coreplex => subsystem

src/main/scala/amba/axi4/AsyncCrossing.scala

@@ -7,7 +7,7 @@ import freechips.rocketchip.config.Parameters
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._
-import freechips.rocketchip.coreplex.{CrossingWrapper, AsynchronousCrossing}
+import freechips.rocketchip.subsystem.{CrossingWrapper, AsynchronousCrossing}
 
 class AXI4AsyncCrossingSource(sync: Int = 3)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/devices/debug/Periphery.scala

@@ -5,7 +5,7 @@ package freechips.rocketchip.devices.debug
 import Chisel._
 import chisel3.core.{IntParam, Input, Output}
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.HasPeripheryBus
+import freechips.rocketchip.subsystem.HasPeripheryBus
 import freechips.rocketchip.devices.tilelink._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.jtag._

src/main/scala/devices/tilelink/BootROM.scala

@@ -4,7 +4,7 @@ package freechips.rocketchip.devices.tilelink
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._
@@ -58,7 +58,7 @@ class TLROM(val base: BigInt, val size: Int, contentsDelayed: => Seq[Byte], exec
   }
 }
 
-/** Adds a boot ROM that contains the DTB describing the system's coreplex. */
+/** Adds a boot ROM that contains the DTB describing the system's subsystem. */
 trait HasPeripheryBootROM extends HasPeripheryBus {
   val dtb: DTB
   private val params = p(BootROMParams)
@@ -74,7 +74,7 @@ trait HasPeripheryBootROM extends HasPeripheryBus {
   bootrom.node := pbus.toVariableWidthSlaves
 }
 
-/** Coreplex will power-on running at 0x10040 (BootROM) */
+/** Subsystem will power-on running at 0x10040 (BootROM) */
 trait HasPeripheryBootROMModuleImp extends LazyModuleImp
     with HasResetVectorWire {
   val outer: HasPeripheryBootROM

src/main/scala/devices/tilelink/BusBypass.scala

@@ -4,7 +4,7 @@ package freechips.rocketchip.devices.tilelink
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.HasPeripheryBus
+import freechips.rocketchip.subsystem.HasPeripheryBus
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._

src/main/scala/devices/tilelink/CLINT.scala

@@ -4,7 +4,7 @@ package freechips.rocketchip.devices.tilelink
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.HasPeripheryBus
+import freechips.rocketchip.subsystem.HasPeripheryBus
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.regmapper._
 import freechips.rocketchip.tilelink._
@@ -12,7 +12,7 @@ import freechips.rocketchip.interrupts._
 import freechips.rocketchip.util._
 import scala.math.{min,max}
 
-object ClintConsts
+object CLINTConsts
 {
   def msipOffset(hart: Int) = hart * msipBytes
   def timecmpOffset(hart: Int) = 0x4000 + hart * timecmpBytes
@@ -25,16 +25,16 @@ object ClintConsts
   def ints = 2
 }
 
-case class ClintParams(baseAddress: BigInt = 0x02000000, intStages: Int = 0)
+case class CLINTParams(baseAddress: BigInt = 0x02000000, intStages: Int = 0)
 {
-  def address = AddressSet(baseAddress, ClintConsts.size-1)
+  def address = AddressSet(baseAddress, CLINTConsts.size-1)
 }
 
-case object ClintKey extends Field(ClintParams())
+case object CLINTKey extends Field(CLINTParams())
 
-class CoreplexLocalInterrupter(params: ClintParams, beatBytes: Int)(implicit p: Parameters) extends LazyModule
+class CLINT(params: CLINTParams, beatBytes: Int)(implicit p: Parameters) extends LazyModule
 {
-  import ClintConsts._
+  import CLINTConsts._
 
   // clint0 => at most 4095 devices
   val device = new SimpleDevice("clint", Seq("riscv,clint0")) {
@@ -90,8 +90,8 @@ class CoreplexLocalInterrupter(params: ClintParams, beatBytes: Int)(implicit p:
   }
 }
 
