1package xiangshan.backend 2 3import org.chipsalliance.cde.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, SchedulerType} 19import xiangshan.backend.issue.EntryBundles._ 20import xiangshan.backend.regfile.{RfReadPortWithConfig, RfWritePortWithConfig} 21import xiangshan.backend.rob.RobPtr 22import xiangshan.frontend._ 23import xiangshan.mem.{LqPtr, SqPtr} 24import yunsuan.vector.VIFuParam 25import xiangshan.backend.trace._ 26import utility._ 27 28object Bundles { 29 /** 30 * Connect Same Name Port like bundleSource := bundleSinkBudle. 31 * 32 * There is no limit to the number of ports on both sides. 33 * 34 * Don't forget to connect the remaining ports! 35 */ 36 def connectSamePort (bundleSource: Bundle, bundleSink: Bundle):Unit = { 37 bundleSource.elements.foreach { case (name, data) => 38 if (bundleSink.elements.contains(name)) 39 data := bundleSink.elements(name) 40 } 41 } 42 // frontend -> backend 43 class StaticInst(implicit p: Parameters) extends XSBundle { 44 val instr = UInt(32.W) 45 val pc = UInt(VAddrBits.W) 46 val foldpc = UInt(MemPredPCWidth.W) 47 val exceptionVec = ExceptionVec() 48 val isFetchMalAddr = Bool() 49 val trigger = TriggerAction() 50 val preDecodeInfo = new PreDecodeInfo 51 val pred_taken = Bool() 52 val crossPageIPFFix = Bool() 53 val ftqPtr = new FtqPtr 54 val ftqOffset = UInt(log2Up(PredictWidth).W) 55 val isLastInFtqEntry = Bool() 56 57 def connectCtrlFlow(source: CtrlFlow): Unit = { 58 this.instr := source.instr 59 this.pc := source.pc 60 this.foldpc := source.foldpc 61 this.exceptionVec := source.exceptionVec 62 this.isFetchMalAddr := source.backendException 63 this.trigger := source.trigger 64 this.preDecodeInfo := source.pd 65 this.pred_taken := source.pred_taken 66 this.crossPageIPFFix := source.crossPageIPFFix 67 this.ftqPtr := source.ftqPtr 68 this.ftqOffset := source.ftqOffset 69 this.isLastInFtqEntry := source.isLastInFtqEntry 70 } 71 } 72 73 // StaticInst --[Decode]--> DecodedInst 74 class DecodedInst(implicit p: Parameters) extends XSBundle { 75 def numSrc = backendParams.numSrc 76 // passed from StaticInst 77 val instr = UInt(32.W) 78 val pc = UInt(VAddrBits.W) 79 val foldpc = UInt(MemPredPCWidth.W) 80 val exceptionVec = ExceptionVec() 81 val isFetchMalAddr = Bool() 82 val trigger = TriggerAction() 83 val preDecodeInfo = new PreDecodeInfo 84 val pred_taken = Bool() 85 val crossPageIPFFix = Bool() 86 val ftqPtr = new FtqPtr 87 val ftqOffset = UInt(log2Up(PredictWidth).W) 88 // decoded 89 val srcType = Vec(numSrc, SrcType()) 90 val lsrc = Vec(numSrc, UInt(LogicRegsWidth.W)) 91 val ldest = UInt(LogicRegsWidth.W) 92 val fuType = FuType() 93 val fuOpType = FuOpType() 94 val rfWen = Bool() 95 val fpWen = Bool() 96 val vecWen = Bool() 97 val v0Wen = Bool() 98 val vlWen = Bool() 99 val isXSTrap = Bool() 100 val waitForward = Bool() // no speculate execution 101 val blockBackward = Bool() 102 val flushPipe = Bool() // This inst will flush all the pipe when commit, like exception but can commit 103 val canRobCompress = Bool() 104 val selImm = SelImm() 105 val imm = UInt(ImmUnion.maxLen.W) 106 val fpu = new FPUCtrlSignals 107 val vpu = new VPUCtrlSignals 108 val vlsInstr = Bool() 109 val wfflags = Bool() 110 val isMove = Bool() 111 val uopIdx = UopIdx() 112 val uopSplitType = UopSplitType() 113 val isVset = Bool() 114 val firstUop = Bool() 115 val lastUop = Bool() 116 val numUops = UInt(log2Up(MaxUopSize).W) // rob need this 117 val numWB = UInt(log2Up(MaxUopSize).W) // rob need this 118 val commitType = CommitType() // Todo: remove it 119 val needFrm = new NeedFrmBundle 120 121 val debug_fuType = OptionWrapper(backendParams.debugEn, FuType()) 122 123 private def allSignals = srcType.take(3) ++ Seq(fuType, fuOpType, rfWen, fpWen, vecWen, 124 isXSTrap, waitForward, blockBackward, flushPipe, canRobCompress, uopSplitType, selImm) 125 126 def decode(inst: UInt, table: Iterable[(BitPat, List[BitPat])]): DecodedInst = { 127 val decoder: Seq[UInt] = ListLookup( 128 inst, XDecode.decodeDefault.map(bitPatToUInt), 129 table.map{ case (pat, pats) => (pat, pats.map(bitPatToUInt)) }.toArray 130 ) 131 allSignals zip decoder foreach { case (s, d) => s := d } 132 debug_fuType.foreach(_ := fuType) 133 this 134 } 135 136 def isSoftPrefetch: Bool = { 137 fuType === FuType.alu.U && fuOpType === ALUOpType.or && selImm === SelImm.IMM_I && ldest === 0.U 138 } 139 140 def connectStaticInst(source: StaticInst): Unit = { 141 for ((name, data) <- this.elements) { 142 if (source.elements.contains(name)) { 143 data := source.elements(name) 144 } 145 } 146 } 147 } 148 149 class TrapInstInfo(implicit p: Parameters) extends XSBundle { 150 val instr = UInt(32.W) 