summaryrefslogtreecommitdiff
path: root/configs/ruby/Ruby.py
blob: 40ee6319579051b8be85d3b8e1ee2b3dbad67044 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
# Copyright (c) 2012 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder.  You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Copyright (c) 2006-2007 The Regents of The University of Michigan
# Copyright (c) 2009 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: Brad Beckmann

import math
import m5
from m5.objects import *
from m5.defines import buildEnv

def define_options(parser):
    # By default, ruby uses the simple timing cpu
    parser.set_defaults(cpu_type="timing")

    # ruby network options
    parser.add_option("--topology", type="string", default="Crossbar",
                 help="check src/mem/ruby/network/topologies for complete set")
    parser.add_option("--mesh-rows", type="int", default=1,
                      help="the number of rows in the mesh topology")
    parser.add_option("--garnet-network", type="string", default=None,
                      help="'fixed'|'flexible'")
    parser.add_option("--network-fault-model", action="store_true", default=False,
                      help="enable network fault model: see src/mem/ruby/network/fault_model/")

    # ruby mapping options
    parser.add_option("--numa-high-bit", type="int", default=0,
                      help="high order address bit to use for numa mapping. " \
                           "0 = highest bit, not specified = lowest bit")

    # ruby sparse memory options
    parser.add_option("--use-map", action="store_true", default=False)
    parser.add_option("--map-levels", type="int", default=4)

    parser.add_option("--recycle-latency", type="int", default=10,
                      help="Recycle latency for ruby controller input buffers")

    parser.add_option("--random_seed", type="int", default=1234,
                      help="Used for seeding the random number generator")

    parser.add_option("--ruby_stats", type="string", default="ruby.stats")

    protocol = buildEnv['PROTOCOL']
    exec "import %s" % protocol
    eval("%s.define_options(parser)" % protocol)

def create_topology(controllers, options):
    """ Called from create_system in configs/ruby/<protocol>.py
        Must return an object which is a subclass of BaseTopology
        found in configs/topologies/BaseTopology.py
        This is a wrapper for the legacy topologies.
    """
    exec "import %s as Topo" % options.topology
    topology = eval("Topo.%s(controllers)" % options.topology)
    return topology

def create_system(options, system, piobus = None, dma_ports = []):

    system.ruby = RubySystem(clock = options.clock,
                             stats_filename = options.ruby_stats,
                             no_mem_vec = options.use_map)
    ruby = system.ruby

    protocol = buildEnv['PROTOCOL']
    exec "import %s" % protocol
    try:
        (cpu_sequencers, dir_cntrls, topology) = \
             eval("%s.create_system(options, system, piobus, dma_ports, ruby)"
                  % protocol)
    except:
        print "Error: could not create sytem for ruby protocol %s" % protocol
        raise

    # Create a port proxy for connecting the system port. This is
    # independent of the protocol and kept in the protocol-agnostic
    # part (i.e. here).
    sys_port_proxy = RubyPortProxy(ruby_system = ruby)
    # Give the system port proxy a SimObject parent without creating a
    # full-fledged controller
    system.sys_port_proxy = sys_port_proxy

    # Connect the system port for loading of binaries etc
    system.system_port = system.sys_port_proxy.slave


    #
    # Set the network classes based on the command line options
    #
    if options.garnet_network == "fixed":
        class NetworkClass(GarnetNetwork_d): pass
        class IntLinkClass(GarnetIntLink_d): pass
        class ExtLinkClass(GarnetExtLink_d): pass
        class RouterClass(GarnetRouter_d): pass
    elif options.garnet_network == "flexible":
        class NetworkClass(GarnetNetwork): pass
        class IntLinkClass(GarnetIntLink): pass
        class ExtLinkClass(GarnetExtLink): pass
        class RouterClass(GarnetRouter): pass
    else:
        class NetworkClass(SimpleNetwork): pass
        class IntLinkClass(SimpleIntLink): pass
        class ExtLinkClass(SimpleExtLink): pass
        class RouterClass(Switch): pass

    #
    # Important: the topology must be instantiated before the network and after
    # the controllers. Hence the separation between topology definition and
    # instantiation.
    #
    # gem5 SimObject defined in src/mem/ruby/network/Network.py
    net_topology = Topology()
    net_topology.description = topology.description

    routers, int_links, ext_links = topology.makeTopology(options,
                                    IntLinkClass, ExtLinkClass, RouterClass)

    net_topology.routers = routers
    net_topology.int_links = int_links
    net_topology.ext_links = ext_links


    if options.network_fault_model:
        assert(options.garnet_network == "fixed")
        fault_model = FaultModel()
        network = NetworkClass(ruby_system = ruby, topology = net_topology,\
                               enable_fault_model=True, fault_model = fault_model)
    else:
        network = NetworkClass(ruby_system = ruby, topology = net_topology)

    #
    # Loop through the directory controlers.
    # Determine the total memory size of the ruby system and verify it is equal
    # to physmem.  However, if Ruby memory is using sparse memory in SE
    # mode, then the system should not back-up the memory state with
    # the Memory Vector and thus the memory size bytes should stay at 0.
    # Also set the numa bits to the appropriate values.
    #
    total_mem_size = MemorySize('0B')

    dir_bits = int(math.log(options.num_dirs, 2))
    ruby.block_size_bytes = options.cacheline_size
    block_size_bits = int(math.log(options.cacheline_size, 2))

    if options.numa_high_bit:
        numa_bit = options.numa_high_bit
    else:
        # if the numa_bit is not specified, set the directory bits as the
        # lowest bits above the block offset bits, and the numa_bit as the
        # highest of those directory bits
        numa_bit = block_size_bits + dir_bits - 1

    for dir_cntrl in dir_cntrls:
        total_mem_size.value += dir_cntrl.directory.size.value
        dir_cntrl.directory.numa_high_bit = numa_bit

    phys_mem_size = sum(map(lambda mem: mem.range.size(),
                            system.memories.unproxy(system)))
    assert(total_mem_size.value == phys_mem_size)

    ruby_profiler = RubyProfiler(ruby_system = ruby,
                                 num_of_sequencers = len(cpu_sequencers))
    ruby.network = network
    ruby.profiler = ruby_profiler
    ruby.mem_size = total_mem_size
    ruby._cpu_ruby_ports = cpu_sequencers
    ruby.random_seed    = options.random_seed