FuncUnit.py revision 13169
1# Copyright (c) 2010,2018 ARM Limited 2# All rights reserved. 3# 4# The license below extends only to copyright in the software and shall 5# not be construed as granting a license to any other intellectual 6# property including but not limited to intellectual property relating 7# to a hardware implementation of the functionality of the software 8# licensed hereunder. You may use the software subject to the license 9# terms below provided that you ensure that this notice is replicated 10# unmodified and in its entirety in all distributions of the software, 11# modified or unmodified, in source code or in binary form. 12# 13# Copyright (c) 2006-2007 The Regents of The University of Michigan 14# All rights reserved. 15# 16# Redistribution and use in source and binary forms, with or without 17# modification, are permitted provided that the following conditions are 18# met: redistributions of source code must retain the above copyright 19# notice, this list of conditions and the following disclaimer; 20# redistributions in binary form must reproduce the above copyright 21# notice, this list of conditions and the following disclaimer in the 22# documentation and/or other materials provided with the distribution; 23# neither the name of the copyright holders nor the names of its 24# contributors may be used to endorse or promote products derived from 25# this software without specific prior written permission. 26# 27# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 38# 39# Authors: Kevin Lim 40 41from m5.SimObject import SimObject 42from m5.params import * 43 44class OpClass(Enum): 45 vals = ['No_OpClass', 'IntAlu', 'IntMult', 'IntDiv', 'FloatAdd', 46 'FloatCmp', 'FloatCvt', 'FloatMult', 'FloatMultAcc', 'FloatDiv', 47 'FloatMisc', 'FloatSqrt', 48 'SimdAdd', 'SimdAddAcc', 'SimdAlu', 'SimdCmp', 'SimdCvt', 49 'SimdMisc', 'SimdMult', 'SimdMultAcc', 'SimdShift', 'SimdShiftAcc', 50 'SimdSqrt', 'SimdFloatAdd', 'SimdFloatAlu', 'SimdFloatCmp', 51 'SimdFloatCvt', 'SimdFloatDiv', 'SimdFloatMisc', 'SimdFloatMult', 52 'SimdFloatMultAcc', 'SimdFloatSqrt', 53 'SimdAes', 'SimdAesMix', 'SimdSha1Hash', 'SimdSha1Hash2', 54 'SimdSha256Hash', 'SimdSha256Hash2', 'SimdShaSigma2', 55 'SimdShaSigma3', 'MemRead', 'MemWrite', 56 'FloatMemRead', 'FloatMemWrite', 57 'IprAccess', 'InstPrefetch'] 58 59class OpDesc(SimObject): 60 type = 'OpDesc' 61 cxx_header = "cpu/func_unit.hh" 62 opClass = Param.OpClass("type of operation") 63 opLat = Param.Cycles(1, "cycles until result is available") 64 pipelined = Param.Bool(True, "set to true when the functional unit for" 65 "this op is fully pipelined. False means not pipelined at all.") 66 67class FUDesc(SimObject): 68 type = 'FUDesc' 69 cxx_header = "cpu/func_unit.hh" 70 count = Param.Int("number of these FU's available") 71 opList = VectorParam.OpDesc("operation classes for this FU type") 72