1/*************************************************************************************** 2* Copyright (c) 2020-2021 Institute of Computing Technology, Chinese Academy of Sciences 3* Copyright (c) 2020-2021 Peng Cheng Laboratory 4* 5* XiangShan is licensed under Mulan PSL v2. 6* You can use this software according to the terms and conditions of the Mulan PSL v2. 7* You may obtain a copy of Mulan PSL v2 at: 8* http://license.coscl.org.cn/MulanPSL2 9* 10* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, 11* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, 12* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. 13* 14* See the Mulan PSL v2 for more details. 15***************************************************************************************/ 16 17package xiangshan.backend 18 19import org.chipsalliance.cde.config.Parameters 20import chisel3._ 21import chisel3.util._ 22import device.MsiInfoBundle 23import freechips.rocketchip.diplomacy.{LazyModule, LazyModuleImp} 24import system.HasSoCParameter 25import utility._ 26import xiangshan._ 27import xiangshan.backend.Bundles.{DynInst, IssueQueueIQWakeUpBundle, LoadShouldCancel, MemExuInput, MemExuOutput, VPUCtrlSignals} 28import xiangshan.backend.ctrlblock.{DebugLSIO, LsTopdownInfo} 29import xiangshan.backend.datapath.DataConfig.{IntData, VecData, FpData} 30import xiangshan.backend.datapath.RdConfig.{IntRD, VfRD} 31import xiangshan.backend.datapath.WbConfig._ 32import xiangshan.backend.datapath.DataConfig._ 33import xiangshan.backend.datapath._ 34import xiangshan.backend.dispatch.CoreDispatchTopDownIO 35import xiangshan.backend.exu.ExuBlock 36import xiangshan.backend.fu.vector.Bundles.{VConfig, VType} 37import xiangshan.backend.fu.{FenceIO, FenceToSbuffer, FuConfig, FuType, PFEvent, PerfCounterIO} 38import xiangshan.backend.issue.EntryBundles._ 39import xiangshan.backend.issue.{CancelNetwork, Scheduler, SchedulerArithImp, SchedulerImpBase, SchedulerMemImp} 40import xiangshan.backend.rob.{RobCoreTopDownIO, RobDebugRollingIO, RobLsqIO, RobPtr} 41import xiangshan.frontend.{FtqPtr, FtqRead, PreDecodeInfo} 42import xiangshan.mem.{LqPtr, LsqEnqIO, SqPtr} 43 44import scala.collection.mutable 45 46class Backend(val params: BackendParams)(implicit p: Parameters) extends LazyModule 47 with HasXSParameter { 48 override def shouldBeInlined: Boolean = false 49 val inner = LazyModule(new BackendInlined(params)) 50 lazy val module = new BackendImp(this) 51} 52 53class BackendImp(wrapper: Backend)(implicit p: Parameters) extends LazyModuleImp(wrapper) { 54 val io = IO(new BackendIO()(p, wrapper.params)) 55 io <> wrapper.inner.module.io 56 if (p(DebugOptionsKey).ResetGen) { 57 ResetGen(ResetGenNode(Seq(ModuleNode(wrapper.inner.module))), reset, sim = false) 58 } 59} 60 61class BackendInlined(val params: BackendParams)(implicit p: Parameters) extends LazyModule 62 with HasXSParameter { 63 64 override def shouldBeInlined: Boolean = true 65 66 // check read & write port config 67 params.configChecks 68 69 /* Only update the idx in mem-scheduler here 70 * Idx in other schedulers can be updated the same way if needed 71 * 72 * Also note that we filter out the 'stData issue-queues' when counting 73 */ 74 for ((ibp, idx) <- params.memSchdParams.get.issueBlockParams.filter(iq => iq.StdCnt == 0).zipWithIndex) { 75 ibp.updateIdx(idx) 76 } 77 78 println(params.iqWakeUpParams) 79 80 for ((schdCfg, i) <- params.allSchdParams.zipWithIndex) { 81 schdCfg.bindBackendParam(params) 82 } 83 84 for ((iqCfg, i) <- params.allIssueParams.zipWithIndex) { 85 iqCfg.bindBackendParam(params) 86 } 87 88 for ((exuCfg, i) <- params.allExuParams.zipWithIndex) { 89 exuCfg.bindBackendParam(params) 90 exuCfg.updateIQWakeUpConfigs(params.iqWakeUpParams) 91 exuCfg.updateExuIdx(i) 92 } 93 94 println("[Backend] ExuConfigs:") 95 for (exuCfg <- params.allExuParams) { 96 val fuConfigs = exuCfg.fuConfigs 97 val wbPortConfigs = exuCfg.wbPortConfigs 98 val immType = exuCfg.immType 99 100 println("[Backend] " + 101 s"${exuCfg.name}: " + 102 (if (exuCfg.fakeUnit) "fake, " else "") + 103 (if (exuCfg.hasLoadFu || exuCfg.hasHyldaFu) s"LdExuIdx(${backendParams.getLdExuIdx(exuCfg)})" else "") + 104 s"${fuConfigs.map(_.name).mkString("fu(s): {", ",", "}")}, " + 105 s"${wbPortConfigs.mkString("wb: {", ",", "}")}, " + 106 s"${immType.map(SelImm.mkString(_)).mkString("imm: {", ",", "}")}, " + 107 s"latMax(${exuCfg.latencyValMax}), ${exuCfg.fuLatancySet.mkString("lat: {", ",", "}")}, " + 108 s"srcReg(${exuCfg.numRegSrc})" 109 ) 110 require( 111 wbPortConfigs.collectFirst { case x: IntWB => x }.nonEmpty == 112 fuConfigs.map(_.writeIntRf).reduce(_ || _), 113 s"${exuCfg.name} int wb port has no priority" 114 ) 115 require( 116 wbPortConfigs.collectFirst { case x: FpWB => x }.nonEmpty == 117 fuConfigs.map(x => x.writeFpRf).reduce(_ || _), 118 s"${exuCfg.name} fp wb port has no priority" 119 ) 120 require( 121 wbPortConfigs.collectFirst { case x: VfWB => x }.nonEmpty == 122 fuConfigs.map(x => x.writeVecRf).reduce(_ || _), 123 s"${exuCfg.name} vec wb port has no priority" 124 ) 125 } 126 127 println(s"[Backend] all fu configs") 128 for (cfg <- FuConfig.allConfigs) { 129 println(s"[Backend] $cfg") 130 } 131 132 println(s"[Backend] Int RdConfigs: ExuName(Priority)") 133 for ((port, seq) <- params.getRdPortParams(IntData())) { 134 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 135 } 136 137 println(s"[Backend] Int WbConfigs: ExuName(Priority)") 138 for ((port, seq) <- params.getWbPortParams(IntData())) { 139 