1# Copyright (c) 2005-2007 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: Kevin Lim
28
29from m5.defines import buildEnv
30from m5.params import *
31from m5.proxy import *
32from BaseCPU import BaseCPU
33from FUPool import *
34from O3Checker import O3Checker
35from BranchPredictor import BranchPredictor
36
37class DerivO3CPU(BaseCPU):
38 type = 'DerivO3CPU'
39 cxx_header = 'cpu/o3/deriv.hh'
40
| 1# Copyright (c) 2005-2007 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: Kevin Lim
28
29from m5.defines import buildEnv
30from m5.params import *
31from m5.proxy import *
32from BaseCPU import BaseCPU
33from FUPool import *
34from O3Checker import O3Checker
35from BranchPredictor import BranchPredictor
36
37class DerivO3CPU(BaseCPU):
38 type = 'DerivO3CPU'
39 cxx_header = 'cpu/o3/deriv.hh'
40
|
41 activity = Param.Unsigned(0, "Initial count")
42
43 cachePorts = Param.Unsigned(200, "Cache Ports")
44
45 decodeToFetchDelay = Param.Cycles(1, "Decode to fetch delay")
46 renameToFetchDelay = Param.Cycles(1 ,"Rename to fetch delay")
47 iewToFetchDelay = Param.Cycles(1, "Issue/Execute/Writeback to fetch "
48 "delay")
49 commitToFetchDelay = Param.Cycles(1, "Commit to fetch delay")
50 fetchWidth = Param.Unsigned(8, "Fetch width")
51
52 renameToDecodeDelay = Param.Cycles(1, "Rename to decode delay")
53 iewToDecodeDelay = Param.Cycles(1, "Issue/Execute/Writeback to decode "
54 "delay")
55 commitToDecodeDelay = Param.Cycles(1, "Commit to decode delay")
56 fetchToDecodeDelay = Param.Cycles(1, "Fetch to decode delay")
57 decodeWidth = Param.Unsigned(8, "Decode width")
58
59 iewToRenameDelay = Param.Cycles(1, "Issue/Execute/Writeback to rename "
60 "delay")
61 commitToRenameDelay = Param.Cycles(1, "Commit to rename delay")
62 decodeToRenameDelay = Param.Cycles(1, "Decode to rename delay")
63 renameWidth = Param.Unsigned(8, "Rename width")
64
65 commitToIEWDelay = Param.Cycles(1, "Commit to "
66 "Issue/Execute/Writeback delay")
67 renameToIEWDelay = Param.Cycles(2, "Rename to "
68 "Issue/Execute/Writeback delay")
69 issueToExecuteDelay = Param.Cycles(1, "Issue to execute delay (internal "
70 "to the IEW stage)")
71 dispatchWidth = Param.Unsigned(8, "Dispatch width")
72 issueWidth = Param.Unsigned(8, "Issue width")
73 wbWidth = Param.Unsigned(8, "Writeback width")
74 wbDepth = Param.Unsigned(1, "Writeback depth")
75 fuPool = Param.FUPool(DefaultFUPool(), "Functional Unit pool")
76
77 iewToCommitDelay = Param.Cycles(1, "Issue/Execute/Writeback to commit "
78 "delay")
79 renameToROBDelay = Param.Cycles(1, "Rename to reorder buffer delay")
80 commitWidth = Param.Unsigned(8, "Commit width")
81 squashWidth = Param.Unsigned(8, "Squash width")
82 trapLatency = Param.Cycles(13, "Trap latency")
83 fetchTrapLatency = Param.Cycles(1, "Fetch trap latency")
84
85 backComSize = Param.Unsigned(5, "Time buffer size for backwards communication")
86 forwardComSize = Param.Unsigned(5, "Time buffer size for forward communication")
87
88 LQEntries = Param.Unsigned(32, "Number of load queue entries")
89 SQEntries = Param.Unsigned(32, "Number of store queue entries")
90 LSQDepCheckShift = Param.Unsigned(4, "Number of places to shift addr before check")
91 LSQCheckLoads = Param.Bool(True,
