O3CPU.py (10934:5af8f40d8f2c) O3CPU.py (10935:acd48ddd725f)
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

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109 LFSTSize = Param.Unsigned(1024, "Last fetched store table size")
110 SSITSize = Param.Unsigned(1024, "Store set ID table size")
111
112 numRobs = Param.Unsigned(1, "Number of Reorder Buffers");
113
114 numPhysIntRegs = Param.Unsigned(256, "Number of physical integer registers")
115 numPhysFloatRegs = Param.Unsigned(256, "Number of physical floating point "
116 "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

--- 100 unchanged lines hidden (view full) ---

109 LFSTSize = Param.Unsigned(1024, "Last fetched store table size")
110 SSITSize = Param.Unsigned(1024, "Store set ID table size")
111
112 numRobs = Param.Unsigned(1, "Number of Reorder Buffers");
113
114 numPhysIntRegs = Param.Unsigned(256, "Number of physical integer registers")
115 numPhysFloatRegs = Param.Unsigned(256, "Number of physical floating point "
116 "registers")
117
118 # most ISAs don't use condition-code regs, so default is 0
119 _defaultNumPhysCCRegs = 0
120 if buildEnv['TARGET_ISA'] in ('arm','x86'):
121 # For x86, each CC reg is used to hold only a subset of the
122 # flags, so we need 4-5 times the number of CC regs as
123 # physical integer regs to be sure we don't run out. In
124 # typical real machines, CC regs are not explicitly renamed
125 # (it's a side effect of int reg renaming), so they should
126 # never be the bottleneck here.
127 _defaultNumPhysCCRegs = Self.numPhysIntRegs * 5
128 numPhysCCRegs = Param.Unsigned(_defaultNumPhysCCRegs,
129 "Number of physical cc registers")
117 # most ISAs don't use condition-code regs, so default is 0
118 _defaultNumPhysCCRegs = 0
119 if buildEnv['TARGET_ISA'] in ('arm','x86'):
120 # For x86, each CC reg is used to hold only a subset of the
121 # flags, so we need 4-5 times the number of CC regs as
122 # physical integer regs to be sure we don't run out. In
123 # typical real machines, CC regs are not explicitly renamed
124 # (it's a side effect of int reg renaming), so they should
125 # never be the bottleneck here.
126 _defaultNumPhysCCRegs = Self.numPhysIntRegs * 5
127 numPhysCCRegs = Param.Unsigned(_defaultNumPhysCCRegs,
128 "Number of physical cc registers")
130
131 # most ISAs don't use vector regs, so default is 0
132 _defaultNumPhysVectorRegs = 0
133 numPhysVectorRegs = Param.Unsigned(_defaultNumPhysVectorRegs,
134 "Number of physical vector registers")
135
136 numIQEntries = Param.Unsigned(64, "Number of instruction queue entries")
137 numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")
138
139 smtNumFetchingThreads = Param.Unsigned(1, "SMT Number of Fetching Threads")
140 smtFetchPolicy = Param.String('SingleThread', "SMT Fetch policy")
141 smtLSQPolicy = Param.String('Partitioned', "SMT LSQ Sharing Policy")
142 smtLSQThreshold = Param.Int(100, "SMT LSQ Threshold Sharing Parameter")
143 smtIQPolicy = Param.String('Partitioned', "SMT IQ Sharing Policy")

--- 26 unchanged lines hidden --- 		129 numIQEntries = Param.Unsigned(64, "Number of instruction queue entries")
130 numROBEntries = Param.Unsigned(192, "Number of reorder buffer entries")
131
132 smtNumFetchingThreads = Param.Unsigned(1, "SMT Number of Fetching Threads")
133 smtFetchPolicy = Param.String('SingleThread', "SMT Fetch policy")
134 smtLSQPolicy = Param.String('Partitioned', "SMT LSQ Sharing Policy")
135 smtLSQThreshold = Param.Int(100, "SMT LSQ Threshold Sharing Parameter")
136 smtIQPolicy = Param.String('Partitioned', "SMT IQ Sharing Policy")

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