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 140 } 141 142 println(s"[Backend] Fp RdConfigs: ExuName(Priority)") 143 for ((port, seq) <- params.getRdPortParams(FpData())) { 144 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 145 } 146 147 println(s"[Backend] Fp WbConfigs: ExuName(Priority)") 148 for ((port, seq) <- params.getWbPortParams(FpData())) { 149 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 150 } 151 152 println(s"[Backend] Vf RdConfigs: ExuName(Priority)") 153 for ((port, seq) <- params.getRdPortParams(VecData())) { 154 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 155 } 156 157 println(s"[Backend] Vf WbConfigs: ExuName(Priority)") 158 for ((port, seq) <- params.getWbPortParams(VecData())) { 159 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 160 } 161 162 println(s"[Backend] Dispatch Configs:") 163 println(s"[Backend] Load IQ enq width(${params.numLoadDp}), Store IQ enq width(${params.numStoreDp})") 164 println(s"[Backend] Load DP width(${LSQLdEnqWidth}), Store DP width(${LSQStEnqWidth})") 165 166 params.updateCopyPdestInfo 167 println(s"[Backend] copyPdestInfo ${params.copyPdestInfo}") 168 params.allExuParams.map(_.copyNum) 169 val ctrlBlock = LazyModule(new CtrlBlock(params)) 170 val pcTargetMem = LazyModule(new PcTargetMem(params)) 171 val intScheduler = params.intSchdParams.map(x => LazyModule(new Scheduler(x))) 172 val fpScheduler = params.fpSchdParams.map(x => LazyModule(new Scheduler(x))) 173 val vfScheduler = params.vfSchdParams.map(x => LazyModule(new Scheduler(x))) 174 val memScheduler = params.memSchdParams.map(x => LazyModule(new Scheduler(x))) 175 val dataPath = LazyModule(new DataPath(params)) 176 val intExuBlock = params.intSchdParams.map(x => LazyModule(new ExuBlock(x))) 177 val fpExuBlock = params.fpSchdParams.map(x => LazyModule(new ExuBlock(x))) 178 val vfExuBlock = params.vfSchdParams.map(x => LazyModule(new ExuBlock(x))) 179 val wbFuBusyTable = LazyModule(new WbFuBusyTable(params)) 180 181 lazy val module = new BackendInlinedImp(this) 182} 183 184class BackendInlinedImp(override val wrapper: BackendInlined)(implicit p: Parameters) extends LazyModuleImp(wrapper) 185 with HasXSParameter 186 with HasPerfEvents { 187 implicit private val params: BackendParams = wrapper.params 188 189 val io = IO(new BackendIO()(p, wrapper.params)) 190 191 private val ctrlBlock = wrapper.ctrlBlock.module 192 private val pcTargetMem = wrapper.pcTargetMem.module 193 private val intScheduler: SchedulerImpBase = wrapper.intScheduler.get.module 194 private val fpScheduler = wrapper.fpScheduler.get.module 195 private val vfScheduler = wrapper.vfScheduler.get.module 196 private val memScheduler = wrapper.memScheduler.get.module 197 private val dataPath = wrapper.dataPath.module 198 private val intExuBlock = wrapper.intExuBlock.get.module 199 private val fpExuBlock = wrapper.fpExuBlock.get.module 200 private val vfExuBlock = wrapper.vfExuBlock.get.module 201 private val og2ForVector = Module(new Og2ForVector(params)) 202 private val bypassNetwork = Module(new BypassNetwork) 203 private val wbDataPath = Module(new WbDataPath(params)) 204 private val wbFuBusyTable = wrapper.wbFuBusyTable.module 205 206 private val iqWakeUpMappedBundle: Map[Int, ValidIO[IssueQueueIQWakeUpBundle]] = ( 207 intScheduler.io.toSchedulers.wakeupVec ++ 208 fpScheduler.io.toSchedulers.wakeupVec ++ 209 vfScheduler.io.toSchedulers.wakeupVec ++ 210 memScheduler.io.toSchedulers.wakeupVec 211 ).map(x => (x.bits.exuIdx, x)).toMap 212 213 println(s"[Backend] iq wake up keys: ${iqWakeUpMappedBundle.keys}") 214 215 wbFuBusyTable.io.in.intSchdBusyTable := intScheduler.io.wbFuBusyTable 216 wbFuBusyTable.io.in.fpSchdBusyTable := fpScheduler.io.wbFuBusyTable 217 wbFuBusyTable.io.in.vfSchdBusyTable := vfScheduler.io.wbFuBusyTable 218 wbFuBusyTable.io.in.memSchdBusyTable := memScheduler.io.wbFuBusyTable 219 intScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.intRespRead 220 fpScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.fpRespRead 221 vfScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.vfRespRead 222 memScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.memRespRead 223 dataPath.io.wbConfictRead := wbFuBusyTable.io.out.wbConflictRead 224 225 private val og1Cancel = dataPath.io.og1Cancel 226 private val og0Cancel = dataPath.io.og0Cancel 227 private val vlIsZero = intExuBlock.io.vlIsZero.get 228 private val vlIsVlmax = intExuBlock.io.vlIsVlmax.get 229 230 ctrlBlock.io.intIQValidNumVec := intScheduler.io.intIQValidNumVec 231 ctrlBlock.io.fpIQValidNumVec := fpScheduler.io.fpIQValidNumVec 232 ctrlBlock.io.fromTop.hartId := io.fromTop.hartId 233 ctrlBlock.io.frontend <> io.frontend 234 ctrlBlock.io.fromCSR.toDecode := intExuBlock.io.csrToDecode.get 235 ctrlBlock.io.fromWB.wbData <> wbDataPath.io.toCtrlBlock.writeback 236 ctrlBlock.io.fromMem.stIn <> io.mem.stIn 237 ctrlBlock.io.fromMem.violation <> io.mem.memoryViolation 238 ctrlBlock.io.lqCanAccept := io.mem.lqCanAccept 239 ctrlBlock.io.sqCanAccept := io.mem.sqCanAccept 240 ctrlBlock.io.csrCtrl <> intExuBlock.io.csrio.get.customCtrl 241 ctrlBlock.io.robio.csr.intrBitSet := intExuBlock.io.csrio.get.interrupt 242 ctrlBlock.io.robio.csr.trapTarget := intExuBlock.io.csrio.get.trapTarget 243 ctrlBlock.io.robio.csr.isXRet := intExuBlock.io.csrio.get.isXRet 244 ctrlBlock.io.robio.csr.wfiEvent := intExuBlock.io.csrio.get.wfi_event 245 ctrlBlock.io.robio.lsq <> io.mem.robLsqIO 246 ctrlBlock.io.robio.lsTopdownInfo <> io.mem.lsTopdownInfo 