-/** Trait that will connect a Clint to a coreplex */
-trait HasPeripheryClint extends HasPeripheryBus {
-  val clint = LazyModule(new CoreplexLocalInterrupter(p(ClintKey), pbus.beatBytes))
+/** Trait that will connect a CLINT to a subsystem */
+trait HasPeripheryCLINT extends HasPeripheryBus {
+  val clint = LazyModule(new CLINT(p(CLINTKey), pbus.beatBytes))
   clint.node := pbus.toVariableWidthSlaves
 }

src/main/scala/devices/tilelink/Error.scala

@@ -4,7 +4,7 @@ package freechips.rocketchip.devices.tilelink
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.HasSystemBus
+import freechips.rocketchip.subsystem.HasSystemBus
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._

src/main/scala/devices/tilelink/MaskROM.scala

@@ -3,7 +3,7 @@
 package freechips.rocketchip.devices.tilelink
 
 import Chisel._
-import freechips.rocketchip.coreplex.{HasPeripheryBus}
+import freechips.rocketchip.subsystem.{HasPeripheryBus}
 import freechips.rocketchip.config.{Field, Parameters}
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._

src/main/scala/devices/tilelink/Plic.scala

@@ -5,7 +5,7 @@ package freechips.rocketchip.devices.tilelink
 import Chisel._
 import Chisel.ImplicitConversions._
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.{HasInterruptBus, HasPeripheryBus}
+import freechips.rocketchip.subsystem.{HasInterruptBus, HasPeripheryBus}
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.regmapper._
 import freechips.rocketchip.tilelink._
@@ -268,7 +268,7 @@ class TLPLIC(params: PLICParams, beatBytes: Int)(implicit p: Parameters) extends
   }
 }
 
-/** Trait that will connect a PLIC to a coreplex */
+/** Trait that will connect a PLIC to a subsystem */
 trait HasPeripheryPLIC extends HasInterruptBus with HasPeripheryBus {
   val plic  = LazyModule(new TLPLIC(p(PLICKey), pbus.beatBytes))
   plic.node := pbus.toVariableWidthSlaves

src/main/scala/devices/tilelink/Zero.scala

@@ -4,7 +4,7 @@ package freechips.rocketchip.devices.tilelink
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.HasMemoryBus
+import freechips.rocketchip.subsystem.HasMemoryBus
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._
 

src/main/scala/diplomacy/Resources.scala

@@ -211,7 +211,7 @@ case class Resource(owner: Device, key: String)
   }
 }
 
-/** The resource binding scope for a LazyModule that generates a device tree (currently Coreplex only). */
+/** The resource binding scope for a LazyModule that generates a device tree (currently Subsystem only). */
 trait BindingScope
 {
   this: LazyModule =>

src/main/scala/groundtest/Configs.scala

@@ -5,13 +5,13 @@ package freechips.rocketchip.groundtest
 
 import Chisel._
 import freechips.rocketchip.config.Config
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.rocket.{DCacheParams}
 import freechips.rocketchip.tile.{MaxHartIdBits, XLen}
 
 /** Actual testing target Configs */
 
-class TraceGenConfig extends Config(new WithTraceGen(List.fill(2){ DCacheParams(nSets = 16, nWays = 1) }) ++ new BaseCoreplexConfig)
+class TraceGenConfig extends Config(new WithTraceGen(List.fill(2){ DCacheParams(nSets = 16, nWays = 1) }) ++ new BaseSubsystemConfig)
 
 class TraceGenBufferlessConfig extends Config(new WithBufferlessBroadcastHub ++ new TraceGenConfig)
 

src/main/scala/groundtest/Coreplex.scala

@@ -7,7 +7,7 @@ import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.interrupts._
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.tile._
 
@@ -15,7 +15,7 @@ import scala.math.max
 
 case object TileId extends Field[Int]
 
-class GroundTestCoreplex(implicit p: Parameters) extends BaseCoreplex
+class GroundTestSubsystem(implicit p: Parameters) extends BaseSubsystem
     with HasMasterAXI4MemPort
     with HasPeripheryTestRAMSlave
     with HasInterruptBus {
@@ -37,10 +37,10 @@ class GroundTestCoreplex(implicit p: Parameters) extends BaseCoreplex
   val pbusRAM = LazyModule(new TLRAM(AddressSet(testRamAddr, 0xffff), true, false, pbus.beatBytes))
   pbusRAM.node := pbus.toVariableWidthSlaves
 
