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 psrc = Vec(numSrc, UInt(PhyRegIdxWidth.W)) 163 val pdest = UInt(PhyRegIdxWidth.W) 164 val robIdx = new RobPtr 165 val instrSize = UInt(log2Ceil(RenameWidth + 1).W) 166 167 val eliminatedMove = Bool() 168 // Take snapshot at this CFI inst 169 val snapshot = Bool() 170 val debugInfo = new PerfDebugInfo 171 val storeSetHit = Bool() // inst has been allocated an store set 172 val waitForRobIdx = new RobPtr // store set predicted previous store robIdx 173 // Load wait is needed 174 // load inst will not be executed until former store (predicted by mdp) addr calcuated 175 val loadWaitBit = Bool() 176 // If (loadWaitBit && loadWaitStrict), strict load wait is needed 177 // load inst will not be executed until ALL former store addr calcuated 178 val loadWaitStrict = Bool() 179 val ssid = UInt(SSIDWidth.W) 180 // Todo 181 val lqIdx = new LqPtr 182 val sqIdx = new SqPtr 183 // debug module 184 val singleStep = Bool() 185 // schedule 186 val replayInst = Bool() 187 188 def isLUI: Bool = this.fuType === FuType.alu.U && (this.selImm === SelImm.IMM_U || this.selImm === SelImm.IMM_LUI32) 189 def isLUI32: Bool = this.fuType === FuType.alu.U && this.selImm === SelImm.IMM_LUI32 190 def isWFI: Bool = this.fuType === FuType.csr.U && fuOpType === CSROpType.wfi 191 192 def isSvinvalBegin(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.nofence && !flush 193 def isSvinval(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.sfence && !flush 194 def isSvinvalEnd(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.nofence && flush 195 196 def srcIsReady: Vec[Bool] = { 197 VecInit(this.srcType.zip(this.srcState).map { 198 case (t, s) => SrcType.isNotReg(t) || SrcState.isReady(s) 199 }) 200 } 201 202 def clearExceptions( 203 exceptionBits: Seq[Int] = Seq(), 204 flushPipe : Boolean = false, 205 replayInst : Boolean = false 206 ): DynInst = { 207 this.exceptionVec.zipWithIndex.filterNot(x => exceptionBits.contains(x._2)).foreach(_._1 := false.B) 208 if (!flushPipe) { this.flushPipe := false.B } 209 if (!replayInst) { this.replayInst := false.B } 210 this 211 } 212 213 def needWriteRf: Bool = (rfWen && ldest =/= 0.U) || fpWen || vecWen 214 } 215 216 trait BundleSource { 217 var wakeupSource = "undefined" 218 var idx = 0 219 } 220 221 /** 222 * 223 * @param pregIdxWidth index width of preg 224 * @param exuIndices exu indices of wakeup bundle 225 */ 226 sealed abstract class IssueQueueWakeUpBaseBundle(pregIdxWidth: Int, val exuIndices: Seq[Int]) extends Bundle { 227 val rfWen = Bool() 228 val fpWen = Bool() 229 val vecWen = Bool() 230 val pdest = UInt(pregIdxWidth.W) 231 232 /** 233 * @param successor Seq[(psrc, srcType)] 234 * @return Seq[if wakeup psrc] 235 */ 236 def wakeUp(successor: Seq[(UInt, UInt)], valid: Bool): Seq[Bool] = { 237 successor.map { case (thatPsrc, srcType) => 238 val pdestMatch = pdest === thatPsrc 239 pdestMatch && ( 240 SrcType.isFp(srcType) && this.fpWen || 241 SrcType.isXp(srcType) && this.rfWen || 242 SrcType.isVp(srcType) && this.vecWen 243 ) && valid 244 } 245 } 246 247 def hasOnlyOneSource: Boolean = exuIndices.size == 1 248 249 def hasMultiSources: Boolean = exuIndices.size > 1 250 251 def isWBWakeUp = this.isInstanceOf[IssueQueueWBWakeUpBundle] 252 253 def isIQWakeUp = this.isInstanceOf[IssueQueueIQWakeUpBundle] 254 255 def exuIdx: Int = { 256 require(hasOnlyOneSource) 257 this.exuIndices.head 258 } 259 } 260 261 class IssueQueueWBWakeUpBundle(exuIndices: Seq[Int], backendParams: BackendParams) extends IssueQueueWakeUpBaseBundle(backendParams.pregIdxWidth, exuIndices) { 262 263 } 264 265 class IssueQueueIQWakeUpBundle(exuIdx: Int, backendParams: BackendParams) extends IssueQueueWakeUpBaseBundle(backendParams.pregIdxWidth, Seq(exuIdx)) { 266 val loadDependency = Vec(backendParams.LduCnt, UInt(3.W)) 267 def fromExuInput(exuInput: ExuInput, l2ExuVecs: Vec[Vec[Bool]]): Unit = { 268 this.rfWen := exuInput.rfWen.getOrElse(false.B) 269 this.fpWen := exuInput.fpWen.getOrElse(false.B) 270 this.vecWen := exuInput.vecWen.getOrElse(false.B) 271 this.pdest := exuInput.pdest 272 } 273 274 def fromExuInput(exuInput: ExuInput): Unit = { 275 this.rfWen := exuInput.rfWen.getOrElse(false.B) 276 this.fpWen := exuInput.fpWen.getOrElse(false.B) 277 this.vecWen := exuInput.vecWen.getOrElse(false.B) 278 this.pdest := exuInput.pdest 279 } 280 } 281 282 class VPUCtrlSignals(implicit p: Parameters) extends XSBundle { 283 // vtype 284 val vill = Bool() 285 val vma = Bool() // 1: agnostic, 0: undisturbed 286 val vta = Bool() // 1: agnostic, 0: undisturbed 287 val vsew = VSew() 288 val vlmul = VLmul() // 1/8~8 --> -3~3 289 290 val vm = Bool() // 0: need v0.t 291 val vstart = Vl() 292 293 // float rounding mode 294 val frm = Frm() 295 // scalar float instr and vector float reduction 296 val fpu = Fpu() 297 // vector fix int rounding mode 298 val vxrm = Vxrm() 299 // vector uop index, exclude other non-vector uop 300 val vuopIdx = UopIdx() 301 // maybe used if data dependancy 302 val vmask = UInt(MaskSrcData().dataWidth.W) 303 val vl = Vl() 304 305 // vector load/store 306 val nf = Nf() 307 308 val needScalaSrc = Bool() 309 val permImmTruncate = Bool() // opivi 310 311 val isReverse = Bool() // vrsub, vrdiv 312 val isExt = Bool() 313 val isNarrow = Bool() 314 val isDstMask = Bool() // vvm, vvvm, mmm 315 val isOpMask = Bool() // vmand, vmnand 316 val isMove = Bool() // vmv.s.x, vmv.v.v, vmv.v.x, vmv.v.i 317 318 def vtype: VType = { 319 val res = Wire(VType()) 320 res.illegal := this.vill 321 res.vma := this.vma 322 res.vta := this.vta 323 res.vsew := this.vsew 324 res.vlmul := this.vlmul 325 res 326 } 327 328 def vconfig: VConfig = { 329 val res = Wire(VConfig()) 330 res.vtype := this.vtype 331 res.vl := this.vl 332 res 333 } 334 } 335 336 // DynInst --[IssueQueue]--> DataPath 337 class IssueQueueIssueBundle( 338 iqParams: IssueBlockParams, 339 val exuParams: ExeUnitParams, 340 )(implicit 341 p: Parameters 342 ) extends Bundle { 343 private val rfReadDataCfgSet: Seq[Set[DataConfig]] = exuParams.getRfReadDataCfgSet 344 345 val rf: MixedVec[MixedVec[RfReadPortWithConfig]] = Flipped(MixedVec( 346 rfReadDataCfgSet.map((set: Set[DataConfig]) => 347 MixedVec(set.map((x: DataConfig) => new RfReadPortWithConfig(x, exuParams.rdPregIdxWidth)).toSeq) 348 ) 349 )) 350 351 val srcType = Vec(exuParams.numRegSrc, SrcType()) // used