151 val ftqPtr = new FtqPtr 152 val ftqOffset = UInt(log2Up(PredictWidth).W) 153 154 def needFlush(ftqPtr: FtqPtr, ftqOffset: UInt): Bool ={ 155 val sameFlush = this.ftqPtr === ftqPtr && this.ftqOffset > ftqOffset 156 sameFlush || isAfter(this.ftqPtr, ftqPtr) 157 } 158 159 def fromDecodedInst(decodedInst: DecodedInst): this.type = { 160 this.instr := decodedInst.instr 161 this.ftqPtr := decodedInst.ftqPtr 162 this.ftqOffset := decodedInst.ftqOffset 163 this 164 } 165 } 166 167 // DecodedInst --[Rename]--> DynInst 168 class DynInst(implicit p: Parameters) extends XSBundle { 169 def numSrc = backendParams.numSrc 170 // passed from StaticInst 171 val instr = UInt(32.W) 172 val pc = UInt(VAddrBits.W) 173 val foldpc = UInt(MemPredPCWidth.W) 174 val exceptionVec = ExceptionVec() 175 val isFetchMalAddr = Bool() 176 val hasException = Bool() 177 val trigger = TriggerAction() 178 val preDecodeInfo = new PreDecodeInfo 179 val pred_taken = Bool() 180 val crossPageIPFFix = Bool() 181 val ftqPtr = new FtqPtr 182 val ftqOffset = UInt(log2Up(PredictWidth).W) 183 // passed from DecodedInst 184 val srcType = Vec(numSrc, SrcType()) 185 val ldest = UInt(LogicRegsWidth.W) 186 val fuType = FuType() 187 val fuOpType = FuOpType() 188 val rfWen = Bool() 189 val fpWen = Bool() 190 val vecWen = Bool() 191 val v0Wen = Bool() 192 val vlWen = Bool() 193 val isXSTrap = Bool() 194 val waitForward = Bool() // no speculate execution 195 val blockBackward = Bool() 196 val flushPipe = Bool() // This inst will flush all the pipe when commit, like exception but can commit 197 val canRobCompress = Bool() 198 val selImm = SelImm() 199 val imm = UInt(32.W) 200 val fpu = new FPUCtrlSignals 201 val vpu = new VPUCtrlSignals 202 val vlsInstr = Bool() 203 val wfflags = Bool() 204 val isMove = Bool() 205 val uopIdx = UopIdx() 206 val isVset = Bool() 207 val firstUop = Bool() 208 val lastUop = Bool() 209 val numUops = UInt(log2Up(MaxUopSize).W) // rob need this 210 val numWB = UInt(log2Up(MaxUopSize).W) // rob need this 211 val commitType = CommitType() 212 // rename 213 val srcState = Vec(numSrc, SrcState()) 214 val srcLoadDependency = Vec(numSrc, Vec(LoadPipelineWidth, UInt(LoadDependencyWidth.W))) 215 val psrc = Vec(numSrc, UInt(PhyRegIdxWidth.W)) 216 val pdest = UInt(PhyRegIdxWidth.W) 217 // reg cache 218 val useRegCache = Vec(backendParams.numIntRegSrc, Bool()) 219 val regCacheIdx = Vec(backendParams.numIntRegSrc, UInt(RegCacheIdxWidth.W)) 220 val robIdx = new RobPtr 221 val instrSize = UInt(log2Ceil(RenameWidth + 1).W) 222 val dirtyFs = Bool() 223 val dirtyVs = Bool() 224 val traceBlockInPipe = new TracePipe(IretireWidthInPipe) 225 226 val eliminatedMove = Bool() 227 // Take snapshot at this CFI inst 228 val snapshot = Bool() 229 val debugInfo = new PerfDebugInfo 230 val storeSetHit = Bool() // inst has been allocated an store set 231 val waitForRobIdx = new RobPtr // store set predicted previous store robIdx 232 // Load wait is needed 233 // load inst will not be executed until former store (predicted by mdp) addr calcuated 234 val loadWaitBit = Bool() 235 // If (loadWaitBit && loadWaitStrict), strict load wait is needed 236 // load inst will not be executed until ALL former store addr calcuated 237 val loadWaitStrict = Bool() 238 val ssid = UInt(SSIDWidth.W) 239 // Todo 240 val lqIdx = new LqPtr 241 val sqIdx = new SqPtr 242 // debug module 243 val singleStep = Bool() 244 // schedule 245 val replayInst = Bool() 246 247 val debug_fuType = OptionWrapper(backendParams.debugEn, FuType()) 248 249 val numLsElem = NumLsElem() 250 251 def getDebugFuType: UInt = debug_fuType.getOrElse(fuType) 252 253 def isLUI: Bool = this.fuType === FuType.alu.U && (this.selImm === SelImm.IMM_U || this.selImm === SelImm.IMM_LUI32) 254 def isLUI32: Bool = this.selImm === SelImm.IMM_LUI32 255 def isWFI: Bool = this.fuType === FuType.csr.U && fuOpType === CSROpType.wfi 256 257 def isSvinvalBegin(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.nofence && !flush 258 def isSvinval(flush: Bool) = FuType.isFence(fuType) && 259 Cat(Seq(FenceOpType.sfence, FenceOpType.hfence_v, FenceOpType.hfence_g).map(_ === fuOpType)).orR && !flush 260 def isSvinvalEnd(flush: Bool) = FuType.isFence(fuType) && fuOpType === FenceOpType.nofence && flush 261 def isNotSvinval = !FuType.isFence(fuType) 262 263 def isHls: Bool = { 264 fuType === FuType.ldu.U && LSUOpType.isHlv(fuOpType) || fuType === FuType.stu.U && LSUOpType.isHsv(fuOpType) 265 } 266 267 def isAMOCAS: Bool = FuType.isAMO(fuType) && LSUOpType.isAMOCAS(fuOpType) 268 269 def srcIsReady: Vec[Bool] = { 270 VecInit(this.srcType.zip(this.srcState).map { 271 case (t, s) => SrcType.isNotReg(t) || SrcState.isReady(s) 