gem5/tests/configs/tsunami-o3.py
Andreas Hansson 3cf733bcc0 Regression: Use addTwoLevelCacheHierarchy in configs
This patch unifies the full-system regression config scripts and uses
the BaseCPU convenience method addTwoLevelCacheHierarchy to connect up
the L1s and L2, and create the bus inbetween.

The patch is a step on the way to use the clock period to express the
cache latencies, as the CPU is now the parent of the L1, L2 and L1-L2
bus, and these modules thus use the CPU clock.

The patch does not change the value of any stats, but plenty names,
and a follow-up patch contains the update to the stats, chaning
system.l2c to system.cpu.l2cache.
2012-10-15 08:07:09 -04:00

99 lines
3.1 KiB
Python

# Copyright (c) 2006-2007 The Regents of The University of Michigan
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# Authors: Steve Reinhardt
import m5
from m5.objects import *
m5.util.addToPath('../configs/common')
import FSConfig
# --------------------
# Base L1 Cache
# ====================
class L1(BaseCache):
hit_latency = '1ns'
response_latency = '1ns'
block_size = 64
mshrs = 4
tgts_per_mshr = 20
is_top_level = True
# ----------------------
# Base L2 Cache
# ----------------------
class L2(BaseCache):
block_size = 64
hit_latency = '10ns'
response_latency = '10ns'
mshrs = 92
tgts_per_mshr = 16
write_buffers = 8
# ---------------------
# I/O Cache
# ---------------------
class IOCache(BaseCache):
assoc = 8
block_size = 64
hit_latency = '50ns'
response_latency = '50ns'
mshrs = 20
size = '1kB'
tgts_per_mshr = 12
addr_ranges = [AddrRange(0, size='8GB')]
forward_snoops = False
is_top_level = True
#cpu
cpu = DerivO3CPU(cpu_id=0)
#the system
system = FSConfig.makeLinuxAlphaSystem('timing')
system.cpu = cpu
#create the iocache
system.iocache = IOCache()
system.iocache.cpu_side = system.iobus.master
system.iocache.mem_side = system.membus.slave
#connect up the cpu and caches
cpu.addTwoLevelCacheHierarchy(L1(size = '32kB', assoc = 1),
L1(size = '32kB', assoc = 4),
L2(size = '4MB', assoc = 8))
# create the interrupt controller
cpu.createInterruptController()
# connect cpu and caches to the rest of the system
cpu.connectAllPorts(system.membus)
# set the cpu clock along with the caches and l1-l2 bus
cpu.clock = '2GHz'
root = Root(full_system=True, system=system)
m5.ticks.setGlobalFrequency('1THz')