247 ctrlBlock.io.robio.debug_ls <> io.mem.debugLS 248 ctrlBlock.io.debugEnqLsq.canAccept := io.mem.lsqEnqIO.canAccept 249 ctrlBlock.io.debugEnqLsq.resp := io.mem.lsqEnqIO.resp 250 ctrlBlock.io.debugEnqLsq.req := memScheduler.io.memIO.get.lsqEnqIO.req 251 ctrlBlock.io.debugEnqLsq.needAlloc := memScheduler.io.memIO.get.lsqEnqIO.needAlloc 252 ctrlBlock.io.debugEnqLsq.iqAccept := memScheduler.io.memIO.get.lsqEnqIO.iqAccept 253 254 intScheduler.io.fromTop.hartId := io.fromTop.hartId 255 intScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 256 intScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 257 intScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.intUops 258 intScheduler.io.intWriteBack := wbDataPath.io.toIntPreg 259 intScheduler.io.fpWriteBack := 0.U.asTypeOf(intScheduler.io.fpWriteBack) 260 intScheduler.io.vfWriteBack := 0.U.asTypeOf(intScheduler.io.vfWriteBack) 261 intScheduler.io.v0WriteBack := 0.U.asTypeOf(intScheduler.io.v0WriteBack) 262 intScheduler.io.vlWriteBack := 0.U.asTypeOf(intScheduler.io.vlWriteBack) 263 intScheduler.io.fromDataPath.resp := dataPath.io.toIntIQ 264 intScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 265 intScheduler.io.fromDataPath.og0Cancel := og0Cancel 266 intScheduler.io.fromDataPath.og1Cancel := og1Cancel 267 intScheduler.io.ldCancel := io.mem.ldCancel 268 intScheduler.io.fromDataPath.replaceRCIdx.get := dataPath.io.toWakeupQueueRCIdx.take(params.getIntExuRCWriteSize) 269 intScheduler.io.vlWriteBackInfo.vlIsZero := false.B 270 intScheduler.io.vlWriteBackInfo.vlIsVlmax := false.B 271 272 fpScheduler.io.fromTop.hartId := io.fromTop.hartId 273 fpScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 274 fpScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 275 fpScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.fpUops 276 fpScheduler.io.intWriteBack := 0.U.asTypeOf(fpScheduler.io.intWriteBack) 277 fpScheduler.io.fpWriteBack := wbDataPath.io.toFpPreg 278 fpScheduler.io.vfWriteBack := 0.U.asTypeOf(fpScheduler.io.vfWriteBack) 279 fpScheduler.io.v0WriteBack := 0.U.asTypeOf(fpScheduler.io.v0WriteBack) 280 fpScheduler.io.vlWriteBack := 0.U.asTypeOf(fpScheduler.io.vlWriteBack) 281 fpScheduler.io.fromDataPath.resp := dataPath.io.toFpIQ 282 fpScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 283 fpScheduler.io.fromDataPath.og0Cancel := og0Cancel 284 fpScheduler.io.fromDataPath.og1Cancel := og1Cancel 285 fpScheduler.io.ldCancel := io.mem.ldCancel 286 fpScheduler.io.vlWriteBackInfo.vlIsZero := false.B 287 fpScheduler.io.vlWriteBackInfo.vlIsVlmax := false.B 288 289 memScheduler.io.fromTop.hartId := io.fromTop.hartId 290 memScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 291 memScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 292 memScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.memUops 293 memScheduler.io.intWriteBack := wbDataPath.io.toIntPreg 294 memScheduler.io.fpWriteBack := wbDataPath.io.toFpPreg 295 memScheduler.io.vfWriteBack := wbDataPath.io.toVfPreg 296 memScheduler.io.v0WriteBack := wbDataPath.io.toV0Preg 297 memScheduler.io.vlWriteBack := wbDataPath.io.toVlPreg 298 memScheduler.io.fromMem.get.scommit := io.mem.sqDeq 299 memScheduler.io.fromMem.get.lcommit := io.mem.lqDeq 300 memScheduler.io.fromMem.get.wakeup := io.mem.wakeup 301 memScheduler.io.fromMem.get.sqDeqPtr := io.mem.sqDeqPtr 302 memScheduler.io.fromMem.get.lqDeqPtr := io.mem.lqDeqPtr 303 memScheduler.io.fromMem.get.sqCancelCnt := io.mem.sqCancelCnt 304 memScheduler.io.fromMem.get.lqCancelCnt := io.mem.lqCancelCnt 305 memScheduler.io.fromMem.get.stIssuePtr := io.mem.stIssuePtr 306 require(memScheduler.io.fromMem.get.memWaitUpdateReq.robIdx.length == io.mem.stIn.length) 307 memScheduler.io.fromMem.get.memWaitUpdateReq.robIdx.zip(io.mem.stIn).foreach { case (sink, source) => 308 sink.valid := source.valid 309 sink.bits := source.bits.robIdx 310 } 311 memScheduler.io.fromMem.get.memWaitUpdateReq.sqIdx := DontCare // TODO 312 memScheduler.io.fromDataPath.resp := dataPath.io.toMemIQ 313 memScheduler.io.fromMem.get.ldaFeedback := io.mem.ldaIqFeedback 314 memScheduler.io.fromMem.get.staFeedback := io.mem.staIqFeedback 315 memScheduler.io.fromMem.get.hyuFeedback := io.mem.hyuIqFeedback 316 memScheduler.io.fromMem.get.vstuFeedback := io.mem.vstuIqFeedback 317 memScheduler.io.fromMem.get.vlduFeedback := io.mem.vlduIqFeedback 318 memScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 319 memScheduler.io.fromDataPath.og0Cancel := og0Cancel 320 memScheduler.io.fromDataPath.og1Cancel := og1Cancel 321 memScheduler.io.ldCancel := io.mem.ldCancel 322 memScheduler.io.fromDataPath.replaceRCIdx.get := dataPath.io.toWakeupQueueRCIdx.takeRight(params.getMemExuRCWriteSize) 323 memScheduler.io.vlWriteBackInfo.vlIsZero := vlIsZero 324 memScheduler.io.vlWriteBackInfo.vlIsVlmax := vlIsVlmax 325 memScheduler.io.fromOg2Resp.get := og2ForVector.io.toMemIQOg2Resp 326 327 vfScheduler.io.fromTop.hartId := io.fromTop.hartId 328 vfScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 329 vfScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 330 vfScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.vfUops 331 vfScheduler.io.intWriteBack := 0.U.asTypeOf(vfScheduler.io.intWriteBack) 332 vfScheduler.io.fpWriteBack := 0.U.asTypeOf(vfScheduler.io.fpWriteBack) 333 vfScheduler.io.vfWriteBack := wbDataPath.io.toVfPreg 334 vfScheduler.io.v0WriteBack := wbDataPath.io.toV0Preg 335 vfScheduler.io.vlWriteBack := wbDataPath.io.toVlPreg 336 vfScheduler.io.fromDataPath.resp := dataPath.io.toVfIQ 337 vfScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 338 vfScheduler.io.fromDataPath.og0Cancel := og0Cancel 339 vfScheduler.io.fromDataPath.og1Cancel := og1Cancel 340 vfScheduler.io.ldCancel := io.mem.ldCancel 341 vfScheduler.io.vlWriteBackInfo.vlIsZero := vlIsZero 342 vfScheduler.io.vlWriteBackInfo.vlIsVlmax := vlIsVlmax 343 vfScheduler.io.fromOg2Resp.get := og2ForVector.io.toVfIQOg2Resp 344 345 dataPath.io.hartId := io.fromTop.hartId 346 dataPath.io.flush := ctrlBlock.io.toDataPath.flush 347 348 dataPath.io.fromIntIQ <> intScheduler.io.toDataPathAfterDelay 349 dataPath.io.fromFpIQ <> fpScheduler.io.toDataPathAfterDelay 350 dataPath.io.fromVfIQ <> vfScheduler.io.toDataPathAfterDelay 351 dataPath.io.fromMemIQ <> memScheduler.io.toDataPathAfterDelay 352 353 dataPath.io.ldCancel := io.mem.ldCancel 354 355 println(s"[Backend] wbDataPath.io.toIntPreg: ${wbDataPath.io.toIntPreg.size}, dataPath.io.fromIntWb: ${dataPath.io.fromIntWb.size}") 356 println(s"[Backend] wbDataPath.io.toVfPreg: ${wbDataPath.io.toVfPreg.size}, dataPath.io.fromFpWb: ${dataPath.io.fromVfWb.size}") 357 dataPath.io.fromIntWb := wbDataPath.io.toIntPreg 358 dataPath.io.fromFpWb := wbDataPath.io.toFpPreg 359 dataPath.io.fromVfWb := wbDataPath.io.toVfPreg 360 dataPath.io.fromV0Wb := wbDataPath.io.toV0Preg 361 dataPath.io.fromVlWb := wbDataPath.io.toVlPreg 362 dataPath.io.diffIntRat.foreach(_ := ctrlBlock.io.diff_int_rat.get) 363 dataPath.io.diffFpRat .foreach(_ := ctrlBlock.io.diff_fp_rat.get) 364 dataPath.io.diffVecRat.foreach(_ := ctrlBlock.io.diff_vec_rat.get) 365 dataPath.io.diffV0Rat .foreach(_ := ctrlBlock.io.diff_v0_rat.get) 366 dataPath.io.diffVlRat .foreach(_ := ctrlBlock.io.diff_vl_rat.get) 367 dataPath.io.fromBypassNetwork := bypassNetwork.io.toDataPath 368 369 og2ForVector.io.flush := ctrlBlock.io.toDataPath.flush 370 og2ForVector.io.ldCancel := io.mem.ldCancel 371 og2ForVector.io.fromOg1VfArith <> dataPath.io.toVecExu 372 og2ForVector.io.fromOg1VecMem.zip(dataPath.io.toMemExu.zip(params.memSchdParams.get.issueBlockParams).filter(_._2.needOg2Resp).map(_._1)) 373 .foreach { 374 case (og1Mem, datapathMem) => og1Mem <> datapathMem 375 } 376 og2ForVector.io.fromOg1ImmInfo := dataPath.io.og1ImmInfo.zip(params.allExuParams).filter(_._2.needOg2).map(_._1) 377 378 println(s"[Backend] BypassNetwork OG1 Mem Size: ${bypassNetwork.io.fromDataPath.mem.zip(params.memSchdParams.get.issueBlockParams).filterNot(_._2.needOg2Resp).size}") 379 println(s"[Backend] BypassNetwork OG2 Mem Size: ${bypassNetwork.io.fromDataPath.mem.zip(params.memSchdParams.get.issueBlockParams).filter(_._2.needOg2Resp).size}") 380 println(s"[Backend] bypassNetwork.io.fromDataPath.mem: ${bypassNetwork.io.fromDataPath.mem.size}, dataPath.io.toMemExu: ${dataPath.io.toMemExu.size}") 381 bypassNetwork.io.fromDataPath.int <> dataPath.io.toIntExu 382 bypassNetwork.io.fromDataPath.fp <> dataPath.io.toFpExu 383 bypassNetwork.io.fromDataPath.vf <> og2ForVector.io.toVfArithExu 384 bypassNetwork.io.fromDataPath.mem.lazyZip(params.memSchdParams.get.issueBlockParams).lazyZip(dataPath.io.toMemExu).filterNot(_._2.needOg2Resp) 385 .map(x => (x._1, x._3)).foreach { 386 case (bypassMem, datapathMem) => bypassMem <> datapathMem 387 } 388 bypassNetwork.io.fromDataPath.mem.zip(params.memSchdParams.get.issueBlockParams).filter(_._2.needOg2Resp).map(_._1) 389 .zip(og2ForVector.io.toVecMemExu).foreach { 390 case (bypassMem, og2Mem) => bypassMem <> og2Mem 391 } 392 bypassNetwork.io.fromDataPath.immInfo := dataPath.io.og1ImmInfo 393 bypassNetwork.io.fromDataPath.immInfo.zip(params.allExuParams).filter(_._2.needOg2).map(_._1) 394 .zip(og2ForVector.io.toBypassNetworkImmInfo).foreach { 395 case (immInfo, og2ImmInfo) => immInfo := og2ImmInfo 396 } 397 bypassNetwork.io.fromDataPath.rcData := dataPath.io.toBypassNetworkRCData 398 bypassNetwork.io.fromExus.connectExuOutput(_.int)(intExuBlock.io.out) 399 bypassNetwork.io.fromExus.connectExuOutput(_.fp)(fpExuBlock.io.out) 400 bypassNetwork.io.fromExus.connectExuOutput(_.vf)(vfExuBlock.io.out) 401 402 require(bypassNetwork.io.fromExus.mem.flatten.size == io.mem.writeBack.size, 403 s"bypassNetwork.io.fromExus.mem.flatten.size(${bypassNetwork.io.fromExus.mem.flatten.size}: ${bypassNetwork.io.fromExus.mem.map(_.size)}, " + 404 s"io.mem.writeback(${io.mem.writeBack.size})" 405 ) 406 bypassNetwork.io.fromExus.mem.flatten.zip(io.mem.writeBack).foreach { case (sink, source) => 407 sink.valid := source.valid 408 sink.bits.intWen := source.bits.uop.rfWen && FuType.isLoad(source.bits.uop.fuType) 409 sink.bits.pdest := source.bits.uop.pdest 410 sink.bits.data := source.bits.data 411 } 412 413 414 intExuBlock.io.flush := ctrlBlock.io.toExuBlock.flush 415 for (i <- 0 until intExuBlock.io.in.length) { 416 for (j <- 0 until intExuBlock.io.in(i).length) { 417 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.int(i)(j).bits.loadDependency, io.mem.ldCancel) 418 NewPipelineConnect( 419 bypassNetwork.io.toExus.int(i)(j), intExuBlock.io.in(i)(j), intExuBlock.io.in(i)(j).fire, 420 Mux( 421 bypassNetwork.io.toExus.int(i)(j).fire, 422 bypassNetwork.io.toExus.int(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 423 intExuBlock.io.in(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) 424 ), 425 Option("bypassNetwork2intExuBlock") 426 ) 427 } 428 } 429 430 pcTargetMem.io.fromFrontendFtq := io.frontend.fromFtq 431 pcTargetMem.io.toDataPath <> dataPath.io.fromPcTargetMem 432 433 private val csrin = intExuBlock.io.csrin.get 