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 18 19import org.chipsalliance.cde.config 20import org.chipsalliance.cde.config.Parameters 21import chisel3._ 22import chisel3.util._ 23import device.MsiInfoBundle 24import freechips.rocketchip.diplomacy.{BundleBridgeSource, LazyModule, LazyModuleImp} 25import freechips.rocketchip.tile.HasFPUParameters 26import system.HasSoCParameter 27import utils._ 28import utility._ 29import xiangshan.backend._ 30import xiangshan.backend.fu.PMPRespBundle 31import xiangshan.backend.trace.TraceCoreInterface 32import xiangshan.cache.mmu._ 33import xiangshan.frontend._ 34import xiangshan.mem.L1PrefetchFuzzer 35import scala.collection.mutable.ListBuffer 36import xiangshan.cache.mmu.TlbRequestIO 37 38abstract class XSModule(implicit val p: Parameters) extends Module 39 with HasXSParameter 40 with HasFPUParameters 41 42//remove this trait after impl module logic 43trait NeedImpl { 44 this: RawModule => 45 protected def IO[T <: Data](iodef: T): T = { 46 println(s"[Warn]: (${this.name}) please reomve 'NeedImpl' after implement this module") 47 val io = chisel3.IO(iodef) 48 io <> DontCare 49 io 50 } 51} 52 53abstract class XSBundle(implicit val p: Parameters) extends Bundle 54 with HasXSParameter 55 56abstract class XSCoreBase()(implicit p: config.Parameters) extends LazyModule 57 with HasXSParameter 58{ 59 override def shouldBeInlined: Boolean = false 60 // outer facing nodes 61 val frontend = LazyModule(new Frontend()) 62 val csrOut = BundleBridgeSource(Some(() => new DistributedCSRIO())) 63 val backend = LazyModule(new Backend(backendParams)) 64 65 val memBlock = LazyModule(new MemBlock) 66 67 memBlock.inner.frontendBridge.icache_node := frontend.inner.icache.clientNode 68 memBlock.inner.frontendBridge.instr_uncache_node := frontend.inner.instrUncache.clientNode 69 if (icacheParameters.cacheCtrlAddressOpt.nonEmpty) { 70 frontend.inner.icache.ctrlUnitOpt.get.node := memBlock.inner.frontendBridge.icachectrl_node 71 } 72} 73 74class XSCore()(implicit p: config.Parameters) extends XSCoreBase 75 with HasXSDts 76{ 77 lazy val module = new XSCoreImp(this) 78} 79 80class XSCoreImp(outer: XSCoreBase) extends LazyModuleImp(outer) 81 with HasXSParameter 82 with HasSoCParameter { 83 val io = IO(new Bundle { 84 val hartId = Input(UInt(hartIdLen.W)) 85 val msiInfo = Input(ValidIO(new MsiInfoBundle)) 86 val clintTime = Input(ValidIO(UInt(64.W))) 87 val reset_vector = Input(UInt(PAddrBits.W)) 88 val cpu_halt = Output(Bool()) 89 val cpu_critical_error = Output(Bool()) 90 val resetInFrontend = Output(Bool()) 91 val traceCoreInterface = new TraceCoreInterface 92 val l2_pf_enable = Output(Bool()) 93 val perfEvents = Input(Vec(numPCntHc * coreParams.L2NBanks + 1, new PerfEvent)) 94 val beu_errors = Output(new XSL1BusErrors()) 95 val l2_hint = Input(Valid(new L2ToL1Hint())) 96 val l2_tlb_req = Flipped(new TlbRequestIO(nRespDups = 2)) 97 val l2_pmp_resp = new PMPRespBundle 98 val l2PfqBusy = Input(Bool()) 99 val debugTopDown = new Bundle { 100 val