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# Copyright (c) 2005-2007 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: Nathan Binkert
from m5.SimObject import SimObject
from m5.params import *
from m5.proxy import *
from m5 import build_env
from Bus import Bus
import sys
if build_env['FULL_SYSTEM']:
if build_env['TARGET_ISA'] == 'alpha':
from AlphaTLB import AlphaDTB, AlphaITB
if build_env['TARGET_ISA'] == 'sparc':
from SparcTLB import SparcDTB, SparcITB
class BaseCPU(SimObject):
type = 'BaseCPU'
abstract = True
system = Param.System(Parent.any, "system object")
cpu_id = Param.Int("CPU identifier")
if build_env['FULL_SYSTEM']:
do_quiesce = Param.Bool(True, "enable quiesce instructions")
do_checkpoint_insts = Param.Bool(True,
"enable checkpoint pseudo instructions")
do_statistics_insts = Param.Bool(True,
"enable statistics pseudo instructions")
if build_env['TARGET_ISA'] == 'sparc':
dtb = Param.SparcDTB(SparcDTB(), "Data TLB")
itb = Param.SparcITB(SparcITB(), "Instruction TLB")
elif build_env['TARGET_ISA'] == 'alpha':
dtb = Param.AlphaDTB(AlphaDTB(), "Data TLB")
itb = Param.AlphaITB(AlphaITB(), "Instruction TLB")
else:
print "Unknown architecture, can't pick TLBs"
sys.exit(1)
else:
workload = VectorParam.Process("processes to run")
max_insts_all_threads = Param.Counter(0,
"terminate when all threads have reached this inst count")
max_insts_any_thread = Param.Counter(0,
"terminate when any thread reaches this inst count")
max_loads_all_threads = Param.Counter(0,
"terminate when all threads have reached this load count")
max_loads_any_thread = Param.Counter(0,
"terminate when any thread reaches this load count")
progress_interval = Param.Tick(0,
"interval to print out the progress message")
defer_registration = Param.Bool(False,
"defer registration with system (for sampling)")
clock = Param.Clock('1t', "clock speed")
phase = Param.Latency('0ns', "clock phase")
_mem_ports = []
def connectMemPorts(self, bus):
for p in self._mem_ports:
exec('self.%s = bus.port' % p)
def addPrivateSplitL1Caches(self, ic, dc):
assert(len(self._mem_ports) == 2)
self.icache = ic
self.dcache = dc
self.icache_port = ic.cpu_side
self.dcache_port = dc.cpu_side
self._mem_ports = ['icache.mem_side', 'dcache.mem_side']
def addTwoLevelCacheHierarchy(self, ic, dc, l2c):
self.addPrivateSplitL1Caches(ic, dc)
self.toL2Bus = Bus()
self.connectMemPorts(self.toL2Bus)
self.l2cache = l2c
self.l2cache.cpu_side = self.toL2Bus.port
self._mem_ports = ['l2cache.mem_side']
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