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# Copyright (c) 2006-2007 The Regents of The University of Michigan
# All rights reserved.
#
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# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
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# redistributions in binary form must reproduce the above copyright
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# neither the name of the copyright holders nor the names of its
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# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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import m5
from m5.objects import *
m5.util.addToPath("../configs/")
from common.Caches import *
# MAX CORES IS 8 with the fals sharing method
nb_cores = 8
cpus = [MemTest() for i in range(nb_cores)]
# system simulated
system = System(
cpu=cpus,
physmem=SimpleMemory(),
membus=SystemXBar(width=16, snoop_filter=SnoopFilter()),
)
# Dummy voltage domain for all our clock domains
system.voltage_domain = VoltageDomain()
system.clk_domain = SrcClockDomain(
clock="1GHz", voltage_domain=system.voltage_domain
)
# Create a seperate clock domain for components that should run at
# CPUs frequency
system.cpu_clk_domain = SrcClockDomain(
clock="2GHz", voltage_domain=system.voltage_domain
)
system.toL2Bus = L2XBar(
clk_domain=system.cpu_clk_domain, snoop_filter=SnoopFilter()
)
system.l2c = L2Cache(clk_domain=system.cpu_clk_domain, size="64kB", assoc=8)
system.l2c.cpu_side = system.toL2Bus.mem_side_ports
# connect l2c to membus
system.l2c.mem_side = system.membus.cpu_side_ports
# add L1 caches
for cpu in cpus:
# All cpus are associated with cpu_clk_domain
cpu.clk_domain = system.cpu_clk_domain
cpu.l1c = L1Cache(size="32kB", assoc=4)
cpu.l1c.cpu_side = cpu.port
cpu.l1c.mem_side = system.toL2Bus.cpu_side_ports
system.system_port = system.membus.cpu_side_ports
# connect memory to membus
system.physmem.port = system.membus.mem_side_ports
# -----------------------
# run simulation
# -----------------------
root = Root(full_system=False, system=system)
root.system.mem_mode = "timing"