scala/xiangshan/Parameters.scala

/***************************************************************************************
* Copyright (c) 2020-2021 Institute of Computing Technology, Chinese Academy of Sciences
* Copyright (c) 2020-2021 Peng Cheng Laboratory
*
* XiangShan is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
*          http://license.coscl.org.cn/MulanPSL2
*
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
*
* See the Mulan PSL v2 for more details.
***************************************************************************************/

package xiangshan

import org.chipsalliance.cde.config.{Field, Parameters}
import chisel3._
import chisel3.util._
import huancun._
import system.SoCParamsKey
import xiangshan.backend.datapath.RdConfig._
import xiangshan.backend.datapath.WbConfig._
import xiangshan.backend.dispatch.DispatchParameters
import xiangshan.backend.exu.ExeUnitParams
import xiangshan.backend.fu.FuConfig._
import xiangshan.backend.issue.{IntScheduler, IssueBlockParams, MemScheduler, SchdBlockParams, SchedulerType, VfScheduler, FpScheduler}
import xiangshan.backend.regfile._
import xiangshan.backend.BackendParams
import xiangshan.cache.DCacheParameters
import xiangshan.cache.prefetch._
import xiangshan.frontend.{BasePredictor, BranchPredictionResp, FTB, FakePredictor, RAS, Tage, ITTage, Tage_SC, FauFTB}
import xiangshan.frontend.icache.ICacheParameters
import xiangshan.cache.mmu.{L2TLBParameters, TLBParameters}
import xiangshan.frontend._
import xiangshan.frontend.icache.ICacheParameters
import freechips.rocketchip.diplomacy.AddressSet
import freechips.rocketchip.tile.MaxHartIdBits
import system.SoCParamsKey
import huancun._
import huancun.debug._
import xiangshan.cache.wpu.WPUParameters
import coupledL2._
import coupledL2.tl2chi._
import xiangshan.backend.datapath.WakeUpConfig
import xiangshan.mem.prefetch.{PrefetcherParams, SMSParams}

import scala.math.{max, min}

case object XSTileKey extends Field[Seq[XSCoreParameters]]

case object XSCoreParamsKey extends Field[XSCoreParameters]

case class XSCoreParameters
(
  HasPrefetch: Boolean = false,
  HartId: Int = 0,
  XLEN: Int = 64,
  VLEN: Int = 128,
  ELEN: Int = 64,
  HSXLEN: Int = 64,
  HasMExtension: Boolean = true,
  HasCExtension: Boolean = true,
  HasHExtension: Boolean = true,
  HasDiv: Boolean = true,
  HasICache: Boolean = true,
  HasDCache: Boolean = true,
  AddrBits: Int = 64,
  VAddrBits: Int = 48,
  GPAddrBits: Int = 50,
  HasFPU: Boolean = true,
  HasVPU: Boolean = true,
  HasCustomCSRCacheOp: Boolean = true,
  FetchWidth: Int = 8,
  AsidLength: Int = 16,
  VmidLength: Int = 14,
  EnableBPU: Boolean = true,
  EnableBPD: Boolean = true,
  EnableRAS: Boolean = true,
  EnableLB: Boolean = false,
  EnableLoop: Boolean = true,
  EnableSC: Boolean = true,
  EnbaleTlbDebug: Boolean = false,
  EnableClockGate: Boolean = true,
  EnableJal: Boolean = false,
  EnableFauFTB: Boolean = true,
  EnableSv48: Boolean = true,
  UbtbGHRLength: Int = 4,
  // HistoryLength: Int = 512,
  EnableGHistDiff: Boolean = true,
  EnableCommitGHistDiff: Boolean = true,
  UbtbSize: Int = 256,
  FtbSize: Int = 2048,
  RasSize: Int = 16,
  RasSpecSize: Int = 32,
  RasCtrSize: Int = 3,
  CacheLineSize: Int = 512,
  FtbWays: Int = 4,
  TageTableInfos: Seq[Tuple3[Int,Int,Int]] =
  //       Sets  Hist   Tag
    Seq(( 4096,    8,    8),
        ( 4096,   13,    8),
        ( 4096,   32,    8),
        ( 4096,  119,    8)),
  ITTageTableInfos: Seq[Tuple3[Int,Int,Int]] =
  //      Sets  Hist   Tag
    Seq(( 256,    4,    9),
        ( 256,    8,    9),
        ( 512,   13,    9),
        ( 512,   16,    9),
        ( 512,   32,    9)),
  SCNRows: Int = 512,
  SCNTables: Int = 4,
  SCCtrBits: Int = 6,
  SCHistLens: Seq[Int] = Seq(0, 4, 10, 16),
  numBr: Int = 2,
  branchPredictor: (BranchPredictionResp, Parameters) => Tuple2[Seq[BasePredictor], BranchPredictionResp] =
  (resp_in: BranchPredictionResp, p: Parameters) => {
    val ftb = Module(new FTB()(p))
    val uftb = Module(new FauFTB()(p))
    val tage = Module(new Tage_SC()(p))
    val ras = Module(new RAS()(p))
    val ittage = Module(new ITTage()(p))
    val preds = Seq(uftb, tage, ftb, ittage, ras)
    preds.map(_.io := DontCare)

    ftb.io.fauftb_entry_in  := uftb.io.fauftb_entry_out
    ftb.io.fauftb_entry_hit_in := uftb.io.fauftb_entry_hit_out

    uftb.io.in.bits.resp_in(0) := resp_in
    tage.io.in.bits.resp_in(0) := uftb.io.out
    ftb.io.in.bits.resp_in(0) := tage.io.out
    ittage.io.in.bits.resp_in(0) := ftb.io.out
    ras.io.in.bits.resp_in(0) := ittage.io.out