272 }) 273 } 274 275 def clearExceptions( 276 exceptionBits: Seq[Int] = Seq(), 277 flushPipe : Boolean = false, 278 replayInst : Boolean = false 279 ): DynInst = { 280 this.exceptionVec.zipWithIndex.filterNot(x => exceptionBits.contains(x._2)).foreach(_._1 := false.B) 281 if (!flushPipe) { this.flushPipe := false.B } 282 if (!replayInst) { this.replayInst := false.B } 283 this 284 } 285 286 def needWriteRf: Bool = rfWen || fpWen || vecWen || v0Wen || vlWen 287 } 288 289 trait BundleSource { 290 var wakeupSource = "undefined" 291 var idx = 0 292 } 293 294 /** 295 * 296 * @param pregIdxWidth index width of preg 297 * @param exuIndices exu indices of wakeup bundle 298 */ 299 sealed abstract class IssueQueueWakeUpBaseBundle(pregIdxWidth: Int, val exuIndices: Seq[Int])(implicit p: Parameters) extends XSBundle { 300 val rfWen = Bool() 301 val fpWen = Bool() 302 val vecWen = Bool() 303 val v0Wen = Bool() 304 val vlWen = Bool() 305 val pdest = UInt(pregIdxWidth.W) 306 307 /** 308 * @param successor Seq[(psrc, srcType)] 309 * @return Seq[if wakeup psrc] 310 */ 311 def wakeUp(successor: Seq[(UInt, UInt)], valid: Bool): Seq[Bool] = { 312 successor.map { case (thatPsrc, srcType) => 313 val pdestMatch = pdest === thatPsrc 314 pdestMatch && ( 315 SrcType.isFp(srcType) && this.fpWen || 316 SrcType.isXp(srcType) && this.rfWen || 317 SrcType.isVp(srcType) && this.vecWen 318 ) && valid 319 } 320 } 321 def wakeUpV0(successor: (UInt, UInt), valid: Bool): Bool = { 322 val (thatPsrc, srcType) = successor 323 val pdestMatch = pdest === thatPsrc 324 pdestMatch && ( 325 SrcType.isV0(srcType) && this.v0Wen 326 ) && valid 327 } 328 def wakeUpVl(successor: (UInt, UInt), valid: Bool): Bool = { 329 val (thatPsrc, srcType) = successor 330 val pdestMatch = pdest === thatPsrc 331 pdestMatch && ( 332 SrcType.isVp(srcType) && this.vlWen 333 ) && valid 334 } 335 def wakeUpFromIQ(successor: Seq[(UInt, UInt)]): Seq[Bool] = { 336 successor.map { case (thatPsrc, srcType) => 337 val pdestMatch = pdest === thatPsrc 338 pdestMatch && ( 339 SrcType.isFp(srcType) && this.fpWen || 340 SrcType.isXp(srcType) && this.rfWen || 341 SrcType.isVp(srcType) && this.vecWen 342 ) 343 } 344 } 345 def wakeUpV0FromIQ(successor: (UInt, UInt)): Bool = { 346 val (thatPsrc, srcType) = successor 347 val pdestMatch = pdest === thatPsrc 348 pdestMatch && ( 349 SrcType.isV0(srcType) && this.v0Wen 350 ) 351 } 352 def wakeUpVlFromIQ(successor: (UInt, UInt)): Bool = { 353 val (thatPsrc, srcType) = successor 354 val pdestMatch = pdest === thatPsrc 355 pdestMatch && ( 356 SrcType.isVp(srcType) && this.vlWen 357 ) 358 } 359 360 def hasOnlyOneSource: Boolean = exuIndices.size == 1 361 362 def hasMultiSources: Boolean = exuIndices.size > 1 363 364 def isWBWakeUp = this.isInstanceOf[IssueQueueWBWakeUpBundle] 365 366 def isIQWakeUp = this.isInstanceOf[IssueQueueIQWakeUpBundle] 367 368 def exuIdx: Int = { 369 require(hasOnlyOneSource) 370 this.exuIndices.head 371 } 372 } 373 374 class IssueQueueWBWakeUpBundle(exuIndices: Seq[Int], backendParams: BackendParams)(implicit p: Parameters) extends IssueQueueWakeUpBaseBundle(backendParams.pregIdxWidth, exuIndices) { 375 376 } 377 378 class IssueQueueIQWakeUpBundle( 379 exuIdx: Int, 380 backendParams: BackendParams, 381 copyWakeupOut: Boolean = false, 382 copyNum: Int = 0 383 )(implicit p: Parameters) extends IssueQueueWakeUpBaseBundle(backendParams.pregIdxWidth, Seq(exuIdx)) { 384 val loadDependency = Vec(LoadPipelineWidth, UInt(LoadDependencyWidth.W)) 385 val is0Lat = Bool() 386 val params = backendParams.allExuParams.filter(_.exuIdx == exuIdx).head 387 val rcDest = OptionWrapper(params.needWriteRegCache, UInt(RegCacheIdxWidth.W)) 388 val pdestCopy = OptionWrapper(copyWakeupOut, Vec(copyNum, UInt(params.wbPregIdxWidth.W))) 389 val rfWenCopy = OptionWrapper(copyWakeupOut && params.needIntWen, Vec(copyNum, Bool())) 390 val fpWenCopy = OptionWrapper(copyWakeupOut && params.needFpWen, Vec(copyNum, Bool())) 391 val vecWenCopy = OptionWrapper(copyWakeupOut && params.needVecWen, Vec(copyNum, Bool())) 392 val v0WenCopy = OptionWrapper(copyWakeupOut && params.needV0Wen, Vec(copyNum, Bool())) 393 val vlWenCopy = OptionWrapper(copyWakeupOut && params.needVlWen, Vec(copyNum, Bool())) 394 val loadDependencyCopy = OptionWrapper(copyWakeupOut && params.isIQWakeUpSink, Vec(copyNum, Vec(LoadPipelineWidth, UInt(LoadDependencyWidth.W)))) 395 396 def fromExuInput(exuInput: ExuInput): Unit = { 397 this.rfWen := exuInput.rfWen.getOrElse(false.B) 398 this.fpWen := exuInput.fpWen.getOrElse(false.B) 399 this.vecWen := exuInput.vecWen.getOrElse(false.B) 400 this.v0Wen := exuInput.v0Wen.getOrElse(false.B) 