Ruby.py revision 7661:b03534522b91 
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 math
31import m5
32from m5.objects import *
33from m5.defines import buildEnv
34
35def define_options(parser):
36    # ruby network options
37    parser.add_option("--topology", type="string", default="Crossbar",
38                 help="check src/mem/ruby/network/topologies for complete set")
39    parser.add_option("--mesh-rows", type="int", default=1,
40                      help="the number of rows in the mesh topology")
41    parser.add_option("--garnet-network", type="string", default=None,
42                      help="'fixed'|'flexible'")
43
44    # ruby mapping options
45    parser.add_option("--numa-high-bit", type="int", default=None,
46                      help="high order address bit to use for numa mapping. " \
47                           "0 = highest bit, not specified = lowest bit")
48
49    # ruby sparse memory options
50    parser.add_option("--use-map", action="store_true", default=False)
51    parser.add_option("--map-levels", type="int", default=4)
52
53    # ruby debug cmd line options
54    parser.add_option("--ruby-debug", action="store_true", default=False)
55    parser.add_option("--ruby-debug-cycle", type="int", default=1)
56
57    parser.add_option("--recycle-latency", type="int", default=10,
58                      help="Recycle latency for ruby controller input buffers")
59
60    protocol = buildEnv['PROTOCOL']
61    exec "import %s" % protocol
62    eval("%s.define_options(parser)" % protocol)
63
64def create_system(options, system, piobus = None, dma_devices = []):
65
66    protocol = buildEnv['PROTOCOL']
67    exec "import %s" % protocol
68    try:
69        (cpu_sequencers, dir_cntrls, all_cntrls) = \
70             eval("%s.create_system(options, system, piobus, dma_devices)" \
71                  % protocol)
72    except:
73        print "Error: could not create sytem for ruby protocol %s" % protocol
74        raise
75
76    #
77    # Important: the topology must be created before the network and after the
78    # controllers.
79    #
80    exec "import %s" % options.topology
81    try:
82        net_topology = eval("%s.makeTopology(all_cntrls, options)" \
83                            % options.topology)
84    except:
85        print "Error: could not create topology %s" % options.topology
86        raise
87
88    if options.garnet_network == "fixed":
89        network = GarnetNetwork_d(topology = net_topology)
90    elif options.garnet_network == "flexible":
91        network = GarnetNetwork(topology = net_topology)
92    else:
93        network = SimpleNetwork(topology = net_topology)
94
95    #
96    # Loop through the directory controlers.
97    # Determine the total memory size of the ruby system and verify it is equal
98    # to physmem.  However, if Ruby memory is using sparse memory in SE
99    # mode, then the system should not back-up the memory state with
100    # the Memory Vector and thus the memory size bytes should stay at 0.
101    # Also set the numa bits to the appropriate values.
102    #
103    total_mem_size = MemorySize('0B')
104
105    dir_bits = int(math.log(options.num_dirs, 2))
106
107    if options.numa_high_bit:
108        numa_bit = options.numa_high_bit
109    else:
110        # if not specified, use the lowest bits above the block offest
111        if options.numa_high_bit == 0:
112            if dir_bits > 0:
113                # add 5 because bits 0-5 are the block offset
114                numa_bit = dir_bits + 5
115            else:
116                numa_bit = 6
117
118    for dir_cntrl in dir_cntrls:
119        total_mem_size.value += dir_cntrl.directory.size.value
120        dir_cntrl.directory.numa_high_bit = numa_bit
121
122    physmem_size = long(system.physmem.range.second) - \
123                     long(system.physmem.range.first) + 1
124    assert(total_mem_size.value == physmem_size)
125
126    ruby_profiler = RubyProfiler(num_of_sequencers = len(cpu_sequencers))
127
128    ruby = RubySystem(clock = options.clock,
129                      network = network,
130                      profiler = ruby_profiler,
131                      tracer = RubyTracer(),
132                      debug = RubyDebug(filter_string = 'none',
133                                        verbosity_string = 'none',
134                                        protocol_trace = options.ruby_debug,
135                                        start_time = options.ruby_debug_cycle),
136                      mem_size = total_mem_size)
137
138    ruby.cpu_ruby_ports = cpu_sequencers
139
140    return ruby
141