    (preds, ras.io.out)
  },
  ICacheForceMetaECCError: Boolean = false,
  ICacheForceDataECCError: Boolean = false,
  IBufSize: Int = 48,
  IBufNBank: Int = 6, // IBuffer bank amount, should divide IBufSize
  DecodeWidth: Int = 6,
  RenameWidth: Int = 6,
  CommitWidth: Int = 8,
  RobCommitWidth: Int = 8,
  RabCommitWidth: Int = 6,
  MaxUopSize: Int = 65,
  EnableRenameSnapshot: Boolean = true,
  RenameSnapshotNum: Int = 4,
  FtqSize: Int = 64,
  EnableLoadFastWakeUp: Boolean = true, // NOTE: not supported now, make it false
  IntLogicRegs: Int = 32,
  FpLogicRegs: Int = 32 + 1 + 1, // 1: I2F, 1: stride
  VecLogicRegs: Int = 32 + 15, // 15: tmp
  V0LogicRegs: Int = 1, // V0
  VlLogicRegs: Int = 1, // Vl
  V0_IDX: Int = 0,
  Vl_IDX: Int = 0,
  NRPhyRegs: Int = 192,
  VirtualLoadQueueSize: Int = 72,
  LoadQueueRARSize: Int = 72,
  LoadQueueRAWSize: Int = 64, // NOTE: make sure that LoadQueueRAWSize is power of 2.
  RollbackGroupSize: Int = 8,
  LoadQueueReplaySize: Int = 72,
  LoadUncacheBufferSize: Int = 20,
  LoadQueueNWriteBanks: Int = 8, // NOTE: make sure that LoadQueueRARSize/LoadQueueRAWSize is divided by LoadQueueNWriteBanks
  StoreQueueSize: Int = 64,
  StoreQueueNWriteBanks: Int = 8, // NOTE: make sure that StoreQueueSize is divided by StoreQueueNWriteBanks
  StoreQueueForwardWithMask: Boolean = true,
  VlsQueueSize: Int = 8,
  RobSize: Int = 160,
  RabSize: Int = 256,
  VTypeBufferSize: Int = 64, // used to reorder vtype
  IssueQueueSize: Int = 24,
  IssueQueueCompEntrySize: Int = 16,
  dpParams: DispatchParameters = DispatchParameters(
    IntDqSize = 16,
    FpDqSize = 16,
    LsDqSize = 18,
    IntDqDeqWidth = 8,
    FpDqDeqWidth = 6,
    VecDqDeqWidth = 6,
    LsDqDeqWidth = 6,
  ),
  intPreg: PregParams = IntPregParams(
    numEntries = 224,
    numRead = None,
    numWrite = None,
  ),
  fpPreg: PregParams = FpPregParams(
    numEntries = 192,
    numRead = None,
    numWrite = None,
  ),
  vfPreg: VfPregParams = VfPregParams(
    numEntries = 128,
    numRead = None,
    numWrite = None,
  ),
  v0Preg: V0PregParams = V0PregParams(
    numEntries = 22,
    numRead = None,
    numWrite = None,
  ),
  vlPreg: VlPregParams = VlPregParams(
    numEntries = 32,
    numRead = None,
    numWrite = None,
  ),
  IntRegCacheSize: Int = 16,
  MemRegCacheSize: Int = 12,
  prefetcher: Option[PrefetcherParams] = Some(SMSParams()),
  IfuRedirectNum: Int = 1,
  LoadPipelineWidth: Int = 3,
  StorePipelineWidth: Int = 2,
  VecLoadPipelineWidth: Int = 2,
  VecStorePipelineWidth: Int = 2,
  VecMemSrcInWidth: Int = 2,
  VecMemInstWbWidth: Int = 1,
  VecMemDispatchWidth: Int = 1,
  VecMemDispatchMaxNumber: Int = 16,
  VecMemUnitStrideMaxFlowNum: Int = 2,
  VecMemLSQEnqIteratorNumberSeq: Seq[Int] = Seq(16, 2, 2, 2, 2, 2),
  StoreBufferSize: Int = 16,
  StoreBufferThreshold: Int = 7,
  EnsbufferWidth: Int = 2,
  LoadDependencyWidth: Int = 2,
  // ============ VLSU ============
  VlMergeBufferSize: Int = 16,
  VsMergeBufferSize: Int = 16,
  UopWritebackWidth: Int = 2,
  VLUopWritebackWidth: Int = 2,
  VSUopWritebackWidth: Int = 1,
  VSegmentBufferSize: Int = 8,
  // ==============================
  UncacheBufferSize: Int = 4,
  EnableLoadToLoadForward: Boolean = false,
  EnableFastForward: Boolean = true,
