Cross Reference: /gem5/src/cpu/pred/BranchPredictor.py

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BranchPredictor.py (9691:b1be1df904c9)	BranchPredictor.py (10244:d2deb51a4abf)
1# Copyright (c) 2012 Mark D. Hill and David A. Wood 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 --- 22 unchanged lines hidden (view full) --- 31 32class BranchPredictor(SimObject): 33 type = 'BranchPredictor' 34 cxx_class = 'BPredUnit' 35 cxx_header = "cpu/pred/bpred_unit.hh" 36 37 numThreads = Param.Unsigned(1, "Number of threads") 38 predType = Param.String("tournament",	1# Copyright (c) 2012 Mark D. Hill and David A. Wood 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 --- 22 unchanged lines hidden (view full) --- 31 32class BranchPredictor(SimObject): 33 type = 'BranchPredictor' 34 cxx_class = 'BPredUnit' 35 cxx_header = "cpu/pred/bpred_unit.hh" 36 37 numThreads = Param.Unsigned(1, "Number of threads") 38 predType = Param.String("tournament",
39 "Branch predictor type ('local', 'tournament')")	39 "Branch predictor type ('local', 'tournament', 'bi-mode')")
40 localPredictorSize = Param.Unsigned(2048, "Size of local predictor") 41 localCtrBits = Param.Unsigned(2, "Bits per counter") 42 localHistoryTableSize = Param.Unsigned(2048, "Size of local history table") 43 globalPredictorSize = Param.Unsigned(8192, "Size of global predictor") 44 globalCtrBits = Param.Unsigned(2, "Bits per counter") 45 choicePredictorSize = Param.Unsigned(8192, "Size of choice predictor") 46 choiceCtrBits = Param.Unsigned(2, "Bits of choice counters") 47 48 BTBEntries = Param.Unsigned(4096, "Number of BTB entries") 49 BTBTagSize = Param.Unsigned(16, "Size of the BTB tags, in bits") 50 51 RASSize = Param.Unsigned(16, "RAS size") 52 instShiftAmt = Param.Unsigned(2, "Number of bits to shift instructions by")	40 localPredictorSize = Param.Unsigned(2048, "Size of local predictor") 41 localCtrBits = Param.Unsigned(2, "Bits per counter") 42 localHistoryTableSize = Param.Unsigned(2048, "Size of local history table") 43 globalPredictorSize = Param.Unsigned(8192, "Size of global predictor") 44 globalCtrBits = Param.Unsigned(2, "Bits per counter") 45 choicePredictorSize = Param.Unsigned(8192, "Size of choice predictor") 46 choiceCtrBits = Param.Unsigned(2, "Bits of choice counters") 47 48 BTBEntries = Param.Unsigned(4096, "Number of BTB entries") 49 BTBTagSize = Param.Unsigned(16, "Size of the BTB tags, in bits") 50 51 RASSize = Param.Unsigned(16, "RAS size") 52 instShiftAmt = Param.Unsigned(2, "Number of bits to shift instructions by")