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')
| 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')
|
38
39import Options
40import Ruby
41
42# Get paths we might need. It's expected this file is in m5/configs/example.
43config_path = os.path.dirname(os.path.abspath(__file__))
44config_root = os.path.dirname(config_path)
45m5_root = os.path.dirname(config_root)
46
47parser = optparse.OptionParser()
48Options.addCommonOptions(parser)
49
50parser.add_option("-l", "--maxloads", metavar="N", default=0,
51 help="Stop after N loads")
52parser.add_option("--progress", type="int", default=1000,
53 metavar="NLOADS",
54 help="Progress message interval "
55 "[default: %default]")
56parser.add_option("--num-dmas", type="int", default=0, help="# of dma testers")
57parser.add_option("--functional", type="int", default=0,
58 help="percentage of accesses that should be functional")
59parser.add_option("--suppress-func-warnings", action="store_true",
60 help="suppress warnings when functional accesses fail")
61
62#
63# Add the ruby specific and protocol specific options
64#
65Ruby.define_options(parser)
66
67execfile(os.path.join(config_root, "common", "Options.py"))
68
69(options, args) = parser.parse_args()
70
71#
72# Set the default cache size and associativity to be very small to encourage
73# races between requests and writebacks.
74#
75options.l1d_size="256B"
76options.l1i_size="256B"
77options.l2_size="512B"
78options.l3_size="1kB"
79options.l1d_assoc=2
80options.l1i_assoc=2
81options.l2_assoc=2
82options.l3_assoc=2
83
84if args:
85 print "Error: script doesn't take any positional arguments"
86 sys.exit(1)
87
88block_size = 64
89
90if options.num_cpus > block_size:
91 print "Error: Number of testers %d limited to %d because of false sharing" \
92 % (options.num_cpus, block_size)
93 sys.exit(1)
94
95#
96# Currently ruby does not support atomic or uncacheable accesses
97#
98cpus = [ MemTest(atomic = False,
99 max_loads = options.maxloads,
100 issue_dmas = False,
101 percent_functional = options.functional,
102 percent_uncacheable = 0,
103 progress_interval = options.progress,
104 suppress_func_warnings = options.suppress_func_warnings) \
105 for i in xrange(options.num_cpus) ]
106
107system = System(cpu = cpus,
108 funcmem = SimpleMemory(in_addr_map = False),
109 physmem = SimpleMemory())
110
111if options.num_dmas > 0:
112 dmas = [ MemTest(atomic = False,
113 max_loads = options.maxloads,
114 issue_dmas = True,
115 percent_functional = 0,
116 percent_uncacheable = 0,
117 progress_interval = options.progress,
118 suppress_func_warnings =
119 not options.suppress_func_warnings) \
120 for i in xrange(options.num_dmas) ]
121 system.dma_devices = dmas
122else:
123 dmas = []
124
125dma_ports = []
126for (i, dma) in enumerate(dmas):
127 dma_ports.append(dma.test)
128Ruby.create_system(options, system, dma_ports = dma_ports)
129
130#
131# The tester is most effective when randomization is turned on and
132# artifical delay is randomly inserted on messages
133#
134system.ruby.randomization = True
135
136assert(len(cpus) == len(system.ruby._cpu_ruby_ports))
137
138for (i, cpu) in enumerate(cpus):
139 #
140 # Tie the cpu memtester ports to the correct system ports
141 #
142 cpu.test = system.ruby._cpu_ruby_ports[i].slave
143 cpu.functional = system.funcmem.port
144
145 #
146 # Since the memtester is incredibly bursty, increase the deadlock
147 # threshold to 5 million cycles
148 #
149 system.ruby._cpu_ruby_ports[i].deadlock_threshold = 5000000
150
151 #
152 # Ruby doesn't need the backing image of memory when running with
153 # the tester.