  EnableLdVioCheckAfterReset: Boolean = true,
  EnableSoftPrefetchAfterReset: Boolean = true,
  EnableCacheErrorAfterReset: Boolean = true,
  EnableAccurateLoadError: Boolean = false,
  EnableUncacheWriteOutstanding: Boolean = false,
  EnableStorePrefetchAtIssue: Boolean = false,
  EnableStorePrefetchAtCommit: Boolean = false,
  EnableAtCommitMissTrigger: Boolean = true,
  EnableStorePrefetchSMS: Boolean = false,
  EnableStorePrefetchSPB: Boolean = false,
  MMUAsidLen: Int = 16, // max is 16, 0 is not supported now
  MMUVmidLen: Int = 14,
  ReSelectLen: Int = 7, // load replay queue replay select counter len
  iwpuParameters: WPUParameters = WPUParameters(
    enWPU = false,
    algoName = "mmru",
    isICache = true,
  ),
  dwpuParameters: WPUParameters = WPUParameters(
    enWPU = false,
    algoName = "mmru",
    enCfPred = false,
    isICache = false,
  ),
  itlbParameters: TLBParameters = TLBParameters(
    name = "itlb",
    fetchi = true,
    useDmode = false,
    NWays = 48,
  ),
  itlbPortNum: Int = ICacheParameters().PortNumber + 1,
  ipmpPortNum: Int = 2 * ICacheParameters().PortNumber + 1,
  ldtlbParameters: TLBParameters = TLBParameters(
    name = "ldtlb",
    NWays = 48,
    outReplace = false,
    partialStaticPMP = true,
    outsideRecvFlush = true,
    saveLevel = false,
    lgMaxSize = 4
  ),
  sttlbParameters: TLBParameters = TLBParameters(
    name = "sttlb",
    NWays = 48,
    outReplace = false,
    partialStaticPMP = true,
    outsideRecvFlush = true,
    saveLevel = false,
    lgMaxSize = 4
  ),
  hytlbParameters: TLBParameters = TLBParameters(
    name = "hytlb",
    NWays = 48,
    outReplace = false,
    partialStaticPMP = true,
    outsideRecvFlush = true,
    saveLevel = false,
    lgMaxSize = 4
  ),
  pftlbParameters: TLBParameters = TLBParameters(
    name = "pftlb",
    NWays = 48,
    outReplace = false,
    partialStaticPMP = true,
    outsideRecvFlush = true,
    saveLevel = false,
    lgMaxSize = 4
  ),
  l2ToL1tlbParameters: TLBParameters = TLBParameters(
    name = "l2tlb",
    NWays = 48,
    outReplace = false,
    partialStaticPMP = true,
    outsideRecvFlush = true,
    saveLevel = false
  ),
  refillBothTlb: Boolean = false,
  btlbParameters: TLBParameters = TLBParameters(
    name = "btlb",
    NWays = 48,
  ),
  l2tlbParameters: L2TLBParameters = L2TLBParameters(),
  NumPerfCounters: Int = 16,
  icacheParameters: ICacheParameters = ICacheParameters(
    tagECC = Some("parity"),
    dataECC = Some("parity"),
    replacer = Some("setplru"),
  ),
  dcacheParametersOpt: Option[DCacheParameters] = Some(DCacheParameters(
    tagECC = Some("secded"),
    dataECC = Some("secded"),
    replacer = Some("setplru"),
    nMissEntries = 16,
    nProbeEntries = 8,
    nReleaseEntries = 18,
    nMaxPrefetchEntry = 6,
  )),
  L2CacheParamsOpt: Option[L2Param] = Some(L2Param(
    name = "l2",
    ways = 8,
    sets = 1024, // default 512KB L2
    prefetch = Seq(coupledL2.prefetch.PrefetchReceiverParams(), coupledL2.prefetch.BOPParameters(),
      coupledL2.prefetch.TPParameters()),
  )),
  L2NBanks: Int = 1,
  usePTWRepeater: Boolean = false,
  softTLB: Boolean = false, // dpi-c l1tlb debug only
  softPTW: Boolean = false, // dpi-c l2tlb debug only
  softPTWDelay: Int = 1
){
  def vlWidth = log2Up(VLEN) + 1

