1package xiangshan.backend 2 3import chipsalliance.rocketchip.config.Parameters 4import chisel3._ 5import chisel3.util.BitPat.bitPatToUInt 6import chisel3.util._ 7import utils.BundleUtils.makeValid 8import utils.OptionWrapper 9import xiangshan._ 10import xiangshan.backend.datapath.DataConfig._ 11import xiangshan.backend.datapath.DataSource 12import xiangshan.backend.datapath.WbConfig.PregWB 13import xiangshan.backend.decode.{ImmUnion, XDecode} 14import xiangshan.backend.exu.ExeUnitParams 15import xiangshan.backend.fu.FuType 16import xiangshan.backend.fu.fpu.Bundles.Frm 17import xiangshan.backend.fu.vector.Bundles._ 18import xiangshan.backend.issue.{IssueBlockParams, IssueQueueDeqRespBundle, IssueQueueJumpBundle, SchedulerType, EntryDeqRespBundle} 19import xiangshan.backend.regfile.{RfReadPortWithConfig, RfWritePortWithConfig} 20import xiangshan.backend.rob.RobPtr 21import xiangshan.frontend._ 22import xiangshan.mem.{LqPtr, SqPtr} 23 24object Bundles { 25 26 // frontend -> backend 27 class StaticInst(implicit p: Parameters) extends XSBundle { 28 val instr = UInt(32.W) 29 val pc = UInt(VAddrBits.W) 30 val foldpc = UInt(MemPredPCWidth.W) 31 val exceptionVec = ExceptionVec() 32 val trigger = new TriggerCf 33 val preDecodeInfo = new PreDecodeInfo 34 val pred_taken = Bool() 35 val crossPageIPFFix = Bool() 36 val ftqPtr = new FtqPtr 37 val ftqOffset = UInt(log2Up(PredictWidth).W) 38 39 def connectCtrlFlow(source: CtrlFlow): Unit = { 40 this.instr := source.instr 41 this.pc := source.pc 42 this.foldpc := source.foldpc 43 this.exceptionVec := source.exceptionVec 44 this.trigger := source.trigger 45 this.preDecodeInfo := source.pd 46 this.pred_taken := source.pred_taken 47 this.crossPageIPFFix := source.crossPageIPFFix 48 this.ftqPtr := source.ftqPtr 49 this.ftqOffset := source.ftqOffset 50 } 51 } 52 53 // StaticInst --[Decode]--> DecodedInst 54 class DecodedInst(implicit p: Parameters) extends XSBundle { 55 def numSrc = backendParams.numSrc 56 // passed from StaticInst 57 val instr = UInt(32.W) 58 val pc = UInt(VAddrBits.W) 59 val foldpc = UInt(MemPredPCWidth.W) 60 val exceptionVec = ExceptionVec() 61 val trigger = new TriggerCf 62 val preDecodeInfo = new PreDecodeInfo 63 val pred_taken = Bool() 64 val crossPageIPFFix = Bool() 65 val ftqPtr = new FtqPtr 66 val ftqOffset = UInt(log2Up(PredictWidth).W) 67 // decoded 68 val srcType = Vec(numSrc, SrcType()) 69 val lsrc = Vec(numSrc, UInt(6.W)) 70 val ldest = UInt(6.W) 71 val fuType = FuType() 72 val fuOpType = FuOpType() 73 val rfWen = Bool() 74 val fpWen = Bool() 75 val vecWen = Bool() 76 val isXSTrap = Bool() 77 val waitForward = Bool() // no speculate execution 78 val blockBackward = Bool() 79 val flushPipe = Bool() // This inst will flush all the pipe when commit, like exception but can commit 80 val canRobCompress = Bool() 81 val selImm = SelImm() 82 val imm = UInt(ImmUnion.maxLen.W) 83 val fpu = new FPUCtrlSignals 84 val vpu = new VPUCtrlSignals 85 val wfflags = Bool() 86 val isMove = Bool() 87 val uopIdx = UInt(5.W) 88 val uopSplitType = UopSplitType() 89 val isVset = Bool() 90 val firstUop = Bool() 91 val lastUop = Bool() 92 val numUops = UInt(log2Up(MaxUopSize).W) // rob need this 93 val commitType = CommitType() // Todo: remove it 94 95 private def allSignals = srcType.take(3) ++ Seq(fuType, fuOpType, rfWen, fpWen, vecWen, 96 isXSTrap, waitForward, blockBackward, flushPipe, canRobCompress, uopSplitType, selImm) 97 98 def decode(inst: UInt, table: Iterable[(BitPat, List[BitPat])]): DecodedInst = { 99 val decoder: Seq[UInt] = ListLookup( 100 inst, XDecode.decodeDefault.map(bitPatToUInt), 101 table.map{ case (pat, pats) => (pat, pats.map(bitPatToUInt)) }.toArray 102 ) 103 allSignals zip decoder foreach { case (s, d) => s := d } 104 this 105 } 106 107 def isSoftPrefetch: Bool = { 108 fuType === FuType.alu.U && fuOpType === ALUOpType.or && selImm === SelImm.IMM_I && ldest === 0.U 109 } 110 111 def connectStaticInst(source: StaticInst): Unit = { 112 for ((name, data) <- this.elements) { 113 if (source.elements.contains(name)) { 114 data := source.elements(name) 115 } 116 } 117 } 118 } 119 120 // DecodedInst --[Rename]--> DynInst 121 class DynInst(implicit p: Parameters) extends XSBundle { 122 def numSrc = backendParams.numSrc 123 // passed from StaticInst 124 val instr = UInt(32.W) 125 val pc = UInt(VAddrBits.W) 126 val foldpc = UInt(MemPredPCWidth.W) 127 val exceptionVec = ExceptionVec() 128 val trigger = new TriggerCf 129 val preDecodeInfo = new PreDecodeInfo 130 val pred_taken = Bool() 131 val crossPageIPFFix = Bool() 132 val ftqPtr = new FtqPtr 133 val ftqOffset = UInt(log2Up(PredictWidth).W) 134 // passed from DecodedInst 135 val srcType = Vec(numSrc, SrcType()) 136 val lsrc = Vec(numSrc, UInt(6.W)) 137 val ldest = UInt(6.W) 138 val fuType = FuType() 139 val fuOpType = FuOpType() 140 val rfWen = Bool() 141 val fpWen = Bool() 142 val vecWen = Bool() 143 val isXSTrap = Bool() 144 val waitForward = Bool() // no speculate execution 145 val blockBackward = Bool() 146 val flushPipe = Bool() // This inst will flush all the pipe when commit, like exception but can commit 147 val canRobCompress = Bool() 148 val selImm = SelImm() 149 val imm = UInt(XLEN.W) // Todo: check if it need minimized 150 val fpu = new FPUCtrlSignals 151 val vpu = new VPUCtrlSignals 152 val wfflags = Bool() 153 val isMove = Bool() 154 val uopIdx = UInt(5.W) 155 val isVset = Bool() 156 val firstUop = Bool() 157 val lastUop = Bool() 158 val numUops = UInt(log2Up(MaxUopSize).W) // rob need this 159 val commitType = CommitType() 160 // rename 161 val srcState = Vec(numSrc, SrcState()) 162 val dataSource = Vec(numSrc, DataSource()) 163 val l1ExuOH = Vec(numSrc, ExuVec()) 164 val psrc = Vec(numSrc, UInt(PhyRegIdxWidth.W)) 165 val pdest = UInt(PhyRegIdxWidth.W) 166 val robIdx = new RobPtr 167 val instrSize = UInt(log2Ceil(RenameWidth + 1).W) 168 169 val eliminatedMove = Bool() 170 // Take snapshot at this CFI inst 171 val snapshot = Bool() 172 val debugInfo = new PerfDebugInfo 173 val storeSetHit = Bool() // inst has been allocated an store set 174 val waitForRobIdx = new RobPtr // store set predicted previous store robIdx 175 // Load wait is needed 176 // load inst will not be executed until former store (predicted by mdp) addr calcuated 177 val loadWaitBit = Bool() 178 // If (loadWaitBit && loadWaitStrict), strict load wait is needed 179 // load inst will not be executed until