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.{Field, Parameters} 20import chisel3._ 21import chisel3.util._ 22import huancun._ 23import system.SoCParamsKey 24import xiangshan.backend.datapath.RdConfig._ 25import xiangshan.backend.datapath.WbConfig._ 26import xiangshan.backend.dispatch.DispatchParameters 27import xiangshan.backend.exu.ExeUnitParams 28import xiangshan.backend.fu.FuConfig._ 29import xiangshan.backend.issue.{IntScheduler, IssueBlockParams, MemScheduler, SchdBlockParams, SchedulerType, VfScheduler} 30import xiangshan.backend.regfile.{IntPregParams, PregParams, VfPregParams} 31import xiangshan.backend.BackendParams 32import xiangshan.cache.DCacheParameters 33import xiangshan.cache.prefetch._ 34import xiangshan.frontend.{BasePredictor, BranchPredictionResp, FTB, FakePredictor, RAS, Tage, ITTage, Tage_SC, FauFTB} 35import xiangshan.frontend.icache.ICacheParameters 36import xiangshan.cache.mmu.{L2TLBParameters, TLBParameters} 37import xiangshan.frontend._ 38import xiangshan.frontend.icache.ICacheParameters 39 40import freechips.rocketchip.diplomacy.AddressSet 41import system.SoCParamsKey 42import huancun._ 43import huancun.debug._ 44import xiangshan.cache.wpu.WPUParameters 45import coupledL2._ 46import xiangshan.backend.datapath.WakeUpConfig 47import xiangshan.mem.prefetch.{PrefetcherParams, SMSParams} 48 49import scala.math.min 50 51case object XSTileKey extends Field[Seq[XSCoreParameters]] 52 53case object XSCoreParamsKey extends Field[XSCoreParameters] 54 55case class XSCoreParameters 56( 57 HasPrefetch: Boolean = false, 58 HartId: Int = 0, 59 XLEN: Int = 64, 60 VLEN: Int = 128, 61 ELEN: Int = 64, 62 HasMExtension: Boolean = true, 63 HasCExtension: Boolean = true, 64 HasDiv: Boolean = true, 65 HasICache: Boolean = true, 66 HasDCache: Boolean = true, 67 AddrBits: Int = 64, 68 VAddrBits: Int = 39, 69 HasFPU: Boolean = true, 70 HasVPU: Boolean = true, 71 HasCustomCSRCacheOp: Boolean = true, 72 FetchWidth: Int = 8, 73 AsidLength: Int = 16, 74 EnableBPU: Boolean = true, 75 EnableBPD: Boolean = true, 76 EnableRAS: Boolean = true, 77 EnableLB: Boolean = false, 78 EnableLoop: Boolean = true, 79 EnableSC: Boolean = true, 80 EnbaleTlbDebug: Boolean = false, 81 EnableJal: Boolean = false, 82 EnableFauFTB: Boolean = true, 83 UbtbGHRLength: Int = 4, 84 // HistoryLength: Int = 512, 85 EnableGHistDiff: Boolean = true, 86 EnableCommitGHistDiff: Boolean = true, 87 UbtbSize: Int = 256, 88 FtbSize: Int = 2048, 89 RasSize: Int = 16, 90 RasSpecSize: Int = 32, 91 RasCtrSize: Int = 3, 92 CacheLineSize: Int = 512, 93 FtbWays: Int = 4, 94 TageTableInfos: Seq[Tuple3[Int,Int,Int]] = 95 // Sets Hist Tag 96 // Seq(( 2048, 2, 8), 97 // ( 2048, 9, 8), 98 // ( 2048, 13, 8), 99 // ( 2048, 20, 8), 100 // ( 2048, 26, 8), 101 // ( 2048, 44, 8), 102 // ( 2048, 73, 8), 103 // ( 2048, 256, 8)), 104 Seq(( 4096, 8, 8), 105 ( 4096, 13, 8), 106 ( 4096, 32, 8), 107 ( 4096, 119, 8)), 108 ITTageTableInfos: Seq[Tuple3[Int,Int,Int]] = 109 // Sets Hist Tag 110 Seq(( 256, 4, 9), 111 ( 256, 8, 9), 112 ( 512, 13, 9), 113 ( 512, 16, 9), 114 ( 512, 32, 9)), 115 SCNRows: Int = 512, 116 SCNTables: Int = 4, 117 SCCtrBits: Int = 6, 118 SCHistLens: Seq[Int] = Seq(0, 