Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

simulators/gem5/tests/configs/memtest-ruby.py

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+# Copyright (c) 2006-2007 The Regents of The University of Michigan
+# Copyright (c) 2010 Advanced Micro Devices, Inc.
+# 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: Ron Dreslinski
+
+import m5
+from m5.objects import *
+from m5.defines import buildEnv
+from m5.util import addToPath
+import os, optparse, sys
+
+# Get paths we might need
+config_path = os.path.dirname(os.path.abspath(__file__))
+config_root = os.path.dirname(config_path)
+m5_root = os.path.dirname(config_root)
+addToPath(config_root+'/configs/common')
+addToPath(config_root+'/configs/ruby')
+
+import Ruby
+import Options
+
+parser = optparse.OptionParser()
+Options.addCommonOptions(parser)
+
+# Add the ruby specific and protocol specific options
+Ruby.define_options(parser)
+
+(options, args) = parser.parse_args()
+
+#
+# Set the default cache size and associativity to be very small to encourage
+# races between requests and writebacks.
+#
+options.l1d_size="256B"
+options.l1i_size="256B"
+options.l2_size="512B"
+options.l3_size="1kB"
+options.l1d_assoc=2
+options.l1i_assoc=2
+options.l2_assoc=2
+options.l3_assoc=2
+
+#MAX CORES IS 8 with the fals sharing method
+nb_cores = 8
+
+# ruby does not support atomic, functional, or uncacheable accesses
+cpus = [ MemTest(atomic=False, percent_functional=50,
+                 percent_uncacheable=0, suppress_func_warnings=True) \
+         for i in xrange(nb_cores) ]
+
+# overwrite options.num_cpus with the nb_cores value
+options.num_cpus = nb_cores
+ 
+# system simulated
+system = System(cpu = cpus,
+                funcmem = SimpleMemory(in_addr_map = False),
+                physmem = SimpleMemory())
+
+Ruby.create_system(options, system)
+
+assert(len(cpus) == len(system.ruby._cpu_ruby_ports))
+
+for (i, ruby_port) in enumerate(system.ruby._cpu_ruby_ports):
+     #
+     # Tie the cpu test and functional ports to the ruby cpu ports and
+     # physmem, respectively
+     #
+     cpus[i].test = ruby_port.slave
+     cpus[i].functional = system.funcmem.port
+     
+     #
+     # Since the memtester is incredibly bursty, increase the deadlock
+     # threshold to 1 million cycles
+     #
+     ruby_port.deadlock_threshold = 1000000
+
+     #
+     # Ruby doesn't need the backing image of memory when running with
+     # the tester.
+     #
+     ruby_port.access_phys_mem = False
+
+# -----------------------
+# run simulation
+# -----------------------
+
+root = Root(full_system = False, system = system)
+root.system.mem_mode = 'timing'
+
+# Not much point in this being higher than the L1 latency
+m5.ticks.setGlobalFrequency('1ns')