xref: /gem5/src/cpu/o3/FuncUnitConfig.py

# Copyright (c) 2006-2007 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: Kevin Lim

from m5.SimObject import SimObject
from m5.params import *
from FuncUnit import *

class IntALU(FUDesc):
    opList = [ OpDesc(opClass='IntAlu') ]
    count = 6

class IntMultDiv(FUDesc):
    opList = [ OpDesc(opClass='IntMult', opLat=3),
               OpDesc(opClass='IntDiv', opLat=20, issueLat=19) ]
    count=2

class FP_ALU(FUDesc):
    opList = [ OpDesc(opClass='FloatAdd', opLat=2),
               OpDesc(opClass='FloatCmp', opLat=2),
               OpDesc(opClass='FloatCvt', opLat=2) ]
    count = 4

class FP_MultDiv(FUDesc):
    opList = [ OpDesc(opClass='FloatMult', opLat=4),
               OpDesc(opClass='FloatDiv', opLat=12, issueLat=12),
               OpDesc(opClass='FloatSqrt', opLat=24, issueLat=24) ]
    count = 2

class ReadPort(FUDesc):
    opList = [ OpDesc(opClass='MemRead') ]
    count = 0

class WritePort(FUDesc):
    opList = [ OpDesc(opClass='MemWrite') ]
    count = 0

class RdWrPort(FUDesc):
    opList = [ OpDesc(opClass='MemRead'), OpDesc(opClass='MemWrite') ]
    count = 4

class IprPort(FUDesc):
    opList = [ OpDesc(opClass='IprAccess', opLat = 3, issueLat = 3) ]
    count = 1