memtest.py revision 6978
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: Ron Dreslinski 28 29import m5 30from m5.objects import * 31 32# -------------------- 33# Base L1 Cache 34# ==================== 35 36class L1(BaseCache): 37 latency = '1ns' 38 block_size = 64 39 mshrs = 12 40 tgts_per_mshr = 8 41 42# ---------------------- 43# Base L2 Cache 44# ---------------------- 45 46class L2(BaseCache): 47 block_size = 64 48 latency = '10ns' 49 mshrs = 92 50 tgts_per_mshr = 16 51 write_buffers = 8 52 53#MAX CORES IS 8 with the fals sharing method 54nb_cores = 8 55cpus = [ MemTest() for i in xrange(nb_cores) ] 56 57# system simulated 58system = System(cpu = cpus, funcmem = PhysicalMemory(), 59 physmem = PhysicalMemory(), 60 membus = Bus(clock="500GHz", width=16)) 61 62# l2cache & bus 63system.toL2Bus = Bus(clock="500GHz", width=16) 64system.l2c = L2(size='64kB', assoc=8) 65system.l2c.cpu_side = system.toL2Bus.port 66system.l2c.num_cpus = nb_cores 67 68# connect l2c to membus 69system.l2c.mem_side = system.membus.port 70 71# add L1 caches 72for cpu in cpus: 73 cpu.l1c = L1(size = '32kB', assoc = 4) 74 cpu.l1c.cpu_side = cpu.test 75 cpu.l1c.mem_side = system.toL2Bus.port 76 system.funcmem.port = cpu.functional 77 78# connect memory to membus 79system.physmem.port = system.membus.port 80 81 82# ----------------------- 83# run simulation 84# ----------------------- 85 86root = Root( system = system ) 87root.system.mem_mode = 'timing' 88#root.trace.flags="Cache CachePort MemoryAccess" 89#root.trace.cycle=1 90 91