ALL former store addr calcuated 180 val loadWaitStrict = Bool() 181 val ssid = UInt(SSIDWidth.W) 182 // Todo 183 val lqIdx = new LqPtr 184 val sqIdx = new SqPtr 185 // debug module 186 val singleStep = Bool() 187 // schedule 188 val replayInst = Bool() 189 190 def isLUI: Bool = this.fuType === FuType.alu.U && (this.selImm === SelImm.IMM_U || this.selImm === SelImm.IMM_LUI32) 191 def isLUI32: Bool = this.fuType === FuType.alu.U && this.selImm === SelImm.IMM_LUI32 192 def isWFI: Bool = this.fuType === FuType.csr.U && fuOpType === CSROpType.wfi 193 194 def isSvinvalBegin(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.nofence && !flush 195 def isSvinval(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.sfence && !flush 196 def isSvinvalEnd(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.nofence && flush 197 198 def srcIsReady: Vec[Bool] = { 199 VecInit(this.srcType.zip(this.srcState).map { 200 case (t, s) => SrcType.isNotReg(t) || SrcState.isReady(s) 201 }) 202 } 203 204 def clearExceptions( 205 exceptionBits: Seq[Int] = Seq(), 206 flushPipe : Boolean = false, 207 replayInst : Boolean = false 208 ): DynInst = { 209 this.exceptionVec.zipWithIndex.filterNot(x => exceptionBits.contains(x._2)).foreach(_._1 := false.B) 210 if (!flushPipe) { this.flushPipe := false.B } 211 if (!replayInst) { this.replayInst := false.B } 212 this 213 } 214 215 def needWriteRf: Bool = (rfWen && ldest =/= 0.U) || fpWen || vecWen 216 } 217 218 trait BundleSource { 219 var wakeupSource = "undefined" 220 var idx = 0 221 } 222 223 /** 224 * 225 * @param pregIdxWidth index width of preg 226 * @param exuIndices exu indices of wakeup bundle 227 */ 228 sealed abstract class IssueQueueWakeUpBaseBundle(pregIdxWidth: Int, val exuIndices: Seq[Int]) extends Bundle { 229 val rfWen = Bool() 230 val fpWen = Bool() 231 val vecWen = Bool() 232 val pdest = UInt(pregIdxWidth.W) 233 234 /** 235 * @param successor Seq[(psrc, srcType)] 236 * @return Seq[if wakeup psrc] 237 */ 238 def wakeUp(successor: Seq[(UInt, UInt)], valid: Bool): Seq[Bool] = { 239 successor.map { case (thatPsrc, srcType) => 240 val pdestMatch = pdest === thatPsrc 241 pdestMatch && ( 242 SrcType.isFp(srcType) && this.fpWen || 243 SrcType.isXp(srcType) && this.rfWen || 244 SrcType.isVp(srcType) && this.vecWen 245 ) && valid 246 } 247 } 248 249 def hasOnlyOneSource: Boolean = exuIndices.size == 1 250 251 def hasMultiSources: Boolean = exuIndices.size > 1 252 253 def isWBWakeUp = this.isInstanceOf[IssueQueueWBWakeUpBundle] 254 255 def isIQWakeUp = this.isInstanceOf[IssueQueueIQWakeUpBundle] 256 257 def exuIdx: Int = { 258 require(hasOnlyOneSource) 259 this.exuIndices.head 260 } 261 } 262 263 class IssueQueueWBWakeUpBundle(exuIndices: Seq[Int], backendParams: BackendParams) extends IssueQueueWakeUpBaseBundle(backendParams.pregIdxWidth, exuIndices) { 264 265 } 266 267 class IssueQueueIQWakeUpBundle(exuIdx: Int, backendParams: BackendParams) extends IssueQueueWakeUpBaseBundle(backendParams.pregIdxWidth, Seq(exuIdx)) { 268 val loadDependency = Vec(backendParams.LduCnt, UInt(3.W)) 269 def fromExuInput(exuInput: ExuInput, l2ExuVecs: Vec[Vec[Bool]]): Unit = { 270 this.rfWen := exuInput.rfWen.getOrElse(false.B) 271 