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rocket-chip/src/main/scala/coreplex/Configs.scala

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// See LICENSE for license details.
package coreplex
import Chisel._
import junctions._
import uncore.tilelink._
import uncore.coherence._
import uncore.agents._
import uncore.devices._
import uncore.converters._
import rocket._
import rocket.Util._
import scala.math.max
import scala.collection.mutable.{LinkedHashSet, ListBuffer}
import DefaultTestSuites._
import cde.{Parameters, Config, Dump, Knob, CDEMatchError}
object ConfigUtils {
def max_int(values: Int*): Int = {
values.reduce((a, b) => max(a, b))
}
}
import ConfigUtils._
class BaseCoreplexConfig extends Config (
topDefinitions = { (pname,site,here) =>
type PF = PartialFunction[Any,Any]
def findBy(sname:Any):Any = here[PF](site[Any](sname))(pname)
lazy val innerDataBits = 64
lazy val innerDataBeats = (8 * site(CacheBlockBytes)) / innerDataBits
pname match {
//Memory Parameters
case PAddrBits => 32
case PgLevels => if (site(XLen) == 64) 3 /* Sv39 */ else 2 /* Sv32 */
case ASIdBits => 7
//Params used by all caches
case NSets => findBy(CacheName)
case NWays => findBy(CacheName)
case RowBits => findBy(CacheName)
case NTLBEntries => findBy(CacheName)
case CacheIdBits => findBy(CacheName)
case SplitMetadata => findBy(CacheName)
case "L1I" => {
case NSets => Knob("L1I_SETS") //64
case NWays => Knob("L1I_WAYS") //4
case RowBits => site(TLKey("L1toL2")).dataBitsPerBeat
case NTLBEntries => 8
case CacheIdBits => 0
case SplitMetadata => false
}:PF
case "L1D" => {
case NSets => Knob("L1D_SETS") //64
case NWays => Knob("L1D_WAYS") //4
case RowBits => site(TLKey("L1toL2")).dataBitsPerBeat
case NTLBEntries => 8
case CacheIdBits => 0
case SplitMetadata => false
}:PF
case ECCCode => None
case Replacer => () => new RandomReplacement(site(NWays))
//L1InstCache
case BtbKey => BtbParameters()
//L1DataCache
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case DCacheKey => DCacheConfig(nMSHRs = site(Knob("L1D_MSHRS")))
//L2 Memory System Params
case AmoAluOperandBits => site(XLen)
case NAcquireTransactors => 7
case L2StoreDataQueueDepth => 1
case L2DirectoryRepresentation => new NullRepresentation(site(NTiles))
case BuildL2CoherenceManager => (id: Int, p: Parameters) =>
Module(new L2BroadcastHub()(p.alterPartial({
case InnerTLId => "L1toL2"
case OuterTLId => "L2toMC" })))
case NCachedTileLinkPorts => 1
case NUncachedTileLinkPorts => 1
//Tile Constants
case BuildTiles => {
val env = if(site(UseVM)) List("p","v") else List("p")
site(FPUKey) foreach { case cfg =>
TestGeneration.addSuite(rv32udBenchmarks)
TestGeneration.addSuites(env.map(rv64ufNoDiv))
TestGeneration.addSuites(env.map(rv64udNoDiv))
if (cfg.divSqrt) {
TestGeneration.addSuites(env.map(rv64uf))
TestGeneration.addSuites(env.map(rv64ud))
}
}
if (site(UseAtomics)) TestGeneration.addSuites(env.map(if (site(XLen) == 64) rv64ua else rv32ua))
if (site(UseCompressed)) TestGeneration.addSuites(env.map(if (site(XLen) == 64) rv64uc else rv32uc))
val (rvi, rvu) =
if (site(XLen) == 64) ((if (site(UseVM)) rv64i else rv64pi), rv64u)
