# Copyright (c) 2006-2007 The Regents of The University of Michigan # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer; # redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution; # neither the name of the copyright holders nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # # Authors: Steve Reinhardt import m5 from m5.objects import * m5.util.addToPath('../configs/common') from Benchmarks import SysConfig import FSConfig mem_size = '128MB' # -------------------- # Base L1 Cache # ==================== class L1(BaseCache): latency = '1ns' block_size = 64 mshrs = 4 tgts_per_mshr = 8 is_top_level = True # ---------------------- # Base L2 Cache # ---------------------- class L2(BaseCache): block_size = 64 latency = '10ns' mshrs = 92 tgts_per_mshr = 16 write_buffers = 8 # --------------------- # Page table walker cache # --------------------- class PageTableWalkerCache(BaseCache): assoc = 2 block_size = 64 latency = '1ns' mshrs = 10 size = '1kB' tgts_per_mshr = 12 # --------------------- # I/O Cache # --------------------- class IOCache(BaseCache): assoc = 8 block_size = 64 latency = '50ns' mshrs = 20 size = '1kB' tgts_per_mshr = 12 addr_range = AddrRange(0, size=mem_size) forward_snoops = False #cpu cpu = TimingSimpleCPU(cpu_id=0) #the system mdesc = SysConfig(disk = 'linux-x86.img') system = FSConfig.makeLinuxX86System('timing', mdesc = mdesc) system.kernel = FSConfig.binary('x86_64-vmlinux-2.6.22.9') system.cpu = cpu #create the l1/l2 bus system.toL2Bus = Bus() system.bridge.filter_ranges_a = [AddrRange(0, Addr.max >> 4)] system.bridge.filter_ranges_b = [AddrRange(0, size=mem_size)] system.iocache = IOCache(addr_range=mem_size) system.iocache.cpu_side = system.iobus.port system.iocache.mem_side = system.membus.port #connect up the l2 cache system.l2c = L2(size='4MB', assoc=8) system.l2c.cpu_side = system.toL2Bus.port system.l2c.mem_side = system.membus.port #connect up the cpu and l1s cpu.addPrivateSplitL1Caches(L1(size = '32kB', assoc = 1), L1(size = '32kB', assoc = 4), PageTableWalkerCache(), PageTableWalkerCache()) # connect cpu level-1 caches to shared level-2 cache cpu.connectAllPorts(system.toL2Bus, system.membus) cpu.clock = '2GHz' root = Root(system=system) m5.ticks.setGlobalFrequency('1THz')