tests/configs/memtest.py

# Copyright (c) 2006-2007 The Regents of The University of Michigan
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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())
# 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)
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"