-  override lazy val module = new GroundTestCoreplexModule(this)
+  override lazy val module = new GroundTestSubsystemModule(this)
 }
 
-class GroundTestCoreplexModule[+L <: GroundTestCoreplex](_outer: L) extends BaseCoreplexModule(_outer)
+class GroundTestSubsystemModule[+L <: GroundTestSubsystem](_outer: L) extends BaseSubsystemModule(_outer)
     with HasMasterAXI4MemPortModuleImp {
   val success = IO(Bool(OUTPUT))
 

src/main/scala/groundtest/TestHarness.scala

@@ -9,7 +9,7 @@ import freechips.rocketchip.diplomacy.LazyModule
 
 class TestHarness(implicit p: Parameters) extends Module {
   val io = new Bundle { val success = Bool(OUTPUT) }
-  val dut = Module(LazyModule(new GroundTestCoreplex).module)
+  val dut = Module(LazyModule(new GroundTestSubsystem).module)
   io.success := dut.success
   dut.connectSimAXIMem()
 }

src/main/scala/groundtest/Tile.scala

@@ -6,7 +6,7 @@ package freechips.rocketchip.groundtest
 import Chisel._
 import freechips.rocketchip.config._
 import freechips.rocketchip.diplomacy._
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.interrupts._
 import freechips.rocketchip.rocket.{DCache, RocketCoreParams}
 import freechips.rocketchip.tile._

src/main/scala/rocket/BTB.scala

@@ -6,7 +6,7 @@ package freechips.rocketchip.rocket
 import Chisel._
 import Chisel.ImplicitConversions._
 import freechips.rocketchip.config.Parameters
-import freechips.rocketchip.coreplex.CacheBlockBytes
+import freechips.rocketchip.subsystem.CacheBlockBytes
 import freechips.rocketchip.tile.HasCoreParameters
 import freechips.rocketchip.util._
 

src/main/scala/rocket/DCache.scala

@@ -5,7 +5,7 @@ package freechips.rocketchip.rocket
 import Chisel._
 import Chisel.ImplicitConversions._
 import freechips.rocketchip.config.Parameters
-import freechips.rocketchip.coreplex.{RocketTilesKey}
+import freechips.rocketchip.subsystem.{RocketTilesKey}
 import freechips.rocketchip.diplomacy.{AddressSet, RegionType}
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._

src/main/scala/rocket/Frontend.scala

@@ -7,7 +7,7 @@ import Chisel._
 import Chisel.ImplicitConversions._
 import chisel3.core.withReset
 import freechips.rocketchip.config._
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.tile._

src/main/scala/rocket/HellaCache.scala

@@ -6,7 +6,7 @@ package freechips.rocketchip.rocket
 import Chisel._
 import chisel3.experimental.dontTouch
 import freechips.rocketchip.config.{Parameters, Field}
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tile._
 import freechips.rocketchip.tilelink._

src/main/scala/rocket/ICache.scala

@@ -6,7 +6,7 @@ package freechips.rocketchip.rocket
 import Chisel._
 import Chisel.ImplicitConversions._
 import freechips.rocketchip.config.Parameters
-import freechips.rocketchip.coreplex.RocketTilesKey
+import freechips.rocketchip.subsystem.RocketTilesKey
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.tile._
 import freechips.rocketchip.tilelink._

src/main/scala/rocket/PTW.scala

@@ -6,7 +6,7 @@ package freechips.rocketchip.rocket
 import Chisel._
 import Chisel.ImplicitConversions._
 import freechips.rocketchip.config.Parameters
-import freechips.rocketchip.coreplex.CacheBlockBytes
+import freechips.rocketchip.subsystem.CacheBlockBytes
 import freechips.rocketchip.tile._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._

src/main/scala/rocket/TLB.scala

@@ -7,7 +7,7 @@ import Chisel._
 import Chisel.ImplicitConversions._
 
 import freechips.rocketchip.config.{Field, Parameters}
-import freechips.rocketchip.coreplex.CacheBlockBytes
+import freechips.rocketchip.subsystem.CacheBlockBytes
 import freechips.rocketchip.diplomacy.RegionType
 import freechips.rocketchip.tile.{XLen, CoreModule, CoreBundle}
 import freechips.rocketchip.tilelink._

src/main/scala/subsystem/BaseSubsystem.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config.Parameters
@@ -9,14 +9,14 @@ import freechips.rocketchip.tilelink._
 import freechips.rocketchip.devices.tilelink._
 import freechips.rocketchip.util._
 