this.fpWen := exuInput.fpWen.getOrElse(false.B) 272 this.vecWen := exuInput.vecWen.getOrElse(false.B) 273 this.pdest := exuInput.pdest 274 } 275 276 def fromExuInput(exuInput: ExuInput): Unit = { 277 this.rfWen := exuInput.rfWen.getOrElse(false.B) 278 this.fpWen := exuInput.fpWen.getOrElse(false.B) 279 this.vecWen := exuInput.vecWen.getOrElse(false.B) 280 this.pdest := exuInput.pdest 281 } 282 } 283 284 class VPUCtrlSignals(implicit p: Parameters) extends XSBundle { 285 // vtype 286 val vill = Bool() 287 val vma = Bool() // 1: agnostic, 0: undisturbed 288 val vta = Bool() // 1: agnostic, 0: undisturbed 289 val vsew = VSew() 290 val vlmul = VLmul() // 1/8~8 --> -3~3 291 292 val vm = Bool() // 0: need v0.t 293 val vstart = Vl() 294 295 // float rounding mode 296 val frm = Frm() 297 // scalar float instr and vector float reduction 298 val fpu = Fpu() 299 // vector fix int rounding mode 300 val vxrm = Vxrm() 301 // vector uop index, exclude other non-vector uop 302 val vuopIdx = UopIdx() 303 // maybe used if data dependancy 304 val vmask = UInt(MaskSrcData().dataWidth.W) 305 val vl = Vl() 306 307 // vector load/store 308 val nf = Nf() 309 310 val needScalaSrc = Bool() 311 val permImmTruncate = Bool() // opivi 312 313 val isReverse = Bool() // vrsub, vrdiv 314 val isExt = Bool() 315 val isNarrow = Bool() 316 val isDstMask = Bool() // vvm, vvvm, mmm 317 val isOpMask = Bool() // vmand, vmnand 318 val isMove = Bool() // vmv.s.x, vmv.v.v, vmv.v.x, vmv.v.i 319 320 def vtype: VType = { 321 val res = Wire(VType()) 322 res.illegal := this.vill 323 res.vma := this.vma 324 res.vta := this.vta 325 res.vsew := this.vsew 326 res.vlmul := this.vlmul 327 res 328 } 329 330 def vconfig: VConfig = { 331 val res = Wire(VConfig()) 332 res.vtype := this.vtype 333 res.vl := this.vl 334 res 335 } 336 } 337 338 // DynInst --[IssueQueue]--> DataPath 339 class IssueQueueIssueBundle( 340 iqParams: IssueBlockParams, 341 val exuParams: ExeUnitParams, 342 )(implicit 343 p: Parameters 344 ) extends Bundle { 345 private val rfReadDataCfgSet: Seq[Set[DataConfig]] = exuParams.getRfReadDataCfgSet 346 347 val rf: MixedVec[MixedVec[RfReadPortWithConfig]] = Flipped(MixedVec( 348 rfReadDataCfgSet.map((set: Set[DataConfig]) => 349 MixedVec(set.map((x: DataConfig) => new RfReadPortWithConfig(x, exuParams.rdPregIdxWidth)).toSeq) 350 ) 351 )) 352 353 val srcType = Vec(exuParams.numRegSrc, SrcType()) // used to select imm or reg data 354 val immType = SelImm() // used to select imm extractor 355 val common = new ExuInput(exuParams) 356 val addrOH = UInt(iqParams.numEntries.W) 357 358 def exuIdx = exuParams.exuIdx 359 def getSource: SchedulerType = exuParams.getWBSource 360 def getIntWbBusyBundle = common.rfWen.toSeq 361 def getVfWbBusyBundle = common.getVfWen.toSeq 362 def getIntRfReadBundle: Seq[RfReadPortWithConfig] = rf.flatten.filter(_.readInt) 363 def getVfRfReadBundle: Seq[RfReadPortWithConfig] = rf.flatten.filter(_.readVf) 364 365 def getIntRfReadValidBundle(issueValid: Bool): Seq[ValidIO[RfReadPortWithConfig]] = { 366 getIntRfReadBundle.zip(srcType).map { 367 case (rfRd: RfReadPortWithConfig, t: UInt) => 368 makeValid(issueValid && SrcType.isXp(t), rfRd) 369 } 370 } 371 372 def