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.{Constantin, ZeroExt} 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, PerfCounterIO} 38import xiangshan.backend.issue.EntryBundles._ 39import xiangshan.backend.issue.{CancelNetwork, Scheduler, SchedulerImpBase} 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 49 override def shouldBeInlined: Boolean = false 50 51 // check read & write port config 52 params.configChecks 53 54 /* Only update the idx in mem-scheduler here 55 * Idx in other schedulers can be updated the same way if needed 56 * 57 * Also note that we filter out the 'stData issue-queues' when counting 58 */ 59 for ((ibp, idx) <- params.memSchdParams.get.issueBlockParams.filter(iq => iq.StdCnt == 0).zipWithIndex) { 60 ibp.updateIdx(idx) 61 } 62 63 println(params.iqWakeUpParams) 64 65 for ((schdCfg, i) <- params.allSchdParams.zipWithIndex) { 66 schdCfg.bindBackendParam(params) 67 } 68 69 for ((iqCfg, i) <- params.allIssueParams.zipWithIndex) { 70 iqCfg.bindBackendParam(params) 71 } 72 73 for ((exuCfg, i) <- params.allExuParams.zipWithIndex) { 74 exuCfg.bindBackendParam(params) 75 exuCfg.updateIQWakeUpConfigs(params.iqWakeUpParams) 76 exuCfg.updateExuIdx(i) 77 } 78 79 println("[Backend] ExuConfigs:") 80 for (exuCfg <- params.allExuParams) { 81 val fuConfigs = exuCfg.fuConfigs 82 val wbPortConfigs = exuCfg.wbPortConfigs 83 val immType = exuCfg.immType 84 85 println("[Backend] " + 86 s"${exuCfg.name}: " + 87 (if (exuCfg.fakeUnit) "fake, " else "") + 88 (if (exuCfg.hasLoadFu || exuCfg.hasHyldaFu) s"LdExuIdx(${backendParams.getLdExuIdx(exuCfg)})" else "") + 89 s"${fuConfigs.map(_.name).mkString("fu(s): {", ",", "}")}, " + 90 s"${wbPortConfigs.mkString("wb: {", ",", "}")}, " + 91 s"${immType.map(SelImm.mkString(_)).mkString("imm: {", ",", "}")}, " + 92 s"latMax(${exuCfg.latencyValMax}), ${exuCfg.fuLatancySet.mkString("lat: {", ",", "}")}, " + 93 s"srcReg(${exuCfg.numRegSrc})" 94 ) 95 require( 96 wbPortConfigs.collectFirst { case x: IntWB => x }.nonEmpty == 97 fuConfigs.map(_.writeIntRf).reduce(_ || _), 98 s"${exuCfg.name} int wb port has no priority" 99 ) 100 require( 101 wbPortConfigs.collectFirst { case x: FpWB => x }.nonEmpty == 102 fuConfigs.map(x => x.writeFpRf).reduce(_ || _), 103 s"${exuCfg.name} fp wb port has no priority" 104 ) 105 require( 106 wbPortConfigs.collectFirst { case x: VfWB => x }.nonEmpty == 107 fuConfigs.map(x => x.writeVecRf).reduce(_ || _), 108 s"${exuCfg.name} vec wb port has no priority" 109 ) 110 } 111 112 println(s"[Backend] all fu configs") 113 for (cfg <- FuConfig.allConfigs) { 114 println(s"[Backend] $cfg") 115 } 116 117 println(s"[Backend] Int RdConfigs: ExuName(Priority)") 118 for ((port, seq) <- params.getRdPortParams(IntData())) { 119 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 120 } 121 122 println(s"[Backend] Int WbConfigs: ExuName(Priority)") 123 for ((port, seq) <- params.getWbPortParams(IntData())) { 124 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 125 } 126 127 println(s"[Backend] Fp RdConfigs: ExuName(Priority)") 128 for ((port, seq) <- params.getRdPortParams(FpData())) { 129 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 130 } 131 132 println(s"[Backend] Fp WbConfigs: ExuName(Priority)") 133 for ((port, seq) <- params.getWbPortParams(FpData())) { 134 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 135 } 136 137 println(s"[Backend] Vf RdConfigs: ExuName(Priority)") 138 for ((port, seq) <- params.getRdPortParams(VecData())) { 139 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 140 } 141 142 println(s"[Backend] Vf WbConfigs: ExuName(Priority)") 143 for ((port, seq) <- params.getWbPortParams(VecData())) { 144 println(s"[Backend] port($port): ${seq.map(x => params.getExuName(x._1) + "(" + x._2.toString + ")").mkString(",")}") 145 } 146 147 println(s"[Backend] Dispatch Configs:") 148 println(s"[Backend] Load IQ enq width(${params.numLoadDp}), Store IQ enq width(${params.numStoreDp})") 149 println(s"[Backend] Load DP width(${LSQLdEnqWidth}), Store DP width(${LSQStEnqWidth})") 150 151 params.updateCopyPdestInfo 152 println(s"[Backend] copyPdestInfo ${params.copyPdestInfo}") 153 params.allExuParams.map(_.copyNum) 154 val ctrlBlock = LazyModule(new CtrlBlock(params)) 155 val pcTargetMem = LazyModule(new PcTargetMem(params)) 156 val intScheduler = params.intSchdParams.map(x => LazyModule(new Scheduler(x))) 157 val fpScheduler = params.fpSchdParams.map(x => LazyModule(new Scheduler(x))) 158 val vfScheduler = params.vfSchdParams.map(x => LazyModule(new Scheduler(x))) 159 val memScheduler = params.memSchdParams.map(x => LazyModule(new Scheduler(x))) 160 val dataPath = LazyModule(new DataPath(params)) 161 val intExuBlock = params.intSchdParams.map(x => LazyModule(new