Ruby.py revision 7032:9f938aea1942 
1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# Copyright (c) 2009 Advanced Micro Devices, Inc.
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions are
7# met: redistributions of source code must retain the above copyright
8# notice, this list of conditions and the following disclaimer;
9# redistributions in binary form must reproduce the above copyright
10# notice, this list of conditions and the following disclaimer in the
11# documentation and/or other materials provided with the distribution;
12# neither the name of the copyright holders nor the names of its
13# contributors may be used to endorse or promote products derived from
14# this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28# Authors: Brad Beckmann
29
30import m5
31from m5.objects import *
32from m5.defines import buildEnv
33from m5.util import addToPath
34
35def create_system(options, physmem, piobus = None, dma_devices = []):
36
37    protocol = buildEnv['PROTOCOL']
38    exec "import %s" % protocol
39    try:
40        (cpu_sequencers, dir_cntrls, all_cntrls) = \
41          eval("%s.create_system(options, physmem, piobus, dma_devices)" \
42               % protocol)
43    except:
44        print "Error: could not create sytem for ruby protocol %s" % protocol
45        sys.exit(1)
46
47    #
48    # Important: the topology must be created before the network and after the
49    # controllers.
50    #
51    exec "import %s" % options.topology
52    try:
53        net_topology = eval("%s.makeTopology(all_cntrls, options)" % options.topology)
54    except:
55        print "Error: could not create topology %s" % options.topology
56        sys.exit(1)
57
58    if options.garnet_network == "fixed":
59        network = GarnetNetwork_d(topology = net_topology)
60    elif options.garnet_network == "flexible":
61        network = GarnetNetwork(topology = net_topology)
62    else:
63        network = SimpleNetwork(topology = net_topology)
64
65    #
66    # Determine the total memory size of the ruby system and verify it is equal
67    # to physmem.  However, if Ruby memory is using sparse memory in SE
68    # mode, then the system should not back-up the memory state with
69    # the Memory Vector and thus the memory size bytes should stay at 0.
70    #
71    total_mem_size = MemorySize('0B')
72    for dir_cntrl in dir_cntrls:
73        total_mem_size.value += dir_cntrl.directory.size.value
74    physmem_size = long(physmem.range.second) - long(physmem.range.first) + 1
75    assert(total_mem_size.value == physmem_size)
76
77    ruby_profiler = RubyProfiler(num_of_sequencers = len(cpu_sequencers))
78
79    ruby = RubySystem(clock = options.clock,
80                      network = network,
81                      profiler = ruby_profiler,
82                      tracer = RubyTracer(),
83                      debug = RubyDebug(filter_string = 'none',
84                                        verbosity_string = 'none',
85                                        protocol_trace = False),
86                      mem_size = total_mem_size)
87
88    ruby.cpu_ruby_ports = cpu_sequencers
89
90    return ruby
91