  /**
   * the minimum element length of vector elements
   */
  val minVecElen: Int = 8

  /**
   * the maximum number of elements in vector register
   */
  val maxElemPerVreg: Int = VLEN / minVecElen

  val allHistLens = SCHistLens ++ ITTageTableInfos.map(_._2) ++ TageTableInfos.map(_._2) :+ UbtbGHRLength
  val HistoryLength = allHistLens.max + numBr * FtqSize + 9 // 256 for the predictor configs now

  val RegCacheSize = IntRegCacheSize + MemRegCacheSize
  val RegCacheIdxWidth = log2Up(RegCacheSize)

  val intSchdParams = {
    implicit val schdType: SchedulerType = IntScheduler()
    SchdBlockParams(Seq(
      IssueBlockParams(Seq(
        ExeUnitParams("ALU0", Seq(AluCfg, MulCfg, BkuCfg), Seq(IntWB(port = 0, 0)), Seq(Seq(IntRD(0, 0)), Seq(IntRD(1, 0))), true, 2),
        ExeUnitParams("BJU0", Seq(BrhCfg, JmpCfg), Seq(IntWB(port = 0, 1)), Seq(Seq(IntRD(6, 1)), Seq(IntRD(7, 1))), true, 2),
      ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize),
      IssueBlockParams(Seq(
        ExeUnitParams("ALU1", Seq(AluCfg, MulCfg, BkuCfg), Seq(IntWB(port = 1, 0)), Seq(Seq(IntRD(2, 0)), Seq(IntRD(3, 0))), true, 2),
        ExeUnitParams("BJU1", Seq(BrhCfg, JmpCfg), Seq(IntWB(port = 1, 1)), Seq(Seq(IntRD(4, 1)), Seq(IntRD(5, 1))), true, 2),
      ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize),
      IssueBlockParams(Seq(
        ExeUnitParams("ALU2", Seq(AluCfg), Seq(IntWB(port = 2, 0)), Seq(Seq(IntRD(4, 0)), Seq(IntRD(5, 0))), true, 2),
        ExeUnitParams("BJU2", Seq(BrhCfg, JmpCfg, I2fCfg, VSetRiWiCfg, VSetRiWvfCfg, I2vCfg), Seq(IntWB(port = 4, 0), VfWB(2, 0), V0WB(port = 2, 0), VlWB(port = 0, 0), FpWB(port = 4, 0)), Seq(Seq(IntRD(2, 1)), Seq(IntRD(3, 1)))),
      ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize),
      IssueBlockParams(Seq(
        ExeUnitParams("ALU3", Seq(AluCfg), Seq(IntWB(port = 3, 0)), Seq(Seq(IntRD(6, 0)), Seq(IntRD(7, 0))), true, 2),
        ExeUnitParams("BJU3", Seq(CsrCfg, FenceCfg, DivCfg), Seq(IntWB(port = 4, 1)), Seq(Seq(IntRD(0, 1)), Seq(IntRD(1, 1)))),
      ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize),
    ),
      numPregs = intPreg.numEntries,
      numDeqOutside = 0,
      schdType = schdType,
      rfDataWidth = intPreg.dataCfg.dataWidth,
      numUopIn = dpParams.IntDqDeqWidth,
    )
  }

  val fpSchdParams = {
    implicit val schdType: SchedulerType = FpScheduler()
    SchdBlockParams(Seq(
      IssueBlockParams(Seq(
        ExeUnitParams("FEX0", Seq(FaluCfg, FcvtCfg, F2vCfg, FmacCfg), Seq(FpWB(port = 0, 0), IntWB(port = 0, 2), VfWB(port = 3, 0), V0WB(port = 3, 0)), Seq(Seq(FpRD(0, 0)), Seq(FpRD(1, 0)), Seq(FpRD(2, 0)))),
      ), numEntries = 18, numEnq = 2, numComp = 16),
      IssueBlockParams(Seq(
        ExeUnitParams("FEX1", Seq(FaluCfg, FmacCfg), Seq(FpWB(port = 1, 0), IntWB(port = 1, 2)), Seq(Seq(FpRD(3, 0)), Seq(FpRD(4, 0)), Seq(FpRD(5, 0)))),
      ), numEntries = 18, numEnq = 2, numComp = 16),
      IssueBlockParams(Seq(
        ExeUnitParams("FEX2", Seq(FaluCfg, FmacCfg), Seq(FpWB(port = 2, 0), IntWB(port = 2, 2)), Seq(Seq(FpRD(6, 0)), Seq(FpRD(7, 0)), Seq(FpRD(8, 0)))),
      ), numEntries = 18, numEnq = 2, numComp = 16),
      IssueBlockParams(Seq(
        ExeUnitParams("FEX3", Seq(FaluCfg, FmacCfg), Seq(FpWB(port = 3, 0), IntWB(port = 3, 2)), Seq(Seq(FpRD(9, 0)), Seq(FpRD(10, 0)), Seq(FpRD(11, 0)))),
      ), numEntries = 18, numEnq = 2, numComp = 16),
      IssueBlockParams(Seq(
        ExeUnitParams("FEX4", Seq(FdivCfg), Seq(FpWB(port = 4, 1)), Seq(Seq(FpRD(2, 1)), Seq(FpRD(5, 1)))),
        ExeUnitParams("FEX5", Seq(FdivCfg), Seq(FpWB(port = 3, 1)), Seq(Seq(FpRD(8, 1)), Seq(FpRD(11, 1)))),
      ), numEntries = 18, numEnq = 2, numComp = 16),
    ),
      numPregs = fpPreg.numEntries,
      numDeqOutside = 0,
      schdType = schdType,
      rfDataWidth = fpPreg.dataCfg.dataWidth,
      numUopIn = dpParams.VecDqDeqWidth,
    )
  }

