realview-simple-timing.py revision 8134:b01a51ff05fa
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') 32import FSConfig 33 34 35# -------------------- 36# Base L1 Cache 37# ==================== 38 39class L1(BaseCache): 40 latency = '1ns' 41 block_size = 64 42 mshrs = 4 43 tgts_per_mshr = 8 44 is_top_level = True 45 46# ---------------------- 47# Base L2 Cache 48# ---------------------- 49 50class L2(BaseCache): 51 block_size = 64 52 latency = '10ns' 53 mshrs = 92 54 tgts_per_mshr = 16 55 write_buffers = 8 56 57# --------------------- 58# I/O Cache 59# --------------------- 60class IOCache(BaseCache): 61 assoc = 8 62 block_size = 64 63 latency = '50ns' 64 mshrs = 20 65 size = '1kB' 66 tgts_per_mshr = 12 67 addr_range=AddrRange(0, size='128MB') 68 forward_snoops = False 69 70#cpu 71cpu = TimingSimpleCPU(cpu_id=0) 72#the system 73system = FSConfig.makeArmSystem('timing', "RealView_PBX", None, False) 74 75system.cpu = cpu 76#create the l1/l2 bus 77system.toL2Bus = Bus() 78system.bridge.filter_ranges_a=[AddrRange(0, Addr.max)] 79system.bridge.filter_ranges_b=[AddrRange(0, size='128MB')] 80system.iocache = IOCache() 81system.iocache.cpu_side = system.iobus.port 82system.iocache.mem_side = system.membus.port 83 84 85#connect up the l2 cache 86system.l2c = L2(size='4MB', assoc=8) 87system.l2c.cpu_side = system.toL2Bus.port 88system.l2c.mem_side = system.membus.port 89 90#connect up the cpu and l1s 91cpu.addPrivateSplitL1Caches(L1(size = '32kB', assoc = 1), 92 L1(size = '32kB', assoc = 4)) 93# connect cpu level-1 caches to shared level-2 cache 94cpu.connectAllPorts(system.toL2Bus, system.membus) 95cpu.clock = '2GHz' 96 97root = Root(system=system) 98m5.ticks.setGlobalFrequency('1THz') 99 100