-/** BareCoreplex is the root class for creating a coreplex sub-system */
-abstract class BareCoreplex(implicit p: Parameters) extends LazyModule with BindingScope {
+/** BareSubsystem is the root class for creating a subsystem */
+abstract class BareSubsystem(implicit p: Parameters) extends LazyModule with BindingScope {
   lazy val dts = DTS(bindingTree)
   lazy val dtb = DTB(dts)
   lazy val json = JSON(bindingTree)
 }
 
-abstract class BareCoreplexModule[+L <: BareCoreplex](_outer: L) extends LazyModuleImp(_outer) {
+abstract class BareSubsystemModule[+L <: BareSubsystem](_outer: L) extends LazyModuleImp(_outer) {
   val outer = _outer
   ElaborationArtefacts.add("graphml", outer.graphML)
   ElaborationArtefacts.add("dts", outer.dts)
@@ -25,13 +25,13 @@ abstract class BareCoreplexModule[+L <: BareCoreplex](_outer: L) extends LazyMod
   println(outer.dts)
 }
 
-/** Base Coreplex class with no peripheral devices or ports added */
-abstract class BaseCoreplex(implicit p: Parameters) extends BareCoreplex
+/** Base Subsystem class with no peripheral devices or ports added */
+abstract class BaseSubsystem(implicit p: Parameters) extends BareSubsystem
     with HasInterruptBus
     with HasSystemBus
     with HasPeripheryBus
     with HasMemoryBus {
-  override val module: BaseCoreplexModule[BaseCoreplex]
+  override val module: BaseSubsystemModule[BaseSubsystem]
 
   // Make topManagers an Option[] so as to avoid LM name reflection evaluating it...
   lazy val topManagers = Some(ManagerUnification(sharedMemoryTLEdge.manager.managers))
@@ -59,7 +59,7 @@ abstract class BaseCoreplex(implicit p: Parameters) extends BareCoreplex
   }
 }
 
-abstract class BaseCoreplexModule[+L <: BaseCoreplex](_outer: L) extends BareCoreplexModule(_outer) {
+abstract class BaseSubsystemModule[+L <: BaseSubsystem](_outer: L) extends BareSubsystemModule(_outer) {
   println("Generated Address Map")
   private val aw = (outer.sharedMemoryTLEdge.bundle.addressBits-1)/4 + 1
   private val fmt = s"\t%${aw}x - %${aw}x %c%c%c%c%c %s"

src/main/scala/subsystem/Configs.scala

@@ -1,7 +1,7 @@
 // See LICENSE.SiFive for license details.
 // See LICENSE.Berkeley for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config._
@@ -13,7 +13,7 @@ import freechips.rocketchip.tile._
 import freechips.rocketchip.tilelink._
 import freechips.rocketchip.util._
 
-class BaseCoreplexConfig extends Config ((site, here, up) => {
+class BaseSubsystemConfig extends Config ((site, here, up) => {
   // Tile parameters
   case PgLevels => if (site(XLen) == 64) 3 /* Sv39 */ else 2 /* Sv32 */
   case XLen => 64 // Applies to all cores
@@ -155,8 +155,8 @@ class WithIncoherentTiles extends Config((site, here, up) => {
   case RocketCrossingKey => up(RocketCrossingKey, site) map { r =>
     r.copy(master = r.master.copy(cork = Some(true)))
   }
-  case BankedL2Key => up(BankedL2Key, site).copy(coherenceManager = { coreplex =>
-    val ww = LazyModule(new TLWidthWidget(coreplex.sbusBeatBytes)(coreplex.p))
+  case BankedL2Key => up(BankedL2Key, site).copy(coherenceManager = { subsystem =>
+    val ww = LazyModule(new TLWidthWidget(subsystem.sbusBeatBytes)(subsystem.p))
     (ww.node, ww.node, () => None)
   })
 })

src/main/scala/subsystem/CrossingWrapper.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config._
@@ -11,16 +11,16 @@ import freechips.rocketchip.interrupts._
 import freechips.rocketchip.util._
 
