except:
pass
+# The calibrated ex5-model cores
+try:
+ from ex5_LITTLE import ex5_LITTLE
+ _cpu_classes["ex5_LITTLE"] = ex5_LITTLE
+except:
+ pass
+
+try:
+ from ex5_big import ex5_big
+ _cpu_classes["ex5_big"] = ex5_big
+except:
+ pass
+
+
# Add all CPUs in the object hierarchy.
for name, cls in inspect.getmembers(m5.objects, is_cpu_class):
_cpu_classes[name] = cls
--- /dev/null
+# 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 *
+from O3_ARM_v7a import *
+from Caches import *
+
+#-----------------------------------------------------------------------
+# ex5 LITTLE core (based on the ARM Cortex-A7)
+#-----------------------------------------------------------------------
+
+# Simple ALU Instructions have a latency of 3
+class ex5_LITTLE_Simple_Int(MinorDefaultIntFU):
+ opList = [ OpDesc(opClass='IntAlu', opLat=4) ]
+
+# Complex ALU instructions have a variable latencies
+class ex5_LITTLE_Complex_IntMul(MinorDefaultIntMulFU):
+ opList = [ OpDesc(opClass='IntMult', opLat=7) ]
+
+class ex5_LITTLE_Complex_IntDiv(MinorDefaultIntDivFU):
+ opList = [ OpDesc(opClass='IntDiv', opLat=9) ]
+
+# Floating point and SIMD instructions
+class ex5_LITTLE_FP(MinorDefaultFloatSimdFU):
+ opList = [ OpDesc(opClass='SimdAdd', opLat=6),
+ OpDesc(opClass='SimdAddAcc', opLat=4),
+ OpDesc(opClass='SimdAlu', opLat=4),
+ OpDesc(opClass='SimdCmp', opLat=1),
+ OpDesc(opClass='SimdCvt', opLat=3),
+ OpDesc(opClass='SimdMisc', opLat=3),
+ OpDesc(opClass='SimdMult',opLat=4),
+ OpDesc(opClass='SimdMultAcc',opLat=5),
+ OpDesc(opClass='SimdShift',opLat=3),
+ OpDesc(opClass='SimdShiftAcc', opLat=3),
+ OpDesc(opClass='SimdSqrt', opLat=9),
+ OpDesc(opClass='SimdFloatAdd',opLat=8),
+ OpDesc(opClass='SimdFloatAlu',opLat=6),
+ OpDesc(opClass='SimdFloatCmp', opLat=6),
+ OpDesc(opClass='SimdFloatCvt', opLat=6),
+ OpDesc(opClass='SimdFloatDiv', opLat=20, pipelined=False),
+ OpDesc(opClass='SimdFloatMisc', opLat=6),
+ OpDesc(opClass='SimdFloatMult', opLat=15),
+ OpDesc(opClass='SimdFloatMultAcc',opLat=6),
+ OpDesc(opClass='SimdFloatSqrt', opLat=17),
+ OpDesc(opClass='FloatAdd', opLat=8),
+ OpDesc(opClass='FloatCmp', opLat=6),
+ OpDesc(opClass='FloatCvt', opLat=6),
+ OpDesc(opClass='FloatDiv', opLat=15, pipelined=False),
+ OpDesc(opClass='FloatSqrt', opLat=33),
+ OpDesc(opClass='FloatMult', opLat=6) ]
+
+# Load/Store Units
+class ex5_LITTLE_MemFU(MinorDefaultMemFU):
+ opList = [ OpDesc(opClass='MemRead',opLat=1),
+ OpDesc(opClass='MemWrite',opLat=1) ]
+
+# Misc Unit
+class ex5_LITTLE_MiscFU(MinorDefaultMiscFU):
+ opList = [ OpDesc(opClass='IprAccess',opLat=1),
+ OpDesc(opClass='InstPrefetch',opLat=1) ]
+
+# Functional Units for this CPU
+class ex5_LITTLE_FUP(MinorFUPool):
+ funcUnits = [ex5_LITTLE_Simple_Int(), ex5_LITTLE_Simple_Int(),
+ ex5_LITTLE_Complex_IntMul(), ex5_LITTLE_Complex_IntDiv(),
+ ex5_LITTLE_FP(), ex5_LITTLE_MemFU(),
+ ex5_LITTLE_MiscFU()]
+
+class ex5_LITTLE(MinorCPU):
+ executeFuncUnits = ex5_LITTLE_FUP()
+
+class L1I(L1Cache):
+ tag_latency = 2
+ data_latency = 2
+ response_latency = 2
+ mshrs = 2
+ size = '32kB'
+ assoc = 2
+ is_read_only = True
+ # Writeback clean lines as well
+ writeback_clean = True
+
+class L1D(L1Cache):
+ tag_latency = 2
+ data_latency = 2
+ response_latency = 2
+ mshrs = 4
+ tgts_per_mshr = 8
+ size = '32kB'
+ assoc = 4
+ write_buffers = 4
+ # Consider the L2 a victim cache also for clean lines
+ writeback_clean = True
+
+# TLB Cache
+# Use a cache as a L2 TLB
+class WalkCache(PageTableWalkerCache):
+ tag_latency = 2
+ data_latency = 2
+ response_latency = 2
+ mshrs = 6
+ tgts_per_mshr = 8
+ size = '1kB'
+ assoc = 2
+ write_buffers = 16
+ is_read_only = True
+ # Writeback clean lines as well