434 csrin.hartId := io.fromTop.hartId 435 csrin.msiInfo.valid := RegNext(io.fromTop.msiInfo.valid) 436 csrin.msiInfo.bits := RegEnable(io.fromTop.msiInfo.bits, io.fromTop.msiInfo.valid) 437 csrin.clintTime.valid := RegNext(io.fromTop.clintTime.valid) 438 csrin.clintTime.bits := RegEnable(io.fromTop.clintTime.bits, io.fromTop.clintTime.valid) 439 csrin.trapInstInfo := ctrlBlock.io.toCSR.trapInstInfo 440 441 private val csrio = intExuBlock.io.csrio.get 442 csrio.hartId := io.fromTop.hartId 443 csrio.fpu.fflags := ctrlBlock.io.robio.csr.fflags 444 csrio.fpu.isIllegal := false.B // Todo: remove it 445 csrio.fpu.dirty_fs := ctrlBlock.io.robio.csr.dirty_fs 446 csrio.vpu <> WireDefault(0.U.asTypeOf(csrio.vpu)) // Todo 447 448 val fromIntExuVsetVType = intExuBlock.io.vtype.getOrElse(0.U.asTypeOf((Valid(new VType)))) 449 val fromVfExuVsetVType = vfExuBlock.io.vtype.getOrElse(0.U.asTypeOf((Valid(new VType)))) 450 val fromVsetVType = Mux(fromIntExuVsetVType.valid, fromIntExuVsetVType.bits, fromVfExuVsetVType.bits) 451 val vsetvlVType = RegEnable(fromVsetVType, 0.U.asTypeOf(new VType), fromIntExuVsetVType.valid || fromVfExuVsetVType.valid) 452 ctrlBlock.io.toDecode.vsetvlVType := vsetvlVType 453 454 val commitVType = ctrlBlock.io.robio.commitVType.vtype 455 val hasVsetvl = ctrlBlock.io.robio.commitVType.hasVsetvl 456 val vtype = VType.toVtypeStruct(Mux(hasVsetvl, vsetvlVType, commitVType.bits)).asUInt 457 458 // csr not store the value of vl, so when using difftest we assign the value of vl to debugVl 459 val debugVl_s0 = WireInit(UInt(VlData().dataWidth.W), 0.U) 460 val debugVl_s1 = WireInit(UInt(VlData().dataWidth.W), 0.U) 461 debugVl_s0 := dataPath.io.diffVl.getOrElse(0.U.asTypeOf(UInt(VlData().dataWidth.W))) 462 debugVl_s1 := RegNext(debugVl_s0) 463 csrio.vpu.set_vxsat := ctrlBlock.io.robio.csr.vxsat 464 csrio.vpu.set_vstart.valid := ctrlBlock.io.robio.csr.vstart.valid 465 csrio.vpu.set_vstart.bits := ctrlBlock.io.robio.csr.vstart.bits 466 ctrlBlock.io.toDecode.vstart := csrio.vpu.vstart 467 //Todo here need change design 468 csrio.vpu.set_vtype.valid := commitVType.valid 469 csrio.vpu.set_vtype.bits := ZeroExt(vtype, XLEN) 470 csrio.vpu.vl := ZeroExt(debugVl_s1, XLEN) 471 csrio.vpu.dirty_vs := ctrlBlock.io.robio.csr.dirty_vs 472 csrio.exception := ctrlBlock.io.robio.exception 473 csrio.robDeqPtr := ctrlBlock.io.robio.robDeqPtr 474 csrio.memExceptionVAddr := io.mem.exceptionAddr.vaddr 475 csrio.memExceptionGPAddr := io.mem.exceptionAddr.gpaddr 476 csrio.memExceptionIsForVSnonLeafPTE := io.mem.exceptionAddr.isForVSnonLeafPTE 477 csrio.externalInterrupt := RegNext(io.fromTop.externalInterrupt) 478 csrio.perf <> io.perf 479 csrio.perf.retiredInstr <> ctrlBlock.io.robio.csr.perfinfo.retiredInstr 480 csrio.perf.ctrlInfo <> ctrlBlock.io.perfInfo.ctrlInfo 481 private val fenceio = intExuBlock.io.fenceio.get 482 io.fenceio <> fenceio 483 484 // to fpExuBlock 485 fpExuBlock.io.flush := ctrlBlock.io.toExuBlock.flush 486 for (i <- 0 until fpExuBlock.io.in.length) { 487 for (j <- 0 until fpExuBlock.io.in(i).length) { 488 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.fp(i)(j).bits.loadDependency, io.mem.ldCancel) 489 NewPipelineConnect( 490 bypassNetwork.io.toExus.fp(i)(j), fpExuBlock.io.in(i)(j), fpExuBlock.io.in(i)(j).fire, 491 Mux( 492 bypassNetwork.io.toExus.fp(i)(j).fire, 493 bypassNetwork.io.toExus.fp(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 494 fpExuBlock.io.in(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) 495 ), 496 Option("bypassNetwork2fpExuBlock") 497 ) 498 } 499 } 500 501 vfExuBlock.io.flush := ctrlBlock.io.toExuBlock.flush 502 for (i <- 0 until vfExuBlock.io.in.size) { 503 for (j <- 0 until vfExuBlock.io.in(i).size) { 504 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.vf(i)(j).bits.loadDependency, io.mem.ldCancel) 505 NewPipelineConnect( 506 bypassNetwork.io.toExus.vf(i)(j), vfExuBlock.io.in(i)(j), vfExuBlock.io.in(i)(j).fire, 507 Mux( 508 bypassNetwork.io.toExus.vf(i)(j).fire, 509 bypassNetwork.io.toExus.vf(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 510 vfExuBlock.io.in(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) 511 ), 512 Option("bypassNetwork2vfExuBlock") 513 ) 514 515 } 516 } 517 518 intExuBlock.io.frm.foreach(_ := csrio.fpu.frm) 519 fpExuBlock.io.frm.foreach(_ := csrio.fpu.frm) 520 fpExuBlock.io.vxrm.foreach(_ := csrio.vpu.vxrm) 521 vfExuBlock.io.frm.foreach(_ := csrio.fpu.frm) 522 vfExuBlock.io.vxrm.foreach(_ := csrio.vpu.vxrm) 523 524 wbDataPath.io.flush := ctrlBlock.io.redirect 525 wbDataPath.io.fromTop.hartId := io.fromTop.hartId 526 wbDataPath.io.fromIntExu <> intExuBlock.io.out 527 wbDataPath.io.fromFpExu <> fpExuBlock.io.out 528 wbDataPath.io.fromVfExu <> vfExuBlock.io.out 529 wbDataPath.io.fromMemExu.flatten.zip(io.mem.writeBack).foreach { case (sink, source) => 530 sink.valid := source.valid 531 source.ready := sink.ready 532 sink.bits.data := VecInit(Seq.fill(sink.bits.params.wbPathNum)(source.bits.data)) 533 sink.bits.pdest := source.bits.uop.pdest 534 sink.bits.robIdx := source.bits.uop.robIdx 535 sink.bits.intWen.foreach(_ := source.bits.uop.rfWen) 536 sink.bits.fpWen.foreach(_ := source.bits.uop.fpWen) 537 sink.bits.vecWen.foreach(_ := source.bits.uop.vecWen) 538 sink.bits.v0Wen.foreach(_ := source.bits.uop.v0Wen) 539 sink.bits.vlWen.foreach(_ := source.bits.uop.vlWen) 540 sink.bits.exceptionVec.foreach(_ := source.bits.uop.exceptionVec) 541 sink.bits.flushPipe.foreach(_ := source.bits.uop.flushPipe) 542 