 /** Enumerates the three types of clock crossing between tiles and system bus */
-sealed trait CoreplexClockCrossing
+sealed trait SubsystemClockCrossing
 {
   def sameClock = this match {
     case _: SynchronousCrossing => true
     case _ => false
   }
 }
-case class SynchronousCrossing(params: BufferParams = BufferParams.default) extends CoreplexClockCrossing
-case class RationalCrossing(direction: RationalDirection = FastToSlow) extends CoreplexClockCrossing
-case class AsynchronousCrossing(depth: Int, sync: Int = 3) extends CoreplexClockCrossing
+case class SynchronousCrossing(params: BufferParams = BufferParams.default) extends SubsystemClockCrossing
+case class RationalCrossing(direction: RationalDirection = FastToSlow) extends SubsystemClockCrossing
+case class AsynchronousCrossing(depth: Int, sync: Int = 3) extends SubsystemClockCrossing
 
 private case class CrossingCheck(out: Boolean, source: BaseNode, sink: BaseNode)
 
@@ -77,13 +77,13 @@ trait HasCrossingMethods extends LazyModule with LazyScope
   def crossTLRationalIn (direction: RationalDirection)(implicit p: Parameters): TLNode = crossTLRationalInOut(false)(direction)
   def crossTLRationalOut(direction: RationalDirection)(implicit p: Parameters): TLNode = crossTLRationalInOut(true )(direction)
 
-  def crossTLIn(arg: CoreplexClockCrossing)(implicit p: Parameters): TLNode = arg match {
+  def crossTLIn(arg: SubsystemClockCrossing)(implicit p: Parameters): TLNode = arg match {
     case x: SynchronousCrossing  => crossTLSyncIn(x.params)
     case x: AsynchronousCrossing => crossTLAsyncIn(x.depth, x.sync)
     case x: RationalCrossing     => crossTLRationalIn(x.direction)
   }
 
-  def crossTLOut(arg: CoreplexClockCrossing)(implicit p: Parameters): TLNode = arg match {
+  def crossTLOut(arg: SubsystemClockCrossing)(implicit p: Parameters): TLNode = arg match {
     case x: SynchronousCrossing  => crossTLSyncOut(x.params)
     case x: AsynchronousCrossing => crossTLAsyncOut(x.depth, x.sync)
     case x: RationalCrossing     => crossTLRationalOut(x.direction)
@@ -112,13 +112,13 @@ trait HasCrossingMethods extends LazyModule with LazyScope
   def crossAXI4AsyncIn (depth: Int = 8, sync: Int = 3)(implicit p: Parameters): AXI4Node = crossAXI4AsyncInOut(false)(depth, sync)
   def crossAXI4AsyncOut(depth: Int = 8, sync: Int = 3)(implicit p: Parameters): AXI4Node = crossAXI4AsyncInOut(true )(depth, sync)
 
-  def crossAXI4In(arg: CoreplexClockCrossing)(implicit p: Parameters): AXI4Node = arg match {
+  def crossAXI4In(arg: SubsystemClockCrossing)(implicit p: Parameters): AXI4Node = arg match {
     case x: SynchronousCrossing  => crossAXI4SyncIn(x.params)
     case x: AsynchronousCrossing => crossAXI4AsyncIn(x.depth, x.sync)
     case x: RationalCrossing     => throw new IllegalArgumentException("AXI4 Rational crossing unimplemented")
   }
 
-  def crossAXI4Out(arg: CoreplexClockCrossing)(implicit p: Parameters): AXI4Node = arg match {
+  def crossAXI4Out(arg: SubsystemClockCrossing)(implicit p: Parameters): AXI4Node = arg match {
     case x: SynchronousCrossing  => crossAXI4SyncOut(x.params)
     case x: AsynchronousCrossing => crossAXI4AsyncOut(x.depth, x.sync)
     case x: RationalCrossing     => throw new IllegalArgumentException("AXI4 Rational crossing unimplemented")
@@ -163,26 +163,26 @@ trait HasCrossingMethods extends LazyModule with LazyScope
   def crossIntRationalIn (alreadyRegistered: Boolean = false)(implicit p: Parameters): IntNode = crossIntRationalInOut(false)(alreadyRegistered)
   def crossIntRationalOut(alreadyRegistered: Boolean = false)(implicit p: Parameters): IntNode = crossIntRationalInOut(true )(alreadyRegistered)
 