4, 10, 16), 119 numBr: Int = 2, 120 branchPredictor: Function2[BranchPredictionResp, Parameters, Tuple2[Seq[BasePredictor], BranchPredictionResp]] = 121 ((resp_in: BranchPredictionResp, p: Parameters) => { 122 val ftb = Module(new FTB()(p)) 123 val ubtb =Module(new FauFTB()(p)) 124 // val bim = Module(new BIM()(p)) 125 val tage = Module(new Tage_SC()(p)) 126 val ras = Module(new RAS()(p)) 127 val ittage = Module(new ITTage()(p)) 128 val preds = Seq(ubtb, tage, ftb, ittage, ras) 129 preds.map(_.io := DontCare) 130 131 // ubtb.io.resp_in(0) := resp_in 132 // bim.io.resp_in(0) := ubtb.io.resp 133 // btb.io.resp_in(0) := bim.io.resp 134 // tage.io.resp_in(0) := btb.io.resp 135 // loop.io.resp_in(0) := tage.io.resp 136 ubtb.io.in.bits.resp_in(0) := resp_in 137 tage.io.in.bits.resp_in(0) := ubtb.io.out 138 ftb.io.in.bits.resp_in(0) := tage.io.out 139 ittage.io.in.bits.resp_in(0) := ftb.io.out 140 ras.io.in.bits.resp_in(0) := ittage.io.out 141 142 (preds, ras.io.out) 143 }), 144 ICacheECCForceError: Boolean = false, 145 IBufSize: Int = 48, 146 IBufNBank: Int = 6, // IBuffer bank amount, should divide IBufSize 147 DecodeWidth: Int = 6, 148 RenameWidth: Int = 6, 149 CommitWidth: Int = 6, 150 MaxUopSize: Int = 65, 151 EnableRenameSnapshot: Boolean = true, 152 RenameSnapshotNum: Int = 4, 153 FtqSize: Int = 64, 154 EnableLoadFastWakeUp: Boolean = true, // NOTE: not supported now, make it false 155 IntLogicRegs: Int = 32, 156 FpLogicRegs: Int = 32 + 1 + 1, // 1: I2F, 1: stride 157 VecLogicRegs: Int = 32 + 1 + 15, // 15: tmp, 1: vconfig 158 VCONFIG_IDX: Int = 32, 159 NRPhyRegs: Int = 192, 160 VirtualLoadQueueSize: Int = 72, 161 LoadQueueRARSize: Int = 72, 162 LoadQueueRAWSize: Int = 64, // NOTE: make sure that LoadQueueRAWSize is power of 2. 163 RollbackGroupSize: Int = 8, 164 LoadQueueReplaySize: Int = 72, 165 LoadUncacheBufferSize: Int = 20, 166 LoadQueueNWriteBanks: Int = 8, // NOTE: make sure that LoadQueueRARSize/LoadQueueRAWSize is divided by LoadQueueNWriteBanks 167 StoreQueueSize: Int = 64, 168 StoreQueueNWriteBanks: Int = 8, // NOTE: make sure that StoreQueueSize is divided by StoreQueueNWriteBanks 169 StoreQueueForwardWithMask: Boolean = true, 170 VlsQueueSize: Int = 8, 171 RobSize: Int = 160, 172 RabSize: Int = 256, 173 VTypeBufferSize: Int = 64, // used to reorder vtype 174 IssueQueueSize: Int = 24, 175 IssueQueueCompEntrySize: Int = 16, 176 dpParams: DispatchParameters = DispatchParameters( 177 IntDqSize = 16, 178 FpDqSize = 16, 179 LsDqSize = 18, 180 IntDqDeqWidth = 8, 181 FpDqDeqWidth = 6, 182 LsDqDeqWidth = 6, 183 ), 184 intPreg: PregParams = IntPregParams( 185 numEntries = 224, 186 numRead = None, 187 numWrite = None, 188 ), 189 vfPreg: VfPregParams = VfPregParams( 190 numEntries = 192, 191 numRead = Some(14), 192 numWrite = None, 193 ), 194 prefetcher: Option[PrefetcherParams] = Some(SMSParams()), 195 LoadPipelineWidth: Int = 3, 196 StorePipelineWidth: Int = 2, 197 VecLoadPipelineWidth: Int = 2, 198 VecStorePipelineWidth: Int = 2, 199 VecMemSrcInWidth: Int = 2, 200 VecMemInstWbWidth: Int = 1, 201 VecMemDispatchWidth: Int = 1, 202 StoreBufferSize: Int = 16, 203 StoreBufferThreshold: Int = 7, 204 EnsbufferWidth: Int = 2, 205 // ============ VLSU ============ 206 UsQueueSize: Int = 8, 207 VlFlowSize: Int = 32, 208 VlUopSize: Int = 32, 209 VsFlowL1Size: Int = 128, 210 VsFlowL2Size: Int = 32, 211 VsUopSize: Int = 32, 212 // ============================== 213 UncacheBufferSize: Int = 4, 214 EnableLoadToLoadForward: Boolean = false, 215 EnableFastForward: Boolean = true, 216 EnableLdVioCheckAfterReset: Boolean = true, 217 EnableSoftPrefetchAfterReset: Boolean = true, 218 EnableCacheErrorAfterReset: Boolean = true, 219 EnableAccurateLoadError: Boolean = true, 220 EnableUncacheWriteOutstanding: Boolean = false, 221 EnableStorePrefetchAtIssue: Boolean = false, 222 EnableStorePrefetchAtCommit: Boolean = false, 223 EnableAtCommitMissTrigger: Boolean = true, 224 EnableStorePrefetchSMS: Boolean = false, 225 EnableStorePrefetchSPB: Boolean = false, 226 MMUAsidLen: Int = 16, // max is 16, 0 is not supported now 227 ReSelectLen: Int = 7, // load replay queue replay select counter len 228 iwpuParameters: WPUParameters = WPUParameters( 229 enWPU = false, 230 algoName = "mmru", 231 isICache = true, 232 ), 233 dwpuParameters: WPUParameters = WPUParameters( 234 enWPU = false, 235 algoName = "mmru", 236 enCfPred = false, 237 isICache = false, 238 ), 239 itlbParameters: TLBParameters = TLBParameters( 240 name = "itlb", 241 fetchi = true, 242 useDmode = false, 243 NWays = 48, 244 ), 245 itlbPortNum: Int = 2 + ICacheParameters().prefetchPipeNum + 1, 246 ipmpPortNum: Int = 2 + ICacheParameters().prefetchPipeNum + 1, 247 ldtlbParameters: TLBParameters = TLBParameters( 248 name = "ldtlb", 249 NWays = 48, 250 outReplace = false, 251 partialStaticPMP = true, 252 outsideRecvFlush = true, 253 saveLevel = true 254 ), 255 sttlbParameters: TLBParameters = TLBParameters( 256 name = "sttlb", 257 NWays = 48, 258 outReplace = false, 259 partialStaticPMP = true, 260 outsideRecvFlush = true, 261 saveLevel = true 262 ), 263 hytlbParameters: TLBParameters = TLBParameters( 264 name = "hytlb", 265 NWays = 48, 266 outReplace = false, 267 partialStaticPMP = true, 268 outsideRecvFlush = true, 269 saveLevel = true 270 ), 271 pftlbParameters: TLBParameters = TLBParameters( 272 name = "pftlb", 273 NWays = 48, 274 outReplace = false, 275 partialStaticPMP = true, 276 outsideRecvFlush = true, 277 saveLevel = true 278 ), 279 refillBothTlb: Boolean = false, 280 btlbParameters: TLBParameters = TLBParameters( 281 name = "btlb", 282 NWays = 48, 283 ), 284 l2tlbParameters: L2TLBParameters = L2TLBParameters(), 285 NumPerfCounters: Int = 16, 286 icacheParameters: ICacheParameters = ICacheParameters( 287 tagECC = Some("parity"), 288 dataECC = Some("parity"), 289 replacer = Some("setplru"), 290 nMissEntries = 2, 291 nProbeEntries = 2, 292 nPrefetchEntries = 12, 293 nPrefBufferEntries = 32, 294 ), 295 dcacheParametersOpt: Option[DCacheParameters] = Some(DCacheParameters( 296 tagECC = Some("secded"), 297 dataECC = Some("secded"), 298 replacer = Some("setplru"), 299 nMissEntries = 16, 300 nProbeEntries = 8, 301 nReleaseEntries = 18, 302 nMaxPrefetchEntry = 6, 303 )), 304 L2CacheParamsOpt: Option[L2Param] = Some(L2Param( 305 name = "l2", 306 ways = 8, 307 sets = 1024, // default 512KB L2 308 prefetch = Some(coupledL2.prefetch.PrefetchReceiverParams()) 309 )), 310 L2NBanks: Int = 1, 311 usePTWRepeater: Boolean = false, 312 softTLB: Boolean = false, // dpi-c l1tlb debug only 313 softPTW: Boolean = false, // dpi-c l2tlb debug only 314 softPTWDelay: Int = 1 315){ 316 def vlWidth = log2Up(VLEN) + 1 317 318 val allHistLens = SCHistLens ++ ITTageTableInfos.map(_._2) ++ TageTableInfos.map(_._2) :+ UbtbGHRLength 319 val HistoryLength = allHistLens.max + numBr * FtqSize + 9 // 256 for the predictor configs now 320 321 val intSchdParams = { 322 implicit val schdType: SchedulerType = IntScheduler() 323 SchdBlockParams(Seq( 324 IssueBlockParams(Seq( 325 ExeUnitParams("ALU0", Seq(AluCfg), Seq(IntWB(port = 0, 0)), Seq(Seq(IntRD(0, 0)), Seq(IntRD(1, 0))), true, 2), 326 ExeUnitParams("BJU0", Seq(BrhCfg, JmpCfg, MulCfg, BkuCfg), Seq(IntWB(port = 4, 0)), Seq(Seq(IntRD(8, 0)), Seq(IntRD(7, 1))), true, 2), 327 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 328 IssueBlockParams(Seq( 329 ExeUnitParams("ALU1", Seq(AluCfg), Seq(IntWB(port = 1, 0)), Seq(Seq(IntRD(2, 0)), Seq(IntRD(3, 0))), true, 2), 330 ExeUnitParams("BJU1", Seq(BrhCfg, JmpCfg, MulCfg, BkuCfg), Seq(IntWB(port = 2, 1)), Seq(Seq(IntRD(9, 0)), Seq(IntRD(5, 1))), true, 2), 331 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 332 IssueBlockParams(Seq( 333 ExeUnitParams("ALU2", Seq(AluCfg), Seq(IntWB(port = 2, 0)), Seq(Seq(IntRD(4, 0)), Seq(IntRD(5, 0))), true, 2), 334 ExeUnitParams("BJU2", Seq(BrhCfg, JmpCfg, I2fCfg, VSetRiWiCfg, VSetRiWvfCfg, CsrCfg, FenceCfg), Seq(IntWB(port = 3, 1), VfWB(4, 0)), Seq(Seq(IntRD(10, 0)), Seq(IntRD(3, 1)))), 335 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 336 IssueBlockParams(Seq( 337 ExeUnitParams("ALU3", Seq(AluCfg), Seq(IntWB(port = 3, 0)), Seq(Seq(IntRD(6, 0)), Seq(IntRD(7, 0))), true, 2), 338 ExeUnitParams("BJU3", Seq(BrhCfg, JmpCfg, DivCfg), Seq(IntWB(port = 4, 1)), Seq(Seq(IntRD(11, 0)), Seq(IntRD(1, 1)))), 339 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 340 ), 341 numPregs = intPreg.numEntries, 342 numDeqOutside = 0, 343 schdType = schdType, 344 rfDataWidth = intPreg.dataCfg.dataWidth, 345 numUopIn = dpParams.IntDqDeqWidth, 346 ) 347 } 348 val vfSchdParams = { 349 implicit val schdType: SchedulerType = VfScheduler() 350 SchdBlockParams(Seq( 351 IssueBlockParams(Seq( 352 ExeUnitParams("VFEX0", Seq(VfaluCfg, VfmaCfg, VialuCfg, VppuCfg, F2fCfg, F2iCfg, VSetRvfWvfCfg), Seq(VfWB(port = 0, 0), IntWB(port = 0, 1)), Seq(Seq(VfRD(1, 0)), Seq(VfRD(2, 0)), Seq(VfRD(3, 0)), Seq(VfRD(4, 0)), Seq(VfRD(5, 0)))), 353 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 354 IssueBlockParams(Seq( 355 ExeUnitParams("VFEX1", Seq(VfaluCfg, VfmaCfg, VimacCfg, VipuCfg, F2vCfg, VfcvtCfg), Seq(VfWB(port = 1, 0), IntWB(port = 1, 1)), Seq(Seq(VfRD(7, 0)), Seq(VfRD(8, 0)), Seq(VfRD(9, 0)), Seq(VfRD(10, 0)), Seq(VfRD(11, 0)))), 356 ExeUnitParams("VFEX2", Seq(VfdivCfg, VidivCfg), Seq(VfWB(port = 2, 0)), Seq(Seq(VfRD(7, 0)), Seq(VfRD(8, 0)), Seq(VfRD(9, 0)), Seq(VfRD(10, 0)), Seq(VfRD(11, 0)))), 357 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 358 ), 359 numPregs = vfPreg.numEntries, 360 numDeqOutside = 0, 361 schdType = schdType, 