  val vfSchdParams = {
    implicit val schdType: SchedulerType = VfScheduler()
    SchdBlockParams(Seq(
      IssueBlockParams(Seq(
        ExeUnitParams("VFEX0", Seq(VfmaCfg, VialuCfg, VimacCfg, VppuCfg), Seq(VfWB(port = 0, 0), V0WB(port = 0, 0)), Seq(Seq(VfRD(0, 0)), Seq(VfRD(1, 0)), Seq(VfRD(2, 0)), Seq(V0RD(0, 0)), Seq(VlRD(0, 0)))),
        ExeUnitParams("VFEX1", Seq(VfaluCfg, VfcvtCfg, VipuCfg, VSetRvfWvfCfg), Seq(VfWB(port = 0, 1), V0WB(port = 0, 1), VlWB(port = 1, 0), IntWB(port = 1, 1), FpWB(port = 0, 1)), Seq(Seq(VfRD(0, 1)), Seq(VfRD(1, 1)), Seq(VfRD(2, 1)), Seq(V0RD(0, 1)), Seq(VlRD(0, 1)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("VFEX2", Seq(VfmaCfg, VialuCfg), Seq(VfWB(port = 1, 0), V0WB(port = 1, 0)), Seq(Seq(VfRD(3, 0)), Seq(VfRD(4, 0)), Seq(VfRD(5, 0)), Seq(V0RD(1, 0)), Seq(VlRD(1, 0)))),
        ExeUnitParams("VFEX3", Seq(VfaluCfg, VfcvtCfg), Seq(VfWB(port = 2, 1), V0WB(port = 2, 1), FpWB(port = 1, 1)), Seq(Seq(VfRD(3, 1)), Seq(VfRD(4, 1)), Seq(VfRD(5, 1)), Seq(V0RD(1, 1)), Seq(VlRD(1, 1)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("VFEX4", Seq(VfdivCfg, VidivCfg), Seq(VfWB(port = 3, 1), V0WB(port = 3, 1)), Seq(Seq(VfRD(3, 2)), Seq(VfRD(4, 2)), Seq(VfRD(5, 2)), Seq(V0RD(1, 2)), Seq(VlRD(1, 2)))),
      ), numEntries = 10, numEnq = 2, numComp = 8),
    ),
      numPregs = vfPreg.numEntries,
      numDeqOutside = 0,
      schdType = schdType,
      rfDataWidth = vfPreg.dataCfg.dataWidth,
      numUopIn = dpParams.VecDqDeqWidth,
    )
  }

  val memSchdParams = {
    implicit val schdType: SchedulerType = MemScheduler()
    val rfDataWidth = 64

    SchdBlockParams(Seq(
      IssueBlockParams(Seq(
        ExeUnitParams("STA0", Seq(StaCfg, MouCfg), Seq(FakeIntWB()), Seq(Seq(IntRD(7, 2)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("STA1", Seq(StaCfg, MouCfg), Seq(FakeIntWB()), Seq(Seq(IntRD(6, 2)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("LDU0", Seq(LduCfg), Seq(IntWB(5, 0), FpWB(5, 0)), Seq(Seq(IntRD(8, 0))), true, 2),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("LDU1", Seq(LduCfg), Seq(IntWB(6, 0), FpWB(6, 0)), Seq(Seq(IntRD(9, 0))), true, 2),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("LDU2", Seq(LduCfg), Seq(IntWB(7, 0), FpWB(7, 0)), Seq(Seq(IntRD(10, 0))), true, 2),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("VLSU0", Seq(VlduCfg, VstuCfg, VseglduSeg, VsegstuCfg), Seq(VfWB(4, 0), V0WB(4, 0)), Seq(Seq(VfRD(6, 0)), Seq(VfRD(7, 0)), Seq(VfRD(8, 0)), Seq(V0RD(2, 0)), Seq(VlRD(2, 0)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("VLSU1", Seq(VlduCfg, VstuCfg), Seq(VfWB(5, 0), V0WB(5, 0)), Seq(Seq(VfRD(9, 0)), Seq(VfRD(10, 0)), Seq(VfRD(11, 0)), Seq(V0RD(3, 0)), Seq(VlRD(3, 0)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("STD0", Seq(StdCfg, MoudCfg), Seq(), Seq(Seq(IntRD(5, 2), FpRD(12, 0)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
      IssueBlockParams(Seq(
        ExeUnitParams("STD1", Seq(StdCfg, MoudCfg), Seq(), Seq(Seq(IntRD(3, 2), FpRD(13, 0)))),
      ), numEntries = 16, numEnq = 2, numComp = 14),
    ),
      numPregs = intPreg.numEntries max vfPreg.numEntries,
      numDeqOutside = 0,
      schdType = schdType,
      rfDataWidth = rfDataWidth,
      numUopIn = dpParams.LsDqDeqWidth,
    )
  }

  def PregIdxWidthMax = intPreg.addrWidth max vfPreg.addrWidth

  def iqWakeUpParams = {
    Seq(
      WakeUpConfig(
        Seq("ALU0", "ALU1", "ALU2", "ALU3", "LDU0", "LDU1", "LDU2") ->
        Seq("ALU0", "BJU0", "ALU1", "BJU1", "ALU2", "BJU2", "ALU3", "BJU3", "LDU0", "LDU1", "LDU2", "STA0", "STA1", "STD0", "STD1")
      ),
      // TODO: add load -> fp slow wakeup
      WakeUpConfig(
        Seq("FEX0", "FEX1", "FEX2", "FEX3") ->
        Seq("FEX0", "FEX1", "FEX2", "FEX3", "FEX4", "FEX5")
      ),
      WakeUpConfig(
        Seq("FEX0", "FEX1", "FEX2", "FEX3") ->
        Seq("STD0", "STD1")
      ),
//      WakeUpConfig(
//        Seq("VFEX0", "VFEX1", "VFEX2", "VFEX3") ->
//        Seq("VFEX0", "VFEX1", "VFEX2", "VFEX3")
//      ),
    ).flatten
  }

  def fakeIntPreg = FakeIntPregParams(intPreg.numEntries, intPreg.numRead, intPreg.numWrite)

  val backendParams: BackendParams = backend.BackendParams(
    Map(
      IntScheduler() -> intSchdParams,
      FpScheduler() -> fpSchdParams,
      VfScheduler() -> vfSchdParams,
      MemScheduler() -> memSchdParams,
    ),
    Seq(
      intPreg,
      fpPreg,
      vfPreg,
      v0Preg,
      vlPreg,
      fakeIntPreg
    ),
    iqWakeUpParams,
  )
}

