Ruby.py revision 6906:35da51c349e2 
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
35import MOESI_hammer
36import MI_example
37
38def create_system(options, physmem, piobus = None, dma_devices = []):
39
40    protocol = buildEnv['PROTOCOL']
41
42    if protocol == "MOESI_hammer":
43        (cpu_sequencers, dir_cntrls, all_cntrls) = \
44            MOESI_hammer.create_system(options, \
45                                       physmem, \
46                                       piobus, \
47                                       dma_devices)
48    elif protocol == "MI_example":
49        (cpu_sequencers, dir_cntrls, all_cntrls) = \
50            MI_example.create_system(options, \
51                                     physmem, \
52                                     piobus, \
53                                     dma_devices)
54    else:
55         print "Error: unsupported ruby protocol"
56         sys.exit(1)
57
58    #
59    # Important: the topology constructor must be called before the network
60    # constructor.
61    #
62    network = SimpleNetwork(topology = makeCrossbar(all_cntrls))
63
64    #
65    # determine the total memory size of the ruby system and verify it is equal
66    # to physmem
67    #
68    total_mem_size = MemorySize('0B')
69    for dir_cntrl in dir_cntrls:
70        total_mem_size.value += dir_cntrl.directory.size.value
71    physmem_size = long(physmem.range.second) - long(physmem.range.first) + 1
72    assert(total_mem_size.value == physmem_size)
73
74    ruby_profiler = RubyProfiler(num_of_sequencers = len(cpu_sequencers))
75
76    ruby = RubySystem(clock = options.clock,
77                      network = network,
78                      profiler = ruby_profiler,
79                      tracer = RubyTracer(),
80                      debug = RubyDebug(filter_string = 'none',
81                                        verbosity_string = 'none',
82                                        protocol_trace = False),
83                      mem_size = total_mem_size)
84
85    ruby.cpu_ruby_ports = cpu_sequencers
86
87    return ruby
88