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authorAndreas Sandberg <andreas.sandberg@arm.com>2017-06-26 14:35:17 +0100
committerAndreas Sandberg <andreas.sandberg@arm.com>2017-07-03 09:47:19 +0000
commit3212bdf3a89addef371bd7d3f43c322b002644db (patch)
tree1fed0da5283d032453be081f9f7ec7fd77904a85 /configs/common/ex5_big.py
parent90c7e56bf407a180fb4d9b4c7721066480836473 (diff)
downloadgem5-3212bdf3a89addef371bd7d3f43c322b002644db.tar.xz
config: Move core timing models to config/common/cores
Change-Id: I189b6462cc64f7cc6c1b7a6c2af1abb60e1854de Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Gabor Dozsa <gabor.dozsa@arm.com> Reviewed-on: https://gem5-review.googlesource.com/3943 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
Diffstat (limited to 'configs/common/ex5_big.py')
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diff --git a/configs/common/ex5_big.py b/configs/common/ex5_big.py
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-# Copyright (c) 2012 The Regents of The University of Michigan
-# Copyright (c) 2016 Centre National de la Recherche Scientifique
-# 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
-# Anastasiia Butko
-# Louisa Bessad
-
-from m5.objects import *
-
-#-----------------------------------------------------------------------
-# ex5 big core (based on the ARM Cortex-A15)
-#-----------------------------------------------------------------------
-
-# Simple ALU Instructions have a latency of 1
-class ex5_big_Simple_Int(FUDesc):
- opList = [ OpDesc(opClass='IntAlu', opLat=1) ]
- count = 2
-
-# Complex ALU instructions have a variable latencies
-class ex5_big_Complex_Int(FUDesc):
- opList = [ OpDesc(opClass='IntMult', opLat=4, pipelined=True),
- OpDesc(opClass='IntDiv', opLat=11, pipelined=False),
- OpDesc(opClass='IprAccess', opLat=3, pipelined=True) ]
- count = 1
-
-# Floating point and SIMD instructions
-class ex5_big_FP(FUDesc):
- opList = [ OpDesc(opClass='SimdAdd', opLat=3),
- 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=6),
- OpDesc(opClass='SimdMultAcc',opLat=5),
- OpDesc(opClass='SimdShift',opLat=3),
- OpDesc(opClass='SimdShiftAcc', opLat=3),
- OpDesc(opClass='SimdSqrt', opLat=9),
- OpDesc(opClass='SimdFloatAdd',opLat=6),
- OpDesc(opClass='SimdFloatAlu',opLat=5),
- OpDesc(opClass='SimdFloatCmp', opLat=3),
- OpDesc(opClass='SimdFloatCvt', opLat=3),
- OpDesc(opClass='SimdFloatDiv', opLat=21),
- OpDesc(opClass='SimdFloatMisc', opLat=3),
- OpDesc(opClass='SimdFloatMult', opLat=6),
- OpDesc(opClass='SimdFloatMultAcc',opLat=1),
- OpDesc(opClass='SimdFloatSqrt', opLat=9),
- OpDesc(opClass='FloatAdd', opLat=6),
- OpDesc(opClass='FloatCmp', opLat=5),
- OpDesc(opClass='FloatCvt', opLat=5),
- OpDesc(opClass='FloatDiv', opLat=12, pipelined=False),
- OpDesc(opClass='FloatSqrt', opLat=33, pipelined=False),
- OpDesc(opClass='FloatMult', opLat=8) ]
- count = 2
-
-
-# Load/Store Units
-class ex5_big_Load(FUDesc):
- opList = [ OpDesc(opClass='MemRead',opLat=2) ]
- count = 1
-
-class ex5_big_Store(FUDesc):
- opList = [OpDesc(opClass='MemWrite',opLat=2) ]
- count = 1
-
-# Functional Units for this CPU
-class ex5_big_FUP(FUPool):
- FUList = [ex5_big_Simple_Int(), ex5_big_Complex_Int(),
- ex5_big_Load(), ex5_big_Store(), ex5_big_FP()]
-
-# Bi-Mode Branch Predictor
-class ex5_big_BP(BiModeBP):
- globalPredictorSize = 4096
- globalCtrBits = 2
- choicePredictorSize = 1024
- choiceCtrBits = 3
- BTBEntries = 4096
- BTBTagSize = 18
- RASSize = 48
- instShiftAmt = 2
-
-class ex5_big(DerivO3CPU):
- 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
- fetchBufferSize = 16
- fetchToDecodeDelay = 3
- decodeWidth = 3
- decodeToRenameDelay = 2
- renameWidth = 3
- renameToIEWDelay = 1
- issueToExecuteDelay = 1
- dispatchWidth = 6
- issueWidth = 8
- wbWidth = 8
- fuPool = ex5_big_FUP()
- iewToCommitDelay = 1
- renameToROBDelay = 1
- commitWidth = 8
- squashWidth = 8
- trapLatency = 13
- backComSize = 5
- forwardComSize = 5
- numPhysIntRegs = 90
- numPhysFloatRegs = 256
- numIQEntries = 48
- numROBEntries = 60
-
- switched_out = False
- branchPred = ex5_big_BP()
-
-class L1Cache(Cache):
- tag_latency = 2
- data_latency = 2
- response_latency = 2
- tgts_per_mshr = 8
- # Consider the L2 a victim cache also for clean lines
- writeback_clean = True
-
-# Instruction Cache
-class L1I(L1Cache):
- mshrs = 2
- size = '32kB'
- assoc = 2
- is_read_only = True
-
-# Data Cache
-class L1D(L1Cache):
- mshrs = 6
- size = '32kB'
- assoc = 2
- write_buffers = 16
-
-# TLB Cache
-# Use a cache as a L2 TLB
-class WalkCache(Cache):
- tag_latency = 4
- data_latency = 4
- response_latency = 4
- mshrs = 6
- tgts_per_mshr = 8
- size = '1kB'
- assoc = 8
- write_buffers = 16
- is_read_only = True
- # Writeback clean lines as well
- writeback_clean = True
-
-# L2 Cache
-class L2(Cache):
- tag_latency = 15
- data_latency = 15
- response_latency = 15
- mshrs = 16
- tgts_per_mshr = 8
- size = '2MB'
- assoc = 16
- write_buffers = 8
- prefetch_on_access = True
- clusivity = 'mostly_excl'
- # Simple stride prefetcher
- prefetcher = StridePrefetcher(degree=8, latency = 1)
- tags = RandomRepl()