case object DebugOptionsKey extends Field[DebugOptions]

case class DebugOptions
(
  FPGAPlatform: Boolean = false,
  ResetGen: Boolean = false,
  EnableDifftest: Boolean = false,
  AlwaysBasicDiff: Boolean = true,
  EnableDebug: Boolean = false,
  EnablePerfDebug: Boolean = true,
  UseDRAMSim: Boolean = false,
  EnableConstantin: Boolean = false,
  EnableChiselDB: Boolean = false,
  AlwaysBasicDB: Boolean = true,
  EnableRollingDB: Boolean = false
)

trait HasXSParameter {

  implicit val p: Parameters

  def PAddrBits = p(SoCParamsKey).PAddrBits // PAddrBits is Phyical Memory addr bits
  final val PageOffsetWidth = 12
  def NodeIDWidth = p(SoCParamsKey).NodeIDWidthList(p(CHIIssue)) // NodeID width among NoC

  def coreParams = p(XSCoreParamsKey)
  def env = p(DebugOptionsKey)

  def XLEN = coreParams.XLEN
  def VLEN = coreParams.VLEN
  def ELEN = coreParams.ELEN
  def HSXLEN = coreParams.HSXLEN
  val minFLen = 32
  val fLen = 64
  def hartIdLen = p(MaxHartIdBits)
  val xLen = XLEN

  def HasMExtension = coreParams.HasMExtension
  def HasCExtension = coreParams.HasCExtension
  def HasHExtension = coreParams.HasHExtension
  def EnableSv48 = coreParams.EnableSv48
  def HasDiv = coreParams.HasDiv
  def HasIcache = coreParams.HasICache
  def HasDcache = coreParams.HasDCache
  def AddrBits = coreParams.AddrBits // AddrBits is used in some cases
  def GPAddrBits = coreParams.GPAddrBits
  def VAddrBits = {
    if (HasHExtension) {
      coreParams.GPAddrBits
    } else {
      coreParams.VAddrBits
    }
  } // VAddrBits is Virtual Memory addr bits
  require(PAddrBits == 48 || !EnableSv48) // Paddr bits should be 48 when Sv48 enable

  def VAddrMaxBits = coreParams.VAddrBits max coreParams.GPAddrBits

  def AsidLength = coreParams.AsidLength
  def VmidLength = coreParams.VmidLength
  def ReSelectLen = coreParams.ReSelectLen
  def AddrBytes = AddrBits / 8 // unused
  def DataBits = XLEN
  def DataBytes = DataBits / 8
  def VDataBytes = VLEN / 8
  def HasFPU = coreParams.HasFPU
  def HasVPU = coreParams.HasVPU
  def HasCustomCSRCacheOp = coreParams.HasCustomCSRCacheOp
  def FetchWidth = coreParams.FetchWidth
  def PredictWidth = FetchWidth * (if (HasCExtension) 2 else 1)
  def EnableBPU = coreParams.EnableBPU
  def EnableBPD = coreParams.EnableBPD // enable backing predictor(like Tage) in BPUStage3
  def EnableRAS = coreParams.EnableRAS
  def EnableLB = coreParams.EnableLB
  def EnableLoop = coreParams.EnableLoop
  def EnableSC = coreParams.EnableSC
  def EnbaleTlbDebug = coreParams.EnbaleTlbDebug
  def HistoryLength = coreParams.HistoryLength
  def EnableGHistDiff = coreParams.EnableGHistDiff
  def EnableCommitGHistDiff = coreParams.EnableCommitGHistDiff
  def EnableClockGate = coreParams.EnableClockGate
  def UbtbGHRLength = coreParams.UbtbGHRLength
  def UbtbSize = coreParams.UbtbSize
  def EnableFauFTB = coreParams.EnableFauFTB
  def FtbSize = coreParams.FtbSize
  def FtbWays = coreParams.FtbWays
  def RasSize = coreParams.RasSize
  def RasSpecSize = coreParams.RasSpecSize
  def RasCtrSize = coreParams.RasCtrSize

  def getBPDComponents(resp_in: BranchPredictionResp, p: Parameters) = {
    coreParams.branchPredictor(resp_in, p)
  }
  def numBr = coreParams.numBr
  def TageTableInfos = coreParams.TageTableInfos
  def TageBanks = coreParams.numBr
  def SCNRows = coreParams.SCNRows
  def SCCtrBits = coreParams.SCCtrBits
  def SCHistLens = coreParams.SCHistLens
  def SCNTables = coreParams.SCNTables

  def SCTableInfos = Seq.fill(SCNTables)((SCNRows, SCCtrBits)) zip SCHistLens map {
    case ((n, cb), h) => (n, cb, h)
  }
  def ITTageTableInfos = coreParams.ITTageTableInfos
  type FoldedHistoryInfo = Tuple2[Int, Int]
  def foldedGHistInfos =
    (TageTableInfos.map{ case (nRows, h, t) =>
      if (h > 0)
        Set((h, min(log2Ceil(nRows/numBr), h)), (h, min(h, t)), (h, min(h, t-1)))
      else
        Set[FoldedHistoryInfo]()
    }.reduce(_++_).toSet ++
    SCTableInfos.map{ case (nRows, _, h) =>
      if (h > 0)
        Set((h, min(log2Ceil(nRows/TageBanks), h)))
      else
        Set[FoldedHistoryInfo]()
    }.reduce(_++_).toSet ++
    ITTageTableInfos.map{ case (nRows, h, t) =>
      if (h > 0)
        Set((h, min(log2Ceil(nRows), h)), (h, min(h, t)), (h, min(h, t-1)))
      else
        Set[FoldedHistoryInfo]()
    }.reduce(_++_) ++
      Set[FoldedHistoryInfo]((UbtbGHRLength, log2Ceil(UbtbSize)))
    ).toList


