1# Copyright (c) 2006-2007 The Regents of The University of Michigan 2# All rights reserved. 3# 4# Redistribution and use in source and binary forms, with or without 5# modification, are permitted provided that the following conditions are 6# met: redistributions of source code must retain the above copyright 7# notice, this list of conditions and the following disclaimer; 8# redistributions in binary form must reproduce the above copyright 9# notice, this list of conditions and the following disclaimer in the 10# documentation and/or other materials provided with the distribution; 11# neither the name of the copyright holders nor the names of its 12# contributors may be used to endorse or promote products derived from 13# this software without specific prior written permission. 14# 15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26# 27# Authors: Steve Reinhardt 28 29import m5 30from m5.objects import * 31m5.util.addToPath('../configs/common') 32from Benchmarks import SysConfig 33import FSConfig 34 35mem_size = '128MB' 36 37# -------------------- 38# Base L1 Cache 39# ==================== 40 41class L1(BaseCache): 42 latency = '1ns' 43 block_size = 64 44 mshrs = 4 45 tgts_per_mshr = 8 46 is_top_level = True 47 48# ---------------------- 49# Base L2 Cache 50# ---------------------- 51 52class L2(BaseCache): 53 block_size = 64 54 latency = '10ns' 55 mshrs = 92 56 tgts_per_mshr = 16 57 write_buffers = 8 58 59# --------------------- 60# Page table walker cache 61# --------------------- 62class PageTableWalkerCache(BaseCache): 63 assoc = 2 64 block_size = 64 65 latency = '1ns' 66 mshrs = 10 67 size = '1kB' 68 tgts_per_mshr = 12 69 is_top_level = True 70 71# --------------------- 72# I/O Cache 73# --------------------- 74class IOCache(BaseCache): 75 assoc = 8 76 block_size = 64 77 latency = '50ns' 78 mshrs = 20 79 size = '1kB' 80 tgts_per_mshr = 12 81 addr_range = AddrRange(0, size=mem_size) 82 forward_snoops = False 83 is_top_level = True 84 85#cpu 86cpu = AtomicSimpleCPU(cpu_id=0) 87#the system 88mdesc = SysConfig(disk = 'linux-x86.img') 89system = FSConfig.makeLinuxX86System('atomic', mdesc=mdesc) 90system.kernel = FSConfig.binary('x86_64-vmlinux-2.6.22.9') 91system.iocache = IOCache(addr_range=mem_size) 92system.iocache.cpu_side = system.iobus.port 93system.iocache.mem_side = system.membus.port 94 95system.cpu = cpu 96#create the l1/l2 bus 97system.toL2Bus = Bus() 98 99#connect up the l2 cache 100system.l2c = L2(size='4MB', assoc=8) 101system.l2c.cpu_side = system.toL2Bus.port 102system.l2c.mem_side = system.membus.port 103 104#connect up the cpu and l1s 105cpu.addPrivateSplitL1Caches(L1(size = '32kB', assoc = 1), 106 L1(size = '32kB', assoc = 4), 107 PageTableWalkerCache(), 108 PageTableWalkerCache()) 109# connect cpu level-1 caches to shared level-2 cache 110cpu.connectAllPorts(system.toL2Bus, system.membus) 111cpu.clock = '2GHz' 112
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