src/cpu/FuncUnit.py

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  39 # Authors: Kevin Lim
  40
  41 from m5.SimObject import SimObject
  42 from m5.params import *
  43
  44 class 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             'SimdDiv', 'SimdSqrt', 'SimdFloatAdd', 'SimdFloatAlu',
  51             'SimdFloatCmp', 'SimdFloatCvt', 'SimdFloatDiv', 'SimdFloatMisc',
  52             'SimdFloatMult', 'SimdFloatMultAcc', 'SimdFloatSqrt',
  53             'SimdReduceAdd', 'SimdReduceAlu', 'SimdReduceCmp',
  54             'SimdFloatReduceAdd', 'SimdFloatReduceCmp',
  55             'SimdAes', 'SimdAesMix', 'SimdSha1Hash', 'SimdSha1Hash2',
  56             'SimdSha256Hash', 'SimdSha256Hash2', 'SimdShaSigma2',
  57             'SimdShaSigma3',
  58             'SimdPredAlu',
  59             'MemRead', 'MemWrite', 'FloatMemRead', 'FloatMemWrite',
  60             'IprAccess', 'InstPrefetch']
  61
  62 class OpDesc(SimObject):
  63     type = 'OpDesc'
  64     cxx_header = "cpu/func_unit.hh"
  65     opClass = Param.OpClass("type of operation")
  66     opLat = Param.Cycles(1, "cycles until result is available")
  67     pipelined = Param.Bool(True, "set to true when the functional unit for"
  68         "this op is fully pipelined. False means not pipelined at all.")
  69
  70 class FUDesc(SimObject):
  71     type = 'FUDesc'
  72     cxx_header = "cpu/func_unit.hh"
  73     count = Param.Int("number of these FU's available")
  74     opList = VectorParam.OpDesc("operation classes for this FU type")