  def CacheLineSize = coreParams.CacheLineSize
  def CacheLineHalfWord = CacheLineSize / 16
  def ExtHistoryLength = HistoryLength + 64
  def ICacheForceMetaECCError = coreParams.ICacheForceMetaECCError
  def ICacheForceDataECCError = coreParams.ICacheForceDataECCError
  def IBufSize = coreParams.IBufSize
  def IBufNBank = coreParams.IBufNBank
  def backendParams: BackendParams = coreParams.backendParams
  def DecodeWidth = coreParams.DecodeWidth
  def RenameWidth = coreParams.RenameWidth
  def CommitWidth = coreParams.CommitWidth
  def RobCommitWidth = coreParams.RobCommitWidth
  def RabCommitWidth = coreParams.RabCommitWidth
  def MaxUopSize = coreParams.MaxUopSize
  def EnableRenameSnapshot = coreParams.EnableRenameSnapshot
  def RenameSnapshotNum = coreParams.RenameSnapshotNum
  def FtqSize = coreParams.FtqSize
  def EnableLoadFastWakeUp = coreParams.EnableLoadFastWakeUp
  def IntLogicRegs = coreParams.IntLogicRegs
  def FpLogicRegs = coreParams.FpLogicRegs
  def VecLogicRegs = coreParams.VecLogicRegs
  def V0LogicRegs = coreParams.V0LogicRegs
  def VlLogicRegs = coreParams.VlLogicRegs
  def MaxLogicRegs = Set(IntLogicRegs, FpLogicRegs, VecLogicRegs, V0LogicRegs, VlLogicRegs).max
  def LogicRegsWidth = log2Ceil(MaxLogicRegs)
  def V0_IDX = coreParams.V0_IDX
  def Vl_IDX = coreParams.Vl_IDX
  def IntPhyRegs = coreParams.intPreg.numEntries
  def FpPhyRegs = coreParams.fpPreg.numEntries
  def VfPhyRegs = coreParams.vfPreg.numEntries
  def V0PhyRegs = coreParams.v0Preg.numEntries
  def VlPhyRegs = coreParams.vlPreg.numEntries
  def MaxPhyPregs = IntPhyRegs max VfPhyRegs
  def PhyRegIdxWidth = log2Up(IntPhyRegs) max log2Up(FpPhyRegs) max log2Up(VfPhyRegs)
  def RobSize = coreParams.RobSize
  def RabSize = coreParams.RabSize
  def VTypeBufferSize = coreParams.VTypeBufferSize
  def IntRegCacheSize = coreParams.IntRegCacheSize
  def MemRegCacheSize = coreParams.MemRegCacheSize
  def RegCacheSize = coreParams.RegCacheSize
  def RegCacheIdxWidth = coreParams.RegCacheIdxWidth
  /**
   * the minimum element length of vector elements
   */
  def minVecElen: Int = coreParams.minVecElen

  /**
   * the maximum number of elements in vector register
   */
  def maxElemPerVreg: Int = coreParams.maxElemPerVreg

  def IntRefCounterWidth = log2Ceil(RobSize)
  def LSQEnqWidth = coreParams.dpParams.LsDqDeqWidth
  def LSQLdEnqWidth = LSQEnqWidth min backendParams.numLoadDp
  def LSQStEnqWidth = LSQEnqWidth min backendParams.numStoreDp
  def VirtualLoadQueueSize = coreParams.VirtualLoadQueueSize
  def LoadQueueRARSize = coreParams.LoadQueueRARSize
  def LoadQueueRAWSize = coreParams.LoadQueueRAWSize
  def RollbackGroupSize = coreParams.RollbackGroupSize
  def LoadQueueReplaySize = coreParams.LoadQueueReplaySize
  def LoadUncacheBufferSize = coreParams.LoadUncacheBufferSize
  def LoadQueueNWriteBanks = coreParams.LoadQueueNWriteBanks
  def StoreQueueSize = coreParams.StoreQueueSize
  def VirtualLoadQueueMaxStoreQueueSize = VirtualLoadQueueSize max StoreQueueSize
  def StoreQueueNWriteBanks = coreParams.StoreQueueNWriteBanks
  def StoreQueueForwardWithMask = coreParams.StoreQueueForwardWithMask
  def VlsQueueSize = coreParams.VlsQueueSize
  def dpParams = coreParams.dpParams

  def MemIQSizeMax = backendParams.memSchdParams.get.issueBlockParams.map(_.numEntries).max
  def IQSizeMax = backendParams.allSchdParams.map(_.issueBlockParams.map(_.numEntries).max).max