401 this.vlWen := exuInput.vlWen.getOrElse(false.B) 402 this.pdest := exuInput.pdest 403 } 404 } 405 406 class VPUCtrlSignals(implicit p: Parameters) extends XSBundle { 407 // vtype 408 val vill = Bool() 409 val vma = Bool() // 1: agnostic, 0: undisturbed 410 val vta = Bool() // 1: agnostic, 0: undisturbed 411 val vsew = VSew() 412 val vlmul = VLmul() // 1/8~8 --> -3~3 413 414 // spec vtype 415 val specVill = Bool() 416 val specVma = Bool() // 1: agnostic, 0: undisturbed 417 val specVta = Bool() // 1: agnostic, 0: undisturbed 418 val specVsew = VSew() 419 val specVlmul = VLmul() // 1/8~8 --> -3~3 420 421 val vm = Bool() // 0: need v0.t 422 val vstart = Vl() 423 424 // float rounding mode 425 val frm = Frm() 426 // scalar float instr and vector float reduction 427 val fpu = Fpu() 428 // vector fix int rounding mode 429 val vxrm = Vxrm() 430 // vector uop index, exclude other non-vector uop 431 val vuopIdx = UopIdx() 432 val lastUop = Bool() 433 // maybe used if data dependancy 434 val vmask = UInt(V0Data().dataWidth.W) 435 val vl = Vl() 436 437 // vector load/store 438 val nf = Nf() 439 val veew = VEew() 440 441 val isReverse = Bool() // vrsub, vrdiv 442 val isExt = Bool() 443 val isNarrow = Bool() 444 val isDstMask = Bool() // vvm, vvvm, mmm 445 val isOpMask = Bool() // vmand, vmnand 446 val isMove = Bool() // vmv.s.x, vmv.v.v, vmv.v.x, vmv.v.i 447 448 val isDependOldVd = Bool() // some instruction's computation depends on oldvd 449 val isWritePartVd = Bool() // some instruction's computation writes part of vd, such as vredsum 450 451 val isVleff = Bool() // vleff 452 453 def vtype: VType = { 454 val res = Wire(VType()) 455 res.illegal := this.vill 456 res.vma := this.vma 457 res.vta := this.vta 458 res.vsew := this.vsew 459 res.vlmul := this.vlmul 460 res 461 } 462 463 def specVType: VType = { 464 val res = Wire(VType()) 465 res.illegal := this.specVill 466 res.vma := this.specVma 467 res.vta := this.specVta 468 res.vsew := this.specVsew 469 res.vlmul := this.specVlmul 470 res 471 } 472 473 def vconfig: VConfig = { 474 val res = Wire(VConfig()) 475 res.vtype := this.vtype 476 res.vl := this.vl 477 res 478 } 479 480 def connectVType(source: VType): Unit = { 481 this.vill := source.illegal 482 this.vma := source.vma 483 this.vta := source.vta 484 this.vsew := source.vsew 485 this.vlmul := source.vlmul 486 } 487 } 488 489 class NeedFrmBundle(implicit p: Parameters) extends XSBundle { 490 val scalaNeedFrm = Bool() 491 val vectorNeedFrm = Bool() 492 } 493 494 // DynInst --[IssueQueue]--> DataPath 495 class IssueQueueIssueBundle( 496 iqParams: IssueBlockParams, 497 val exuParams: ExeUnitParams, 498 )(implicit 499 p: Parameters 500 ) extends XSBundle { 501 private val rfReadDataCfgSet: Seq[Set[DataConfig]] = exuParams.getRfReadDataCfgSet 502 503 val rf: MixedVec[MixedVec[RfReadPortWithConfig]] = Flipped(MixedVec( 504 rfReadDataCfgSet.map((set: Set[DataConfig]) => 505 MixedVec(set.map((x: DataConfig) => new RfReadPortWithConfig(x, exuParams.rdPregIdxWidth)).toSeq) 506 ) 507 )) 508 509 val srcType = Vec(exuParams.numRegSrc, SrcType()) // used to select imm or reg data 510 val rcIdx = OptionWrapper(exuParams.needReadRegCache, Vec(exuParams.numRegSrc, UInt(RegCacheIdxWidth.W))) // used to select regcache data 511 val immType = SelImm() // used to select imm extractor 512 val common = new ExuInput(exuParams) 513 val addrOH = UInt(iqParams.numEntries.W) 514 515 def exuIdx = exuParams.exuIdx 516 def getSource: SchedulerType = exuParams.getWBSource 517 518 def getRfReadValidBundle(issueValid: Bool): Seq[ValidIO[RfReadPortWithConfig]] = { 519 rf.zip(srcType).map { 520 case (rfRd: MixedVec[RfReadPortWithConfig], t: UInt) => 521 makeValid(issueValid, rfRd.head) 522 }.toSeq 523 } 524 } 525 526 class OGRespBundle(implicit p:Parameters, params: IssueBlockParams) extends XSBundle { 527 val issueQueueParams = this.params 528 val og0resp = Valid(new EntryDeqRespBundle) 529 val og1resp = Valid(new EntryDeqRespBundle) 530 } 531 532 class WbFuBusyTableWriteBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 533 private val intCertainLat = params.intLatencyCertain 534 private val fpCertainLat = params.fpLatencyCertain 535 private val vfCertainLat = params.vfLatencyCertain 536 private val v0CertainLat = params.v0LatencyCertain 537 private val vlCertainLat = params.vlLatencyCertain 538 private val intLat = params.intLatencyValMax 539 private val fpLat = params.fpLatencyValMax 540 private val vfLat = params.vfLatencyValMax 541 private val v0Lat = params.v0LatencyValMax 542 private val vlLat = params.vlLatencyValMax 543 544 val intWbBusyTable = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 