362 rfDataWidth = vfPreg.dataCfg.dataWidth, 363 numUopIn = dpParams.FpDqDeqWidth, 364 ) 365 } 366 367 val memSchdParams = { 368 implicit val schdType: SchedulerType = MemScheduler() 369 val rfDataWidth = 64 370 371 SchdBlockParams(Seq( 372 IssueBlockParams(Seq( 373 ExeUnitParams("STA0", Seq(StaCfg), Seq(), Seq(Seq(IntRD(3, 1)))), 374 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 375 IssueBlockParams(Seq( 376 ExeUnitParams("HYU0", Seq(HyldaCfg, HystaCfg, MouCfg), Seq(IntWB(5, 0), VfWB(5, 0)), Seq(Seq(IntRD(14, 0)))), 377 ExeUnitParams("HYU1", Seq(FakeHystaCfg), Seq(), Seq()), // fake unit, used to create a new writeback port 378 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 379 IssueBlockParams(Seq( 380 ExeUnitParams("LDU0", Seq(LduCfg), Seq(IntWB(6, 0), VfWB(6, 0)), Seq(Seq(IntRD(12, 0))), true, 2), 381 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 382 IssueBlockParams(Seq( 383 ExeUnitParams("LDU1", Seq(LduCfg), Seq(IntWB(7, 0), VfWB(7, 0)), Seq(Seq(IntRD(13, 0))), true, 2), 384 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 385 IssueBlockParams(Seq( 386 ExeUnitParams("VLSU0", Seq(VlduCfg, VstuCfg), Seq(VfWB(3, 0)), Seq(Seq(VfRD(1, 0)), Seq(VfRD(2, 0)), Seq(VfRD(3, 0)), Seq(VfRD(4, 0)), Seq(VfRD(5, 0)))), 387 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 388 IssueBlockParams(Seq( 389 ExeUnitParams("STD0", Seq(StdCfg, MoudCfg), Seq(), Seq(Seq(IntRD(13, 1), VfRD(6, 0)))), 390 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 391 IssueBlockParams(Seq( 392 ExeUnitParams("STD1", Seq(StdCfg, MoudCfg), Seq(), Seq(Seq(IntRD(5, 1), VfRD(10, Int.MaxValue)))), 393 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 394 ), 395 numPregs = intPreg.numEntries max vfPreg.numEntries, 396 numDeqOutside = 0, 397 schdType = schdType, 398 rfDataWidth = rfDataWidth, 399 numUopIn = dpParams.LsDqDeqWidth, 400 ) 401 } 402 403 def PregIdxWidthMax = intPreg.addrWidth max vfPreg.addrWidth 404 405 def iqWakeUpParams = { 406 Seq( 407 WakeUpConfig( 408 Seq("ALU0", "ALU1", "ALU2", "ALU3", "HYU0", "LDU0", "LDU1", "BJU0", "BJU1") -> 409 Seq("ALU0", "BJU0", "ALU1", "BJU1", "ALU2", "BJU2", "ALU3", "BJU3", "LDU0", "LDU1", "STA0", "STD0", "STD1", "HYU0") 410 ), 411 ).flatten 412 } 413 414 val backendParams: BackendParams = backend.BackendParams( 415 Map( 416 IntScheduler() -> intSchdParams, 417 VfScheduler() -> vfSchdParams, 418 MemScheduler() -> memSchdParams, 419 ), 420 Seq( 421 intPreg, 422 vfPreg, 423 ), 424 iqWakeUpParams, 425 ) 426} 427 428case object DebugOptionsKey extends Field[DebugOptions] 429 430case class DebugOptions 431( 432 FPGAPlatform: Boolean = false, 433 EnableDifftest: Boolean = false, 434 AlwaysBasicDiff: Boolean = true, 435 EnableDebug: Boolean = false, 436 EnablePerfDebug: Boolean = true, 437 UseDRAMSim: Boolean = false, 438 EnableConstantin: Boolean = false, 439 EnableChiselDB: Boolean = false, 440 AlwaysBasicDB: Boolean = true, 441 EnableTopDown: Boolean = false, 442 EnableRollingDB: Boolean = false 443) 444 445trait HasXSParameter { 446 447 implicit val p: Parameters 448 449 val PAddrBits = p(SoCParamsKey).PAddrBits // PAddrBits is Phyical Memory addr bits 450 451 val coreParams = p(XSCoreParamsKey) 452 val env = p(DebugOptionsKey) 453 454 val XLEN = coreParams.XLEN 455 val VLEN = coreParams.VLEN 456 val ELEN = coreParams.ELEN 457 val minFLen = 32 458 val fLen = 64 459 def xLen = XLEN 460 461 val HasMExtension = coreParams.HasMExtension 462 val HasCExtension = coreParams.HasCExtension 463 val HasDiv = coreParams.HasDiv 464 val HasIcache = coreParams.HasICache 465 val HasDcache = coreParams.HasDCache 466 val AddrBits = coreParams.AddrBits // AddrBits is used in some cases 467 val VAddrBits = coreParams.VAddrBits // VAddrBits is Virtual Memory addr bits 468 val AsidLength = coreParams.AsidLength 469 val ReSelectLen = coreParams.ReSelectLen 470 val AddrBytes = AddrBits / 8 // unused 471 val DataBits = XLEN 472 val DataBytes = DataBits / 8 473 val VDataBytes = VLEN / 8 474 val HasFPU = coreParams.HasFPU 475 val HasVPU = coreParams.HasVPU 476 val HasCustomCSRCacheOp = coreParams.HasCustomCSRCacheOp 477 val FetchWidth = coreParams.FetchWidth 478 val PredictWidth = FetchWidth * (if (HasCExtension) 2 else 1) 479 val EnableBPU = coreParams.EnableBPU 480 val EnableBPD = coreParams.EnableBPD // enable backing predictor(like Tage) in BPUStage3 481 val EnableRAS = coreParams.EnableRAS 482 val EnableLB = coreParams.EnableLB 483 val EnableLoop = coreParams.EnableLoop 484 val EnableSC = coreParams.EnableSC 485 val EnbaleTlbDebug = coreParams.EnbaleTlbDebug 486 val HistoryLength = coreParams.HistoryLength 487 val EnableGHistDiff = coreParams.EnableGHistDiff 488 val EnableCommitGHistDiff = coreParams.EnableCommitGHistDiff 489 val UbtbGHRLength = coreParams.UbtbGHRLength 490 val UbtbSize = coreParams.UbtbSize 491 val EnableFauFTB = coreParams.EnableFauFTB 492 val FtbSize = coreParams.FtbSize 493 val FtbWays = coreParams.FtbWays 494 val RasSize = coreParams.RasSize 495 val RasSpecSize = coreParams.RasSpecSize 496 val RasCtrSize = coreParams.RasCtrSize 497 498 def getBPDComponents(resp_in: BranchPredictionResp, p: Parameters) = { 499 coreParams.branchPredictor(resp_in, p) 500 } 501 val numBr = coreParams.numBr 502 val TageTableInfos = coreParams.TageTableInfos 503 val TageBanks = coreParams.numBr 504 val SCNRows = coreParams.SCNRows 505 val SCCtrBits = coreParams.SCCtrBits 506 val SCHistLens = coreParams.SCHistLens 507 val SCNTables = coreParams.SCNTables 508 509 val SCTableInfos = Seq.fill(SCNTables)((SCNRows, SCCtrBits)) zip SCHistLens map { 510 case ((n, cb), h) => (n, cb, h) 511 } 512 val ITTageTableInfos = coreParams.ITTageTableInfos 513 type FoldedHistoryInfo = Tuple2[Int, Int] 514 val foldedGHistInfos = 515 (TageTableInfos.map{ case (nRows, h, t) => 516 if (h > 0) 517 Set((h, min(log2Ceil(nRows/numBr), h)), (h, min(h, t)), (h, min(h, t-1))) 518 else 519 Set[FoldedHistoryInfo]() 520 }.reduce(_++_).toSet ++ 521 SCTableInfos.map{ case (nRows, _, h) => 522 if (h > 0) 523 Set((h, min(log2Ceil(nRows/TageBanks), h))) 524 else 525 Set[FoldedHistoryInfo]() 526 }.reduce(_++_).toSet ++ 527 ITTageTableInfos.map{ case (nRows, h, t) => 528 if (h > 0) 529 Set((h, min(log2Ceil(nRows), h)), (h, min(h, t)), (h, min(h, t-1))) 530 else 531 Set[FoldedHistoryInfo]() 532 }.reduce(_++_) ++ 533 Set[FoldedHistoryInfo]((UbtbGHRLength, log2Ceil(UbtbSize))) 