  def NumRedirect = backendParams.numRedirect
  def BackendRedirectNum = NumRedirect + 2 //2: ldReplay + Exception
  def FtqRedirectAheadNum = NumRedirect
  def IfuRedirectNum = coreParams.IfuRedirectNum
  def LoadPipelineWidth = coreParams.LoadPipelineWidth
  def StorePipelineWidth = coreParams.StorePipelineWidth
  def VecLoadPipelineWidth = coreParams.VecLoadPipelineWidth
  def VecStorePipelineWidth = coreParams.VecStorePipelineWidth
  def VecMemSrcInWidth = coreParams.VecMemSrcInWidth
  def VecMemInstWbWidth = coreParams.VecMemInstWbWidth
  def VecMemDispatchWidth = coreParams.VecMemDispatchWidth
  def VecMemDispatchMaxNumber = coreParams.VecMemDispatchMaxNumber
  def VecMemUnitStrideMaxFlowNum = coreParams.VecMemUnitStrideMaxFlowNum
  def VecMemLSQEnqIteratorNumberSeq = coreParams.VecMemLSQEnqIteratorNumberSeq
  def StoreBufferSize = coreParams.StoreBufferSize
  def StoreBufferThreshold = coreParams.StoreBufferThreshold
  def EnsbufferWidth = coreParams.EnsbufferWidth
  def LoadDependencyWidth = coreParams.LoadDependencyWidth
  def VlMergeBufferSize = coreParams.VlMergeBufferSize
  def VsMergeBufferSize = coreParams.VsMergeBufferSize
  def UopWritebackWidth = coreParams.UopWritebackWidth
  def VLUopWritebackWidth = coreParams.VLUopWritebackWidth
  def VSUopWritebackWidth = coreParams.VSUopWritebackWidth
  def VSegmentBufferSize = coreParams.VSegmentBufferSize
  def UncacheBufferSize = coreParams.UncacheBufferSize
  def EnableLoadToLoadForward = coreParams.EnableLoadToLoadForward
  def EnableFastForward = coreParams.EnableFastForward
  def EnableLdVioCheckAfterReset = coreParams.EnableLdVioCheckAfterReset
  def EnableSoftPrefetchAfterReset = coreParams.EnableSoftPrefetchAfterReset
  def EnableCacheErrorAfterReset = coreParams.EnableCacheErrorAfterReset
  def EnableAccurateLoadError = coreParams.EnableAccurateLoadError
  def EnableUncacheWriteOutstanding = coreParams.EnableUncacheWriteOutstanding
  def EnableStorePrefetchAtIssue = coreParams.EnableStorePrefetchAtIssue
  def EnableStorePrefetchAtCommit = coreParams.EnableStorePrefetchAtCommit
  def EnableAtCommitMissTrigger = coreParams.EnableAtCommitMissTrigger
  def EnableStorePrefetchSMS = coreParams.EnableStorePrefetchSMS
  def EnableStorePrefetchSPB = coreParams.EnableStorePrefetchSPB
  require(LoadPipelineWidth == backendParams.LdExuCnt, "LoadPipelineWidth must be equal exuParameters.LduCnt!")
  require(StorePipelineWidth == backendParams.StaCnt, "StorePipelineWidth must be equal exuParameters.StuCnt!")
  def Enable3Load3Store = (LoadPipelineWidth == 3 && StorePipelineWidth == 3)
  def asidLen = coreParams.MMUAsidLen
  def vmidLen = coreParams.MMUVmidLen
  def BTLBWidth = coreParams.LoadPipelineWidth + coreParams.StorePipelineWidth
  def refillBothTlb = coreParams.refillBothTlb
  def iwpuParam = coreParams.iwpuParameters
  def dwpuParam = coreParams.dwpuParameters
  def itlbParams = coreParams.itlbParameters
  def ldtlbParams = coreParams.ldtlbParameters
  def sttlbParams = coreParams.sttlbParameters
  def hytlbParams = coreParams.hytlbParameters
  def pftlbParams = coreParams.pftlbParameters
  def l2ToL1Params = coreParams.l2ToL1tlbParameters
  def btlbParams = coreParams.btlbParameters
  def l2tlbParams = coreParams.l2tlbParameters
  def NumPerfCounters = coreParams.NumPerfCounters

  def instBytes = if (HasCExtension) 2 else 4
  def instOffsetBits = log2Ceil(instBytes)

  def icacheParameters = coreParams.icacheParameters
  def dcacheParameters = coreParams.dcacheParametersOpt.getOrElse(DCacheParameters())

  // dcache block cacheline when lr for LRSCCycles - LRSCBackOff cycles
  // for constrained LR/SC loop
  def LRSCCycles = 64
  // for lr storm
  def LRSCBackOff = 8

  // cache hierarchy configurations
  def l1BusDataWidth = 256

  // load violation predict
  def ResetTimeMax2Pow = 20 //1078576
  def ResetTimeMin2Pow = 10 //1024
  // wait table parameters
  def WaitTableSize = 1024
  def MemPredPCWidth = log2Up(WaitTableSize)
  def LWTUse2BitCounter = true
  // store set parameters
  def SSITSize = WaitTableSize
  def LFSTSize = 32
  def SSIDWidth = log2Up(LFSTSize)
  def LFSTWidth = 4
  def StoreSetEnable = true // LWT will be disabled if SS is enabled
  def LFSTEnable = true

  def PCntIncrStep: Int = 6
  def numPCntHc: Int = 25
  def numPCntPtw: Int = 19

  def numCSRPCntFrontend = 8
  def numCSRPCntCtrl     = 8
  def numCSRPCntLsu      = 8
  def numCSRPCntHc       = 5
  def printEventCoding   = true

  // Parameters for Sdtrig extension
  protected def TriggerNum = 4
  protected def TriggerChainMaxLength = 2
}