1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Ron Dreslinski
28
29import optparse
30import sys
31
32import m5
33from m5.objects import *
34
35parser = optparse.OptionParser()
36
37parser.add_option("-a", "--atomic", action="store_true",
38 help="Use atomic (non-timing) mode")
39parser.add_option("-b", "--blocking", action="store_true",
40 help="Use blocking caches")
41parser.add_option("-l", "--maxloads", metavar="N", default=0,
42 help="Stop after N loads")
43parser.add_option("-m", "--maxtick", type="int", default=m5.MaxTick,
44 metavar="T",
45 help="Stop after T ticks")
46
47#
48# The "tree" specification is a colon-separated list of one or more
49# integers. The first integer is the number of caches/testers
50# connected directly to main memory. The last integer in the list is
51# the number of testers associated with the uppermost level of memory
52# (L1 cache, if there are caches, or main memory if no caches). Thus
53# if there is only one integer, there are no caches, and the integer
54# specifies the number of testers connected directly to main memory.
55# The other integers (if any) specify the number of caches at each
56# level of the hierarchy between.
57#
58# Examples:
59#
60# "2:1" Two caches connected to memory with a single tester behind each
61# (single-level hierarchy, two testers total)
62#
63# "2:2:1" Two-level hierarchy, 2 L1s behind each of 2 L2s, 4 testers total
64#
65parser.add_option("-t", "--treespec", type="string", default="8:1",
66 help="Colon-separated multilevel tree specification, "
67 "see script comments for details "
68 "[default: %default]")
69
70parser.add_option("--force-bus", action="store_true",
71 help="Use bus between levels even with single cache")
72
73parser.add_option("-f", "--functional", type="int", default=0,
74 metavar="PCT",
75 help="Target percentage of functional accesses "
76 "[default: %default]")
77parser.add_option("-u", "--uncacheable", type="int", default=0,
78 metavar="PCT",
79 help="Target percentage of uncacheable accesses "
80 "[default: %default]")
81
82parser.add_option("--progress", type="int", default=1000,
83 metavar="NLOADS",
84 help="Progress message interval "
85 "[default: %default]")
86parser.add_option("--sys-clock", action="store", type="string",
87 default='1GHz',
88 help = """Top-level clock for blocks running at system
89 speed""")
90
91(options, args) = parser.parse_args()
92
93if args:
94 print "Error: script doesn't take any positional arguments"
95 sys.exit(1)
96
97block_size = 64
98
99try:
100 treespec = [int(x) for x in options.treespec.split(':')]
101 numtesters = reduce(lambda x,y: x*y, treespec)
102except:
103 print "Error parsing treespec option"
104 sys.exit(1)
105
106if numtesters > block_size:
107 print "Error: Number of testers limited to %s because of false sharing" \
108 % (block_size)
109 sys.exit(1)
110
111if len(treespec) < 1:
112 print "Error parsing treespec"
113 sys.exit(1)
114
115# define prototype L1 cache
116proto_l1 = BaseCache(size = '32kB', assoc = 4,
117 hit_latency = 1, response_latency = 1,
118 tgts_per_mshr = 8)
119
120if options.blocking:
121 proto_l1.mshrs = 1
122else:
123 proto_l1.mshrs = 4
124
125# build a list of prototypes, one for each level of treespec, starting
126# at the end (last entry is tester objects)
| 1# Copyright (c) 2006-2007 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Ron Dreslinski
28
29import optparse
30import sys
31
32import m5
33from m5.objects import *
34
35parser = optparse.OptionParser()
36
37parser.add_option("-a", "--atomic", action="store_true",
38 help="Use atomic (non-timing) mode")
39parser.add_option("-b", "--blocking", action="store_true",
40 help="Use blocking caches")
41parser.add_option("-l", "--maxloads", metavar="N", default=0,
42 help="Stop after N loads")
43parser.add_option("-m", "--maxtick", type="int", default=m5.MaxTick,
44 metavar="T",
45 help="Stop after T ticks")
46
47#
48# The "tree" specification is a colon-separated list of one or more
49# integers. The first integer is the number of caches/testers
50# connected directly to main memory. The last integer in the list is
51# the number of testers associated with the uppermost level of memory
52# (L1 cache, if there are caches, or main memory if no caches). Thus
53# if there is only one integer, there are no caches, and the integer
54# specifies the number of testers connected directly to main memory.
55# The other integers (if any) specify the number of caches at each
56# level of the hierarchy between.
57#
58# Examples:
59#
60# "2:1" Two caches connected to memory with a single tester behind each
61# (single-level hierarchy, two testers total)
62#
63# "2:2:1" Two-level hierarchy, 2 L1s behind each of 2 L2s, 4 testers total
64#
65parser.add_option("-t", "--treespec", type="string", default="8:1",
66 help="Colon-separated multilevel tree specification, "
67 "see script comments for details "
68 "[default: %default]")
69
70parser.add_option("--force-bus", action="store_true",
71 help="Use bus between levels even with single cache")
72
73parser.add_option("-f", "--functional", type="int", default=0,
74 metavar="PCT",
75 help="Target percentage of functional accesses "
76 "[default: %default]")
77parser.add_option("-u", "--uncacheable", type="int", default=0,
78 metavar="PCT",
79 help="Target percentage of uncacheable accesses "
80 "[default: %default]")
81
82parser.add_option("--progress", type="int", default=1000,
83 metavar="NLOADS",
84 help="Progress message interval "
85 "[default: %default]")
86parser.add_option("--sys-clock", action="store", type="string",
87 default='1GHz',
88 help = """Top-level clock for blocks running at system
89 speed""")
90
91(options, args) = parser.parse_args()
92
93if args:
94 print "Error: script doesn't take any positional arguments"
95 sys.exit(1)
96
97block_size = 64
98
99try:
100 treespec = [int(x) for x in options.treespec.split(':')]
101 numtesters = reduce(lambda x,y: x*y, treespec)
102except:
103 print "Error parsing treespec option"
104 sys.exit(1)
105
106if numtesters > block_size:
107 print "Error: Number of testers limited to %s because of false sharing" \
108 % (block_size)
109 sys.exit(1)
110
111if len(treespec) < 1:
112 print "Error parsing treespec"
113 sys.exit(1)
114
115# define prototype L1 cache
116proto_l1 = BaseCache(size = '32kB', assoc = 4,
117 hit_latency = 1, response_latency = 1,
118 tgts_per_mshr = 8)
119
120if options.blocking:
121 proto_l1.mshrs = 1
122else:
123 proto_l1.mshrs = 4
124
125# build a list of prototypes, one for each level of treespec, starting
126# at the end (last entry is tester objects)
|