ExuBlock(x))) 162 val fpExuBlock = params.fpSchdParams.map(x => LazyModule(new ExuBlock(x))) 163 val vfExuBlock = params.vfSchdParams.map(x => LazyModule(new ExuBlock(x))) 164 val wbFuBusyTable = LazyModule(new WbFuBusyTable(params)) 165 166 lazy val module = new BackendImp(this) 167} 168 169class BackendImp(override val wrapper: Backend)(implicit p: Parameters) extends LazyModuleImp(wrapper) 170 with HasXSParameter { 171 implicit private val params: BackendParams = wrapper.params 172 173 val io = IO(new BackendIO()(p, wrapper.params)) 174 175 private val ctrlBlock = wrapper.ctrlBlock.module 176 private val pcTargetMem = wrapper.pcTargetMem.module 177 private val intScheduler: SchedulerImpBase = wrapper.intScheduler.get.module 178 private val fpScheduler = wrapper.fpScheduler.get.module 179 private val vfScheduler = wrapper.vfScheduler.get.module 180 private val memScheduler = wrapper.memScheduler.get.module 181 private val dataPath = wrapper.dataPath.module 182 private val intExuBlock = wrapper.intExuBlock.get.module 183 private val fpExuBlock = wrapper.fpExuBlock.get.module 184 private val vfExuBlock = wrapper.vfExuBlock.get.module 185 private val og2ForVector = Module(new Og2ForVector(params)) 186 private val bypassNetwork = Module(new BypassNetwork) 187 private val wbDataPath = Module(new WbDataPath(params)) 188 private val wbFuBusyTable = wrapper.wbFuBusyTable.module 189 190 private val iqWakeUpMappedBundle: Map[Int, ValidIO[IssueQueueIQWakeUpBundle]] = ( 191 intScheduler.io.toSchedulers.wakeupVec ++ 192 fpScheduler.io.toSchedulers.wakeupVec ++ 193 vfScheduler.io.toSchedulers.wakeupVec ++ 194 memScheduler.io.toSchedulers.wakeupVec 195 ).map(x => (x.bits.exuIdx, x)).toMap 196 197 println(s"[Backend] iq wake up keys: ${iqWakeUpMappedBundle.keys}") 198 199 wbFuBusyTable.io.in.intSchdBusyTable := intScheduler.io.wbFuBusyTable 200 wbFuBusyTable.io.in.fpSchdBusyTable := fpScheduler.io.wbFuBusyTable 201 wbFuBusyTable.io.in.vfSchdBusyTable := vfScheduler.io.wbFuBusyTable 202 wbFuBusyTable.io.in.memSchdBusyTable := memScheduler.io.wbFuBusyTable 203 intScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.intRespRead 204 fpScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.fpRespRead 205 vfScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.vfRespRead 206 memScheduler.io.fromWbFuBusyTable.fuBusyTableRead := wbFuBusyTable.io.out.memRespRead 207 dataPath.io.wbConfictRead := wbFuBusyTable.io.out.wbConflictRead 208 209 private val og1CancelOH: UInt = dataPath.io.og1CancelOH 210 private val og0CancelOH: UInt = dataPath.io.og0CancelOH 211 private val cancelToBusyTable = dataPath.io.cancelToBusyTable 212 private val vlIsZero = intExuBlock.io.vlIsZero.get 213 private val vlIsVlmax = intExuBlock.io.vlIsVlmax.get 214 215 ctrlBlock.io.intIQValidNumVec := intScheduler.io.intIQValidNumVec 216 ctrlBlock.io.fpIQValidNumVec := fpScheduler.io.fpIQValidNumVec 217 ctrlBlock.io.fromTop.hartId := io.fromTop.hartId 218 ctrlBlock.io.frontend <> io.frontend 219 ctrlBlock.io.fromWB.wbData <> wbDataPath.io.toCtrlBlock.writeback 220 ctrlBlock.io.fromMem.stIn <> io.mem.stIn 221 ctrlBlock.io.fromMem.violation <> io.mem.memoryViolation 222 ctrlBlock.io.lqCanAccept := io.mem.lqCanAccept 223 ctrlBlock.io.sqCanAccept := io.mem.sqCanAccept 224 ctrlBlock.io.csrCtrl <> intExuBlock.io.csrio.get.customCtrl 225 ctrlBlock.io.robio.csr.intrBitSet := intExuBlock.io.csrio.get.interrupt 226 ctrlBlock.io.robio.csr.trapTarget := intExuBlock.io.csrio.get.trapTarget 227 ctrlBlock.io.robio.csr.isXRet := intExuBlock.io.csrio.get.isXRet 228 ctrlBlock.io.robio.csr.wfiEvent := intExuBlock.io.csrio.get.wfi_event 229 ctrlBlock.io.robio.lsq <> io.mem.robLsqIO 230 ctrlBlock.io.robio.lsTopdownInfo <> io.mem.lsTopdownInfo 231 ctrlBlock.io.robio.debug_ls <> io.mem.debugLS 232 ctrlBlock.perfinfo := DontCare // TODO: Implement backend hpm 233 ctrlBlock.io.debugEnqLsq.canAccept := io.mem.lsqEnqIO.canAccept 234 ctrlBlock.io.debugEnqLsq.resp := io.mem.lsqEnqIO.resp 235 ctrlBlock.io.debugEnqLsq.req := memScheduler.io.memIO.get.lsqEnqIO.req 236 ctrlBlock.io.debugEnqLsq.needAlloc := memScheduler.io.memIO.get.lsqEnqIO.needAlloc 237 238 intScheduler.io.fromTop.hartId := io.fromTop.hartId 239 intScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 240 intScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 241 intScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.intUops 242 intScheduler.io.intWriteBack := wbDataPath.io.toIntPreg 243 intScheduler.io.fpWriteBack := 0.U.asTypeOf(intScheduler.io.fpWriteBack) 244 intScheduler.io.vfWriteBack := 0.U.asTypeOf(intScheduler.io.vfWriteBack) 245 intScheduler.io.v0WriteBack := 0.U.asTypeOf(intScheduler.io.v0WriteBack) 246 intScheduler.io.vlWriteBack := 