+ writeback_clean = True
+
+# L2 Cache
+class L2(L2Cache):
+ tag_latency = 9
+ data_latency = 9
+ response_latency = 9
+ mshrs = 8
+ tgts_per_mshr = 12
+ size = '512kB'
+ assoc = 8
+ write_buffers = 16
+ prefetch_on_access = True
+ clusivity = 'mostly_excl'
+ # Simple stride prefetcher
+ prefetcher = StridePrefetcher(degree=1, latency = 1)
+ tags = RandomRepl()
+
+
--- /dev/null
+# 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 *
+from O3_ARM_v7a import *
+from Caches import *
+
+#-----------------------------------------------------------------------
+# ex5 big core (based on the ARM Cortex-A15)
+#-----------------------------------------------------------------------
+
+# Simple ALU Instructions have a latency of 1
+class ex5_big_Simple_Int(O3_ARM_v7a_Simple_Int):
+ opList = [ OpDesc(opClass='IntAlu', opLat=1) ]
+ count = 2
+
+# Complex ALU instructions have a variable latencies
+class ex5_big_Complex_Int(O3_ARM_v7a_Complex_Int):
+ 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(O3_ARM_v7a_FP):
+ 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(O3_ARM_v7a_Load):
+ opList = [ OpDesc(opClass='MemRead',opLat=2) ]
+ count = 1
+
+class ex5_big_Store(O3_ARM_v7a_Store):
+ opList = [OpDesc(opClass='MemWrite',opLat=2) ]
+ count = 1
+
+# Functional Units for this CPU
+class ex5_big_FUP(O3_ARM_v7a_FUP):
+ 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(O3_ARM_v7a_BP):
+ globalPredictorSize = 4096
+ globalCtrBits = 2
+ choicePredictorSize = 1024
+ choiceCtrBits = 3
+ BTBEntries = 4096
+ BTBTagSize = 18
+ RASSize = 48
+ instShiftAmt = 2
+
+class ex5_big(O3_ARM_v7a_3):
+ 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()
+
+# Instruction Cache
+class L1I(O3_ARM_v7a_ICache):
+ tag_latency = 2
+ data_latency = 2
+ response_latency = 2
+ mshrs = 2
+ tgts_per_mshr = 8
+ size = '32kB'
+ assoc = 2
+ is_read_only = True
+ # Writeback clean lines as well
+ writeback_clean = True
+
+# Data Cache
+class L1D(O3_ARM_v7a_DCache):
+ tag_latency = 2
+ data_latency = 2
+ response_latency = 2
+ mshrs = 6
+ tgts_per_mshr = 8
+ size = '32kB'
+ assoc = 2
+ write_buffers = 16
+ # Consider the L2 a victim cache also for clean lines
+ writeback_clean = True
+
+# TLB Cache
+# Use a cache as a L2 TLB
+class WalkCache(O3_ARM_v7aWalkCache):
+ 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(O3_ARM_v7aL2):
+ 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()
from common import SysPaths
from common import CpuConfig
+from common import ex5_big
+from common import ex5_LITTLE
import devices
from devices import AtomicCluster, KvmCluster
super(LittleCluster, self).__init__(system, num_cpus, cpu_clock,
cpu_voltage, *cpu_config)
+class Ex5BigCluster(devices.CpuCluster):
+ def __init__(self, system, num_cpus, cpu_clock,
+ cpu_voltage="1.0V"):
+ cpu_config = [ CpuConfig.get("ex5_big"), ex5_big.L1I, ex5_big.L1D,
+ ex5_big.WalkCache, ex5_big.L2 ]
+ super(Ex5BigCluster, self).__init__(system, num_cpus, cpu_clock,
+ cpu_voltage, *cpu_config)
+
+class Ex5LittleCluster(devices.CpuCluster):
+ def __init__(self, system, num_cpus, cpu_clock,
+ cpu_voltage="1.0V"):
+ cpu_config = [ CpuConfig.get("ex5_LITTLE"), ex5_LITTLE.L1I,
+ ex5_LITTLE.L1D, ex5_LITTLE.WalkCache, ex5_LITTLE.L2 ]
+ super(Ex5LittleCluster, self).__init__(system, num_cpus, cpu_clock,
+ cpu_voltage, *cpu_config)
def createSystem(caches, kernel, bootscript, disks=[]):
sys = devices.SimpleSystem(caches, default_mem_size,
cpu_types = {
"atomic" : (AtomicCluster, AtomicCluster),
"timing" : (BigCluster, LittleCluster),
+ "exynos" : (Ex5BigCluster, Ex5LittleCluster),
}
# Only add the KVM CPU if it has been compiled into gem5
projects / gem5.git / commitdiff