gem5/tests/configs/o3-timing-mp.py

# Copyright (c) 2006-2007 The Regents of The University of Michigan
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# Authors: Ron Dreslinski

import m5
from m5.objects import *
m5.util.addToPath('../configs/common')
from Caches import *

nb_cores = 4
cpus = [ DerivO3CPU(cpu_id=i) for i in xrange(nb_cores) ]

# system simulated
system = System(cpu = cpus, physmem = SimpleDRAM(), membus = CoherentBus())

# l2cache & bus
system.toL2Bus = CoherentBus(clock = '2GHz')
system.l2c = L2Cache(clock = '2GHz', size='4MB', assoc=8)
system.l2c.cpu_side = system.toL2Bus.master

# connect l2c to membus
system.l2c.mem_side = system.membus.slave

# add L1 caches
for cpu in cpus:
    cpu.addPrivateSplitL1Caches(L1Cache(size = '32kB', assoc = 1),
                                L1Cache(size = '32kB', assoc = 4))
    # create the interrupt controller
    cpu.createInterruptController()
    # connect cpu level-1 caches to shared level-2 cache
    cpu.connectAllPorts(system.toL2Bus, system.membus)
    cpu.clock = '2GHz'

# connect memory to membus
system.physmem.port = system.membus.master

# connect system port to membus
system.system_port = system.membus.slave

# -----------------------
# run simulation
# -----------------------

root = Root( full_system = False, system = system )
root.system.mem_mode = 'timing'
#root.trace.flags="Bus Cache"
#root.trace.flags = "BusAddrRanges"