O3CPU.py (9920:028e4da64b42) O3CPU.py (9921:ee049bfce978)
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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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

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

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 numPhysCCRegs = Param.Unsigned(0, "Number of physical cc registers")
115 # most ISAs don't use condition-code regs, so default is 0
116 _defaultNumPhysCCRegs = 0
117 if buildEnv['TARGET_ISA'] == 'x86':
118 # For x86, each CC reg is used to hold only a subset of the
119 # flags, so we need 4-5 times the number of CC regs as
120 # physical integer regs to be sure we don't run out. In
121 # typical real machines, CC regs are not explicitly renamed
122 # (it's a side effect of int reg renaming), so they should
123 # never be the bottleneck here.
124 _defaultNumPhysCCRegs = Self.numPhysIntRegs * 5
125 numPhysCCRegs = Param.Unsigned(_defaultNumPhysCCRegs,
126 "Number of physical cc 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")

--- 26 unchanged lines hidden --- 		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")

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