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 MESI_CMP_directory
37import MOESI_CMP_directory
38import MI_example
39import MOESI_CMP_token
40
41def create_system(options, physmem, piobus = None, dma_devices = []):
42
43 protocol = buildEnv['PROTOCOL']
44
45 if protocol == "MOESI_hammer":
46 (cpu_sequencers, dir_cntrls, all_cntrls) = \
47 MOESI_hammer.create_system(options, \
48 physmem, \
49 piobus, \
50 dma_devices)
51 elif protocol == "MESI_CMP_directory":
52 (cpu_sequencers, dir_cntrls, all_cntrls) = \
53 MESI_CMP_directory.create_system(options, \
54 physmem, \
55 piobus, \
56 dma_devices)
57 elif protocol == "MOESI_CMP_directory":
58 (cpu_sequencers, dir_cntrls, all_cntrls) = \
59 MOESI_CMP_directory.create_system(options, \
60 physmem, \
61 piobus, \
62 dma_devices)
63 elif protocol == "MI_example":
64 (cpu_sequencers, dir_cntrls, all_cntrls) = \
65 MI_example.create_system(options, \
66 physmem, \
67 piobus, \
68 dma_devices)
69 elif protocol == "MOESI_CMP_token":
70 (cpu_sequencers, dir_cntrls, all_cntrls) = \
71 MOESI_CMP_token.create_system(options, \
72 physmem, \
73 piobus, \
74 dma_devices)
75 else:
76 print "Error: unsupported ruby protocol"
77 sys.exit(1)
78
79 #
80 # Important: the topology constructor must be called before the network
81 # constructor.
82 #
83 network = SimpleNetwork(topology = makeCrossbar(all_cntrls))
84
85 #
86 # determine the total memory size of the ruby system and verify it is equal
87 # to physmem
88 #
89 total_mem_size = MemorySize('0B')
90 for dir_cntrl in dir_cntrls:
91 total_mem_size.value += dir_cntrl.directory.size.value
92 physmem_size = long(physmem.range.second) - long(physmem.range.first) + 1
93 assert(total_mem_size.value == physmem_size)
94
95 ruby_profiler = RubyProfiler(num_of_sequencers = len(cpu_sequencers))
96
97 ruby = RubySystem(clock = options.clock,
98 network = network,
99 profiler = ruby_profiler,
100 tracer = RubyTracer(),
101 debug = RubyDebug(filter_string = 'none',
102 verbosity_string = 'none',
103 protocol_trace = False),
104 mem_size = total_mem_size)
105
106 ruby.cpu_ruby_ports = cpu_sequencers
107
108 return ruby