545 val fpWbBusyTable = OptionWrapper(fpCertainLat, UInt((fpLat + 1).W)) 546 val vfWbBusyTable = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 547 val v0WbBusyTable = OptionWrapper(v0CertainLat, UInt((v0Lat + 1).W)) 548 val vlWbBusyTable = OptionWrapper(vlCertainLat, UInt((vlLat + 1).W)) 549 val intDeqRespSet = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 550 val fpDeqRespSet = OptionWrapper(fpCertainLat, UInt((fpLat + 1).W)) 551 val vfDeqRespSet = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 552 val v0DeqRespSet = OptionWrapper(v0CertainLat, UInt((v0Lat + 1).W)) 553 val vlDeqRespSet = OptionWrapper(vlCertainLat, UInt((vlLat + 1).W)) 554 } 555 556 class WbFuBusyTableReadBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 557 private val intCertainLat = params.intLatencyCertain 558 private val fpCertainLat = params.fpLatencyCertain 559 private val vfCertainLat = params.vfLatencyCertain 560 private val v0CertainLat = params.v0LatencyCertain 561 private val vlCertainLat = params.vlLatencyCertain 562 private val intLat = params.intLatencyValMax 563 private val fpLat = params.fpLatencyValMax 564 private val vfLat = params.vfLatencyValMax 565 private val v0Lat = params.v0LatencyValMax 566 private val vlLat = params.vlLatencyValMax 567 568 val intWbBusyTable = OptionWrapper(intCertainLat, UInt((intLat + 1).W)) 569 val fpWbBusyTable = OptionWrapper(fpCertainLat, UInt((fpLat + 1).W)) 570 val vfWbBusyTable = OptionWrapper(vfCertainLat, UInt((vfLat + 1).W)) 571 val v0WbBusyTable = OptionWrapper(v0CertainLat, UInt((v0Lat + 1).W)) 572 val vlWbBusyTable = OptionWrapper(vlCertainLat, UInt((vlLat + 1).W)) 573 } 574 575 class WbConflictBundle(val params: ExeUnitParams)(implicit p: Parameters) extends XSBundle { 576 private val intCertainLat = params.intLatencyCertain 577 private val fpCertainLat = params.fpLatencyCertain 578 private val vfCertainLat = params.vfLatencyCertain 579 private val v0CertainLat = params.v0LatencyCertain 580 private val vlCertainLat = params.vlLatencyCertain 581 582 val intConflict = OptionWrapper(intCertainLat, Bool()) 583 val fpConflict = OptionWrapper(fpCertainLat, Bool()) 584 val vfConflict = OptionWrapper(vfCertainLat, Bool()) 585 val v0Conflict = OptionWrapper(v0CertainLat, Bool()) 586 val vlConflict = OptionWrapper(vlCertainLat, Bool()) 587 } 588 589 class ImmInfo extends Bundle { 590 val imm = UInt(32.W) 591 val immType = SelImm() 592 } 593 594 // DataPath --[ExuInput]--> Exu 595 class ExuInput(val params: ExeUnitParams, copyWakeupOut:Boolean = false, copyNum:Int = 0)(implicit p: Parameters) extends XSBundle { 596 val fuType = FuType() 597 val fuOpType = FuOpType() 598 val src = Vec(params.numRegSrc, UInt(params.srcDataBitsMax.W)) 599 val imm = UInt(64.W) 600 val nextPcOffset = OptionWrapper(params.hasBrhFu, UInt((log2Up(PredictWidth) + 1).W)) 601 val robIdx = new RobPtr 602 val iqIdx = UInt(log2Up(MemIQSizeMax).W)// Only used by store yet 603 val isFirstIssue = Bool() // Only used by store yet 604 val pdestCopy = OptionWrapper(copyWakeupOut, Vec(copyNum, UInt(params.wbPregIdxWidth.W))) 605 val rfWenCopy = OptionWrapper(copyWakeupOut && params.needIntWen, Vec(copyNum, Bool())) 606 val fpWenCopy = OptionWrapper(copyWakeupOut && params.needFpWen, Vec(copyNum, Bool())) 607 val vecWenCopy = OptionWrapper(copyWakeupOut && params.needVecWen, Vec(copyNum, Bool())) 608 val v0WenCopy = OptionWrapper(copyWakeupOut && params.needV0Wen, Vec(copyNum, Bool())) 609 val vlWenCopy = OptionWrapper(copyWakeupOut && params.needVlWen, Vec(copyNum, Bool())) 610 val loadDependencyCopy = OptionWrapper(copyWakeupOut && params.isIQWakeUpSink, Vec(copyNum, Vec(LoadPipelineWidth, UInt(LoadDependencyWidth.W)))) 611 val pdest = UInt(params.wbPregIdxWidth.W) 612 val rfWen = if (params.needIntWen) Some(Bool()) else None 613 val fpWen = if (params.needFpWen) Some(Bool()) else None 614 val vecWen = if (params.needVecWen) Some(Bool()) else None 615 val v0Wen = if (params.needV0Wen) Some(Bool()) else None 616 val vlWen = if (params.needVlWen) Some(Bool()) else None 617 val fpu = if (params.writeFflags) Some(new FPUCtrlSignals) else None 618 val vpu = if (params.needVPUCtrl) Some(new VPUCtrlSignals) else None 619 val flushPipe = if (params.flushPipe) Some(Bool()) else None 620 val pc = if (params.needPc) Some(UInt(VAddrData().dataWidth.W)) else None 621 val preDecode = if (params.hasPredecode) Some(new PreDecodeInfo) else None 622 val ftqIdx = if (params.needPc || params.replayInst || params.hasStoreAddrFu || params.hasCSR) 623 Some(new FtqPtr) else None 624 val ftqOffset = if (params.needPc || params.replayInst || params.hasStoreAddrFu || params.hasCSR) 