else ((if (site(UseVM)) rv32i else rv32pi), rv32u)
TestGeneration.addSuites(rvi.map(_("p")))
TestGeneration.addSuites((if(site(UseVM)) List("v") else List()).flatMap(env => rvu.map(_(env))))
TestGeneration.addSuite(if (site(UseVM)) benchmarks else emptyBmarks)
List.fill(site(NTiles)){ (r: Bool, p: Parameters) =>
Module(new RocketTile(resetSignal = r)(p.alterPartial({
case TLId => "L1toL2"
case NUncachedTileLinkPorts => 1 + site(RoccNMemChannels)
})))
}
}
case BuildRoCC => Nil
case RoccNMemChannels => site(BuildRoCC).map(_.nMemChannels).foldLeft(0)(_ + _)
case RoccNPTWPorts => site(BuildRoCC).map(_.nPTWPorts).foldLeft(0)(_ + _)
//Rocket Core Constants
case CoreInstBits => if (site(UseCompressed)) 16 else 32
case FetchWidth => if (site(UseCompressed)) 2 else 1
case RetireWidth => 1
case UseVM => true
case UseUser => true
case UseDebug => true
case NBreakpoints => 1
case FastLoadWord => true
case FastLoadByte => false
case XLen => 64
case FPUKey => Some(FPUConfig())
case MulDivKey => Some(MulDivConfig())
case UseAtomics => true
case UseCompressed => true
case PLICKey => PLICConfig(site(NTiles), site(UseVM), site(NExtInterrupts), 0)
case DMKey => new DefaultDebugModuleConfig(site(NTiles), site(XLen))
case NCustomMRWCSRs => 0
case ResetVector => BigInt(0x1000)
case MtvecInit => BigInt(0x1010)
case MtvecWritable => true
//Uncore Paramters
case RTCPeriod => 100 // gives 10 MHz RTC assuming 1 GHz uncore clock
case LNEndpoints => site(TLKey(site(TLId))).nManagers + site(TLKey(site(TLId))).nClients
case LNHeaderBits => log2Ceil(site(TLKey(site(TLId))).nManagers) +
log2Up(site(TLKey(site(TLId))).nClients)
case TLKey("L1toL2") => {
val useMEI = site(NTiles) <= 1 && site(NCachedTileLinkPorts) <= 1
TileLinkParameters(
coherencePolicy = (
if (useMEI) new MEICoherence(site(L2DirectoryRepresentation))
else new MESICoherence(site(L2DirectoryRepresentation))),
nManagers = site(NBanksPerMemoryChannel)*site(NMemoryChannels) + 1 /* MMIO */,
nCachingClients = site(NCachedTileLinkPorts),
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nCachelessClients = site(NExternalClients) + site(NUncachedTileLinkPorts),
maxClientXacts = max_int(
// L1 cache
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site(DCacheKey).nMSHRs + 1 /* IOMSHR */,
// RoCC
if (site(BuildRoCC).isEmpty) 1 else site(RoccMaxTaggedMemXacts)),
maxClientsPerPort = if (site(BuildRoCC).isEmpty) 1 else 2,
maxManagerXacts = site(NAcquireTransactors) + 2,
dataBeats = innerDataBeats,
dataBits = site(CacheBlockBytes)*8)
}
case TLKey("L2toMC") =>
TileLinkParameters(
coherencePolicy = new MEICoherence(
new NullRepresentation(site(NBanksPerMemoryChannel))),
nManagers = 1,
nCachingClients = site(NBanksPerMemoryChannel),
nCachelessClients = 0,
maxClientXacts = 1,
maxClientsPerPort = site(NAcquireTransactors) + 2,
maxManagerXacts = 1,
dataBeats = innerDataBeats,
dataBits = site(CacheBlockBytes)*8)
case TLKey("Outermost") => site(TLKey("L2toMC")).copy(
maxClientXacts = site(NAcquireTransactors) + 2,
maxClientsPerPort = site(NBanksPerMemoryChannel),
dataBeats = site(MIFDataBeats))
case TLKey("L2toMMIO") => {
TileLinkParameters(
coherencePolicy = new MICoherence(