0.U.asTypeOf(intScheduler.io.vlWriteBack) 247 intScheduler.io.fromDataPath.resp := dataPath.io.toIntIQ 248 intScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 249 intScheduler.io.fromDataPath.og0Cancel := og0CancelOH 250 intScheduler.io.fromDataPath.og1Cancel := og1CancelOH 251 intScheduler.io.ldCancel := io.mem.ldCancel 252 intScheduler.io.fromDataPath.cancelToBusyTable := cancelToBusyTable 253 intScheduler.io.vlWriteBackInfo.vlIsZero := false.B 254 intScheduler.io.vlWriteBackInfo.vlIsVlmax := false.B 255 256 fpScheduler.io.fromTop.hartId := io.fromTop.hartId 257 fpScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 258 fpScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 259 fpScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.fpUops 260 fpScheduler.io.intWriteBack := 0.U.asTypeOf(fpScheduler.io.intWriteBack) 261 fpScheduler.io.fpWriteBack := wbDataPath.io.toFpPreg 262 fpScheduler.io.vfWriteBack := 0.U.asTypeOf(fpScheduler.io.vfWriteBack) 263 fpScheduler.io.v0WriteBack := 0.U.asTypeOf(fpScheduler.io.v0WriteBack) 264 fpScheduler.io.vlWriteBack := 0.U.asTypeOf(fpScheduler.io.vlWriteBack) 265 fpScheduler.io.fromDataPath.resp := dataPath.io.toFpIQ 266 fpScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 267 fpScheduler.io.fromDataPath.og0Cancel := og0CancelOH 268 fpScheduler.io.fromDataPath.og1Cancel := og1CancelOH 269 fpScheduler.io.ldCancel := io.mem.ldCancel 270 fpScheduler.io.fromDataPath.cancelToBusyTable := cancelToBusyTable 271 fpScheduler.io.vlWriteBackInfo.vlIsZero := false.B 272 fpScheduler.io.vlWriteBackInfo.vlIsVlmax := false.B 273 274 memScheduler.io.fromTop.hartId := io.fromTop.hartId 275 memScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 276 memScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 277 memScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.memUops 278 memScheduler.io.intWriteBack := wbDataPath.io.toIntPreg 279 memScheduler.io.fpWriteBack := wbDataPath.io.toFpPreg 280 memScheduler.io.vfWriteBack := wbDataPath.io.toVfPreg 281 memScheduler.io.v0WriteBack := wbDataPath.io.toV0Preg 282 memScheduler.io.vlWriteBack := wbDataPath.io.toVlPreg 283 memScheduler.io.fromMem.get.scommit := io.mem.sqDeq 284 memScheduler.io.fromMem.get.lcommit := io.mem.lqDeq 285 memScheduler.io.fromMem.get.wakeup := io.mem.wakeup 286 memScheduler.io.fromMem.get.sqDeqPtr := io.mem.sqDeqPtr 287 memScheduler.io.fromMem.get.lqDeqPtr := io.mem.lqDeqPtr 288 memScheduler.io.fromMem.get.sqCancelCnt := io.mem.sqCancelCnt 289 memScheduler.io.fromMem.get.lqCancelCnt := io.mem.lqCancelCnt 290 memScheduler.io.fromMem.get.stIssuePtr := io.mem.stIssuePtr 291 require(memScheduler.io.fromMem.get.memWaitUpdateReq.robIdx.length == io.mem.stIn.length) 292 memScheduler.io.fromMem.get.memWaitUpdateReq.robIdx.zip(io.mem.stIn).foreach { case (sink, source) => 293 sink.valid := source.valid 294 sink.bits := source.bits.robIdx 295 } 296 memScheduler.io.fromMem.get.memWaitUpdateReq.sqIdx := DontCare // TODO 297 memScheduler.io.fromDataPath.resp := dataPath.io.toMemIQ 298 memScheduler.io.fromMem.get.ldaFeedback := io.mem.ldaIqFeedback 299 memScheduler.io.fromMem.get.staFeedback := io.mem.staIqFeedback 300 memScheduler.io.fromMem.get.hyuFeedback := io.mem.hyuIqFeedback 301 memScheduler.io.fromMem.get.vstuFeedback := io.mem.vstuIqFeedback 302 memScheduler.io.fromMem.get.vlduFeedback := io.mem.vlduIqFeedback 303 memScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 304 memScheduler.io.fromDataPath.og0Cancel := og0CancelOH 305 memScheduler.io.fromDataPath.og1Cancel := og1CancelOH 306 memScheduler.io.ldCancel := io.mem.ldCancel 307 memScheduler.io.fromDataPath.cancelToBusyTable := cancelToBusyTable 308 memScheduler.io.vlWriteBackInfo.vlIsZero := vlIsZero 309 memScheduler.io.vlWriteBackInfo.vlIsVlmax := vlIsVlmax 310 311 vfScheduler.io.fromTop.hartId := io.fromTop.hartId 312 vfScheduler.io.fromCtrlBlock.flush := ctrlBlock.io.toIssueBlock.flush 313 vfScheduler.io.fromDispatch.allocPregs <> ctrlBlock.io.toIssueBlock.allocPregs 314 vfScheduler.io.fromDispatch.uops <> ctrlBlock.io.toIssueBlock.vfUops 315 vfScheduler.io.intWriteBack := 0.U.asTypeOf(vfScheduler.io.intWriteBack) 316 vfScheduler.io.fpWriteBack := 0.U.asTypeOf(vfScheduler.io.fpWriteBack) 317 vfScheduler.io.vfWriteBack := wbDataPath.io.toVfPreg 318 vfScheduler.io.v0WriteBack := wbDataPath.io.toV0Preg 319 vfScheduler.io.vlWriteBack := wbDataPath.io.toVlPreg 320 vfScheduler.io.fromDataPath.resp := dataPath.io.toVfIQ 321 vfScheduler.io.fromSchedulers.wakeupVec.foreach { wakeup => wakeup := iqWakeUpMappedBundle(wakeup.bits.exuIdx) } 322 vfScheduler.io.fromDataPath.og0Cancel := og0CancelOH 323 vfScheduler.io.fromDataPath.og1Cancel := og1CancelOH 324 vfScheduler.io.ldCancel := io.mem.ldCancel 325 