92 "Should dependency violations be checked for loads & stores or just stores")
93 store_set_clear_period = Param.Unsigned(250000,
94 "Number of load/store insts before the dep predictor should be invalidated")
95 LFSTSize = Param.Unsigned(1024, "Last fetched store table size")
96 SSITSize = Param.Unsigned(1024, "Store set ID table size")
97
98 numRobs = Param.Unsigned(1, "Number of Reorder Buffers");
99
100 numPhysIntRegs = Param.Unsigned(256, "Number of physical integer registers")
101 numPhysFloatRegs = Param.Unsigned(256, "Number of physical floating point "
102 "registers")
103 numIQEntries = Param.Unsigned(64, "Number of instruction queue entries")
104 numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")
105
106 smtNumFetchingThreads = Param.Unsigned(1, "SMT Number of Fetching Threads")
107 smtFetchPolicy = Param.String('SingleThread', "SMT Fetch policy")
108 smtLSQPolicy = Param.String('Partitioned', "SMT LSQ Sharing Policy")
109 smtLSQThreshold = Param.Int(100, "SMT LSQ Threshold Sharing Parameter")
110 smtIQPolicy = Param.String('Partitioned', "SMT IQ Sharing Policy")
111 smtIQThreshold = Param.Int(100, "SMT IQ Threshold Sharing Parameter")
112 smtROBPolicy = Param.String('Partitioned', "SMT ROB Sharing Policy")
113 smtROBThreshold = Param.Int(100, "SMT ROB Threshold Sharing Parameter")
114 smtCommitPolicy = Param.String('RoundRobin', "SMT Commit Policy")
115
116 branchPred = BranchPredictor(numThreads = Parent.numThreads)
117 needsTSO = Param.Bool(buildEnv['TARGET_ISA'] == 'x86',
118 "Enable TSO Memory model")
119
120 def addCheckerCpu(self):
121 if buildEnv['TARGET_ISA'] in ['arm']:
122 from ArmTLB import ArmTLB
123
124 self.checker = O3Checker(workload=self.workload,
125 exitOnError=False,
126 updateOnError=True,
127 warnOnlyOnLoadError=True)
128 self.checker.itb = ArmTLB(size = self.itb.size)
129 self.checker.dtb = ArmTLB(size = self.dtb.size)
130 self.checker.cpu_id = self.cpu_id
131
132 else:
133 print "ERROR: Checker only supported under ARM ISA!"
134 exit(1)
| 53 activity = Param.Unsigned(0, "Initial count")
54
55 cachePorts = Param.Unsigned(200, "Cache Ports")
56
57 decodeToFetchDelay = Param.Cycles(1, "Decode to fetch delay")
58 renameToFetchDelay = Param.Cycles(1 ,"Rename to fetch delay")
59 iewToFetchDelay = Param.Cycles(1, "Issue/Execute/Writeback to fetch "
60 "delay")
61 commitToFetchDelay = Param.Cycles(1, "Commit to fetch delay")
62 fetchWidth = Param.Unsigned(8, "Fetch width")
63
64 renameToDecodeDelay = Param.Cycles(1, "Rename to decode delay")
65 iewToDecodeDelay = Param.Cycles(1, "Issue/Execute/Writeback to decode "
66 "delay")
67 commitToDecodeDelay = Param.Cycles(1, "Commit to decode delay")
68 fetchToDecodeDelay = Param.Cycles(1, "Fetch to decode delay")
69 decodeWidth = Param.Unsigned(8, "Decode width")
70
71 iewToRenameDelay = Param.Cycles(1, "Issue/Execute/Writeback to rename "
72 "delay")
73 commitToRenameDelay = Param.Cycles(1, "Commit to rename delay")
74 decodeToRenameDelay = Param.Cycles(1, "Decode to rename delay")
75 renameWidth = Param.Unsigned(8, "Rename width")
76
77 commitToIEWDelay = Param.Cycles(1, "Commit to "
78 "Issue/Execute/Writeback delay")
79 renameToIEWDelay = Param.Cycles(2, "Rename to "
80 "Issue/Execute/Writeback delay")