to select imm or reg data 352 val immType = SelImm() // used to select imm extractor 353 val common = new ExuInput(exuParams) 354 val jmp = if (exuParams.needPc) Some(Flipped(new IssueQueueJumpBundle)) else None 355 val addrOH = UInt(iqParams.numEntries.W) 356 357 def exuIdx = exuParams.exuIdx 358 def getSource: SchedulerType = exuParams.getWBSource 359 def getIntWbBusyBundle = common.rfWen.toSeq 360 def getVfWbBusyBundle = common.getVfWen.toSeq 361 def getIntRfReadBundle: Seq[RfReadPortWithConfig] = rf.flatten.filter(_.readInt) 362 def getVfRfReadBundle: Seq[RfReadPortWithConfig] = rf.flatten.filter(_.readVf) 363 364 def getIntRfReadValidBundle(issueValid: Bool): Seq[ValidIO[RfReadPortWithConfig]] = { 365 getIntRfReadBundle.zip(srcType).map { 366 case (rfRd: RfReadPortWithConfig, t: UInt) => 367 makeValid(issueValid && SrcType.isXp(t), rfRd) 368 } 369 } 370 371 def getVfRfReadValidBundle(issueValid: Bool): Seq[ValidIO[RfReadPortWithConfig]] = { 372 getVfRfReadBundle.zip(srcType).map { 373 case (rfRd: RfReadPortWithConfig, t: UInt) => 374 makeValid(issueValid && SrcType.isVfp(t), rfRd) 375 } 376 } 377 378 def getIntRfWriteValidBundle(issueValid: Bool) = { 379 380 } 381 } 382 383 class OGRespBundle(implicit p:Parameters, params: IssueBlockParams) extends XSBundle { 384 val issueQueueParams = this.params 385 val og0resp = Valid(new EntryDeqRespBundle) 386 val og1resp = Valid(new EntryDeqRespBundle) 387 } 388 389 class fuBusyRespBundle(implicit p: Parameters, params: IssueBlockParams) extends Bundle { 390 val respType = RSFeedbackType() // update credit if needs replay 391 val rfWen = Bool() // TODO: use params to identify IntWB/VfWB 392 val fuType = FuType() 393 } 394 395 class WbFuBusyTableWriteBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 396 private val intCertainLat = params.intLatencyCertain 397 private val vfCertainLat = params.vfLatencyCertain 398 private val intLat = params.intLatencyValMax 399 private val vfLat = params.vfLatencyValMax 400 401 val intWbBusyTable = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 402 val vfWbBusyTable = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 403 val intDeqRespSet = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 404 val vfDeqRespSet = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 405 } 406 407 class WbFuBusyTableReadBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 408 private val intCertainLat = params.intLatencyCertain 409 private val vfCertainLat = params.vfLatencyCertain 410 private val intLat = params.intLatencyValMax 411 private val vfLat = params.vfLatencyValMax 412 413 val intWbBusyTable = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 414 val vfWbBusyTable = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 415 } 416 417 class WbConflictBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 418 private val intCertainLat = params.intLatencyCertain 419 private val vfCertainLat = params.vfLatencyCertain 420 421 val intConflict = OptionWrapper(intCertainLat, Bool()) 422 val vfConflict = OptionWrapper(vfCertainLat, Bool()) 423 } 424 425 // DataPath --[ExuInput]--> Exu 426 class