new NullRepresentation(site(NBanksPerMemoryChannel))),
nManagers = site(GlobalAddrMap).subMap("io").numSlaves,
nCachingClients = 0,
nCachelessClients = 1,
maxClientXacts = 4,
maxClientsPerPort = 1,
maxManagerXacts = 1,
dataBeats = innerDataBeats,
dataBits = site(CacheBlockBytes) * 8)
}
case TLKey("MMIO_Outermost") => site(TLKey("L2toMMIO")).copy(dataBeats = site(MIFDataBeats))
case BootROMFile => "./bootrom/bootrom.img"
case NTiles => Knob("NTILES")
case NBanksPerMemoryChannel => Knob("NBANKS_PER_MEM_CHANNEL")
case BankIdLSB => 0
case CacheBlockBytes => Dump("CACHE_BLOCK_BYTES", 64)
case CacheBlockOffsetBits => log2Up(here(CacheBlockBytes))
case EnableL2Logging => false
case ExtraCoreplexPorts => (p: Parameters) => new Bundle
case RegressionTestNames => LinkedHashSet(
"rv64ud-v-fcvt",
"rv64ud-p-fdiv",
"rv64ud-v-fadd",
"rv64uf-v-fadd",
"rv64um-v-mul",
"rv64mi-p-breakpoint",
"rv64uc-v-rvc",
"rv64ud-v-structural",
"rv64si-p-wfi",
"rv64um-v-divw",
"rv64ua-v-lrsc",
"rv64ui-v-fence_i",
"rv64ud-v-fcvt_w",
"rv64uf-v-fmin",
"rv64ui-v-sb",
"rv64ua-v-amomax_d",
"rv64ud-v-move",
"rv64ud-v-fclass",
"rv64ua-v-amoand_d",
"rv64ua-v-amoxor_d",
"rv64si-p-sbreak",
"rv64ud-v-fmadd",
"rv64uf-v-ldst",
"rv64um-v-mulh",
"rv64si-p-dirty")
case _ => throw new CDEMatchError
}},
knobValues = {
case "NTILES" => 1
case "NBANKS_PER_MEM_CHANNEL" => 1
case "L1D_MSHRS" => 2
case "L1D_SETS" => 64
case "L1D_WAYS" => 4
case "L1I_SETS" => 64
case "L1I_WAYS" => 4
case _ => throw new CDEMatchError
}
)
class WithNCores(n: Int) extends Config(
knobValues = { case"NTILES" => n; case _ => throw new CDEMatchError })
class WithNBanksPerMemChannel(n: Int) extends Config(
knobValues = {
case "NBANKS_PER_MEM_CHANNEL" => n
case _ => throw new CDEMatchError
})
class WithL2Cache extends Config(
(pname,site,here) => pname match {
case "L2_CAPACITY_IN_KB" => Knob("L2_CAPACITY_IN_KB")
case "L2Bank" => {
case NSets => (((here[Int]("L2_CAPACITY_IN_KB")*1024) /
site(CacheBlockBytes)) /
(site(NBanksPerMemoryChannel)*site(NMemoryChannels))) /
site(NWays)
case NWays => Knob("L2_WAYS")
case RowBits => site(TLKey(site(TLId))).dataBitsPerBeat
case CacheIdBits => log2Ceil(site(NMemoryChannels) * site(NBanksPerMemoryChannel))
case SplitMetadata => Knob("L2_SPLIT_METADATA")
}: PartialFunction[Any,Any]
case NAcquireTransactors => 2
case NSecondaryMisses => 4
case L2DirectoryRepresentation => new FullRepresentation(site(NTiles))
case BuildL2CoherenceManager => (id: Int, p: Parameters) =>
Module(new L2HellaCacheBank()(p.alterPartial({
case CacheId => id
case CacheName => "L2Bank"
case InnerTLId => "L1toL2"
case OuterTLId => "L2toMC"})))
case L2Replacer => () => new SeqRandom(site(NWays))
case _ => throw new CDEMatchError
},
knobValues = { case "L2_WAYS" => 8; case "L2_CAPACITY_IN_KB" => 2048; case "L2_SPLIT_METADATA" => false; case _ => throw new CDEMatchError }
)
class WithBufferlessBroadcastHub extends Config(
(pname, site, here) => pname match {
case BuildL2CoherenceManager => (id: Int, p: Parameters) =>
Module(new BufferlessBroadcastHub()(p.alterPartial({
case InnerTLId => "L1toL2"
case OuterTLId => "L2toMC" })))
})
/**
* WARNING!!! IGNORE AT YOUR OWN PERIL!!!