getVfRfReadValidBundle(issueValid: Bool): Seq[ValidIO[RfReadPortWithConfig]] = { 373 getVfRfReadBundle.zip(srcType).map { 374 case (rfRd: RfReadPortWithConfig, t: UInt) => 375 makeValid(issueValid && SrcType.isVfp(t), rfRd) 376 } 377 } 378 379 def getIntRfWriteValidBundle(issueValid: Bool) = { 380 381 } 382 } 383 384 class OGRespBundle(implicit p:Parameters, params: IssueBlockParams) extends XSBundle { 385 val issueQueueParams = this.params 386 val og0resp = Valid(new EntryDeqRespBundle) 387 val og1resp = Valid(new EntryDeqRespBundle) 388 } 389 390 class fuBusyRespBundle(implicit p: Parameters, params: IssueBlockParams) extends Bundle { 391 val respType = RSFeedbackType() // update credit if needs replay 392 val rfWen = Bool() // TODO: use params to identify IntWB/VfWB 393 val fuType = FuType() 394 } 395 396 class WbFuBusyTableWriteBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 397 private val intCertainLat = params.intLatencyCertain 398 private val vfCertainLat = params.vfLatencyCertain 399 private val intLat = params.intLatencyValMax 400 private val vfLat = params.vfLatencyValMax 401 402 val intWbBusyTable = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 403 val vfWbBusyTable = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 404 val intDeqRespSet = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 405 val vfDeqRespSet = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 406 } 407 408 class WbFuBusyTableReadBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 409 private val intCertainLat = params.intLatencyCertain 410 private val vfCertainLat = params.vfLatencyCertain 411 private val intLat = params.intLatencyValMax 412 private val vfLat = params.vfLatencyValMax 413 414 val intWbBusyTable = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 415 val vfWbBusyTable = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 416 } 417 418 class WbConflictBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 419 private val intCertainLat = params.intLatencyCertain 420 private val vfCertainLat = params.vfLatencyCertain 421 422 val intConflict = OptionWrapper(intCertainLat, Bool()) 423 val vfConflict = OptionWrapper(vfCertainLat, Bool()) 424 } 425 426 // DataPath --[ExuInput]--> Exu 427 class ExuInput(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 428 val fuType = FuType() 429 val fuOpType = FuOpType() 430 val src = Vec(params.numRegSrc, UInt(params.dataBitsMax.W)) 431 val imm = UInt(XLEN.W) 432 val robIdx = new RobPtr 433 val iqIdx = UInt(log2Up(MemIQSizeMax).W)// Only used by store yet 434 val isFirstIssue = Bool() // Only used by store yet 435 val pdest = UInt(params.wbPregIdxWidth.W) 436 val rfWen = if (params.writeIntRf) Some(Bool()) else None 437 val fpWen = if (params.writeFpRf) Some(Bool()) else None 438 val vecWen = if (params.writeVecRf) Some(Bool()) else None 439 val fpu = if (params.writeFflags) Some(new FPUCtrlSignals) else None 440 val vpu = if (params.needVPUCtrl) Some(new VPUCtrlSignals) else None 441 val flushPipe = if (params.flushPipe) Some(Bool()) else None 442 val pc = if (params.needPc) Some(UInt(VAddrData().dataWidth.W)) else None 443 val preDecode = if (params.hasPredecode) Some(new PreDecodeInfo) else