ExuInput(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 427 val fuType = FuType() 428 val fuOpType = FuOpType() 429 val src = Vec(params.numRegSrc, UInt(params.dataBitsMax.W)) 430 val imm = UInt(XLEN.W) 431 val robIdx = new RobPtr 432 val iqIdx = UInt(log2Up(MemIQSizeMax).W)// Only used by store yet 433 val isFirstIssue = Bool() // Only used by store yet 434 val pdest = UInt(params.wbPregIdxWidth.W) 435 val rfWen = if (params.writeIntRf) Some(Bool()) else None 436 val fpWen = if (params.writeFpRf) Some(Bool()) else None 437 val vecWen = if (params.writeVecRf) Some(Bool()) else None 438 val fpu = if (params.writeFflags) Some(new FPUCtrlSignals) else None 439 val vpu = if (params.needVPUCtrl) Some(new VPUCtrlSignals) else None 440 val flushPipe = if (params.flushPipe) Some(Bool()) else None 441 val pc = if (params.needPc) Some(UInt(VAddrData().dataWidth.W)) else None 442 val jalrTarget = if (params.hasJmpFu) 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 = OptionWrapper(params.isIQWakeUpSink, 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 def exuIdx = this.params.exuIdx 461 462 def needCancel(og0CancelVec: Vec[Bool], og1CancelVec: Vec[Bool]) : Bool = { 463 if (params.isIQWakeUpSink) { 464 require( 465 og0CancelVec.size == l1ExuVec.get.head.size, 466 s"cancelVecSize: {og0: ${og0CancelVec.size}, og1: ${og1CancelVec.size}}" 467 ) 468 val l1Cancel: Bool = l1ExuVec.get.zip(srcTimer.get).map { 469 case(exuOH: Vec[Bool], srcTimer: UInt) => 470 (exuOH.asUInt & og0CancelVec.asUInt).orR && srcTimer === 1.U 471 }.reduce(_ | _) 472 l1Cancel 473 } else { 474 false.B 475 } 476 } 477 478 def getVfWen = { 479 if (params.writeFpRf) this.fpWen 480 else if(params.writeVecRf) this.vecWen 481 else None 482 } 483 484 def fromIssueBundle(source: IssueQueueIssueBundle): Unit = { 485 // src is assigned to rfReadData 486 this.fuType := source.common.fuType 487 this.fuOpType := source.common.fuOpType 488 this.imm := source.common.imm 489 this.robIdx := source.common.robIdx 490 this.pdest := source.common.pdest 491 this.isFirstIssue := source.common.isFirstIssue // Only used by mem debug log 492 this.iqIdx := source.common.iqIdx // Only used by mem feedback 493 this.dataSources := source.common.dataSources 494 this.rfWen .foreach(_ := source.common.rfWen.get) 495 this.fpWen .foreach(_ := source.common.fpWen.get) 496 this.vecWen .foreach(_ := source.common.vecWen.get) 497 this.fpu .foreach(_ := source.common.fpu.get) 498 this.vpu .foreach(_ := source.common.vpu.get) 499 this.flushPipe .foreach(_ := source.common.flushPipe.get) 500 this.pc .foreach(_ := source.jmp.get.pc) 501 this.jalrTarget .foreach(_ := source.jmp.get.target) 502 this.preDecode .foreach(_ := source.common.preDecode.get) 503 this.ftqIdx .foreach(_ := source.common.ftqIdx.get) 504 this.ftqOffset .foreach(_ := source.common.ftqOffset.get) 505 this.predictInfo .foreach(_ := source.common.predictInfo.get) 506 this.lqIdx .foreach(_ := source.common.lqIdx.get) 507 this.sqIdx .foreach(_ := source.common.sqIdx.get) 508 this.l1ExuVec .foreach(_ := source.common.l1ExuVec.get) 509 this.srcTimer .foreach(_ := source.common.srcTimer.get) 510 this.loadDependency.foreach(_ := source.common.loadDependency.get.map(_ << 1)) 511 this.deqPortIdx .foreach(_ := source.common.deqPortIdx.get) 512 } 513 } 514 515 // ExuInput --[FuncUnit]--> ExuOutput 516 class ExuOutput( 517 val params: ExeUnitParams, 518 )(implicit 519 val p: Parameters 520 ) extends Bundle with BundleSource with HasXSParameter { 521 val data = UInt(params.dataBitsMax.W) 522 val pdest = UInt(params.wbPregIdxWidth.W) 523 val robIdx = new RobPtr 524 val intWen = if (params.writeIntRf) Some(Bool()) else None 525 val fpWen = if (params.writeFpRf) Some(Bool()) else None 526 val vecWen = if (params.writeVecRf) Some(Bool()) else None 527 val redirect = if (params.hasRedirect) Some(ValidIO(new Redirect)) else None 528 val fflags = if (params.writeFflags) Some(UInt(5.W)) else None 529 val wflags = if (params.writeFflags) Some(Bool()) else None 530 val vxsat = if (params.writeVxsat) Some(Bool()) else None 531 val exceptionVec = if (params.exceptionOut.nonEmpty) Some(ExceptionVec()) else None 532 val flushPipe = if (params.flushPipe) Some(Bool()) else None 533 val replay = if (params.replayInst) Some(Bool()) else None 534 val lqIdx = if (params.hasLoadFu) Some(new LqPtr()) else None 535 val sqIdx = if (params.hasStoreAddrFu || params.hasStdFu) 536 Some(new SqPtr()) else None 537 val ftqIdx = if (params.needPc || params.replayInst) 538 Some(new FtqPtr) else None 539 val ftqOffset = if (params.needPc || params.replayInst) 540 Some(UInt(log2Up(PredictWidth).W)) else None 541 // uop info 542 val predecodeInfo = if(params.hasPredecode) Some(new PreDecodeInfo) else None 543 val debug = new DebugBundle 544 val debugInfo = new PerfDebugInfo 545 } 546 547 // ExuOutput + DynInst --> WriteBackBundle 548 class WriteBackBundle(val params: PregWB, backendParams: BackendParams)(implicit p: Parameters) extends Bundle with BundleSource { 549 val rfWen = Bool() 550 val fpWen = Bool() 551 val vecWen = Bool() 552 val pdest = UInt(params.pregIdxWidth(backendParams).W) 553 val data = UInt(params.dataWidth.W) 554 val robIdx = new RobPtr()(p) 555 val flushPipe = Bool() 556 val replayInst = Bool() 557 val redirect = ValidIO(new Redirect) 558 val fflags = UInt(5.W) 559 val vxsat = Bool() 560 val exceptionVec = ExceptionVec() 561 val debug = new DebugBundle 562 val debugInfo = new PerfDebugInfo 563 564 this.wakeupSource = s"WB(${params.toString})" 565 566 def fromExuOutput(source: ExuOutput) = { 567 this.rfWen := source.intWen.getOrElse(false.B) 568 this.fpWen := source.fpWen.getOrElse(false.B) 569 this.vecWen := source.vecWen.getOrElse(false.B) 570 this.pdest := source.pdest 571 this.data := source.data 572 this.robIdx := source.robIdx 573 this.flushPipe := source.flushPipe.getOrElse(false.B) 574 this.replayInst := source.replay.getOrElse(false.B) 575 this.redirect := source.redirect.getOrElse(0.U.asTypeOf(this.redirect)) 576 this.fflags := source.fflags.getOrElse(0.U.asTypeOf(this.fflags)) 577 this.vxsat := source.vxsat.getOrElse(0.U.asTypeOf(this.vxsat)) 578 this.exceptionVec := source.exceptionVec.getOrElse(0.U.asTypeOf(this.exceptionVec)) 579 this.debug := source.debug 580 this.debugInfo := source.debugInfo 581 } 582 583 def asIntRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 