sink.bits.replay.foreach(_ := source.bits.uop.replayInst) 543 sink.bits.debug := source.bits.debug 544 sink.bits.debugInfo := source.bits.uop.debugInfo 545 sink.bits.lqIdx.foreach(_ := source.bits.uop.lqIdx) 546 sink.bits.sqIdx.foreach(_ := source.bits.uop.sqIdx) 547 sink.bits.predecodeInfo.foreach(_ := source.bits.uop.preDecodeInfo) 548 sink.bits.vls.foreach(x => { 549 x.vdIdx := source.bits.vdIdx.get 550 x.vdIdxInField := source.bits.vdIdxInField.get 551 x.vpu := source.bits.uop.vpu 552 x.oldVdPsrc := source.bits.uop.psrc(2) 553 x.isIndexed := VlduType.isIndexed(source.bits.uop.fuOpType) 554 x.isMasked := VlduType.isMasked(source.bits.uop.fuOpType) 555 }) 556 sink.bits.trigger.foreach(_ := source.bits.uop.trigger) 557 } 558 559 // to mem 560 private val memIssueParams = params.memSchdParams.get.issueBlockParams 561 private val memExuBlocksHasLDU = memIssueParams.map(_.exuBlockParams.map(x => x.hasLoadFu || x.hasHyldaFu)) 562 private val memExuBlocksHasVecLoad = memIssueParams.map(_.exuBlockParams.map(x => x.hasVLoadFu)) 563 println(s"[Backend] memExuBlocksHasLDU: $memExuBlocksHasLDU") 564 println(s"[Backend] memExuBlocksHasVecLoad: $memExuBlocksHasVecLoad") 565 566 private val toMem = Wire(bypassNetwork.io.toExus.mem.cloneType) 567 for (i <- toMem.indices) { 568 for (j <- toMem(i).indices) { 569 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.mem(i)(j).bits.loadDependency, io.mem.ldCancel) 570 val issueTimeout = 571 if (memExuBlocksHasLDU(i)(j)) 572 Counter(0 until 16, toMem(i)(j).valid && !toMem(i)(j).fire, bypassNetwork.io.toExus.mem(i)(j).fire)._2 573 else 574 false.B 575 576 if (memScheduler.io.loadFinalIssueResp(i).nonEmpty && memExuBlocksHasLDU(i)(j)) { 577 memScheduler.io.loadFinalIssueResp(i)(j).valid := issueTimeout 578 memScheduler.io.loadFinalIssueResp(i)(j).bits.fuType := toMem(i)(j).bits.fuType 579 memScheduler.io.loadFinalIssueResp(i)(j).bits.resp := RespType.block 580 memScheduler.io.loadFinalIssueResp(i)(j).bits.robIdx := toMem(i)(j).bits.robIdx 581 memScheduler.io.loadFinalIssueResp(i)(j).bits.uopIdx.foreach(_ := toMem(i)(j).bits.vpu.get.vuopIdx) 582 memScheduler.io.loadFinalIssueResp(i)(j).bits.sqIdx.foreach(_ := toMem(i)(j).bits.sqIdx.get) 583 memScheduler.io.loadFinalIssueResp(i)(j).bits.lqIdx.foreach(_ := toMem(i)(j).bits.lqIdx.get) 584 } 585 586 NewPipelineConnect( 587 bypassNetwork.io.toExus.mem(i)(j), toMem(i)(j), toMem(i)(j).fire, 588 Mux( 589 bypassNetwork.io.toExus.mem(i)(j).fire, 590 bypassNetwork.io.toExus.mem(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 591 toMem(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || issueTimeout 592 ), 593 Option("bypassNetwork2toMemExus") 594 ) 595 596 if (memScheduler.io.memAddrIssueResp(i).nonEmpty && memExuBlocksHasLDU(i)(j)) { 597 memScheduler.io.memAddrIssueResp(i)(j).valid := toMem(i)(j).fire && FuType.isLoad(toMem(i)(j).bits.fuType) 598 memScheduler.io.memAddrIssueResp(i)(j).bits.fuType := toMem(i)(j).bits.fuType 599 memScheduler.io.memAddrIssueResp(i)(j).bits.robIdx := toMem(i)(j).bits.robIdx 600 memScheduler.io.memAddrIssueResp(i)(j).bits.sqIdx.foreach(_ := toMem(i)(j).bits.sqIdx.get) 601 memScheduler.io.memAddrIssueResp(i)(j).bits.lqIdx.foreach(_ := toMem(i)(j).bits.lqIdx.get) 602 memScheduler.io.memAddrIssueResp(i)(j).bits.resp := RespType.success // for load inst, firing at toMem means issuing successfully 603 } 604 605 if (memScheduler.io.vecLoadIssueResp(i).nonEmpty && memExuBlocksHasVecLoad(i)(j)) { 606 memScheduler.io.vecLoadIssueResp(i)(j) match { 607 case resp => 608 resp.valid := toMem(i)(j).fire && VlduType.isVecLd(toMem(i)(j).bits.fuOpType) 609 resp.bits.fuType := toMem(i)(j).bits.fuType 610 resp.bits.robIdx := toMem(i)(j).bits.robIdx 611 resp.bits.uopIdx.get := toMem(i)(j).bits.vpu.get.vuopIdx 612 resp.bits.sqIdx.get := toMem(i)(j).bits.sqIdx.get 613 resp.bits.lqIdx.get := toMem(i)(j).bits.lqIdx.get 614 resp.bits.resp := RespType.success 615 } 616 if (backendParams.debugEn){ 617 dontTouch(memScheduler.io.vecLoadIssueResp(i)(j)) 618 } 619 } 620 } 621 } 622 623 io.mem.redirect := ctrlBlock.io.redirect 624 io.mem.issueUops.zip(toMem.flatten).foreach { case (sink, source) => 625 val enableMdp = Constantin.createRecord("EnableMdp", true) 626 sink.valid := source.valid 627 source.ready := sink.ready 628 sink.bits.iqIdx := source.bits.iqIdx 629 sink.bits.isFirstIssue := source.bits.isFirstIssue 630 sink.bits.uop := 0.U.asTypeOf(sink.bits.uop) 631 sink.bits.src := 0.U.asTypeOf(sink.bits.src) 632 sink.bits.src.zip(source.bits.src).foreach { case (l, r) => l := r} 633 sink.bits.uop.fuType := source.bits.fuType 634 sink.bits.uop.fuOpType := source.bits.fuOpType 635 sink.bits.uop.imm := source.bits.imm 636 sink.bits.uop.robIdx := source.bits.robIdx 637 sink.bits.uop.pdest := source.bits.pdest 638 sink.bits.uop.rfWen := source.bits.rfWen.getOrElse(false.B) 639 sink.bits.uop.fpWen := source.bits.fpWen.getOrElse(false.B) 640 sink.bits.uop.vecWen := source.bits.vecWen.getOrElse(false.B) 641 sink.bits.uop.v0Wen := source.bits.v0Wen.getOrElse(false.B) 642 sink.bits.uop.vlWen := source.bits.vlWen.getOrElse(false.B) 643 sink.bits.uop.flushPipe := source.bits.flushPipe.getOrElse(false.B) 644 sink.bits.uop.pc := source.bits.pc.getOrElse(0.U) 645 sink.bits.uop.loadWaitBit := Mux(enableMdp, source.bits.loadWaitBit.getOrElse(false.B), false.B) 646 sink.bits.uop.waitForRobIdx := Mux(enableMdp, source.bits.waitForRobIdx.getOrElse(0.U.asTypeOf(new RobPtr)), 0.U.asTypeOf(new RobPtr)) 647 sink.bits.uop.storeSetHit := Mux(enableMdp, source.bits.storeSetHit.getOrElse(false.B), false.B) 648 sink.bits.uop.loadWaitStrict := Mux(enableMdp, source.bits.loadWaitStrict.getOrElse(false.B), false.B) 649 sink.bits.uop.ssid := Mux(enableMdp, source.bits.ssid.getOrElse(0.U(SSIDWidth.W)), 0.U(SSIDWidth.W)) 650 sink.bits.uop.lqIdx := source.bits.lqIdx.getOrElse(0.U.asTypeOf(new LqPtr)) 651 sink.bits.uop.sqIdx := source.bits.sqIdx.getOrElse(0.U.asTypeOf(new SqPtr)) 652 sink.bits.uop.ftqPtr := source.bits.ftqIdx.getOrElse(0.U.asTypeOf(new FtqPtr)) 653 sink.bits.uop.ftqOffset := source.bits.ftqOffset.getOrElse(0.U) 654 sink.bits.uop.debugInfo := source.bits.perfDebugInfo 655 sink.bits.uop.vpu := source.bits.vpu.getOrElse(0.U.asTypeOf(new VPUCtrlSignals)) 656 sink.bits.uop.preDecodeInfo := source.bits.preDecode.getOrElse(0.U.asTypeOf(new PreDecodeInfo)) 657 sink.bits.uop.numLsElem := source.bits.numLsElem.getOrElse(0.U) // Todo: remove this bundle, keep only the one below 658 sink.bits.flowNum.foreach(_ := source.bits.numLsElem.get) 659 } 660 io.mem.loadFastMatch := memScheduler.io.toMem.get.loadFastMatch.map(_.fastMatch) 661 io.mem.loadFastImm := memScheduler.io.toMem.get.loadFastMatch.map(_.fastImm) 662 io.mem.tlbCsr := csrio.tlb 663 io.mem.csrCtrl := csrio.customCtrl 664 io.mem.sfence := fenceio.sfence 665 io.mem.isStoreException := CommitType.lsInstIsStore(ctrlBlock.io.robio.exception.bits.commitType) 666 io.mem.isVlsException := ctrlBlock.io.robio.exception.bits.vls 667 require(io.mem.loadPcRead.size == params.LduCnt) 668 io.mem.loadPcRead.zipWithIndex.foreach { case (loadPcRead, i) => 669 loadPcRead := ctrlBlock.io.memLdPcRead(i).data 670 ctrlBlock.io.memLdPcRead(i).valid := io.mem.issueLda(i).valid 671 ctrlBlock.io.memLdPcRead(i).ptr := io.mem.issueLda(i).bits.uop.ftqPtr 672 ctrlBlock.io.memLdPcRead(i).offset := io.mem.issueLda(i).bits.uop.ftqOffset 673 } 674 675 io.mem.storePcRead.zipWithIndex.foreach { case (storePcRead, i) => 676 storePcRead := ctrlBlock.io.memStPcRead(i).data 677 ctrlBlock.io.memStPcRead(i).valid := io.mem.issueSta(i).valid 678 ctrlBlock.io.memStPcRead(i).ptr := io.mem.issueSta(i).bits.uop.ftqPtr 679 ctrlBlock.io.memStPcRead(i).offset := io.mem.issueSta(i).bits.uop.ftqOffset 680 } 681 682 io.mem.hyuPcRead.zipWithIndex.foreach( { case (hyuPcRead, i) => 683 hyuPcRead := ctrlBlock.io.memHyPcRead(i).data 684 ctrlBlock.io.memHyPcRead(i).valid := io.mem.issueHylda(i).valid 685 ctrlBlock.io.memHyPcRead(i).ptr := io.mem.issueHylda(i).bits.uop.ftqPtr 686 ctrlBlock.io.memHyPcRead(i).offset := io.mem.issueHylda(i).bits.uop.ftqOffset 687 }) 688 689 ctrlBlock.io.robio.robHeadLsIssue := io.mem.issueUops.map(deq => deq.fire && deq.bits.uop.robIdx === ctrlBlock.io.robio.robDeqPtr).reduce(_ || _) 690 691 // mem io 692 io.mem.lsqEnqIO <> memScheduler.io.memIO.get.lsqEnqIO 693 io.mem.robLsqIO <> ctrlBlock.io.robio.lsq 694 695 io.frontendSfence := fenceio.sfence 696 io.frontendTlbCsr := csrio.tlb 697 io.frontendCsrCtrl := csrio.customCtrl 698 699 io.tlb <> csrio.tlb 700 701 io.csrCustomCtrl := csrio.customCtrl 702 703 io.toTop.cpuHalted := false.B // TODO: implement cpu halt 704 705 io.debugTopDown.fromRob := ctrlBlock.io.debugTopDown.fromRob 706 ctrlBlock.io.debugTopDown.fromCore := io.debugTopDown.fromCore 707 708 io.debugRolling := ctrlBlock.io.debugRolling 709 710 if(backendParams.debugEn) { 711 dontTouch(memScheduler.io) 712 dontTouch(dataPath.io.toMemExu) 713 dontTouch(wbDataPath.io.fromMemExu) 714 } 715 716 // reset tree 717 if (p(DebugOptionsKey).ResetGen) { 718 val rightResetTree = ResetGenNode(Seq( 719 ModuleNode(dataPath), 720 ModuleNode(intExuBlock), 721 ModuleNode(fpExuBlock), 722 ModuleNode(vfExuBlock), 723 ModuleNode(bypassNetwork), 724 ModuleNode(wbDataPath) 725 )) 726 val leftResetTree = ResetGenNode(Seq( 727 ModuleNode(pcTargetMem), 728 ModuleNode(intScheduler), 729 ModuleNode(fpScheduler), 730 ModuleNode(vfScheduler), 731 ModuleNode(memScheduler), 732 ModuleNode(og2ForVector), 733 ModuleNode(wbFuBusyTable), 734 ResetGenNode(Seq( 735 ModuleNode(ctrlBlock), 736 // ResetGenNode(Seq( 737 CellNode(io.frontendReset) 738 // )) 739 )) 740 )) 741 ResetGen(leftResetTree, reset, sim = false) 742 ResetGen(rightResetTree, reset, sim = false) 743 } else { 744 io.frontendReset := DontCare 745 } 746 747 // perf events 748 val pfevent = Module(new PFEvent) 749 pfevent.io.distribute_csr := RegNext(csrio.customCtrl.distribute_csr) 750 val csrevents = pfevent.io.hpmevent.slice(8,16) 751 752 val ctrlBlockPerf = ctrlBlock.getPerfEvents 753 val intSchedulerPerf = intScheduler.asInstanceOf[SchedulerArithImp].getPerfEvents 754 val fpSchedulerPerf = fpScheduler.asInstanceOf[SchedulerArithImp].getPerfEvents 755 val vecSchedulerPerf = vfScheduler.asInstanceOf[SchedulerArithImp].getPerfEvents 756 val memSchedulerPerf = memScheduler.asInstanceOf[SchedulerMemImp].getPerfEvents 757 758 val perfBackend = Seq() 759 // let index = 0 be no event 760 val allPerfEvents = Seq(("noEvent", 0.U)) ++ ctrlBlockPerf ++ intSchedulerPerf ++ fpSchedulerPerf ++ vecSchedulerPerf ++ memSchedulerPerf ++ perfBackend 761 762 763 if (printEventCoding) { 764 for (((name, inc), i) <- allPerfEvents.zipWithIndex) { 765 println("backend perfEvents Set", name, inc, i) 766 } 767 } 768 769 val allPerfInc = allPerfEvents.map(_._2.asTypeOf(new PerfEvent)) 770 val perfEvents = HPerfMonitor(csrevents, allPerfInc).getPerfEvents 771 csrio.perf.perfEventsBackend := VecInit(perfEvents.map(_._2.asTypeOf(new PerfEvent))) 772 generatePerfEvent() 773} 774 775class