534 ).toList 535 536 537 538 val CacheLineSize = coreParams.CacheLineSize 539 val CacheLineHalfWord = CacheLineSize / 16 540 val ExtHistoryLength = HistoryLength + 64 541 val ICacheECCForceError = coreParams.ICacheECCForceError 542 val IBufSize = coreParams.IBufSize 543 val IBufNBank = coreParams.IBufNBank 544 val backendParams: BackendParams = coreParams.backendParams 545 val DecodeWidth = coreParams.DecodeWidth 546 val RenameWidth = coreParams.RenameWidth 547 val CommitWidth = coreParams.CommitWidth 548 val MaxUopSize = coreParams.MaxUopSize 549 val EnableRenameSnapshot = coreParams.EnableRenameSnapshot 550 val RenameSnapshotNum = coreParams.RenameSnapshotNum 551 val FtqSize = coreParams.FtqSize 552 val EnableLoadFastWakeUp = coreParams.EnableLoadFastWakeUp 553 val IntLogicRegs = coreParams.IntLogicRegs 554 val FpLogicRegs = coreParams.FpLogicRegs 555 val VecLogicRegs = coreParams.VecLogicRegs 556 val VCONFIG_IDX = coreParams.VCONFIG_IDX 557 val IntPhyRegs = coreParams.intPreg.numEntries 558 val VfPhyRegs = coreParams.vfPreg.numEntries 559 val MaxPhyPregs = IntPhyRegs max VfPhyRegs 560 val PhyRegIdxWidth = log2Up(IntPhyRegs) max log2Up(VfPhyRegs) 561 val RobSize = coreParams.RobSize 562 val RabSize = coreParams.RabSize 563 val VTypeBufferSize = coreParams.VTypeBufferSize 564 val IntRefCounterWidth = log2Ceil(RobSize) 565 val LSQEnqWidth = coreParams.dpParams.LsDqDeqWidth 566 val LSQLdEnqWidth = LSQEnqWidth min backendParams.numLoadDp 567 val LSQStEnqWidth = LSQEnqWidth min backendParams.numStoreDp 568 val VirtualLoadQueueSize = coreParams.VirtualLoadQueueSize 569 val LoadQueueRARSize = coreParams.LoadQueueRARSize 570 val LoadQueueRAWSize = coreParams.LoadQueueRAWSize 571 val RollbackGroupSize = coreParams.RollbackGroupSize 572 val LoadQueueReplaySize = coreParams.LoadQueueReplaySize 573 val LoadUncacheBufferSize = coreParams.LoadUncacheBufferSize 574 val LoadQueueNWriteBanks = coreParams.LoadQueueNWriteBanks 575 val StoreQueueSize = coreParams.StoreQueueSize 576 val StoreQueueNWriteBanks = coreParams.StoreQueueNWriteBanks 577 val StoreQueueForwardWithMask = coreParams.StoreQueueForwardWithMask 578 val VlsQueueSize = coreParams.VlsQueueSize 579 val dpParams = coreParams.dpParams 580 581 def MemIQSizeMax = backendParams.memSchdParams.get.issueBlockParams.map(_.numEntries).max 582 def IQSizeMax = backendParams.allSchdParams.map(_.issueBlockParams.map(_.numEntries).max).max 583 584 val NumRedirect = backendParams.numRedirect 585 val BackendRedirectNum = NumRedirect + 2 //2: ldReplay + Exception 586 val FtqRedirectAheadNum = NumRedirect 587 val LoadPipelineWidth = coreParams.LoadPipelineWidth 588 val StorePipelineWidth = coreParams.StorePipelineWidth 589 val VecLoadPipelineWidth = coreParams.VecLoadPipelineWidth 590 val VecStorePipelineWidth = coreParams.VecStorePipelineWidth 591 val VecMemSrcInWidth = coreParams.VecMemSrcInWidth 592 val VecMemInstWbWidth = coreParams.VecMemInstWbWidth 593 val VecMemDispatchWidth = coreParams.VecMemDispatchWidth 594 val StoreBufferSize = coreParams.StoreBufferSize 595 val StoreBufferThreshold = coreParams.StoreBufferThreshold 596 val EnsbufferWidth = coreParams.EnsbufferWidth 597 