vfScheduler.io.fromDataPath.cancelToBusyTable := cancelToBusyTable 326 vfScheduler.io.vlWriteBackInfo.vlIsZero := vlIsZero 327 vfScheduler.io.vlWriteBackInfo.vlIsVlmax := vlIsVlmax 328 vfScheduler.io.fromOg2.get := og2ForVector.io.toVfIQ 329 330 dataPath.io.hartId := io.fromTop.hartId 331 dataPath.io.flush := ctrlBlock.io.toDataPath.flush 332 333 dataPath.io.fromIntIQ <> intScheduler.io.toDataPathAfterDelay 334 dataPath.io.fromFpIQ <> fpScheduler.io.toDataPathAfterDelay 335 dataPath.io.fromVfIQ <> vfScheduler.io.toDataPathAfterDelay 336 dataPath.io.fromMemIQ <> memScheduler.io.toDataPathAfterDelay 337 338 dataPath.io.ldCancel := io.mem.ldCancel 339 340 println(s"[Backend] wbDataPath.io.toIntPreg: ${wbDataPath.io.toIntPreg.size}, dataPath.io.fromIntWb: ${dataPath.io.fromIntWb.size}") 341 println(s"[Backend] wbDataPath.io.toVfPreg: ${wbDataPath.io.toVfPreg.size}, dataPath.io.fromFpWb: ${dataPath.io.fromVfWb.size}") 342 dataPath.io.fromIntWb := wbDataPath.io.toIntPreg 343 dataPath.io.fromFpWb := wbDataPath.io.toFpPreg 344 dataPath.io.fromVfWb := wbDataPath.io.toVfPreg 345 dataPath.io.fromV0Wb := wbDataPath.io.toV0Preg 346 dataPath.io.fromVlWb := wbDataPath.io.toVlPreg 347 dataPath.io.debugIntRat .foreach(_ := ctrlBlock.io.debug_int_rat.get) 348 dataPath.io.debugFpRat .foreach(_ := ctrlBlock.io.debug_fp_rat.get) 349 dataPath.io.debugVecRat .foreach(_ := ctrlBlock.io.debug_vec_rat.get) 350 dataPath.io.debugV0Rat .foreach(_ := ctrlBlock.io.debug_v0_rat.get) 351 dataPath.io.debugVlRat .foreach(_ := ctrlBlock.io.debug_vl_rat.get) 352 353 og2ForVector.io.flush := ctrlBlock.io.toDataPath.flush 354 og2ForVector.io.ldCancel := io.mem.ldCancel 355 og2ForVector.io.fromOg1NoReg <> dataPath.io.toVecExu 356 og2ForVector.io.fromOg1ImmInfo := dataPath.io.og1ImmInfo.zip(params.allExuParams).filter(_._2.isVfExeUnit).map(_._1) 357 358 bypassNetwork.io.fromDataPath.int <> dataPath.io.toIntExu 359 bypassNetwork.io.fromDataPath.fp <> dataPath.io.toFpExu 360 bypassNetwork.io.fromDataPath.vf <> og2ForVector.io.toVfExu 361 bypassNetwork.io.fromDataPath.mem <> dataPath.io.toMemExu 362 bypassNetwork.io.fromDataPath.immInfo := dataPath.io.og1ImmInfo 363 bypassNetwork.io.fromDataPath.immInfo.zip(params.allExuParams).filter(_._2.isVfExeUnit).map(_._1).zip(og2ForVector.io.toVfImmInfo).map{ 364 case (vfImmInfo, og2ImmInfo) => vfImmInfo := og2ImmInfo 365 } 366 bypassNetwork.io.fromExus.connectExuOutput(_.int)(intExuBlock.io.out) 367 bypassNetwork.io.fromExus.connectExuOutput(_.fp)(fpExuBlock.io.out) 368 bypassNetwork.io.fromExus.connectExuOutput(_.vf)(vfExuBlock.io.out) 369 370 require(bypassNetwork.io.fromExus.mem.flatten.size == io.mem.writeBack.size, 371 s"bypassNetwork.io.fromExus.mem.flatten.size(${bypassNetwork.io.fromExus.mem.flatten.size}: ${bypassNetwork.io.fromExus.mem.map(_.size)}, " + 372 s"io.mem.writeback(${io.mem.writeBack.size})" 373 ) 374 bypassNetwork.io.fromExus.mem.flatten.zip(io.mem.writeBack).foreach { case (sink, source) => 375 sink.valid := source.valid 376 sink.bits.pdest := source.bits.uop.pdest 377 sink.bits.data := source.bits.data 378 } 379 380 381 intExuBlock.io.flush := ctrlBlock.io.toExuBlock.flush 382 for (i <- 0 until intExuBlock.io.in.length) { 383 for (j <- 0 until intExuBlock.io.in(i).length) { 384 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.int(i)(j).bits.loadDependency, io.mem.ldCancel) 385 NewPipelineConnect( 386 bypassNetwork.io.toExus.int(i)(j), intExuBlock.io.in(i)(j), intExuBlock.io.in(i)(j).fire, 387 Mux( 388 bypassNetwork.io.toExus.int(i)(j).fire, 389 bypassNetwork.io.toExus.int(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 390 intExuBlock.io.in(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) 391 ), 392 Option("bypassNetwork2intExuBlock") 393 ) 394 } 395 } 396 397 pcTargetMem.io.fromFrontendFtq := io.frontend.fromFtq 398 pcTargetMem.io.toDataPath <> dataPath.io.fromPcTargetMem 399 400 private val csrin = intExuBlock.io.csrin.get 401 csrin.hartId := io.fromTop.hartId 402 csrin.msiInfo := io.fromTop.msiInfo 403 404 private val csrio = intExuBlock.io.csrio.get 405 csrio.hartId := io.fromTop.hartId 406 csrio.fpu.fflags := ctrlBlock.io.robio.csr.fflags 407 csrio.fpu.isIllegal := false.B // Todo: remove it 408 csrio.fpu.dirty_fs := ctrlBlock.io.robio.csr.dirty_fs 409 csrio.vpu <> WireDefault(0.U.asTypeOf(csrio.vpu)) // Todo 410 411 val fromIntExuVsetVType = intExuBlock.io.vtype.getOrElse(0.U.asTypeOf((Valid(new VType)))) 412 val fromVfExuVsetVType = vfExuBlock.io.vtype.getOrElse(0.U.asTypeOf((Valid(new VType)))) 413 val fromVsetVType = Mux(fromIntExuVsetVType.valid, fromIntExuVsetVType.bits, fromVfExuVsetVType.bits) 414 val vsetvlVType = RegEnable(fromVsetVType, 0.U.asTypeOf(new VType), fromIntExuVsetVType.valid || fromVfExuVsetVType.valid) 