625 Some(UInt(log2Up(PredictWidth).W)) else None 626 val predictInfo = if (params.needPdInfo) Some(new Bundle { 627 val target = UInt(VAddrData().dataWidth.W) 628 val taken = Bool() 629 }) else None 630 val loadWaitBit = OptionWrapper(params.hasLoadExu, Bool()) 631 val waitForRobIdx = OptionWrapper(params.hasLoadExu, new RobPtr) // store set predicted previous store robIdx 632 val storeSetHit = OptionWrapper(params.hasLoadExu, Bool()) // inst has been allocated an store set 633 val loadWaitStrict = OptionWrapper(params.hasLoadExu, Bool()) // load inst will not be executed until ALL former store addr calcuated 634 val ssid = OptionWrapper(params.hasLoadExu, UInt(SSIDWidth.W)) 635 // only vector load store need 636 val numLsElem = OptionWrapper(params.hasVecLsFu, NumLsElem()) 637 638 val sqIdx = if (params.hasMemAddrFu || params.hasStdFu) Some(new SqPtr) else None 639 val lqIdx = if (params.hasMemAddrFu) Some(new LqPtr) else None 640 val dataSources = Vec(params.numRegSrc, DataSource()) 641 val exuSources = OptionWrapper(params.isIQWakeUpSink, Vec(params.numRegSrc, ExuSource(params))) 642 val srcTimer = OptionWrapper(params.isIQWakeUpSink, Vec(params.numRegSrc, UInt(3.W))) 643 val loadDependency = OptionWrapper(params.needLoadDependency, Vec(LoadPipelineWidth, UInt(LoadDependencyWidth.W))) 644 645 val perfDebugInfo = new PerfDebugInfo() 646 647 def exuIdx = this.params.exuIdx 648 649 def fromIssueBundle(source: IssueQueueIssueBundle): Unit = { 650 // src is assigned to rfReadData 651 this.fuType := source.common.fuType 652 this.fuOpType := source.common.fuOpType 653 this.imm := source.common.imm 654 this.robIdx := source.common.robIdx 655 this.pdest := source.common.pdest 656 this.isFirstIssue := source.common.isFirstIssue // Only used by mem debug log 657 this.iqIdx := source.common.iqIdx // Only used by mem feedback 658 this.dataSources := source.common.dataSources 659 this.exuSources .foreach(_ := source.common.exuSources.get) 660 this.rfWen .foreach(_ := source.common.rfWen.get) 661 this.fpWen .foreach(_ := source.common.fpWen.get) 662 this.vecWen .foreach(_ := source.common.vecWen.get) 663 this.v0Wen .foreach(_ := source.common.v0Wen.get) 664 this.vlWen .foreach(_ := source.common.vlWen.get) 665 this.fpu .foreach(_ := source.common.fpu.get) 666 this.vpu .foreach(_ := source.common.vpu.get) 667 this.flushPipe .foreach(_ := source.common.flushPipe.get) 668 this.pc .foreach(_ := source.common.pc.get) 669 this.preDecode .foreach(_ := source.common.preDecode.get) 670 this.nextPcOffset .foreach(_ := source.common.nextPcOffset.get) 671 this.ftqIdx .foreach(_ := source.common.ftqIdx.get) 672 this.ftqOffset .foreach(_ := source.common.ftqOffset.get) 673 this.predictInfo .foreach(_ := source.common.predictInfo.get) 674 this.loadWaitBit .foreach(_ := source.common.loadWaitBit.get) 675 this.waitForRobIdx .foreach(_ := source.common.waitForRobIdx.get) 676 this.storeSetHit .foreach(_ := source.common.storeSetHit.get) 677 this.loadWaitStrict.foreach(_ := source.common.loadWaitStrict.get) 678 this.ssid .foreach(_ := source.common.ssid.get) 679 this.lqIdx .foreach(_ := source.common.lqIdx.get) 680 this.sqIdx .foreach(_ := source.common.sqIdx.get) 681 this.numLsElem .foreach(_ := source.common.numLsElem.get) 682 this.srcTimer .foreach(_ := source.common.srcTimer.get) 683 this.loadDependency.foreach(_ := source.common.loadDependency.get.map(_ << 1)) 684 } 685 } 686 687 // ExuInput --[FuncUnit]--> ExuOutput 688 class ExuOutput( 689 val params: ExeUnitParams, 690 )(implicit 691 val p: Parameters 692 ) extends Bundle with BundleSource with HasXSParameter { 693 val data = Vec(params.wbPathNum, UInt(params.destDataBitsMax.W)) 694 val pdest = UInt(params.wbPregIdxWidth.W) 695 val robIdx = new RobPtr 696 val intWen = if (params.needIntWen) Some(Bool()) else None 697 val fpWen = if (params.needFpWen) Some(Bool()) else None 698 val vecWen = if (params.needVecWen) Some(Bool()) else None 699 val v0Wen = if (params.needV0Wen) Some(Bool()) else None 700 val vlWen = if (params.needVlWen) Some(Bool()) else None 701 val redirect = if (params.hasRedirect) Some(ValidIO(new Redirect)) else None 702 val fflags = if (params.writeFflags) Some(UInt(5.W)) else None 703 val wflags = if (params.writeFflags) Some(Bool()) else None 704 val vxsat = if (params.writeVxsat) Some(Bool()) else None 705 val exceptionVec = if (params.exceptionOut.nonEmpty) Some(ExceptionVec()) else None 706 val flushPipe = if (params.flushPipe) Some(Bool()) else None 707 val replay = if (params.replayInst) Some(Bool()) else None 708 val lqIdx = if (params.hasLoadFu) Some(new LqPtr()) else None 709 val sqIdx = if (params.hasStoreAddrFu || params.hasStdFu) 710 Some(new SqPtr()) else None 711 val trigger = if (params.trigger) Some(TriggerAction()) else None 712 // uop info 713 val predecodeInfo = if(params.hasPredecode) Some(new PreDecodeInfo) else None 714 // vldu used only 715 val vls = OptionWrapper(params.hasVLoadFu, new Bundle { 716 val vpu = new VPUCtrlSignals 717 val oldVdPsrc = UInt(PhyRegIdxWidth.W) 718 val vdIdx = UInt(3.W) 719 val vdIdxInField = UInt(3.W) 720 val isIndexed = Bool() 721 val isMasked = Bool() 722 val isStrided = Bool() 723 val isWhole = Bool() 724 val isVecLoad = Bool() 725 val isVlm = Bool() 726 }) 727 val debug = new DebugBundle 728 val debugInfo = new PerfDebugInfo 729 } 730 731 // ExuOutput + DynInst --> WriteBackBundle 732 class WriteBackBundle(val params: PregWB, backendParams: BackendParams)(implicit p: Parameters) extends Bundle with BundleSource { 733 val rfWen = Bool() 734 val fpWen = Bool() 735 val vecWen = Bool() 736 val v0Wen = Bool() 737 val vlWen = Bool() 738 val pdest = UInt(params.pregIdxWidth(backendParams).W) 739 val data = UInt(params.dataWidth.W) 740 val robIdx = new RobPtr()(p) 741 val flushPipe = Bool() 742 val replayInst = Bool() 743 val redirect = ValidIO(new Redirect) 744 val fflags = UInt(5.W) 745 val vxsat = Bool() 746 val exceptionVec = ExceptionVec() 747 val debug = new DebugBundle 748 val debugInfo = new PerfDebugInfo 749 750 this.wakeupSource = s"WB(${params.toString})" 751 752 def fromExuOutput(source: ExuOutput, wbType: String) = { 753 val typeMap = Map("int" -> 0, "fp" -> 1, "vf" -> 2, "v0" -> 3, "vl" -> 4) 754 this.rfWen := source.intWen.getOrElse(false.B) 755 this.fpWen := source.fpWen.getOrElse(false.B) 756 this.vecWen := source.vecWen.getOrElse(false.B) 757 this.v0Wen := source.v0Wen.getOrElse(false.B) 758 this.vlWen := source.vlWen.getOrElse(false.B) 759 this.pdest := source.pdest 760 this.data := source.data(source.params.wbIndex(typeMap(wbType))) 761 this.robIdx := source.robIdx 762 this.flushPipe := source.flushPipe.getOrElse(false.B) 763 this.replayInst := source.replay.getOrElse(false.B) 764 this.redirect := source.redirect.getOrElse(0.U.asTypeOf(this.redirect)) 765 this.fflags := source.fflags.getOrElse(0.U.asTypeOf(this.fflags)) 766 this.vxsat := source.vxsat.getOrElse(0.U.asTypeOf(this.vxsat)) 767 this.exceptionVec := source.exceptionVec.getOrElse(0.U.asTypeOf(this.exceptionVec)) 768 this.debug := source.debug 769 this.debugInfo := source.debugInfo 770 } 771 772 def asIntRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 773 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(IntData()).addrWidth))) 774 rfWrite.wen := this.rfWen && fire 775 rfWrite.addr := this.pdest 776 rfWrite.data := this.data 777 rfWrite.intWen := this.rfWen 778 rfWrite.fpWen := false.B 779 rfWrite.vecWen := false.B 780 rfWrite.v0Wen := false.B 781 rfWrite.vlWen := false.B 782 rfWrite 783 } 784 785 def asFpRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 786 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(FpData()).addrWidth))) 787 rfWrite.wen := this.fpWen && fire 788 rfWrite.addr := this.pdest 789 rfWrite.data := this.data 790 rfWrite.intWen := false.B 791 rfWrite.fpWen := this.fpWen 792 rfWrite.vecWen := false.B 793 rfWrite.v0Wen := false.B 794 rfWrite.vlWen := false.B 795 rfWrite 796 } 797 798 def asVfRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 799 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(VecData()).addrWidth))) 800 rfWrite.wen := this.vecWen && fire 801 rfWrite.addr := this.pdest 802 rfWrite.data := this.data 803 rfWrite.intWen := false.B 804 rfWrite.fpWen := false.B 805 rfWrite.vecWen := this.vecWen 806 rfWrite.v0Wen := false.B 807 rfWrite.vlWen := false.B 808 rfWrite 809 } 810 811 def asV0RfWriteBundle(fire: Bool): RfWritePortWithConfig = { 812 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(V0Data()).addrWidth))) 813 rfWrite.wen := this.v0Wen && fire 814 rfWrite.addr := this.pdest 815 rfWrite.data := this.data 816 rfWrite.intWen := false.B 817 rfWrite.fpWen := false.B 818 rfWrite.vecWen := false.B 819 rfWrite.v0Wen := this.v0Wen 820 rfWrite.vlWen := false.B 821 rfWrite 822 } 823 824 def asVlRfWriteBundle(fire: Bool): RfWritePortWithConfig = { 825 val rfWrite = Wire(Output(new RfWritePortWithConfig(this.params.dataCfg, backendParams.getPregParams(VlData()).addrWidth))) 826 rfWrite.wen := this.vlWen && fire 827 rfWrite.addr := this.pdest 828 rfWrite.data := this.data 829 rfWrite.intWen := false.B 830 rfWrite.fpWen := false.B 831 rfWrite.vecWen := false.B 832 rfWrite.v0Wen := false.B 833 rfWrite.vlWen := this.vlWen 834 rfWrite 835 } 836 } 837 838 // ExuOutput --> ExuBypassBundle --[DataPath]-->ExuInput 839 // / 840 // [IssueQueue]--> ExuInput -- 841 class ExuBypassBundle( 842 val params: ExeUnitParams, 843 )(implicit p: Parameters) extends XSBundle { 844 val intWen = Bool() 845 val data = UInt(params.destDataBitsMax.W) 846 val pdest = UInt(params.wbPregIdxWidth.W) 847 } 848 849 class ExceptionInfo(implicit p: Parameters) extends XSBundle { 850 val pc = UInt(VAddrData().dataWidth.W) 851 val instr = UInt(32.W) 852 val commitType = CommitType() 853 val exceptionVec = ExceptionVec() 854 val isPcBkpt = Bool() 855 val isFetchMalAddr = Bool() 856 val gpaddr = UInt(XLEN.W) 857 val singleStep = Bool() 858 val crossPageIPFFix = Bool() 859 val isInterrupt = Bool() 860 val isHls = Bool() 861 val vls = Bool() 862 val trigger = TriggerAction() 863 val isForVSnonLeafPTE = Bool() 864 } 865 866 object UopIdx { 867 def apply()(implicit p: Parameters): UInt = UInt(log2Up(p(XSCoreParamsKey).MaxUopSize + 1).W) 868 } 869 870 object FuLatency { 871 def apply(): UInt = UInt(width.W) 872 873 def width = 4 // 0~15 // Todo: assosiate it with FuConfig 874 } 875 876 class ExuSource(exuNum: Int)(implicit p: Parameters) extends XSBundle { 877 val value = UInt(log2Ceil(exuNum + 1).W) 878 879 val allExuNum = p(XSCoreParamsKey).backendParams.numExu 880 881 def toExuOH(num: Int, filter: Seq[Int]): Vec[Bool] = { 882 require(num == filter.size) 883 val encodedExuOH = UIntToOH(this.value)(num, 1) 884 val ext = Module(new UIntExtractor(allExuNum, filter)) 885 ext.io.in := encodedExuOH 886 VecInit(ext.io.out.asBools.zipWithIndex.map{ case(out, idx) => 887 if (filter.contains(idx)) out 888 else false.B 889 }) 890 } 891 892 def toExuOH(exuParams: ExeUnitParams): Vec[Bool] = { 893 toExuOH(exuParams.numWakeupFromIQ, exuParams.iqWakeUpSinkPairs.map(x => x.source.getExuParam(p(XSCoreParamsKey).backendParams.allExuParams).exuIdx)) 894 } 895 896 def toExuOH(iqParams: IssueBlockParams): Vec[Bool] = { 897 toExuOH(iqParams.numWakeupFromIQ, iqParams.wakeUpSourceExuIdx) 898 } 899 900 def fromExuOH(iqParams: IssueBlockParams, exuOH: UInt): UInt = { 901 val comp = Module(new UIntCompressor(allExuNum, iqParams.wakeUpSourceExuIdx)) 902 comp.io.in := exuOH 903 OHToUInt(Cat(comp.io.out, 0.U(1.W))) 904 } 905 } 906 907 object ExuSource { 908 def apply(exuNum: Int)(implicit p: Parameters) = new ExuSource(exuNum) 909 910 def apply(params: ExeUnitParams)(implicit p: Parameters) = new ExuSource(params.numWakeupFromIQ) 911 912 def apply()(implicit p: Parameters, params: IssueBlockParams) = new ExuSource(params.numWakeupFromIQ) 913 } 914 915 object ExuVec { 916 def apply(exuNum: Int): Vec[Bool] = Vec(exuNum, Bool()) 917 918 def apply()(implicit p: Parameters): Vec[Bool] = Vec(width, Bool()) 919 920 def width(implicit p: Parameters): Int = p(XSCoreParamsKey).backendParams.numExu 921 } 922 923 class CancelSignal(implicit p: Parameters) extends XSBundle { 924 val rfWen = Bool() 925 val fpWen = Bool() 926 val vecWen = Bool() 927 val v0Wen = Bool() 928 val vlWen = Bool() 929 val pdest = UInt(PhyRegIdxWidth.W) 930 } 931 932 class MemExuInput(isVector: Boolean = false)(implicit p: Parameters) extends XSBundle { 933 val uop = new DynInst 934 val src = if (isVector) Vec(5, UInt(VLEN.W)) else Vec(3, UInt(XLEN.W)) 935 val iqIdx = UInt(log2Up(MemIQSizeMax).W) 936 val isFirstIssue = Bool() 937 val flowNum = OptionWrapper(isVector, NumLsElem()) 938 939 def src_rs1 = src(0) 940 def src_rs2 = src(1) 941 def src_stride = src(1) 942 def src_vs3 = src(2) 943 def src_mask = if (isVector) src(3) else 0.U 944 def src_vl = if (isVector) src(4) else 0.U 945 } 946 947 class MemExuOutput(isVector: Boolean = false)(implicit p: Parameters) extends XSBundle { 948 val uop = new DynInst 949 val data = if (isVector) UInt(VLEN.W) else UInt(XLEN.W) 950 val mask = if (isVector) Some(UInt(VLEN.W)) else None 951 val vdIdx = if (isVector) Some(UInt(3.W)) else None // TODO: parameterize width 952 val vdIdxInField = if (isVector) Some(UInt(3.W)) else None 953 val isFromLoadUnit = Bool() 954 val debug = new DebugBundle 955 956 def isVls = FuType.isVls(uop.fuType) 957 } 958 959 class MemMicroOpRbExt(implicit p: Parameters) extends XSBundle { 960 val uop = new DynInst 961 val flag = UInt(1.W) 962 } 963 964 object LoadShouldCancel { 965 def apply(loadDependency: Option[Seq[UInt]], ldCancel: Seq[LoadCancelIO]): Bool = { 966 val ld1Cancel = loadDependency.map(_.zip(ldCancel.map(_.ld1Cancel)).map { case (dep, cancel) => cancel && dep(0)}.reduce(_ || _)) 967 val ld2Cancel = loadDependency.map(_.zip(ldCancel.map(_.ld2Cancel)).map { case (dep, cancel) => cancel && dep(1)}.reduce(_ || _)) 968 ld1Cancel.map(_ || ld2Cancel.get).getOrElse(false.B) 969 } 970 } 971} 972