ruby_direct_test.py revision 10300:ed3816dae6d5 
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: Ron Dreslinski
29#          Brad Beckmann
30
31import m5
32from m5.objects import *
33from m5.defines import buildEnv
34from m5.util import addToPath
35import os, optparse, sys
36addToPath('../common')
37addToPath('../ruby')
38addToPath('../topologies')
39
40import Options
41import Ruby
42
43# Get paths we might need.  It's expected this file is in m5/configs/example.
44config_path = os.path.dirname(os.path.abspath(__file__))
45config_root = os.path.dirname(config_path)
46m5_root = os.path.dirname(config_root)
47
48parser = optparse.OptionParser()
49Options.addCommonOptions(parser)
50
51parser.add_option("-l", "--requests", metavar="N", default=100,
52                  help="Stop after N requests")
53parser.add_option("-f", "--wakeup_freq", metavar="N", default=10,
54                  help="Wakeup every N cycles")
55parser.add_option("--test-type", type="choice", default="SeriesGetx",
56                  choices = ["SeriesGetx", "SeriesGets", "SeriesGetMixed",
57                             "Invalidate"],
58                  help = "Type of test")
59parser.add_option("--percent-writes", type="int", default=100,
60                  help="percentage of accesses that should be writes")
61
62#
63# Add the ruby specific and protocol specific options
64#
65Ruby.define_options(parser)
66(options, args) = parser.parse_args()
67
68if args:
69     print "Error: script doesn't take any positional arguments"
70     sys.exit(1)
71
72#
73# Select the direct test generator
74#
75if options.test_type == "SeriesGetx":
76    generator = SeriesRequestGenerator(num_cpus = options.num_cpus,
77                                       percent_writes = 100)
78elif options.test_type == "SeriesGets":
79    generator = SeriesRequestGenerator(num_cpus = options.num_cpus,
80                                       percent_writes = 0)
81elif options.test_type == "SeriesGetMixed":
82    generator = SeriesRequestGenerator(num_cpus = options.num_cpus,
83                                       percent_writes = options.percent_writes)
84elif options.test_type == "Invalidate":
85    generator = InvalidateGenerator(num_cpus = options.num_cpus)
86else:
87    print "Error: unknown direct test generator"
88    sys.exit(1)
89
90#
91# Create the M5 system.  Note that the Memory Object isn't
92# actually used by the rubytester, but is included to support the
93# M5 memory size == Ruby memory size checks
94#
95system = System(physmem = SimpleMemory(),
96                mem_ranges = [AddrRange(options.mem_size)])
97
98
99# Create a top-level voltage domain and clock domain
100system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
101
102system.clk_domain = SrcClockDomain(clock = options.sys_clock,
103                                   voltage_domain = system.voltage_domain)
104
105#
106# Create the ruby random tester
107#
108system.cpu = RubyDirectedTester(requests_to_complete = \
109                                   options.requests,
110                                   generator = generator)
111
112Ruby.create_system(options, system)
113
114# Since Ruby runs at an independent frequency, create a seperate clock
115system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
116                                        voltage_domain = system.voltage_domain)
117
118assert(options.num_cpus == len(system.ruby._cpu_ports))
119
120for ruby_port in system.ruby._cpu_ports:
121    #
122    # Tie the ruby tester ports to the ruby cpu ports
123    #
124    system.tester.cpuPort = ruby_port.slave
125
126# -----------------------
127# run simulation
128# -----------------------
129
130root = Root( full_system = False, system = system )
131root.system.mem_mode = 'timing'
132
133# Not much point in this being higher than the L1 latency
134m5.ticks.setGlobalFrequency('1ns')
135
136# instantiate configuration
137m5.instantiate()
138
139# simulate until program terminates
140exit_event = m5.simulate(options.abs_max_tick)
141
142print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
143