415 ctrlBlock.io.toDecode.vsetvlVType := vsetvlVType 416 417 val commitVType = ctrlBlock.io.robio.commitVType.vtype 418 val hasVsetvl = ctrlBlock.io.robio.commitVType.hasVsetvl 419 val vtype = VType.toVtypeStruct(Mux(hasVsetvl, vsetvlVType, commitVType.bits)).asUInt 420 421 // csr not store the value of vl, so when using difftest we assign the value of vl to debugVl 422 val debugVl_s0 = WireInit(UInt(VlData().dataWidth.W), 0.U) 423 val debugVl_s1 = WireInit(UInt(VlData().dataWidth.W), 0.U) 424 debugVl_s0 := dataPath.io.debugVl.getOrElse(0.U.asTypeOf(UInt(VlData().dataWidth.W))) 425 debugVl_s1 := RegNext(debugVl_s0) 426 csrio.vpu.set_vxsat := ctrlBlock.io.robio.csr.vxsat 427 csrio.vpu.set_vstart.valid := ctrlBlock.io.robio.csr.vstart.valid 428 csrio.vpu.set_vstart.bits := ctrlBlock.io.robio.csr.vstart.bits 429 ctrlBlock.io.toDecode.vstart := csrio.vpu.vstart 430 //Todo here need change design 431 csrio.vpu.set_vtype.valid := commitVType.valid 432 csrio.vpu.set_vtype.bits := ZeroExt(vtype, XLEN) 433 csrio.vpu.vl := ZeroExt(debugVl_s1, XLEN) 434 csrio.vpu.dirty_vs := ctrlBlock.io.robio.csr.dirty_vs 435 csrio.exception := ctrlBlock.io.robio.exception 436 csrio.memExceptionVAddr := io.mem.exceptionAddr.vaddr 437 csrio.memExceptionGPAddr := io.mem.exceptionAddr.gpaddr 438 csrio.externalInterrupt := io.fromTop.externalInterrupt 439 csrio.distributedUpdate(0) := io.mem.csrDistributedUpdate 440 csrio.distributedUpdate(1) := io.frontendCsrDistributedUpdate 441 csrio.perf <> io.perf 442 csrio.perf.retiredInstr <> ctrlBlock.io.robio.csr.perfinfo.retiredInstr 443 csrio.perf.ctrlInfo <> ctrlBlock.io.perfInfo.ctrlInfo 444 csrio.perf.perfEventsCtrl <> ctrlBlock.getPerf 445 private val fenceio = intExuBlock.io.fenceio.get 446 io.fenceio <> fenceio 447 fenceio.disableSfence := csrio.disableSfence 448 fenceio.disableHfenceg := csrio.disableHfenceg 449 fenceio.disableHfencev := csrio.disableHfencev 450 fenceio.virtMode := csrio.customCtrl.virtMode 451 452 // to fpExuBlock 453 fpExuBlock.io.flush := ctrlBlock.io.toExuBlock.flush 454 for (i <- 0 until fpExuBlock.io.in.length) { 455 for (j <- 0 until fpExuBlock.io.in(i).length) { 456 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.fp(i)(j).bits.loadDependency, io.mem.ldCancel) 457 NewPipelineConnect( 458 bypassNetwork.io.toExus.fp(i)(j), fpExuBlock.io.in(i)(j), fpExuBlock.io.in(i)(j).fire, 459 Mux( 460 bypassNetwork.io.toExus.fp(i)(j).fire, 461 bypassNetwork.io.toExus.fp(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 462 fpExuBlock.io.in(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) 463 ), 464 Option("bypassNetwork2fpExuBlock") 465 ) 466 } 467 } 468 469 vfExuBlock.io.flush := ctrlBlock.io.toExuBlock.flush 470 for (i <- 0 until vfExuBlock.io.in.size) { 471 for (j <- 0 until vfExuBlock.io.in(i).size) { 472 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.vf(i)(j).bits.loadDependency, io.mem.ldCancel) 473 NewPipelineConnect( 474 bypassNetwork.io.toExus.vf(i)(j), vfExuBlock.io.in(i)(j), vfExuBlock.io.in(i)(j).fire, 475 Mux( 476 bypassNetwork.io.toExus.vf(i)(j).fire, 477 bypassNetwork.io.toExus.vf(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 478 vfExuBlock.io.in(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) 479 ), 480 Option("bypassNetwork2vfExuBlock") 481 ) 482 483 } 484 } 485 486 intExuBlock.io.frm.foreach(_ := csrio.fpu.frm) 487 fpExuBlock.io.frm.foreach(_ := csrio.fpu.frm) 488 fpExuBlock.io.vxrm.foreach(_ := csrio.vpu.vxrm) 489 vfExuBlock.io.frm.foreach(_ := csrio.fpu.frm) 490 vfExuBlock.io.vxrm.foreach(_ := csrio.vpu.vxrm) 491 492 wbDataPath.io.flush := ctrlBlock.io.redirect 493 wbDataPath.io.fromTop.hartId := io.fromTop.hartId 494 wbDataPath.io.fromIntExu <> intExuBlock.io.out 495 wbDataPath.io.fromFpExu <> fpExuBlock.io.out 496 wbDataPath.io.fromVfExu <> vfExuBlock.io.out 497 wbDataPath.io.fromMemExu.flatten.zip(io.mem.writeBack).foreach { case (sink, source) => 498 sink.valid := source.valid 499 source.ready := sink.ready 500 sink.bits.data := VecInit(Seq.fill(sink.bits.params.wbPathNum)(source.bits.data)) 501 sink.bits.pdest := source.bits.uop.pdest 502 sink.bits.robIdx := source.bits.uop.robIdx 503 sink.bits.intWen.foreach(_ := source.bits.uop.rfWen) 504 sink.bits.fpWen.foreach(_ := source.bits.uop.fpWen) 505 sink.bits.vecWen.foreach(_ := source.bits.uop.vecWen) 506 sink.bits.v0Wen.foreach(_ := source.bits.uop.v0Wen) 507 sink.bits.vlWen.foreach(_ := source.bits.uop.vlWen) 508 sink.bits.exceptionVec.foreach(_ := source.bits.uop.exceptionVec) 509 sink.bits.flushPipe.foreach(_ := source.bits.uop.flushPipe) 510 sink.bits.replay.foreach(_ := source.bits.uop.replayInst) 511 sink.bits.debug := source.bits.debug 512 sink.bits.debugInfo := source.bits.uop.debugInfo 513 