  54 execfile(os.path.join(config_root, "configs/common", "Options.py"))
  55
  56 (options, args) = parser.parse_args()
  57
  58 #
  59 # Set the default cache size and associativity to be very small to encourage
  60 # races between requests and writebacks.
  61 #
  62 options.l1d_size="256B"
  63 options.l1i_size="256B"
  64 options.l2_size="512B"
  65 options.l3_size="1kB"
  66 options.l1d_assoc=2
  67 options.l1i_assoc=2
  68 options.l2_assoc=2
  69 options.l3_assoc=2
  70
  71 nb_cores = 4
  72 cpus = [ TimingSimpleCPU(cpu_id=i) for i in xrange(nb_cores) ]
  73
  74 # overwrite the num_cpus to equal nb_cores
  75 options.num_cpus = nb_cores
  76
  77 # system simulated
  78 system = System(cpu = cpus, physmem = PhysicalMemory())
  79
  80 Ruby.create_system(options, system)
  81
  82 assert(options.num_cpus == len(system.ruby._cpu_ruby_ports))
  83
  84 for (i, cpu) in enumerate(system.cpu):
  85     #
  86     # Tie the cpu ports to the ruby cpu ports
  87     #
  88     cpu.icache_port = system.ruby._cpu_ruby_ports[i].port
  89     cpu.dcache_port = system.ruby._cpu_ruby_ports[i].port
  90
  91 # -----------------------
  92 # run simulation
  93 # -----------------------
  94
  95 root = Root( system = system )
  96 root.system.mem_mode = 'timing'
  97
  98 # Not much point in this being higher than the L1 latency
  99 m5.ticks.setGlobalFrequency('1ns')