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, MouCfg), Seq(IntWB(6, 1)), Seq(Seq(IntRD(3, 1)))), 374 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 375 IssueBlockParams(Seq( 376 ExeUnitParams("STA1", Seq(StaCfg, MouCfg), Seq(IntWB(7, 1)), Seq(Seq(IntRD(14, 0)))), 377 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 378 IssueBlockParams(Seq( 379 ExeUnitParams("LDU0", Seq(LduCfg), Seq(IntWB(5, 0), VfWB(5, 0)), Seq(Seq(IntRD(6, 0))), true, 2), 380 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 381 IssueBlockParams(Seq( 382 ExeUnitParams("LDU1", Seq(LduCfg), Seq(IntWB(6, 0), VfWB(6, 0)), Seq(Seq(IntRD(12, 0))), true, 2), 383 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 384 IssueBlockParams(Seq( 385 ExeUnitParams("LDU2", Seq(LduCfg), Seq(IntWB(7, 0), VfWB(7, 0)), Seq(Seq(IntRD(13, 0))), true, 2), 386 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 387 IssueBlockParams(Seq( 388 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)))), 389 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 390 IssueBlockParams(Seq( 391 ExeUnitParams("STD0", Seq(StdCfg, MoudCfg), Seq(), Seq(Seq(IntRD(13, 1), VfRD(6, 0)))), 392 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 393 IssueBlockParams(Seq( 394 ExeUnitParams("STD1", Seq(StdCfg, MoudCfg), Seq(), Seq(Seq(IntRD(5, 1), VfRD(10, Int.MaxValue)))), 395 ), numEntries = IssueQueueSize, numEnq = 2, numComp = IssueQueueCompEntrySize), 396 ), 397 numPregs = intPreg.numEntries max vfPreg.numEntries, 398 numDeqOutside = 0, 399 schdType = schdType, 400 rfDataWidth = rfDataWidth, 401 numUopIn = dpParams.LsDqDeqWidth, 402 ) 403 } 404 405 def PregIdxWidthMax = intPreg.addrWidth max vfPreg.addrWidth 406 407 def iqWakeUpParams = { 408 Seq( 409 WakeUpConfig( 410 Seq("ALU0", "ALU1", "ALU2", "ALU3", "LDU0", "LDU1", "LDU2", "BJU0", "BJU1") -> 411 Seq("ALU0", "BJU0", "ALU1", "BJU1", "ALU2", "BJU2", "ALU3", "BJU3", "LDU0", "LDU1", "LDU2", "STA0", "STA1", "STD0", "STD1") 412 ), 413 ).flatten 414 } 415 416 val backendParams: BackendParams = backend.BackendParams( 417 Map( 418 IntScheduler() -> intSchdParams, 419 VfScheduler() -> vfSchdParams, 420 MemScheduler() -> memSchdParams, 421 ), 422 Seq( 423 intPreg, 424 vfPreg, 425 ), 426 iqWakeUpParams, 427 ) 428} 429 430case object DebugOptionsKey extends Field[DebugOptions] 431 432case class DebugOptions 433( 434 FPGAPlatform: Boolean = false, 435 EnableDifftest: Boolean = false, 436 AlwaysBasicDiff: Boolean = true, 437 EnableDebug: Boolean = false, 438 EnablePerfDebug: Boolean = true, 439 UseDRAMSim: Boolean = false, 440 EnableConstantin: Boolean = false, 441 EnableChiselDB: Boolean = false, 442 AlwaysBasicDB: Boolean = true, 443 EnableTopDown: Boolean = false, 444 EnableRollingDB: Boolean = false 445) 446 447trait HasXSParameter { 448 449 implicit val p: Parameters 450 451 val PAddrBits = p(SoCParamsKey).PAddrBits // PAddrBits is Phyical Memory addr bits 452 453 val coreParams = p(XSCoreParamsKey) 454 val env = p(DebugOptionsKey) 455 456 val XLEN = coreParams.XLEN 457 val VLEN = coreParams.VLEN 458 val ELEN = coreParams.ELEN 459 val minFLen = 32 460 val fLen = 64 461 def xLen = XLEN 462 463 val HasMExtension = coreParams.HasMExtension 464 val HasCExtension = coreParams.HasCExtension 465 val HasDiv = coreParams.HasDiv 466 val HasIcache = coreParams.HasICache 467 val HasDcache = coreParams.HasDCache 468 val AddrBits = coreParams.AddrBits // AddrBits is used in some cases 469 val VAddrBits = coreParams.VAddrBits // VAddrBits is Virtual Memory addr bits 470 val AsidLength = coreParams.AsidLength 471 val ReSelectLen = coreParams.ReSelectLen 472 val AddrBytes = AddrBits / 8 // unused 473 val DataBits = XLEN 474 val DataBytes = DataBits / 8 475 val VDataBytes = VLEN / 8 476 val HasFPU = coreParams.HasFPU 477 val HasVPU = coreParams.HasVPU 478 val HasCustomCSRCacheOp = coreParams.HasCustomCSRCacheOp 479 val FetchWidth = coreParams.FetchWidth 480 val PredictWidth = FetchWidth * (if (HasCExtension) 2 else 1) 481 val EnableBPU = coreParams.EnableBPU 482 val EnableBPD = coreParams.EnableBPD // enable backing predictor(like Tage) in BPUStage3 483 val EnableRAS = coreParams.EnableRAS 484 val EnableLB = coreParams.EnableLB 485 val EnableLoop = coreParams.EnableLoop 486 val EnableSC = coreParams.EnableSC 487 val EnbaleTlbDebug = coreParams.EnbaleTlbDebug 488 val HistoryLength = coreParams.HistoryLength 489 val EnableGHistDiff = coreParams.EnableGHistDiff 490 val EnableCommitGHistDiff = coreParams.EnableCommitGHistDiff 491 val UbtbGHRLength = coreParams.UbtbGHRLength 492 val UbtbSize = coreParams.UbtbSize 493 val EnableFauFTB = coreParams.EnableFauFTB 494 val FtbSize = coreParams.FtbSize 495 val FtbWays = coreParams.FtbWays 496 val RasSize = coreParams.RasSize 497 val RasSpecSize = coreParams.RasSpecSize 498 val RasCtrSize = coreParams.RasCtrSize 499 500 def getBPDComponents(resp_in: BranchPredictionResp, p: Parameters) = { 501 coreParams.branchPredictor(resp_in, p) 502 } 503 val numBr = coreParams.numBr 504 val TageTableInfos = coreParams.TageTableInfos 505 val TageBanks = coreParams.numBr 506 val SCNRows = coreParams.SCNRows 507 val SCCtrBits = coreParams.SCCtrBits 508 val SCHistLens = coreParams.SCHistLens 509 val SCNTables = coreParams.SCNTables 510 511 val SCTableInfos = Seq.fill(SCNTables)((SCNRows, SCCtrBits)) zip SCHistLens map { 512 case ((n, cb), h) => (n, cb, h) 513 } 514 val ITTageTableInfos = coreParams.ITTageTableInfos 515 type FoldedHistoryInfo = Tuple2[Int, Int] 516 val foldedGHistInfos = 517 (TageTableInfos.map{ case (nRows, h, t) => 518 if (h > 0) 519 Set((h, min(log2Ceil(nRows/numBr), h)), (h, min(h, t)), (h, min(h, t-1))) 520 else 521 Set[FoldedHistoryInfo]() 522 }.reduce(_++_).toSet ++ 523 SCTableInfos.map{ case (nRows, _, h) => 524 if (h > 0) 525 Set((h, min(log2Ceil(nRows/TageBanks), h))) 526 else 527 Set[FoldedHistoryInfo]() 528 }.reduce(_++_).toSet ++ 529 ITTageTableInfos.map{ case (nRows, h, t) => 530 if (h > 0) 531 Set((h, min(log2Ceil(nRows), h)), (h, min(h, t)), (h, min(h, t-1))) 532 else 533 Set[FoldedHistoryInfo]() 534 }.reduce(_++_) ++ 535 Set[FoldedHistoryInfo]((UbtbGHRLength, log2Ceil(UbtbSize))) 536 ).toList 537 538 539 540 val CacheLineSize = coreParams.CacheLineSize 541 val CacheLineHalfWord = CacheLineSize / 16 542 val ExtHistoryLength = HistoryLength + 64 543 val ICacheECCForceError = coreParams.ICacheECCForceError 544 val IBufSize = coreParams.IBufSize 545 val IBufNBank = coreParams.IBufNBank 546 val backendParams: BackendParams = coreParams.backendParams 547 val DecodeWidth = coreParams.DecodeWidth 548 val RenameWidth = coreParams.RenameWidth 549 val CommitWidth = coreParams.CommitWidth 550 val MaxUopSize = coreParams.MaxUopSize 551 val EnableRenameSnapshot = coreParams.EnableRenameSnapshot 552 val RenameSnapshotNum = coreParams.RenameSnapshotNum 553 val FtqSize = coreParams.FtqSize 554 val EnableLoadFastWakeUp = coreParams.EnableLoadFastWakeUp 555 val IntLogicRegs = coreParams.IntLogicRegs 556 val FpLogicRegs = coreParams.FpLogicRegs 557 val VecLogicRegs = coreParams.VecLogicRegs 558 val VCONFIG_IDX = coreParams.VCONFIG_IDX 559 val IntPhyRegs = coreParams.intPreg.numEntries 560 val VfPhyRegs = coreParams.vfPreg.numEntries 561 val MaxPhyPregs = IntPhyRegs max VfPhyRegs 562 val PhyRegIdxWidth = log2Up(IntPhyRegs) max log2Up(VfPhyRegs) 563 val RobSize = coreParams.RobSize 564 val RabSize = coreParams.RabSize 565 val VTypeBufferSize = coreParams.VTypeBufferSize 566 val IntRefCounterWidth = log2Ceil(RobSize) 567 val LSQEnqWidth = coreParams.dpParams.LsDqDeqWidth 568 val LSQLdEnqWidth = LSQEnqWidth min backendParams.numLoadDp 569 val LSQStEnqWidth = LSQEnqWidth min backendParams.numStoreDp 570 val VirtualLoadQueueSize = coreParams.VirtualLoadQueueSize 571 val LoadQueueRARSize = coreParams.LoadQueueRARSize 572 val LoadQueueRAWSize = coreParams.LoadQueueRAWSize 573 val RollbackGroupSize = coreParams.RollbackGroupSize 574 val LoadQueueReplaySize = coreParams.LoadQueueReplaySize 575 val LoadUncacheBufferSize = coreParams.LoadUncacheBufferSize 576 val LoadQueueNWriteBanks = coreParams.LoadQueueNWriteBanks 577 val StoreQueueSize = coreParams.StoreQueueSize 578 val StoreQueueNWriteBanks = coreParams.StoreQueueNWriteBanks 579 val StoreQueueForwardWithMask = coreParams.StoreQueueForwardWithMask 580 val VlsQueueSize = coreParams.VlsQueueSize 581 val dpParams = coreParams.dpParams 582 583 def MemIQSizeMax = backendParams.memSchdParams.get.issueBlockParams.map(_.numEntries).max 584 def IQSizeMax = backendParams.allSchdParams.map(_.issueBlockParams.map(_.numEntries).max).max 585 586 val NumRedirect = backendParams.numRedirect 587 val BackendRedirectNum = NumRedirect + 2 //2: ldReplay + Exception 588 val FtqRedirectAheadNum = NumRedirect 589 val LoadPipelineWidth = coreParams.LoadPipelineWidth 590 val StorePipelineWidth = coreParams.StorePipelineWidth 591 val VecLoadPipelineWidth = coreParams.VecLoadPipelineWidth 592 val VecStorePipelineWidth = coreParams.VecStorePipelineWidth 593 val VecMemSrcInWidth = coreParams.VecMemSrcInWidth 594 val VecMemInstWbWidth = coreParams.VecMemInstWbWidth 595 val VecMemDispatchWidth = coreParams.VecMemDispatchWidth 596 val StoreBufferSize = coreParams.StoreBufferSize 597 val StoreBufferThreshold = coreParams.StoreBufferThreshold 598 val EnsbufferWidth = coreParams.EnsbufferWidth 599 val UsQueueSize = coreParams.UsQueueSize 600 val VlFlowSize = coreParams.VlFlowSize 601 val VlUopSize = coreParams.VlUopSize 602 val VsFlowL1Size = coreParams.VsFlowL1Size 603 val VsFlowL2Size = coreParams.VsFlowL2Size 604 val VsUopSize = coreParams.VsUopSize 605 val UncacheBufferSize = coreParams.UncacheBufferSize 606 val EnableLoadToLoadForward = coreParams.EnableLoadToLoadForward 607 val EnableFastForward = coreParams.EnableFastForward 608 val EnableLdVioCheckAfterReset = coreParams.EnableLdVioCheckAfterReset 609 val EnableSoftPrefetchAfterReset = coreParams.EnableSoftPrefetchAfterReset 610 val EnableCacheErrorAfterReset = coreParams.EnableCacheErrorAfterReset 611 val EnableAccurateLoadError = coreParams.EnableAccurateLoadError 612 val EnableUncacheWriteOutstanding = coreParams.EnableUncacheWriteOutstanding 613 val EnableStorePrefetchAtIssue = coreParams.EnableStorePrefetchAtIssue 614 val EnableStorePrefetchAtCommit = coreParams.EnableStorePrefetchAtCommit 615 val EnableAtCommitMissTrigger = coreParams.EnableAtCommitMissTrigger 616 val EnableStorePrefetchSMS = coreParams.EnableStorePrefetchSMS 617 val EnableStorePrefetchSPB = coreParams.EnableStorePrefetchSPB 618 val asidLen = coreParams.MMUAsidLen 619 val BTLBWidth = coreParams.LoadPipelineWidth + coreParams.StorePipelineWidth 620 val refillBothTlb = coreParams.refillBothTlb 621 val iwpuParam = coreParams.iwpuParameters 622 val dwpuParam = coreParams.dwpuParameters 623 val itlbParams = coreParams.itlbParameters 624 val ldtlbParams = coreParams.ldtlbParameters 625 val sttlbParams = coreParams.sttlbParameters 626 val hytlbParams = coreParams.hytlbParameters 627 val pftlbParams = coreParams.pftlbParameters 628 val btlbParams = coreParams.btlbParameters 629 val l2tlbParams = coreParams.l2tlbParameters 630 val NumPerfCounters = coreParams.NumPerfCounters 631 632 val instBytes = if (HasCExtension) 2 else 4 633 val instOffsetBits = log2Ceil(instBytes) 634 635 val icacheParameters = coreParams.icacheParameters 636 val dcacheParameters = coreParams.dcacheParametersOpt.getOrElse(DCacheParameters()) 637 638 // dcache block cacheline when lr for LRSCCycles - LRSCBackOff cycles 639 // for constrained LR/SC loop 640 val LRSCCycles = 64 641 // for lr storm 642 val LRSCBackOff = 8 643 644 // cache hierarchy configurations 645 val l1BusDataWidth = 256 646 647 // load violation predict 648 val ResetTimeMax2Pow = 20 //1078576 649 val ResetTimeMin2Pow = 10 //1024 650 // wait table parameters 651 val WaitTableSize = 1024 652 val MemPredPCWidth = log2Up(WaitTableSize) 653 val LWTUse2BitCounter = true 654 // store set parameters 655 val SSITSize = WaitTableSize 656 val LFSTSize = 32 657 val SSIDWidth = log2Up(LFSTSize) 658 val LFSTWidth = 4 659 val StoreSetEnable = true // LWT will be disabled if SS is enabled 660 val LFSTEnable = true 661 662 val PCntIncrStep: Int = 6 663 val numPCntHc: Int = 25 664 val numPCntPtw: Int = 19 665 666 val numCSRPCntFrontend = 8 667 val numCSRPCntCtrl = 8 668 val numCSRPCntLsu = 8 669 val numCSRPCntHc = 5 670 val printEventCoding = true 671 672 // Parameters for Sdtrig extension 673 protected val TriggerNum = 4 674 protected val TriggerChainMaxLength = 2 675} 676