154 #
155 system.ruby._cpu_ruby_ports[i].access_phys_mem = False
156
157for (i, dma) in enumerate(dmas):
158 #
159 # Tie the dma memtester ports to the correct functional port
160 # Note that the test port has already been connected to the dma_sequencer
161 #
162 dma.functional = system.funcmem.port
163
164# -----------------------
165# run simulation
166# -----------------------
167
168root = Root( full_system = False, system = system )
169root.system.mem_mode = 'timing'
170
171# Not much point in this being higher than the L1 latency
172m5.ticks.setGlobalFrequency('1ns')
173
174# instantiate configuration
175m5.instantiate()
176
177# simulate until program terminates
178exit_event = m5.simulate(options.maxtick)
179
180print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
| 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", "--maxloads", metavar="N", default=0,
52 help="Stop after N loads")
53parser.add_option("--progress", type="int", default=1000,
54 metavar="NLOADS",
55 help="Progress message interval "
56 "[default: %default]")
57parser.add_option("--num-dmas", type="int", default=0, help="# of dma testers")
58parser.add_option("--functional", type="int", default=0,
59 help="percentage of accesses that should be functional")
60parser.add_option("--suppress-func-warnings", action="store_true",
61 help="suppress warnings when functional accesses fail")
62
63#
64# Add the ruby specific and protocol specific options
65#
66Ruby.define_options(parser)
67
68execfile(os.path.join(config_root, "common", "Options.py"))
69
70(options, args) = parser.parse_args()
71
72#
73# Set the default cache size and associativity to be very small to encourage
74# races between requests and writebacks.
75#
76options.l1d_size="256B"
77options.l1i_size="256B"
78options.l2_size="512B"
79options.l3_size="1kB"
80options.l1d_assoc=2
81options.l1i_assoc=2
82options.l2_assoc=2
83options.l3_assoc=2
84
85if args:
86 print "Error: script doesn't take any positional arguments"
87 sys.exit(1)
88
89block_size = 64
90
91if options.num_cpus > block_size:
92 print "Error: Number of testers %d limited to %d because of false sharing" \
93 % (options.num_cpus, block_size)
94 sys.exit(1)
95
96#
97# Currently ruby does not support atomic or uncacheable accesses
98#
99cpus = [ MemTest(atomic = False,
100 max_loads = options.maxloads,
101 issue_dmas = False,
102 percent_functional = options.functional,
103 percent_uncacheable = 0,
104 progress_interval = options.progress,
105 suppress_func_warnings = options.suppress_func_warnings) \
106 for i in xrange(options.num_cpus) ]
107
108system = System(cpu = cpus,
109 funcmem = SimpleMemory(in_addr_map = False),
110 physmem = SimpleMemory())
111
112if options.num_dmas > 0:
113 dmas = [ MemTest(atomic = False,
114 max_loads = options.maxloads,
115 issue_dmas = True,
116 percent_functional = 0,
117 percent_uncacheable = 0,
118 progress_interval = options.progress,
119 suppress_func_warnings =
120 not options.suppress_func_warnings) \
121 for i in xrange(options.num_dmas) ]
122 system.dma_devices = dmas
123else:
124 dmas = []
125
126dma_ports = []
127for (i, dma) in enumerate(dmas):
128 dma_ports.append(dma.test)
129Ruby.create_system(options, system, dma_ports = dma_ports)
130
131#
132# The tester is most effective when randomization is turned on and
133# artifical delay is randomly inserted on messages
134#
135system.ruby.randomization = True
136
137assert(len(cpus) == len(system.ruby._cpu_ruby_ports))
138
139for (i, cpu) in enumerate(cpus):
140 #
141 # Tie the cpu memtester ports to the correct system ports
142 #
143 cpu.test = system.ruby._cpu_ruby_ports[i].slave
144 cpu.functional = system.funcmem.port
145
146 #
147 # Since the memtester is incredibly bursty, increase the deadlock
148 # threshold to 5 million cycles
149 #
150 system.ruby._cpu_ruby_ports[i].deadlock_threshold = 5000000
151
152 #
153 # Ruby doesn't need the backing image of memory when running with
154 # the tester.
155 #
156 system.ruby._cpu_ruby_ports[i].access_phys_mem = False
157
158for (i, dma) in enumerate(dmas):
159 #
160 # Tie the dma memtester ports to the correct functional port
161 # Note that the test port has already been connected to the dma_sequencer
162 #
163 dma.functional = system.funcmem.port
164
165# -----------------------
166# run simulation
167# -----------------------
168
169root = Root( full_system = False, system = system )
170root.system.mem_mode = 'timing'
171
172# Not much point in this being higher than the L1 latency
173m5.ticks.setGlobalFrequency('1ns')
174
175# instantiate configuration
176m5.instantiate()
177
178# simulate until program terminates
179exit_event = m5.simulate(options.maxtick)
180
181print 'Exiting @ tick', m5.curTick(), 'because', exit_event.getCause()
|