81 issueToExecuteDelay = Param.Cycles(1, "Issue to execute delay (internal "
82 "to the IEW stage)")
83 dispatchWidth = Param.Unsigned(8, "Dispatch width")
84 issueWidth = Param.Unsigned(8, "Issue width")
85 wbWidth = Param.Unsigned(8, "Writeback width")
86 wbDepth = Param.Unsigned(1, "Writeback depth")
87 fuPool = Param.FUPool(DefaultFUPool(), "Functional Unit pool")
88
89 iewToCommitDelay = Param.Cycles(1, "Issue/Execute/Writeback to commit "
90 "delay")
91 renameToROBDelay = Param.Cycles(1, "Rename to reorder buffer delay")
92 commitWidth = Param.Unsigned(8, "Commit width")
93 squashWidth = Param.Unsigned(8, "Squash width")
94 trapLatency = Param.Cycles(13, "Trap latency")
95 fetchTrapLatency = Param.Cycles(1, "Fetch trap latency")
96
97 backComSize = Param.Unsigned(5, "Time buffer size for backwards communication")
98 forwardComSize = Param.Unsigned(5, "Time buffer size for forward communication")
99
100 LQEntries = Param.Unsigned(32, "Number of load queue entries")
101 SQEntries = Param.Unsigned(32, "Number of store queue entries")
102 LSQDepCheckShift = Param.Unsigned(4, "Number of places to shift addr before check")
103 LSQCheckLoads = Param.Bool(True,
104 "Should dependency violations be checked for loads & stores or just stores")
105 store_set_clear_period = Param.Unsigned(250000,
106 "Number of load/store insts before the dep predictor should be invalidated")
107 LFSTSize = Param.Unsigned(1024, "Last fetched store table size")
108 SSITSize = Param.Unsigned(1024, "Store set ID table size")
109
110 numRobs = Param.Unsigned(1, "Number of Reorder Buffers");
111
112 numPhysIntRegs = Param.Unsigned(256, "Number of physical integer registers")
113 numPhysFloatRegs = Param.Unsigned(256, "Number of physical floating point "
114 "registers")
115 numIQEntries = Param.Unsigned(64, "Number of instruction queue entries")
116 numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")
117
118 smtNumFetchingThreads = Param.Unsigned(1, "SMT Number of Fetching Threads")
119 smtFetchPolicy = Param.String('SingleThread', "SMT Fetch policy")
120 smtLSQPolicy = Param.String('Partitioned', "SMT LSQ Sharing Policy")
121 smtLSQThreshold = Param.Int(100, "SMT LSQ Threshold Sharing Parameter")
122 smtIQPolicy = Param.String('Partitioned', "SMT IQ Sharing Policy")
123 smtIQThreshold = Param.Int(100, "SMT IQ Threshold Sharing Parameter")
124 smtROBPolicy = Param.String('Partitioned', "SMT ROB Sharing Policy")
125 smtROBThreshold = Param.Int(100, "SMT ROB Threshold Sharing Parameter")
126 smtCommitPolicy = Param.String('RoundRobin', "SMT Commit Policy")
127
128 branchPred = BranchPredictor(numThreads = Parent.numThreads)
129 needsTSO = Param.Bool(buildEnv['TARGET_ISA'] == 'x86',
130 "Enable TSO Memory model")
131
132 def addCheckerCpu(self):
133 if buildEnv['TARGET_ISA'] in ['arm']:
134 from ArmTLB import ArmTLB
135
136 self.checker = O3Checker(workload=self.workload,
137 exitOnError=False,
138 updateOnError=True,
139 warnOnlyOnLoadError=True)
140 self.checker.itb = ArmTLB(size = self.itb.size)
141 self.checker.dtb = ArmTLB(size = self.dtb.size)
142 self.checker.cpu_id = self.cpu_id
143
144 else:
145 print "ERROR: Checker only supported under ARM ISA!"
146 exit(1)
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