ruby_random_test.py revision 11662:004d34b65092 
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('../network')
39addToPath('../topologies')
40
41import Options
42import Ruby
43import Network
44
45# Get paths we might need.  It's expected this file is in m5/configs/example.
46config_path = os.path.dirname(os.path.abspath(__file__))
47config_root = os.path.dirname(config_path)
48m5_root = os.path.dirname(config_root)
49
50parser = optparse.OptionParser()
51Options.addCommonOptions(parser)
52
53parser.add_option("--maxloads", metavar="N", default=100,
54                  help="Stop after N loads")
55parser.add_option("-f", "--wakeup_freq", metavar="N", default=10,
56                  help="Wakeup every N cycles")
57
58#
59# Add the ruby specific and protocol specific options
60#
61Ruby.define_options(parser)
62Network.define_options(parser)
63
64execfile(os.path.join(config_root, "common", "Options.py"))
65
66(options, args) = parser.parse_args()
67
68#
69# Set the default cache size and associativity to be very small to encourage
70# races between requests and writebacks.
71#
72options.l1d_size="256B"
73options.l1i_size="256B"
74options.l2_size="512B"
75options.l3_size="1kB"
76options.l1d_assoc=2
77options.l1i_assoc=2
78options.l2_assoc=2
79options.l3_assoc=2
80
81if args:
82     print "Error: script doesn't take any positional arguments"
83     sys.exit(1)
84
85#
86# Create the ruby random tester
87#
88
89# Check the protocol
90check_flush = False
91if buildEnv['PROTOCOL'] == 'MOESI_hammer':
92    check_flush = True
93
94tester = RubyTester(check_flush = check_flush,
95                    checks_to_complete = options.maxloads,
96                    wakeup_frequency = options.wakeup_freq)
97
98#
99# Create the M5 system.  Note that the Memory Object isn't
100# actually used by the rubytester, but is included to support the
101# M5 memory size == Ruby memory size checks
102#
103system = System(cpu = tester, mem_ranges = [AddrRange(options.mem_size)])
104
105# Create a top-level voltage domain and clock domain
106system.voltage_domain = VoltageDomain(voltage = options.sys_voltage)
107
108system.clk_domain = SrcClockDomain(clock = options.sys_clock,
109                                   voltage_domain = system.voltage_domain)
110
111Ruby.create_system(options, False, system)
112
113# Create a seperate clock domain for Ruby
114system.ruby.clk_domain = SrcClockDomain(clock = options.ruby_clock,
115                                        voltage_domain = system.voltage_domain)
116
117assert(options.num_cpus == len(system.ruby._cpu_ports))
118
119tester.num_cpus = len(system.ruby._cpu_ports)
120
121#
122# The tester is most effective when randomization is turned on and
123# artifical delay is randomly inserted on messages
124#
125system.ruby.randomization = True
126
127for ruby_port in system.ruby._cpu_ports:
128    #
129    # Tie the ruby tester ports to the ruby cpu read and write ports
130    #
131    if ruby_port.support_data_reqs and ruby_port.support_inst_reqs:
132        tester.cpuInstDataPort = ruby_port.slave
133    elif ruby_port.support_data_reqs:
134        tester.cpuDataPort = ruby_port.slave
135    elif ruby_port.support_inst_reqs:
136        tester.cpuInstPort = ruby_port.slave
137
138    # Do not automatically retry stalled Ruby requests
139    ruby_port.no_retry_on_stall = True
140
141    #
142    # Tell each sequencer this is the ruby tester so that it
143    # copies the subblock back to the checker
144    #
145    ruby_port.using_ruby_tester = True
146
147# -----------------------
148# run simulation
149# -----------------------
150
151root = Root( full_system = False, system = system )
152root.system.mem_mode = 'timing'
153
154# Not much point in this being higher than the L1 latency
155m5.ticks.setGlobalFrequency('1ns')
156
157# instantiate configuration
158m5.instantiate()
159
160# simulate until program terminates
161exit_event = m5.simulate(options.abs_max_tick)
162
163print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
164