sink.bits.lqIdx.foreach(_ := source.bits.uop.lqIdx) 514 sink.bits.sqIdx.foreach(_ := source.bits.uop.sqIdx) 515 sink.bits.predecodeInfo.foreach(_ := source.bits.uop.preDecodeInfo) 516 sink.bits.vls.foreach(x => { 517 x.vdIdx := source.bits.vdIdx.get 518 x.vdIdxInField := source.bits.vdIdxInField.get 519 x.vpu := source.bits.uop.vpu 520 x.oldVdPsrc := source.bits.uop.psrc(2) 521 x.isIndexed := VlduType.isIndexed(source.bits.uop.fuOpType) 522 x.isMasked := VlduType.isMasked(source.bits.uop.fuOpType) 523 }) 524 sink.bits.trigger.foreach(_ := source.bits.uop.trigger) 525 } 526 527 // to mem 528 private val memIssueParams = params.memSchdParams.get.issueBlockParams 529 private val memExuBlocksHasLDU = memIssueParams.map(_.exuBlockParams.map(x => x.hasLoadFu || x.hasHyldaFu)) 530 private val memExuBlocksHasVecLoad = memIssueParams.map(_.exuBlockParams.map(x => x.hasVLoadFu)) 531 println(s"[Backend] memExuBlocksHasLDU: $memExuBlocksHasLDU") 532 println(s"[Backend] memExuBlocksHasVecLoad: $memExuBlocksHasVecLoad") 533 534 private val toMem = Wire(bypassNetwork.io.toExus.mem.cloneType) 535 for (i <- toMem.indices) { 536 for (j <- toMem(i).indices) { 537 val shouldLdCancel = LoadShouldCancel(bypassNetwork.io.toExus.mem(i)(j).bits.loadDependency, io.mem.ldCancel) 538 val issueTimeout = 539 if (memExuBlocksHasLDU(i)(j)) 540 Counter(0 until 16, toMem(i)(j).valid && !toMem(i)(j).fire, bypassNetwork.io.toExus.mem(i)(j).fire)._2 541 else 542 false.B 543 544 if (memScheduler.io.loadFinalIssueResp(i).nonEmpty && memExuBlocksHasLDU(i)(j)) { 545 memScheduler.io.loadFinalIssueResp(i)(j).valid := issueTimeout 546 memScheduler.io.loadFinalIssueResp(i)(j).bits.fuType := toMem(i)(j).bits.fuType 547 memScheduler.io.loadFinalIssueResp(i)(j).bits.resp := RespType.block 548 memScheduler.io.loadFinalIssueResp(i)(j).bits.robIdx := toMem(i)(j).bits.robIdx 549 memScheduler.io.loadFinalIssueResp(i)(j).bits.uopIdx.foreach(_ := toMem(i)(j).bits.vpu.get.vuopIdx) 550 memScheduler.io.loadFinalIssueResp(i)(j).bits.sqIdx.foreach(_ := toMem(i)(j).bits.sqIdx.get) 551 memScheduler.io.loadFinalIssueResp(i)(j).bits.lqIdx.foreach(_ := toMem(i)(j).bits.lqIdx.get) 552 } 553 554 NewPipelineConnect( 555 bypassNetwork.io.toExus.mem(i)(j), toMem(i)(j), toMem(i)(j).fire, 556 Mux( 557 bypassNetwork.io.toExus.mem(i)(j).fire, 558 bypassNetwork.io.toExus.mem(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || shouldLdCancel, 559 toMem(i)(j).bits.robIdx.needFlush(ctrlBlock.io.toExuBlock.flush) || issueTimeout 560 ), 561 Option("bypassNetwork2toMemExus") 562 ) 563 564 if (memScheduler.io.memAddrIssueResp(i).nonEmpty && memExuBlocksHasLDU(i)(j)) { 565 memScheduler.io.memAddrIssueResp(i)(j).valid := toMem(i)(j).fire && FuType.isLoad(toMem(i)(j).bits.fuType) 566 memScheduler.io.memAddrIssueResp(i)(j).bits.fuType := toMem(i)(j).bits.fuType 567 memScheduler.io.memAddrIssueResp(i)(j).bits.robIdx := toMem(i)(j).bits.robIdx 568 memScheduler.io.memAddrIssueResp(i)(j).bits.sqIdx.foreach(_ := toMem(i)(j).bits.sqIdx.get) 569 memScheduler.io.memAddrIssueResp(i)(j).bits.lqIdx.foreach(_ := toMem(i)(j).bits.lqIdx.get) 570 memScheduler.io.memAddrIssueResp(i)(j).bits.resp := RespType.success // for load inst, firing at toMem means issuing successfully 571 } 572 573 if (memScheduler.io.vecLoadIssueResp(i).nonEmpty && memExuBlocksHasVecLoad(i)(j)) { 574 memScheduler.io.vecLoadIssueResp(i)(j) match { 575 case resp => 576 resp.valid := toMem(i)(j).fire && VlduType.isVecLd(toMem(i)(j).bits.fuOpType) 577 resp.bits.fuType := toMem(i)(j).bits.fuType 578 resp.bits.robIdx := toMem(i)(j).bits.robIdx 579 resp.bits.uopIdx.get := toMem(i)(j).bits.vpu.get.vuopIdx 580 resp.bits.sqIdx.get := toMem(i)(j).bits.sqIdx.get 581 resp.bits.lqIdx.get := toMem(i)(j).bits.lqIdx.get 582 resp.bits.resp := RespType.success 583 } 584 if (backendParams.debugEn){ 585 dontTouch(memScheduler.io.vecLoadIssueResp(i)(j)) 586 } 587 } 588 } 589 } 590 591 io.mem.redirect := ctrlBlock.io.redirect 592 io.mem.issueUops.zip(toMem.flatten).foreach { case (sink, source) => 593 val enableMdp = Constantin.createRecord("EnableMdp", true) 594 sink.valid := source.valid 595 source.ready := sink.ready 596 sink.bits.iqIdx := source.bits.iqIdx 597 sink.bits.isFirstIssue := source.bits.isFirstIssue 598 sink.bits.uop := 0.U.asTypeOf(sink.bits.uop) 599 sink.bits.src := 0.U.asTypeOf(sink.bits.src) 600 sink.bits.src.zip(source.bits.src).foreach { case (l, r) => l := r} 601 sink.bits.uop.fuType := source.bits.fuType 602 sink.bits.uop.fuOpType := source.bits.fuOpType 603 sink.bits.uop.imm := source.bits.imm 604 sink.bits.uop.robIdx := source.bits.robIdx 605 sink.bits.uop.pdest := source.bits.pdest 606 sink.bits.uop.rfWen := source.bits.rfWen.getOrElse(false.B) 607 sink.bits.uop.fpWen := source.bits.fpWen.getOrElse(false.B) 608 sink.bits.uop.vecWen := source.bits.vecWen.getOrElse(false.B) 609 sink.bits.uop.v0Wen := source.bits.v0Wen.getOrElse(false.B) 610 sink.bits.uop.vlWen := source.bits.vlWen.getOrElse(false.B) 611 sink.bits.uop.flushPipe := source.bits.flushPipe.getOrElse(false.B) 612 sink.bits.uop.pc := source.bits.pc.getOrElse(0.U) 613 sink.bits.uop.loadWaitBit := Mux(enableMdp, source.bits.loadWaitBit.getOrElse(false.B), false.B) 614 sink.bits.uop.waitForRobIdx := Mux(enableMdp, source.bits.waitForRobIdx.getOrElse(0.U.asTypeOf(new RobPtr)), 0.U.asTypeOf(new RobPtr)) 615 sink.bits.uop.storeSetHit := Mux(enableMdp, source.bits.storeSetHit.getOrElse(false.B), false.B) 616 sink.bits.uop.loadWaitStrict := Mux(enableMdp, source.bits.loadWaitStrict.getOrElse(false.B), false.B) 617 sink.bits.uop.ssid := Mux(enableMdp, source.bits.ssid.getOrElse(0.U(SSIDWidth.W)), 0.U(SSIDWidth.W)) 618 sink.bits.uop.lqIdx := source.bits.lqIdx.getOrElse(0.U.asTypeOf(new LqPtr)) 619 sink.bits.uop.sqIdx := source.bits.sqIdx.getOrElse(0.U.asTypeOf(new SqPtr)) 620 sink.bits.uop.ftqPtr := source.bits.ftqIdx.getOrElse(0.U.asTypeOf(new FtqPtr)) 621 sink.bits.uop.ftqOffset := source.bits.ftqOffset.getOrElse(0.U) 622 sink.bits.uop.debugInfo := source.bits.perfDebugInfo 623 sink.bits.uop.vpu := source.bits.vpu.getOrElse(0.U.asTypeOf(new VPUCtrlSignals)) 624 sink.bits.uop.preDecodeInfo := source.bits.preDecode.getOrElse(0.U.asTypeOf(new PreDecodeInfo)) 625 sink.bits.uop.numLsElem := source.bits.numLsElem.getOrElse(0.U) // Todo: remove this bundle, keep only the one below 626 sink.bits.flowNum.foreach(_ := source.bits.numLsElem.get) 627 } 628 io.mem.loadFastMatch := memScheduler.io.toMem.get.loadFastMatch.map(_.fastMatch) 629 io.mem.loadFastImm := memScheduler.io.toMem.get.loadFastMatch.map(_.fastImm) 630 io.mem.tlbCsr := csrio.tlb 631 io.mem.csrCtrl := csrio.customCtrl 632 io.mem.sfence := fenceio.sfence 633 io.mem.isStoreException := CommitType.lsInstIsStore(ctrlBlock.io.robio.exception.bits.commitType) 634 io.mem.isVlsException := ctrlBlock.io.robio.exception.bits.vls 635 require(io.mem.loadPcRead.size == params.LduCnt) 636 io.mem.loadPcRead.zipWithIndex.foreach { case (loadPcRead, i) => 637 loadPcRead := ctrlBlock.io.memLdPcRead(i).data 638 ctrlBlock.io.memLdPcRead(i).vld := io.mem.issueLda(i).valid 639 ctrlBlock.io.memLdPcRead(i).ptr := io.mem.issueLda(i).bits.uop.ftqPtr 640 ctrlBlock.io.memLdPcRead(i).offset := io.mem.issueLda(i).bits.uop.ftqOffset 641 } 642 643 io.mem.storePcRead.zipWithIndex.foreach { case (storePcRead, i) => 644 storePcRead := ctrlBlock.io.memStPcRead(i).data 645 ctrlBlock.io.memStPcRead(i).vld := io.mem.issueSta(i).valid 646 ctrlBlock.io.memStPcRead(i).ptr := io.mem.issueSta(i).bits.uop.ftqPtr 647 ctrlBlock.io.memStPcRead(i).offset := io.mem.issueSta(i).bits.uop.ftqOffset 648 } 649 650 io.mem.hyuPcRead.zipWithIndex.foreach( { case (hyuPcRead, i) => 651 hyuPcRead := ctrlBlock.io.memHyPcRead(i).data 652 ctrlBlock.io.memHyPcRead(i).vld := io.mem.issueHylda(i).valid 653 ctrlBlock.io.memHyPcRead(i).ptr := io.mem.issueHylda(i).bits.uop.ftqPtr 654 ctrlBlock.io.memHyPcRead(i).offset := io.mem.issueHylda(i).bits.uop.ftqOffset 655 }) 656 657 ctrlBlock.io.robio.robHeadLsIssue := io.mem.issueUops.map(deq => deq.fire && deq.bits.uop.robIdx === ctrlBlock.io.robio.robDeqPtr).reduce(_ || _) 658 659 // mem io 660 io.mem.lsqEnqIO <> memScheduler.io.memIO.get.lsqEnqIO 661 io.mem.robLsqIO <> ctrlBlock.io.robio.lsq 662 663 io.frontendSfence := fenceio.sfence 664 io.frontendTlbCsr := csrio.tlb 665 io.frontendCsrCtrl := csrio.customCtrl 666 667 io.tlb <> csrio.tlb 668 669 io.csrCustomCtrl := csrio.customCtrl 670 671 io.toTop.cpuHalted := false.B // TODO: implement cpu halt 672 673 io.debugTopDown.fromRob := ctrlBlock.io.debugTopDown.fromRob 674 ctrlBlock.io.debugTopDown.fromCore := io.debugTopDown.fromCore 675 676 io.debugRolling := ctrlBlock.io.debugRolling 677 678 if(backendParams.debugEn) { 679 dontTouch(memScheduler.io) 680 dontTouch(dataPath.io.toMemExu) 681 dontTouch(wbDataPath.io.fromMemExu) 682 } 683} 684 685class BackendMemIO(implicit p: Parameters, params: BackendParams) extends XSBundle { 686 // Since fast load replay always use load unit 0, Backend flips two load port to avoid conflicts 687 val flippedLda = true 688 // params alias 689 private val LoadQueueSize = VirtualLoadQueueSize 690 // In/Out // Todo: split it into one-direction bundle 691 val lsqEnqIO = Flipped(new LsqEnqIO) 692 val robLsqIO = new RobLsqIO 693 val ldaIqFeedback = Vec(params.LduCnt, Flipped(new MemRSFeedbackIO)) 694 val staIqFeedback = Vec(params.StaCnt, Flipped(new MemRSFeedbackIO)) 695 val hyuIqFeedback = Vec(params.HyuCnt, Flipped(new MemRSFeedbackIO)) 696 val vstuIqFeedback = Flipped(Vec(params.VstuCnt, new MemRSFeedbackIO(isVector = true))) 697 val vlduIqFeedback = Flipped(Vec(params.VlduCnt, new MemRSFeedbackIO(isVector = true))) 698 val ldCancel = Vec(params.LdExuCnt, Flipped(new LoadCancelIO)) 699 val wakeup = Vec(params.LdExuCnt, Flipped(Valid(new DynInst))) 700 val loadPcRead = Vec(params.LduCnt, Output(UInt(VAddrBits.W))) 701 val storePcRead = Vec(params.StaCnt, Output(UInt(VAddrBits.W))) 702 val hyuPcRead = Vec(params.HyuCnt, Output(UInt(VAddrBits.W))) 703 // Input 704 val writebackLda = Vec(params.LduCnt, Flipped(DecoupledIO(new MemExuOutput))) 705 val writebackSta = Vec(params.StaCnt, Flipped(DecoupledIO(new MemExuOutput))) 706 val writebackStd = Vec(params.StdCnt, Flipped(DecoupledIO(new MemExuOutput))) 707 val writebackHyuLda = Vec(params.HyuCnt, Flipped(DecoupledIO(new MemExuOutput))) 708 val writebackHyuSta = Vec(params.HyuCnt, Flipped(DecoupledIO(new MemExuOutput))) 709 val writebackVldu = Vec(params.VlduCnt, Flipped(DecoupledIO(new MemExuOutput(true)))) 710 711 val s3_delayed_load_error = Input(Vec(LoadPipelineWidth, Bool())) 712 val stIn = Input(Vec(params.StaExuCnt, ValidIO(new DynInst()))) 713 val memoryViolation = Flipped(ValidIO(new Redirect)) 714 val exceptionAddr = Input(new Bundle { 715 val vaddr = UInt(VAddrBits.W) 716 val gpaddr = UInt(GPAddrBits.W) 717 }) 718 val sqDeq = Input(UInt(log2Ceil(EnsbufferWidth + 1).W)) 719 val lqDeq = Input(UInt(log2Up(CommitWidth + 1).W)) 720 val sqDeqPtr = Input(new SqPtr) 721 val lqDeqPtr = Input(new LqPtr) 722 723 val lqCancelCnt = Input(UInt(log2Up(VirtualLoadQueueSize + 1).W)) 724 val sqCancelCnt = Input(UInt(log2Up(StoreQueueSize + 1).W)) 725 726 val lqCanAccept = Input(Bool()) 727 val sqCanAccept = Input(Bool()) 728 729 val otherFastWakeup = Flipped(Vec(params.LduCnt + params.HyuCnt, ValidIO(new DynInst))) 730 val stIssuePtr = Input(new SqPtr()) 731 732 val csrDistributedUpdate = Flipped(new DistributedCSRUpdateReq) 733 734 val debugLS = Flipped(Output(new DebugLSIO)) 735 736 val lsTopdownInfo = Vec(params.LduCnt + params.HyuCnt, Flipped(Output(new LsTopdownInfo))) 737 // Output 738 val redirect = ValidIO(new Redirect) // rob flush MemBlock 739 val issueLda = MixedVec(Seq.fill(params.LduCnt)(DecoupledIO(new MemExuInput()))) 740 val issueSta = MixedVec(Seq.fill(params.StaCnt)(DecoupledIO(new MemExuInput()))) 741 val issueStd = MixedVec(Seq.fill(params.StdCnt)(DecoupledIO(new MemExuInput()))) 742 val issueHylda = MixedVec(Seq.fill(params.HyuCnt)(DecoupledIO(new MemExuInput()))) 743 val issueHysta = MixedVec(Seq.fill(params.HyuCnt)(DecoupledIO(new MemExuInput()))) 744 val issueVldu = MixedVec(Seq.fill(params.VlduCnt)(DecoupledIO(new MemExuInput(true)))) 745 746 val loadFastMatch = Vec(params.LduCnt, Output(UInt(params.LduCnt.W))) 747 val loadFastImm = Vec(params.LduCnt, Output(UInt(12.W))) // Imm_I 748 749 val tlbCsr = Output(new TlbCsrBundle) 750 val csrCtrl = Output(new CustomCSRCtrlIO) 751 val sfence = Output(new SfenceBundle) 752 val isStoreException = Output(Bool()) 753 val isVlsException = Output(Bool()) 754 755 // ATTENTION: The issue ports' sequence order should be the same as IQs' deq config 756 private [backend] def issueUops: Seq[DecoupledIO[MemExuInput]] = { 757 issueSta ++ 758 issueHylda ++ issueHysta ++ 759 issueLda ++ 760 issueVldu ++ 761 issueStd 762 }.toSeq 763 764 // ATTENTION: The writeback ports' sequence order should be the same as IQs' deq config 765 private [backend] def writeBack: Seq[DecoupledIO[MemExuOutput]] = { 766 writebackSta ++ 767 writebackHyuLda ++ writebackHyuSta ++ 768 writebackLda ++ 769 writebackVldu ++ 770 writebackStd 771 } 772} 773 774class BackendIO(implicit p: Parameters, params: BackendParams) extends XSBundle with HasSoCParameter { 775 val fromTop = new Bundle { 776 val hartId = Input(UInt(hartIdLen.W)) 777 val externalInterrupt = new ExternalInterruptIO 778 val msiInfo = Input(ValidIO(new MsiInfoBundle)) 779 } 780 781 val toTop = new Bundle { 782 val cpuHalted = Output(Bool()) 783 } 784 785 val fenceio = new FenceIO 786 // Todo: merge these bundles into BackendFrontendIO 787 val frontend = Flipped(new FrontendToCtrlIO) 788 val frontendSfence = Output(new SfenceBundle) 789 val frontendCsrCtrl = Output(new CustomCSRCtrlIO) 790 val frontendTlbCsr = Output(new TlbCsrBundle) 791 // distributed csr write 792 val frontendCsrDistributedUpdate = Flipped(new DistributedCSRUpdateReq) 793 794 val mem = new BackendMemIO 795 796 val perf = Input(new PerfCounterIO) 797 798 val tlb = Output(new TlbCsrBundle) 799 800 val csrCustomCtrl = Output(new CustomCSRCtrlIO) 801 802 val debugTopDown = new Bundle { 803 val fromRob = new RobCoreTopDownIO 804 val fromCore = new CoreDispatchTopDownIO 805 } 806 val debugRolling = new RobDebugRollingIO 807} 808