584 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(IntData()).addrWidth))) 585 rfWrite.wen := this.rfWen && fire 586 rfWrite.addr := this.pdest 587 rfWrite.data := this.data 588 rfWrite.intWen := this.rfWen 589 rfWrite.fpWen := false.B 590 rfWrite.vecWen := false.B 591 rfWrite 592 } 593 594 def asVfRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 595 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(VecData()).addrWidth))) 596 rfWrite.wen := (this.fpWen || this.vecWen) && fire 597 rfWrite.addr := this.pdest 598 rfWrite.data := this.data 599 rfWrite.intWen := false.B 600 rfWrite.fpWen := this.fpWen 601 rfWrite.vecWen := this.vecWen 602 rfWrite 603 } 604 } 605 606 // ExuOutput --> ExuBypassBundle --[DataPath]-->ExuInput 607 // / 608 // [IssueQueue]--> ExuInput -- 609 class ExuBypassBundle( 610 val params: ExeUnitParams, 611 )(implicit 612 val p: Parameters 613 ) extends Bundle { 614 val data = UInt(params.dataBitsMax.W) 615 val pdest = UInt(params.wbPregIdxWidth.W) 616 } 617 618 class ExceptionInfo extends Bundle { 619 val pc = UInt(VAddrData().dataWidth.W) 620 val instr = UInt(32.W) 621 val commitType = CommitType() 622 val exceptionVec = ExceptionVec() 623 val singleStep = Bool() 624 val crossPageIPFFix = Bool() 625 val isInterrupt = Bool() 626 } 627 628 object UopIdx { 629 def apply()(implicit p: Parameters): UInt = UInt(log2Up(p(XSCoreParamsKey).MaxUopSize + 1).W) 630 } 631 632 object FuLatency { 633 def apply(): UInt = UInt(width.W) 634 635 def width = 4 // 0~15 // Todo: assosiate it with FuConfig 636 } 637 638 object ExuVec { 639 def apply(exuNum: Int): Vec[Bool] = Vec(exuNum, Bool()) 640 641 def apply()(implicit p: Parameters): Vec[Bool] = Vec(width, Bool()) 642 643 def width(implicit p: Parameters): Int = p(XSCoreParamsKey).backendParams.numExu 644 } 645 646 class MemExuInput(isVector: Boolean = false)(implicit p: Parameters) extends XSBundle { 647 val uop = new DynInst 648 val src = if (isVector) Vec(5, UInt(VLEN.W)) else Vec(3, UInt(XLEN.W)) 649 val iqIdx = UInt(log2Up(MemIQSizeMax).W) 650 val isFirstIssue = Bool() 651 val deqPortIdx = UInt(log2Ceil(LoadPipelineWidth).W) 652 } 653 654 class MemExuOutput(isVector: Boolean = false)(implicit p: Parameters) extends XSBundle { 655 val uop = new DynInst 656 val data = if (isVector) UInt(VLEN.W) else UInt(XLEN.W) 657 val debug = new DebugBundle 658 } 659 660 class MemMicroOpRbExt(implicit p: Parameters) extends XSBundle { 661 val uop = new DynInst 662 val flag = UInt(1.W) 663 } 664 665 object LoadShouldCancel { 666 def apply(loadDependency: Option[Seq[UInt]], ldCancel: Seq[LoadCancelIO]): Bool = { 667 val ld1Cancel = loadDependency.map(deps => 668 deps.zipWithIndex.map { case (dep, ldPortIdx) => 669 ldCancel.map(_.ld1Cancel).map(cancel => cancel.fire && dep(1) && cancel.bits === ldPortIdx.U).reduce(_ || _) 670 }.reduce(_ || _) 671 ) 672 val ld2Cancel = loadDependency.map(deps => 673 deps.zipWithIndex.map { case (dep, ldPortIdx) => 674 ldCancel.map(_.ld2Cancel).map(cancel => cancel.fire && dep(2) && cancel.bits === ldPortIdx.U).reduce(_ || _) 675 }.reduce(_ || _) 676 ) 677 ld1Cancel.map(_ || ld2Cancel.get).getOrElse(false.B) 678 } 679 } 680} 681