BackendMemIO(implicit p: Parameters, params: BackendParams) extends XSBundle { 776 // Since fast load replay always use load unit 0, Backend flips two load port to avoid conflicts 777 val flippedLda = true 778 // params alias 779 private val LoadQueueSize = VirtualLoadQueueSize 780 // In/Out // Todo: split it into one-direction bundle 781 val lsqEnqIO = Flipped(new LsqEnqIO) 782 val robLsqIO = new RobLsqIO 783 val ldaIqFeedback = Vec(params.LduCnt, Flipped(new MemRSFeedbackIO)) 784 val staIqFeedback = Vec(params.StaCnt, Flipped(new MemRSFeedbackIO)) 785 val hyuIqFeedback = Vec(params.HyuCnt, Flipped(new MemRSFeedbackIO)) 786 val vstuIqFeedback = Flipped(Vec(params.VstuCnt, new MemRSFeedbackIO(isVector = true))) 787 val vlduIqFeedback = Flipped(Vec(params.VlduCnt, new MemRSFeedbackIO(isVector = true))) 788 val ldCancel = Vec(params.LdExuCnt, Input(new LoadCancelIO)) 789 val wakeup = Vec(params.LdExuCnt, Flipped(Valid(new DynInst))) 790 val loadPcRead = Vec(params.LduCnt, Output(UInt(VAddrBits.W))) 791 val storePcRead = Vec(params.StaCnt, Output(UInt(VAddrBits.W))) 792 val hyuPcRead = Vec(params.HyuCnt, Output(UInt(VAddrBits.W))) 793 // Input 794 val writebackLda = Vec(params.LduCnt, Flipped(DecoupledIO(new MemExuOutput))) 795 val writebackSta = Vec(params.StaCnt, Flipped(DecoupledIO(new MemExuOutput))) 796 val writebackStd = Vec(params.StdCnt, Flipped(DecoupledIO(new MemExuOutput))) 797 val writebackHyuLda = Vec(params.HyuCnt, Flipped(DecoupledIO(new MemExuOutput))) 798 val writebackHyuSta = Vec(params.HyuCnt, Flipped(DecoupledIO(new MemExuOutput))) 799 val writebackVldu = Vec(params.VlduCnt, Flipped(DecoupledIO(new MemExuOutput(true)))) 800 801 val s3_delayed_load_error = Input(Vec(LoadPipelineWidth, Bool())) 802 val stIn = Input(Vec(params.StaExuCnt, ValidIO(new DynInst()))) 803 val memoryViolation = Flipped(ValidIO(new Redirect)) 804 val exceptionAddr = Input(new Bundle { 805 val vaddr = UInt(XLEN.W) 806 val gpaddr = UInt(XLEN.W) 807 val isForVSnonLeafPTE = Bool() 808 }) 809 val sqDeq = Input(UInt(log2Ceil(EnsbufferWidth + 1).W)) 810 val lqDeq = Input(UInt(log2Up(CommitWidth + 1).W)) 811 val sqDeqPtr = Input(new SqPtr) 812 val lqDeqPtr = Input(new LqPtr) 813 814 val lqCancelCnt = Input(UInt(log2Up(VirtualLoadQueueSize + 1).W)) 815 val sqCancelCnt = Input(UInt(log2Up(StoreQueueSize + 1).W)) 816 817 val lqCanAccept = Input(Bool()) 818 val sqCanAccept = Input(Bool()) 819 820 val otherFastWakeup = Flipped(Vec(params.LduCnt + params.HyuCnt, ValidIO(new DynInst))) 821 val stIssuePtr = Input(new SqPtr()) 822 823 val debugLS = Flipped(Output(new DebugLSIO)) 824 825 val lsTopdownInfo = Vec(params.LduCnt + params.HyuCnt, Flipped(Output(new LsTopdownInfo))) 826 // Output 827 val redirect = ValidIO(new Redirect) // rob flush MemBlock 828 val issueLda = MixedVec(Seq.fill(params.LduCnt)(DecoupledIO(new MemExuInput()))) 829 val issueSta = MixedVec(Seq.fill(params.StaCnt)(DecoupledIO(new MemExuInput()))) 830 val issueStd = MixedVec(Seq.fill(params.StdCnt)(DecoupledIO(new MemExuInput()))) 831 val issueHylda = MixedVec(Seq.fill(params.HyuCnt)(DecoupledIO(new MemExuInput()))) 832 val issueHysta = MixedVec(Seq.fill(params.HyuCnt)(DecoupledIO(new MemExuInput()))) 833 val issueVldu = MixedVec(Seq.fill(params.VlduCnt)(DecoupledIO(new MemExuInput(true)))) 834 835 val loadFastMatch = Vec(params.LduCnt, Output(UInt(params.LduCnt.W))) 836 val loadFastImm = Vec(params.LduCnt, Output(UInt(12.W))) // Imm_I 837 838 val tlbCsr = Output(new TlbCsrBundle) 839 val csrCtrl = Output(new CustomCSRCtrlIO) 840 val sfence = Output(new SfenceBundle) 841 val isStoreException = Output(Bool()) 842 val isVlsException = Output(Bool()) 843 844 // ATTENTION: The issue ports' sequence order should be the same as IQs' deq config 845 private [backend] def issueUops: Seq[DecoupledIO[MemExuInput]] = { 846 issueSta ++ 847 issueHylda ++ issueHysta ++ 848 issueLda ++ 849 issueVldu ++ 850 issueStd 851 }.toSeq 852 853 // ATTENTION: The writeback ports' sequence order should be the same as IQs' deq config 854 private [backend] def writeBack: Seq[DecoupledIO[MemExuOutput]] = { 855 writebackSta ++ 856 writebackHyuLda ++ writebackHyuSta ++ 857 writebackLda ++ 858 writebackVldu ++ 859 writebackStd 860 } 861} 862 863class TopToBackendBundle(implicit p: Parameters) extends XSBundle { 864 val hartId = Output(UInt(hartIdLen.W)) 865 val externalInterrupt = Output(new ExternalInterruptIO) 866 val msiInfo = Output(ValidIO(new MsiInfoBundle)) 867 val clintTime = Output(ValidIO(UInt(64.W))) 868} 869 870class BackendToTopBundle extends Bundle { 871 val cpuHalted = Output(Bool()) 872} 873 874class BackendIO(implicit p: Parameters, params: BackendParams) extends XSBundle with HasSoCParameter { 875 val fromTop = Flipped(new TopToBackendBundle) 876 877 val toTop = new BackendToTopBundle 878 879 val fenceio = new FenceIO 880 // Todo: merge these bundles into BackendFrontendIO 881 val frontend = Flipped(new FrontendToCtrlIO) 882 val frontendSfence = Output(new SfenceBundle) 883 val frontendCsrCtrl = Output(new CustomCSRCtrlIO) 884 val frontendTlbCsr = Output(new TlbCsrBundle) 885 val frontendReset = Output(Reset()) 886 887 val mem = new BackendMemIO 888 889 val perf = Input(new PerfCounterIO) 890 891 val tlb = Output(new TlbCsrBundle) 892 893 val csrCustomCtrl = Output(new CustomCSRCtrlIO) 894 895 val debugTopDown = new Bundle { 896 val fromRob = new RobCoreTopDownIO 897 val fromCore = new CoreDispatchTopDownIO 898 } 899 val debugRolling = new RobDebugRollingIO 900} 901