Ruby.py revision 6905:12390db623b4 
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
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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
35import MOESI_hammer
36
37def create_system(options, physmem, piobus = None, dma_devices = []):
38
39    protocol = buildEnv['PROTOCOL']
40
41    if protocol == "MOESI_hammer":
42        (cpu_sequencers, dir_cntrls, all_cntrls) = \
43            MOESI_hammer.create_system(options, \
44                                       physmem, \
45                                       piobus, \
46                                       dma_devices)
47    else:
48         print "Error: unsupported ruby protocol"
49         sys.exit(1)
50
51    #
52    # Important: the topology constructor must be called before the network
53    # constructor.
54    #
55    network = SimpleNetwork(topology = makeCrossbar(all_cntrls))
56
57    #
58    # determine the total memory size of the ruby system and verify it is equal
59    # to physmem
60    #
61    total_mem_size = MemorySize('0B')
62    for dir_cntrl in dir_cntrls:
63        total_mem_size.value += dir_cntrl.directory.size.value
64    physmem_size = long(physmem.range.second) - long(physmem.range.first) + 1
65    assert(total_mem_size.value == physmem_size)
66
67    ruby_profiler = RubyProfiler(num_of_sequencers = len(cpu_sequencers))
68
69    ruby = RubySystem(clock = options.clock,
70                      network = network,
71                      profiler = ruby_profiler,
72                      tracer = RubyTracer(),
73                      debug = RubyDebug(filter_string = 'none',
74                                        verbosity_string = 'none',
75                                        protocol_trace = False),
76                      mem_size = total_mem_size)
77
78    ruby.cpu_ruby_ports = cpu_sequencers
79
80    return ruby
81