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Diffstat (limited to 'configs')
| -rw-r--r-- | configs/common/O3_ARM_v7a.py | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/configs/common/O3_ARM_v7a.py b/configs/common/O3_ARM_v7a.py new file mode 100644 index 000000000..a2b769f27 --- /dev/null +++ b/configs/common/O3_ARM_v7a.py @@ -0,0 +1,199 @@ +# Copyright (c) 2012 The Regents of The University of Michigan +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer; +# redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution; +# neither the name of the copyright holders nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# +# Authors: Ron Dreslinski + + +from m5.objects import * + +# Simple ALU Instructions have a latency of 1 +class O3_ARM_v7a_Simple_Int(FUDesc): + opList = [ OpDesc(opClass='IntAlu', opLat=1) ] + count = 2 + +# Complex ALU instructions have a variable latencies +class O3_ARM_v7a_Complex_Int(FUDesc): + opList = [ OpDesc(opClass='IntMult', opLat=3, issueLat=1), + OpDesc(opClass='IntDiv', opLat=12, issueLat=12), + OpDesc(opClass='IprAccess', opLat=3, issueLat=1) ] + count = 1 + + +# Floating point and SIMD instructions +class O3_ARM_v7a_FP(FUDesc): + opList = [ OpDesc(opClass='SimdAdd', opLat=4), + OpDesc(opClass='SimdAddAcc', opLat=4), + OpDesc(opClass='SimdAlu', opLat=4), + OpDesc(opClass='SimdCmp', opLat=4), + OpDesc(opClass='SimdCvt', opLat=3), + OpDesc(opClass='SimdMisc', opLat=3), + OpDesc(opClass='SimdMult',opLat=5), + OpDesc(opClass='SimdMultAcc',opLat=5), + OpDesc(opClass='SimdShift',opLat=3), + OpDesc(opClass='SimdShiftAcc', opLat=3), + OpDesc(opClass='SimdSqrt', opLat=9), + OpDesc(opClass='SimdFloatAdd',opLat=5), + OpDesc(opClass='SimdFloatAlu',opLat=5), + OpDesc(opClass='SimdFloatCmp', opLat=3), + OpDesc(opClass='SimdFloatCvt', opLat=3), + OpDesc(opClass='SimdFloatDiv', opLat=3), + OpDesc(opClass='SimdFloatMisc', opLat=3), + OpDesc(opClass='SimdFloatMult', opLat=3), + OpDesc(opClass='SimdFloatMultAcc',opLat=1), + OpDesc(opClass='SimdFloatSqrt', opLat=9), + OpDesc(opClass='FloatAdd', opLat=5), + OpDesc(opClass='FloatCmp', opLat=5), + OpDesc(opClass='FloatCvt', opLat=5), + OpDesc(opClass='FloatDiv', opLat=9, issueLat=9), + OpDesc(opClass='FloatSqrt', opLat=33, issueLat=33), + OpDesc(opClass='FloatMult', opLat=4) ] + count = 2 + + +# Load/Store Units +class O3_ARM_v7a_Load(FUDesc): + opList = [ OpDesc(opClass='MemRead',opLat=2) ] + count = 1 + +class O3_ARM_v7a_Store(FUDesc): + opList = [OpDesc(opClass='MemWrite',opLat=2) ] + count = 1 + +# Functional Units for this CPU +class O3_ARM_v7a_FUP(FUPool): + FUList = [O3_ARM_v7a_Simple_Int(), O3_ARM_v7a_Complex_Int(), + O3_ARM_v7a_Load(), O3_ARM_v7a_Store(), O3_ARM_v7a_FP()] + + +class O3_ARM_v7a_3(DerivO3CPU): + predType = "tournament" + localPredictorSize = 64 + localCtrBits = 2 + localHistoryTableSize = 64 + localHistoryBits = 6 + globalPredictorSize = 8192 + globalCtrBits = 2 + globalHistoryBits = 13 + choicePredictorSize = 8192 + choiceCtrBits = 2 + BTBEntries = 2048 + BTBTagSize = 18 + RASSize = 16 + instShiftAmt = 2 + LQEntries = 16 + SQEntries = 16 + LSQDepCheckShift = 0 + LFSTSize = 1024 + SSITSize = 1024 + decodeToFetchDelay = 1 + renameToFetchDelay = 1 + iewToFetchDelay = 1 + commitToFetchDelay = 1 + renameToDecodeDelay = 1 + iewToDecodeDelay = 1 + commitToDecodeDelay = 1 + iewToRenameDelay = 1 + commitToRenameDelay = 1 + commitToIEWDelay = 1 + fetchWidth = 3 + fetchToDecodeDelay = 3 + decodeWidth = 3 + decodeToRenameDelay = 2 + renameWidth = 3 + renameToIEWDelay = 1 + issueToExecuteDelay = 1 + dispatchWidth = 6 + issueWidth = 8 + wbWidth = 8 + wbDepth = 1 + fuPool = O3_ARM_v7a_FUP() + iewToCommitDelay = 1 + renameToROBDelay = 1 + commitWidth = 8 + squashWidth = 8 + trapLatency = 13 + backComSize = 5 + forwardComSize = 5 + numPhysIntRegs = 128 + numPhysFloatRegs = 128 + numIQEntries = 32 + numROBEntries = 40 + + defer_registration= False + +# Instruction Cache +# All latencys assume a 1GHz clock rate, with a faster clock they would be faster +class O3_ARM_v7a_ICache(BaseCache): + latency = '1ns' + block_size = 64 + mshrs = 2 + tgts_per_mshr = 8 + size = '32kB' + assoc = 2 + is_top_level = 'true' + +# Data Cache +# All latencys assume a 1GHz clock rate, with a faster clock they would be faster +class O3_ARM_v7a_DCache(BaseCache): + latency = '2ns' + block_size = 64 + mshrs = 6 + tgts_per_mshr = 8 + size = '32kB' + assoc = 2 + write_buffers = 16 + is_top_level = 'true' + +# TLB Cache +# Use a cache as a L2 TLB +class O3_ARM_v7aWalkCache(BaseCache): + latency = '4ns' + block_size = 64 + mshrs = 6 + tgts_per_mshr = 8 + size = '1kB' + assoc = 8 + write_buffers = 16 + is_top_level = 'true' + + +# L2 Cache +# All latencys assume a 1GHz clock rate, with a faster clock they would be faster +class O3_ARM_v7aL2(BaseCache): + latency = '12ns' + block_size = 64 + mshrs = 16 + tgts_per_mshr = 8 + size = '1MB' + assoc = 16 + write_buffers = 8 + # Simple stride prefetcher + prefetch_policy = 'stride' + prefetch_on_access = 'true' + prefetch_latency = '1.0ns' + prefetch_degree = 8 + + |