robTrueCommit = Output(UInt(64.W)) 101 val robHeadPaddr = Valid(UInt(PAddrBits.W)) 102 val l2MissMatch = Input(Bool()) 103 val l3MissMatch = Input(Bool()) 104 } 105 }) 106 107 println(s"FPGAPlatform:${env.FPGAPlatform} EnableDebug:${env.EnableDebug}") 108 109 val frontend = outer.frontend.module 110 val backend = outer.backend.module 111 val memBlock = outer.memBlock.module 112 113 frontend.io.hartId := memBlock.io.inner_hartId 114 frontend.io.reset_vector := memBlock.io.inner_reset_vector 115 frontend.io.softPrefetch <> memBlock.io.ifetchPrefetch 116 frontend.io.backend <> backend.io.frontend 117 frontend.io.sfence <> backend.io.frontendSfence 118 frontend.io.tlbCsr <> backend.io.frontendTlbCsr 119 frontend.io.csrCtrl <> backend.io.frontendCsrCtrl 120 frontend.io.fencei <> backend.io.fenceio.fencei 121 122 backend.io.fromTop := memBlock.io.mem_to_ooo.topToBackendBypass 123 124 require(backend.io.mem.stIn.length == memBlock.io.mem_to_ooo.stIn.length) 125 backend.io.mem.stIn.zip(memBlock.io.mem_to_ooo.stIn).foreach { case (sink, source) => 126 sink.valid := source.valid 127 sink.bits := 0.U.asTypeOf(sink.bits) 128 sink.bits.robIdx := source.bits.uop.robIdx 129 sink.bits.ssid := source.bits.uop.ssid 130 sink.bits.storeSetHit := source.bits.uop.storeSetHit 131 // The other signals have not been used 132 } 133 backend.io.mem.memoryViolation := memBlock.io.mem_to_ooo.memoryViolation 134 backend.io.mem.lsqEnqIO <> memBlock.io.ooo_to_mem.enqLsq 135 backend.io.mem.sqDeq := memBlock.io.mem_to_ooo.sqDeq 136 backend.io.mem.lqDeq := memBlock.io.mem_to_ooo.lqDeq 137 backend.io.mem.sqDeqPtr := memBlock.io.mem_to_ooo.sqDeqPtr 138 backend.io.mem.lqDeqPtr := memBlock.io.mem_to_ooo.lqDeqPtr 139 backend.io.mem.lqCancelCnt := memBlock.io.mem_to_ooo.lqCancelCnt 140 backend.io.mem.sqCancelCnt := memBlock.io.mem_to_ooo.sqCancelCnt 141 backend.io.mem.otherFastWakeup := memBlock.io.mem_to_ooo.otherFastWakeup 142 backend.io.mem.stIssuePtr := memBlock.io.mem_to_ooo.stIssuePtr 143 backend.io.mem.ldaIqFeedback := memBlock.io.mem_to_ooo.ldaIqFeedback 144 backend.io.mem.staIqFeedback := memBlock.io.mem_to_ooo.staIqFeedback 145 backend.io.mem.hyuIqFeedback := memBlock.io.mem_to_ooo.hyuIqFeedback 146 backend.io.mem.vstuIqFeedback := memBlock.io.mem_to_ooo.vstuIqFeedback 147 backend.io.mem.vlduIqFeedback := memBlock.io.mem_to_ooo.vlduIqFeedback 148 backend.io.mem.ldCancel := memBlock.io.mem_to_ooo.ldCancel 149 backend.io.mem.wakeup := memBlock.io.mem_to_ooo.wakeup 150 backend.io.mem.writebackLda <> memBlock.io.mem_to_ooo.writebackLda 151 backend.io.mem.writebackSta <> memBlock.io.mem_to_ooo.writebackSta 152 backend.io.mem.writebackHyuLda <> memBlock.io.mem_to_ooo.writebackHyuLda 153 backend.io.mem.writebackHyuSta <> memBlock.io.mem_to_ooo.writebackHyuSta 154 backend.io.mem.writebackStd <> memBlock.io.mem_to_ooo.writebackStd 155 backend.io.mem.writebackVldu <> memBlock.io.mem_to_ooo.writebackVldu 156 backend.io.mem.robLsqIO.mmio := memBlock.io.mem_to_ooo.lsqio.mmio 157 backend.io.mem.robLsqIO.uop := memBlock.io.mem_to_ooo.lsqio.uop 158 159 // memblock error exception writeback, 1 cycle after normal writeback 160 backend.io.mem.s3_delayed_load_error := memBlock.io.mem_to_ooo.s3_delayed_load_error 161 162 backend.io.mem.exceptionAddr.vaddr := memBlock.io.mem_to_ooo.lsqio.vaddr 163 backend.io.mem.exceptionAddr.gpaddr := memBlock.io.mem_to_ooo.lsqio.gpaddr 164 backend.io.mem.exceptionAddr.isForVSnonLeafPTE := memBlock.io.mem_to_ooo.lsqio.isForVSnonLeafPTE 165 backend.io.mem.debugLS := memBlock.io.debug_ls 166 backend.io.mem.lsTopdownInfo := memBlock.io.mem_to_ooo.lsTopdownInfo 167 backend.io.mem.lqCanAccept := memBlock.io.mem_to_ooo.lsqio.lqCanAccept 168 backend.io.mem.sqCanAccept := memBlock.io.mem_to_ooo.lsqio.sqCanAccept 169 backend.io.fenceio.sbuffer.sbIsEmpty := memBlock.io.mem_to_ooo.sbIsEmpty 170 171 backend.io.perf.frontendInfo := frontend.io.frontendInfo 172 backend.io.perf.memInfo := memBlock.io.memInfo 173 backend.io.perf.perfEventsFrontend := frontend.io_perf 174 backend.io.perf.perfEventsLsu := memBlock.io_perf 175 backend.io.perf.perfEventsHc := memBlock.io.inner_hc_perfEvents 176 backend.io.perf.perfEventsBackend := DontCare 177 backend.io.perf.retiredInstr := DontCare 178 backend.io.perf.ctrlInfo := DontCare 179 180 backend.io.mem.storeDebugInfo <> memBlock.io.mem_to_ooo.storeDebugInfo 181 182 // top -> memBlock 183 memBlock.io.fromTopToBackend.clintTime := io.clintTime 184 memBlock.io.fromTopToBackend.msiInfo := io.msiInfo 185 memBlock.io.hartId := io.hartId 186 memBlock.io.outer_reset_vector := io.reset_vector 187 memBlock.io.outer_hc_perfEvents := io.perfEvents 188 // frontend -> memBlock 189 memBlock.io.inner_beu_errors_icache <> frontend.io.error.bits.toL1BusErrorUnitInfo(frontend.io.error.valid) 190 memBlock.io.inner_l2_pf_enable := backend.io.csrCustomCtrl.l2_pf_enable 191 memBlock.io.ooo_to_mem.backendToTopBypass := backend.io.toTop 192 memBlock.io.ooo_to_mem.issueLda <> backend.io.mem.issueLda 193 memBlock.io.ooo_to_mem.issueSta <> backend.io.mem.issueSta 194 memBlock.io.ooo_to_mem.issueStd <> backend.io.mem.issueStd 195 memBlock.io.ooo_to_mem.issueHya <> backend.io.mem.issueHylda 196 backend.io.mem.issueHysta.foreach(_.ready := false.B) // this fake port should not be used 197 memBlock.io.ooo_to_mem.issueVldu <> backend.io.mem.issueVldu 198 199 // By default, instructions do not have exceptions when they enter the function units. 200 memBlock.io.ooo_to_mem.issueUops.map(_.bits.uop.clearExceptions()) 201 memBlock.io.ooo_to_mem.storePc := backend.io.mem.storePcRead 202 memBlock.io.ooo_to_mem.hybridPc := backend.io.mem.hyuPcRead 203 memBlock.io.ooo_to_mem.flushSb := backend.io.fenceio.sbuffer.flushSb 204 memBlock.io.ooo_to_mem.loadFastMatch := 0.U.asTypeOf(memBlock.io.ooo_to_mem.loadFastMatch) 205 memBlock.io.ooo_to_mem.loadFastImm := 0.U.asTypeOf(memBlock.io.ooo_to_mem.loadFastImm) 206 memBlock.io.ooo_to_mem.loadFastFuOpType := 0.U.asTypeOf(memBlock.io.ooo_to_mem.loadFastFuOpType) 207 208 memBlock.io.ooo_to_mem.sfence <> backend.io.mem.sfence 209 210 memBlock.io.redirect := backend.io.mem.redirect 211 memBlock.io.ooo_to_mem.csrCtrl := backend.io.mem.csrCtrl 212 memBlock.io.ooo_to_mem.tlbCsr := backend.io.mem.tlbCsr 213 memBlock.io.ooo_to_mem.lsqio.lcommit := backend.io.mem.robLsqIO.lcommit 214 memBlock.io.ooo_to_mem.lsqio.scommit := backend.io.mem.robLsqIO.scommit 215 memBlock.io.ooo_to_mem.lsqio.pendingMMIOld := backend.io.mem.robLsqIO.pendingMMIOld 216 memBlock.io.ooo_to_mem.lsqio.pendingld := backend.io.mem.robLsqIO.pendingld 217 memBlock.io.ooo_to_mem.lsqio.pendingst := backend.io.mem.robLsqIO.pendingst 218 memBlock.io.ooo_to_mem.lsqio.pendingVst := backend.io.mem.robLsqIO.pendingVst 219 memBlock.io.ooo_to_mem.lsqio.commit := backend.io.mem.robLsqIO.commit 220 memBlock.io.ooo_to_mem.lsqio.pendingPtr := backend.io.mem.robLsqIO.pendingPtr 221 memBlock.io.ooo_to_mem.lsqio.pendingPtrNext := backend.io.mem.robLsqIO.pendingPtrNext 222 memBlock.io.ooo_to_mem.isStoreException := backend.io.mem.isStoreException 223 memBlock.io.ooo_to_mem.isVlsException := backend.io.mem.isVlsException 224 225 memBlock.io.fetch_to_mem.itlb <> frontend.io.ptw 226 memBlock.io.l2_hint.valid := io.l2_hint.valid 227 memBlock.io.l2_hint.bits.sourceId := io.l2_hint.bits.sourceId 228 memBlock.io.l2_tlb_req <> io.l2_tlb_req 229 memBlock.io.l2_pmp_resp <> io.l2_pmp_resp 230 memBlock.io.l2_hint.bits.isKeyword := io.l2_hint.bits.isKeyword 231 memBlock.io.l2PfqBusy := io.l2PfqBusy 232 233 // if l2 prefetcher use stream prefetch, it should be placed in XSCore 234 235 // top-down info 236 memBlock.io.debugTopDown.robHeadVaddr := backend.io.debugTopDown.fromRob.robHeadVaddr 237 frontend.io.debugTopDown.robHeadVaddr := backend.io.debugTopDown.fromRob.robHeadVaddr 238 io.debugTopDown.robHeadPaddr := backend.io.debugTopDown.fromRob.robHeadPaddr 239 io.debugTopDown.robTrueCommit := backend.io.debugRolling.robTrueCommit 240 backend.io.debugTopDown.fromCore.l2MissMatch := io.debugTopDown.l2MissMatch 241 backend.io.debugTopDown.fromCore.l3MissMatch := io.debugTopDown.l3MissMatch 242 backend.io.debugTopDown.fromCore.fromMem := memBlock.io.debugTopDown.toCore 243 memBlock.io.debugRolling := backend.io.debugRolling 244 245 io.cpu_halt := memBlock.io.outer_cpu_halt 246 io.cpu_critical_error := memBlock.io.outer_cpu_critical_error 247 io.beu_errors.icache <> memBlock.io.outer_beu_errors_icache 248 io.beu_errors.dcache <> memBlock.io.error.bits.toL1BusErrorUnitInfo(memBlock.io.error.valid) 249 io.beu_errors.l2 <> DontCare 250 io.l2_pf_enable := memBlock.io.outer_l2_pf_enable 251 252 memBlock.io.resetInFrontendBypass.fromFrontend := frontend.io.resetInFrontend 253 io.resetInFrontend := memBlock.io.resetInFrontendBypass.toL2Top 254 memBlock.io.traceCoreInterfaceBypass.fromBackend <> backend.io.traceCoreInterface 255 io.traceCoreInterface <> memBlock.io.traceCoreInterfaceBypass.toL2Top 256 257 258 if (debugOpts.ResetGen) { 259 backend.reset := memBlock.io.reset_backend 260 frontend.reset := backend.io.frontendReset 261 } 262} 263