None 444 val ftqIdx = if (params.needPc || params.replayInst) 445 Some(new FtqPtr) else None 446 val ftqOffset = if (params.needPc || params.replayInst) 447 Some(UInt(log2Up(PredictWidth).W)) else None 448 val predictInfo = if (params.hasPredecode) Some(new Bundle { 449 val target = UInt(VAddrData().dataWidth.W) 450 val taken = Bool() 451 }) else None 452 val sqIdx = if (params.hasMemAddrFu || params.hasStdFu) Some(new SqPtr) else None 453 val lqIdx = if (params.hasMemAddrFu) Some(new LqPtr) else None 454 val dataSources = Vec(params.numRegSrc, DataSource()) 455 val l1ExuVec = Vec(params.numRegSrc, ExuVec()) 456 val srcTimer = OptionWrapper(params.isIQWakeUpSink, Vec(params.numRegSrc, UInt(3.W))) 457 val loadDependency = OptionWrapper(params.isIQWakeUpSink, Vec(LoadPipelineWidth, UInt(3.W))) 458 val deqPortIdx = OptionWrapper(params.hasLoadFu, UInt(log2Ceil(LoadPipelineWidth).W)) 459 460 val perfDebugInfo = new PerfDebugInfo() 461 462 def exuIdx = this.params.exuIdx 463 464 def needCancel(og0CancelVec: Vec[Bool], og1CancelVec: Vec[Bool]) : Bool = { 465 if (params.isIQWakeUpSink) { 466 require( 467 og0CancelVec.size == l1ExuVec.head.size, 468 s"cancelVecSize: {og0: ${og0CancelVec.size}, og1: ${og1CancelVec.size}}" 469 ) 470 val l1Cancel: Bool = l1ExuVec.zip(srcTimer.get).map { 471 case(exuOH: Vec[Bool], srcTimer: UInt) => 472 (exuOH.asUInt & og0CancelVec.asUInt).orR && srcTimer === 1.U 473 }.reduce(_ | _) 474 l1Cancel 475 } else { 476 false.B 477 } 478 } 479 480 def getVfWen = { 481 if (params.writeFpRf) this.fpWen 482 else if(params.writeVecRf) this.vecWen 483 else None 484 } 485 486 def fromIssueBundle(source: IssueQueueIssueBundle): Unit = { 487 // src is assigned to rfReadData 488 this.fuType := source.common.fuType 489 this.fuOpType := source.common.fuOpType 490 this.imm := source.common.imm 491 this.robIdx := source.common.robIdx 492 this.pdest := source.common.pdest 493 this.isFirstIssue := source.common.isFirstIssue // Only used by mem debug log 494 this.iqIdx := source.common.iqIdx // Only used by mem feedback 495 this.dataSources := source.common.dataSources 496 this.l1ExuVec := source.common.l1ExuVec 497 this.rfWen .foreach(_ := source.common.rfWen.get) 498 this.fpWen .foreach(_ := source.common.fpWen.get) 499 this.vecWen .foreach(_ := source.common.vecWen.get) 500 this.fpu .foreach(_ := source.common.fpu.get) 501 this.vpu .foreach(_ := source.common.vpu.get) 502 this.flushPipe .foreach(_ := source.common.flushPipe.get) 503 this.pc .foreach(_ := source.common.pc.get) 504 this.preDecode .foreach(_ := source.common.preDecode.get) 505 this.ftqIdx .foreach(_ := source.common.ftqIdx.get) 506 this.ftqOffset .foreach(_ := source.common.ftqOffset.get) 507 this.predictInfo .foreach(_ := source.common.predictInfo.get) 508 this.lqIdx .foreach(_ := source.common.lqIdx.get) 509 this.sqIdx .foreach(_ := source.common.sqIdx.get) 510 this.srcTimer .foreach(_ := source.common.srcTimer.get) 511 this.loadDependency.foreach(_ := source.common.loadDependency.get.map(_ << 1)) 512 this.deqPortIdx .foreach(_ := source.common.deqPortIdx.get) 513 } 514 } 515 516 // ExuInput --[FuncUnit]--> ExuOutput 517 class ExuOutput( 518 val params: ExeUnitParams, 519 )(implicit 520 val p: Parameters 521 ) extends Bundle with BundleSource with HasXSParameter { 522 val data = UInt(params.dataBitsMax.W) 523 val pdest = UInt(params.wbPregIdxWidth.W) 524 val robIdx = new RobPtr 525 val intWen = if (params.writeIntRf) Some(Bool()) else None 526 val fpWen = if (params.writeFpRf) Some(Bool()) else None 527 val vecWen = if (params.writeVecRf) Some(Bool()) else None 528 val redirect = if (params.hasRedirect) Some(ValidIO(new Redirect)) else None 529 val fflags = if (params.writeFflags) Some(UInt(5.W)) else None 530 val wflags = if (params.writeFflags) Some(Bool()) else None 531 val vxsat = if (params.writeVxsat) Some(Bool()) else None 532 val exceptionVec = if (params.exceptionOut.nonEmpty) Some(ExceptionVec()) else None 533 val flushPipe = if (params.flushPipe) Some(Bool()) else None 534 val replay = if (params.replayInst) Some(Bool()) else None 535 val lqIdx = if (params.hasLoadFu) Some(new LqPtr()) else None 536 val sqIdx = if (params.hasStoreAddrFu || params.hasStdFu) 537 Some(new SqPtr()) else None 538 // uop info 539 val predecodeInfo = if(params.hasPredecode) Some(new PreDecodeInfo) else None 540 val debug = new DebugBundle 541 val debugInfo = new PerfDebugInfo 542 } 543 544 // ExuOutput + DynInst --> WriteBackBundle 545 class WriteBackBundle(val params: PregWB, backendParams: BackendParams)(implicit p: Parameters) extends Bundle with BundleSource { 546 val rfWen = Bool() 547 val fpWen = Bool() 548 val vecWen = Bool() 549 val pdest = UInt(params.pregIdxWidth(backendParams).W) 550 val data = UInt(params.dataWidth.W) 551 val robIdx = new RobPtr()(p) 552 val flushPipe = Bool() 553 val replayInst = Bool() 554 val redirect = ValidIO(new Redirect) 555 val fflags = UInt(5.W) 556 val vxsat = Bool() 557 val exceptionVec = ExceptionVec() 558 val debug = new DebugBundle 559 val debugInfo = new PerfDebugInfo 560 561 this.wakeupSource = s"WB(${params.toString})" 562 563 def fromExuOutput(source: ExuOutput) = { 564 this.rfWen := source.intWen.getOrElse(false.B) 565 this.fpWen := source.fpWen.getOrElse(false.B) 566 this.vecWen := source.vecWen.getOrElse(false.B) 567 this.pdest := source.pdest 568 this.data := source.data 569 this.robIdx := source.robIdx 570 this.flushPipe := source.flushPipe.getOrElse(false.B) 571 this.replayInst := source.replay.getOrElse(false.B) 572 this.redirect := source.redirect.getOrElse(0.U.asTypeOf(this.redirect)) 573 this.fflags := source.fflags.getOrElse(0.U.asTypeOf(this.fflags)) 574 this.vxsat := source.vxsat.getOrElse(0.U.asTypeOf(this.vxsat)) 575 this.exceptionVec := source.exceptionVec.getOrElse(0.U.asTypeOf(this.exceptionVec)) 576 this.debug := source.debug 577 this.debugInfo := source.debugInfo 578 } 579 580 def asIntRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 581 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(IntData()).addrWidth))) 582 rfWrite.wen := this.rfWen && fire 583 rfWrite.addr := this.pdest 584 rfWrite.data := this.data 585 rfWrite.intWen := this.rfWen 586 rfWrite.fpWen := false.B 587 rfWrite.vecWen := false.B 588 rfWrite 589 } 590 591 def asVfRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 592 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(VecData()).addrWidth))) 