*
* There is a very restrictive set of conditions under which the stateless
* bridge will function properly. There can only be a single tile. This tile
* MUST use the blocking data cache (L1D_MSHRS == 0) and MUST NOT have an
* uncached channel capable of writes (i.e. a RoCC accelerator).
*
* This is because the stateless bridge CANNOT generate probes, so if your
* system depends on coherence between channels in any way,
* DO NOT use this configuration.
*/
class WithStatelessBridge extends Config (
topDefinitions = (pname, site, here) => pname match {
case BuildL2CoherenceManager => (id: Int, p: Parameters) =>
Module(new ManagerToClientStatelessBridge()(p.alterPartial({
case InnerTLId => "L1toL2"
case OuterTLId => "L2toMC" })))
},
knobValues = {
case "L1D_MSHRS" => 0
case _ => throw new CDEMatchError
}
)
class WithPLRU extends Config(
(pname, site, here) => pname match {
case L2Replacer => () => new SeqPLRU(site(NSets), site(NWays))
case _ => throw new CDEMatchError
})
class WithL2Capacity(size_kb: Int) extends Config(
knobValues = {
case "L2_CAPACITY_IN_KB" => size_kb
case _ => throw new CDEMatchError
})
class WithNL2Ways(n: Int) extends Config(
knobValues = {
case "L2_WAYS" => n
case _ => throw new CDEMatchError
})
class WithRV32 extends Config(
(pname,site,here) => pname match {
case XLen => 32
case UseVM => false
case UseUser => false
case UseAtomics => false
case FPUKey => None
case RegressionTestNames => LinkedHashSet(
"rv32mi-p-ma_addr",
"rv32mi-p-csr",
"rv32ui-p-sh",
"rv32ui-p-lh",
"rv32mi-p-sbreak",
"rv32ui-p-sll")
case _ => throw new CDEMatchError
}
)
class WithBlockingL1 extends Config (
knobValues = {
case "L1D_MSHRS" => 0
case _ => throw new CDEMatchError
}
)
class WithSmallCores extends Config (
topDefinitions = { (pname,site,here) => pname match {
case FPUKey => None
case NTLBEntries => 4
case BtbKey => BtbParameters(nEntries = 0)
case NAcquireTransactors => 2
case _ => throw new CDEMatchError
}},
knobValues = {
case "L1D_SETS" => 64
case "L1D_WAYS" => 1
case "L1I_SETS" => 64
case "L1I_WAYS" => 1
case "L1D_MSHRS" => 0
case _ => throw new CDEMatchError
}
)
class WithRoccExample extends Config(
(pname, site, here) => pname match {
case BuildRoCC => Seq(
RoccParameters(
opcodes = OpcodeSet.custom0,
generator = (p: Parameters) => Module(new AccumulatorExample()(p))),
RoccParameters(
opcodes = OpcodeSet.custom1,
generator = (p: Parameters) => Module(new TranslatorExample()(p)),
nPTWPorts = 1),
RoccParameters(
opcodes = OpcodeSet.custom2,
generator = (p: Parameters) => Module(new CharacterCountExample()(p))))
case RoccMaxTaggedMemXacts => 1
case _ => throw new CDEMatchError
})
class WithSplitL2Metadata extends Config(
knobValues = { case "L2_SPLIT_METADATA" => true; case _ => throw new CDEMatchError })