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 @classmethod
42 def memory_mode(cls):
43 return 'timing'
44
45 @classmethod
46 def require_caches(cls):
47 return True
48
49 @classmethod
50 def support_take_over(cls):
51 return True
52
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")
| 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 @classmethod
42 def memory_mode(cls):
43 return 'timing'
44
45 @classmethod
46 def require_caches(cls):
47 return True
48
49 @classmethod
50 def support_take_over(cls):
51 return True
52
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")
|
116 numIQEntries = Param.Unsigned(64, "Number of instruction queue entries")
117 numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")
118
119 smtNumFetchingThreads = Param.Unsigned(1, "SMT Number of Fetching Threads")
120 smtFetchPolicy = Param.String('SingleThread', "SMT Fetch policy")
121 smtLSQPolicy = Param.String('Partitioned', "SMT LSQ Sharing Policy")
122 smtLSQThreshold = Param.Int(100, "SMT LSQ Threshold Sharing Parameter")
123 smtIQPolicy = Param.String('Partitioned', "SMT IQ Sharing Policy")
124 smtIQThreshold = Param.Int(100, "SMT IQ Threshold Sharing Parameter")
125 smtROBPolicy = Param.String('Partitioned', "SMT ROB Sharing Policy")
126 smtROBThreshold = Param.Int(100, "SMT ROB Threshold Sharing Parameter")
127 smtCommitPolicy = Param.String('RoundRobin', "SMT Commit Policy")
128
129 branchPred = Param.BranchPredictor(BranchPredictor(numThreads =
130 Parent.numThreads),
131 "Branch Predictor")
132 needsTSO = Param.Bool(buildEnv['TARGET_ISA'] == 'x86',
133 "Enable TSO Memory model")
134
135 def addCheckerCpu(self):
136 if buildEnv['TARGET_ISA'] in ['arm']:
137 from ArmTLB import ArmTLB
138
139 self.checker = O3Checker(workload=self.workload,
140 exitOnError=False,
141 updateOnError=True,
142 warnOnlyOnLoadError=True)
143 self.checker.itb = ArmTLB(size = self.itb.size)
144 self.checker.dtb = ArmTLB(size = self.dtb.size)
145 self.checker.cpu_id = self.cpu_id
146
147 else:
148 print "ERROR: Checker only supported under ARM ISA!"
149 exit(1)
| 127 numIQEntries = Param.Unsigned(64, "Number of instruction queue entries")
128 numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")
129
130 smtNumFetchingThreads = Param.Unsigned(1, "SMT Number of Fetching Threads")
131 smtFetchPolicy = Param.String('SingleThread', "SMT Fetch policy")
132 smtLSQPolicy = Param.String('Partitioned', "SMT LSQ Sharing Policy")
133 smtLSQThreshold = Param.Int(100, "SMT LSQ Threshold Sharing Parameter")
134 smtIQPolicy = Param.String('Partitioned', "SMT IQ Sharing Policy")
135 smtIQThreshold = Param.Int(100, "SMT IQ Threshold Sharing Parameter")
136 smtROBPolicy = Param.String('Partitioned', "SMT ROB Sharing Policy")
137 smtROBThreshold = Param.Int(100, "SMT ROB Threshold Sharing Parameter")
138 smtCommitPolicy = Param.String('RoundRobin', "SMT Commit Policy")
139
140 branchPred = Param.BranchPredictor(BranchPredictor(numThreads =
141 Parent.numThreads),
142 "Branch Predictor")
143 needsTSO = Param.Bool(buildEnv['TARGET_ISA'] == 'x86',
144 "Enable TSO Memory model")
145
146 def addCheckerCpu(self):
147 if buildEnv['TARGET_ISA'] in ['arm']:
148 from ArmTLB import ArmTLB
149
150 self.checker = O3Checker(workload=self.workload,
151 exitOnError=False,
152 updateOnError=True,
153 warnOnlyOnLoadError=True)
154 self.checker.itb = ArmTLB(size = self.itb.size)
155 self.checker.dtb = ArmTLB(size = self.dtb.size)
156 self.checker.cpu_id = self.cpu_id
157
158 else:
159 print "ERROR: Checker only supported under ARM ISA!"
160 exit(1)
|