593 rfWrite.wen := (this.fpWen || this.vecWen) && fire 594 rfWrite.addr := this.pdest 595 rfWrite.data := this.data 596 rfWrite.intWen := false.B 597 rfWrite.fpWen := this.fpWen 598 rfWrite.vecWen := this.vecWen 599 rfWrite 600 } 601 } 602 603 // ExuOutput --> ExuBypassBundle --[DataPath]-->ExuInput 604 // / 605 // [IssueQueue]--> ExuInput -- 606 class ExuBypassBundle( 607 val params: ExeUnitParams, 608 )(implicit 609 val p: Parameters 610 ) extends Bundle { 611 val data = UInt(params.dataBitsMax.W) 612 val pdest = UInt(params.wbPregIdxWidth.W) 613 } 614 615 class ExceptionInfo extends Bundle { 616 val pc = UInt(VAddrData().dataWidth.W) 617 val instr = UInt(32.W) 618 val commitType = CommitType() 619 val exceptionVec = ExceptionVec() 620 val singleStep = Bool() 621 val crossPageIPFFix = Bool() 622 val isInterrupt = Bool() 623 } 624 625 object UopIdx { 626 def apply()(implicit p: Parameters): UInt = UInt(log2Up(p(XSCoreParamsKey).MaxUopSize + 1).W) 627 } 628 629 object FuLatency { 630 def apply(): UInt = UInt(width.W) 631 632 def width = 4 // 0~15 // Todo: assosiate it with FuConfig 633 } 634 635 object ExuVec { 636 def apply(exuNum: Int): Vec[Bool] = Vec(exuNum, Bool()) 637 638 def apply()(implicit p: Parameters): Vec[Bool] = Vec(width, Bool()) 639 640 def width(implicit p: Parameters): Int = p(XSCoreParamsKey).backendParams.numExu 641 } 642 643 class CancelSignal(implicit p: Parameters) extends XSBundle { 644 val rfWen = Bool() 645 val fpWen = Bool() 646 val vecWen = Bool() 647 val pdest = UInt(PhyRegIdxWidth.W) 648 649 def needCancel(srcType: UInt, psrc: UInt, valid: Bool): Bool = { 650 val pdestMatch = pdest === psrc 651 pdestMatch && ( 652 SrcType.isFp(srcType) && !this.rfWen || 653 SrcType.isXp(srcType) && this.rfWen || 654 SrcType.isVp(srcType) && !this.rfWen 655 ) && valid 656 } 657 } 658 659 class MemExuInput(isVector: Boolean = false)(implicit p: Parameters) extends XSBundle { 660 val uop = new DynInst 661 val src = if (isVector) Vec(5, UInt(VLEN.W)) else Vec(3, UInt(XLEN.W)) 662 val iqIdx = UInt(log2Up(MemIQSizeMax).W) 663 val isFirstIssue = Bool() 664 val deqPortIdx = UInt(log2Ceil(LoadPipelineWidth).W) 665 } 666 667 class MemExuOutput(isVector: Boolean = false)(implicit p: Parameters) extends XSBundle { 668 val uop = new DynInst 669 val data = if (isVector) UInt(VLEN.W) else UInt(XLEN.W) 670 val debug = new DebugBundle 671 } 672 673 class MemMicroOpRbExt(implicit p: Parameters) extends XSBundle { 674 val uop = new DynInst 675 val flag = UInt(1.W) 676 } 677 678 object LoadShouldCancel { 679 def apply(loadDependency: Option[Seq[UInt]], ldCancel: Seq[LoadCancelIO]): Bool = { 680 val ld1Cancel = loadDependency.map(deps => 681 deps.zipWithIndex.map { case (dep, ldPortIdx) => 682 ldCancel.map(_.ld1Cancel).map(cancel => cancel.fire && dep(1) && cancel.bits === ldPortIdx.U).reduce(_ || _) 683 }.reduce(_ || _) 684 ) 685 val ld2Cancel = loadDependency.map(deps => 686 deps.zipWithIndex.map { case (dep, ldPortIdx) => 687 ldCancel.map(_.ld2Cancel).map(cancel => cancel.fire && dep(2) && cancel.bits === ldPortIdx.U).reduce(_ || _) 688 }.reduce(_ || _) 689 ) 690 ld1Cancel.map(_ || ld2Cancel.get).getOrElse(false.B) 691 } 692 } 693} 694