val UsQueueSize = coreParams.UsQueueSize 598 val VlFlowSize = coreParams.VlFlowSize 599 val VlUopSize = coreParams.VlUopSize 600 val VsFlowL1Size = coreParams.VsFlowL1Size 601 val VsFlowL2Size = coreParams.VsFlowL2Size 602 val VsUopSize = coreParams.VsUopSize 603 val UncacheBufferSize = coreParams.UncacheBufferSize 604 val EnableLoadToLoadForward = coreParams.EnableLoadToLoadForward 605 val EnableFastForward = coreParams.EnableFastForward 606 val EnableLdVioCheckAfterReset = coreParams.EnableLdVioCheckAfterReset 607 val EnableSoftPrefetchAfterReset = coreParams.EnableSoftPrefetchAfterReset 608 val EnableCacheErrorAfterReset = coreParams.EnableCacheErrorAfterReset 609 val EnableAccurateLoadError = coreParams.EnableAccurateLoadError 610 val EnableUncacheWriteOutstanding = coreParams.EnableUncacheWriteOutstanding 611 val EnableStorePrefetchAtIssue = coreParams.EnableStorePrefetchAtIssue 612 val EnableStorePrefetchAtCommit = coreParams.EnableStorePrefetchAtCommit 613 val EnableAtCommitMissTrigger = coreParams.EnableAtCommitMissTrigger 614 val EnableStorePrefetchSMS = coreParams.EnableStorePrefetchSMS 615 val EnableStorePrefetchSPB = coreParams.EnableStorePrefetchSPB 616 val asidLen = coreParams.MMUAsidLen 617 val BTLBWidth = coreParams.LoadPipelineWidth + coreParams.StorePipelineWidth 618 val refillBothTlb = coreParams.refillBothTlb 619 val iwpuParam = coreParams.iwpuParameters 620 val dwpuParam = coreParams.dwpuParameters 621 val itlbParams = coreParams.itlbParameters 622 val ldtlbParams = coreParams.ldtlbParameters 623 val sttlbParams = coreParams.sttlbParameters 624 val hytlbParams = coreParams.hytlbParameters 625 val pftlbParams = coreParams.pftlbParameters 626 val btlbParams = coreParams.btlbParameters 627 val l2tlbParams = coreParams.l2tlbParameters 628 val NumPerfCounters = coreParams.NumPerfCounters 629 630 val instBytes = if (HasCExtension) 2 else 4 631 val instOffsetBits = log2Ceil(instBytes) 632 633 val icacheParameters = coreParams.icacheParameters 634 val dcacheParameters = coreParams.dcacheParametersOpt.getOrElse(DCacheParameters()) 635 636 // dcache block cacheline when lr for LRSCCycles - LRSCBackOff cycles 637 // for constrained LR/SC loop 638 val LRSCCycles = 64 639 // for lr storm 640 val LRSCBackOff = 8 641 642 // cache hierarchy configurations 643 val l1BusDataWidth = 256 644 645 // load violation predict 646 val ResetTimeMax2Pow = 20 //1078576 647 val ResetTimeMin2Pow = 10 //1024 648 // wait table parameters 649 val WaitTableSize = 1024 650 val MemPredPCWidth = log2Up(WaitTableSize) 651 val LWTUse2BitCounter = true 652 // store set parameters 653 val SSITSize = WaitTableSize 654 val LFSTSize = 32 655 val SSIDWidth = log2Up(LFSTSize) 656 val LFSTWidth = 4 657 val StoreSetEnable = true // LWT will be disabled if SS is enabled 658 val LFSTEnable = true 659 660 val PCntIncrStep: Int = 6 661 val numPCntHc: Int = 25 662 val numPCntPtw: Int = 19 663 664 val numCSRPCntFrontend = 8 665 val numCSRPCntCtrl = 8 666 val numCSRPCntLsu = 8 667 val numCSRPCntHc = 5 668 val printEventCoding = true 669 670 // Parameters for Sdtrig extension 671 protected val TriggerNum = 4 672 protected val TriggerChainMaxLength = 2 673} 674