xref: /XiangShan/src/main/scala/xiangshan/backend/datapath/DataConfig.scala (revision 368cbcec1ec1388584a64955790e1afd26ccfb24) 
1package xiangshan.backend.datapath
2
3import chisel3.util.log2Up
4
5object DataConfig {
6  sealed abstract class DataConfig (
7    val name: String,
8    val dataWidth: Int,
9  ) {
10    override def toString: String = name
11  }
12
13  case class IntData() extends DataConfig("int", 64)
14  case class FpData() extends DataConfig("fp", 64)
15  case class VecData() extends DataConfig("vec", 128)
16  case class ImmData(len: Int) extends DataConfig("int", len)
17  case class VAddrData() extends DataConfig("vaddr", 39) // Todo: associate it with the width of vaddr
18  case class MaskSrcData() extends DataConfig("masksrc", VecData().dataWidth) // 128
19  // case class MaskDstData() extends DataConfig("maskdst", VecData().dataWidth / 8) // 16
20  case class VConfigData() extends DataConfig("vconfig", log2Up(VecData().dataWidth) + 1 ) // 8
21  case class FakeIntData() extends DataConfig("fakeint", 64)
22  case class NoData() extends DataConfig("nodata", 0)
23
24  def RegSrcDataSet   : Set[DataConfig] = Set(IntData(), FpData(), VecData(), MaskSrcData(), VConfigData())
25  def IntRegSrcDataSet: Set[DataConfig] = Set(IntData())
26  def FpRegSrcDataSet : Set[DataConfig] = Set(FpData())
27  def VecRegSrcDataSet: Set[DataConfig] = Set(VecData())
28  def VfRegSrcDataSet : Set[DataConfig] = Set(VecData())
29  def V0RegSrcDataSet : Set[DataConfig] = Set(MaskSrcData())
30  def VlRegSrcDataSet : Set[DataConfig] = Set(VConfigData())
31
32
33  def RegDataMaxWidth : Int = RegSrcDataSet.map(_.dataWidth).max
34}
35