-  def crossIntIn(arg: CoreplexClockCrossing, alreadyRegistered: Boolean)(implicit p: Parameters): IntNode = arg match {
+  def crossIntIn(arg: SubsystemClockCrossing, alreadyRegistered: Boolean)(implicit p: Parameters): IntNode = arg match {
     case x: SynchronousCrossing  => crossIntSyncIn(alreadyRegistered)
     case x: AsynchronousCrossing => crossIntAsyncIn(x.sync, alreadyRegistered)
     case x: RationalCrossing     => crossIntRationalIn(alreadyRegistered)
   }
 
-  def crossIntOut(arg: CoreplexClockCrossing, alreadyRegistered: Boolean)(implicit p: Parameters): IntNode = arg match {
+  def crossIntOut(arg: SubsystemClockCrossing, alreadyRegistered: Boolean)(implicit p: Parameters): IntNode = arg match {
     case x: SynchronousCrossing  => crossIntSyncOut(alreadyRegistered)
     case x: AsynchronousCrossing => crossIntAsyncOut(x.sync, alreadyRegistered)
     case x: RationalCrossing     => crossIntRationalOut(alreadyRegistered)
   }
 
-  def crossIntIn (arg: CoreplexClockCrossing)(implicit p: Parameters): IntNode = crossIntIn (arg, false)
-  def crossIntOut(arg: CoreplexClockCrossing)(implicit p: Parameters): IntNode = crossIntOut(arg, false)
+  def crossIntIn (arg: SubsystemClockCrossing)(implicit p: Parameters): IntNode = crossIntIn (arg, false)
+  def crossIntOut(arg: SubsystemClockCrossing)(implicit p: Parameters): IntNode = crossIntOut(arg, false)
 }
 
 trait HasCrossing extends HasCrossingMethods
 {
   this: LazyModule =>
-  val crossing: CoreplexClockCrossing
+  val crossing: SubsystemClockCrossing
 
   def crossTLIn   (implicit p: Parameters): TLNode  = crossTLIn   (crossing)
   def crossTLOut  (implicit p: Parameters): TLNode  = crossTLOut  (crossing)
@@ -195,4 +195,4 @@ trait HasCrossing extends HasCrossingMethods
   def crossIntOut(alreadyRegistered: Boolean)(implicit p: Parameters): IntNode = crossIntOut(crossing, alreadyRegistered)
 }
 
-class CrossingWrapper(val crossing: CoreplexClockCrossing)(implicit p: Parameters) extends SimpleLazyModule with HasCrossing
+class CrossingWrapper(val crossing: SubsystemClockCrossing)(implicit p: Parameters) extends SimpleLazyModule with HasCrossing

src/main/scala/subsystem/FrontBus.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}

src/main/scala/subsystem/HasTiles.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import chisel3.experimental.dontTouch

src/main/scala/subsystem/InterruptBus.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}

src/main/scala/subsystem/MemoryBus.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config._
@@ -22,11 +22,11 @@ case object BroadcastKey extends Field(BroadcastParams())
 case class BankedL2Params(
   nMemoryChannels:  Int = 1,
   nBanksPerChannel: Int = 1,
-  coherenceManager: HasMemoryBus => (TLInwardNode, TLOutwardNode, () => Option[Bool]) = { coreplex =>
-    implicit val p = coreplex.p
+  coherenceManager: HasMemoryBus => (TLInwardNode, TLOutwardNode, () => Option[Bool]) = { subsystem =>
+    implicit val p = subsystem.p
     val BroadcastParams(nTrackers, bufferless) = p(BroadcastKey)
-    val bh = LazyModule(new TLBroadcast(coreplex.memBusBlockBytes, nTrackers, bufferless))
-    val ww = LazyModule(new TLWidthWidget(coreplex.sbusBeatBytes))
+    val bh = LazyModule(new TLBroadcast(subsystem.memBusBlockBytes, nTrackers, bufferless))
+    val ww = LazyModule(new TLWidthWidget(subsystem.sbusBeatBytes))
     ww.node :*= bh.node
     (bh.node, ww.node, () => None)
   }) {

src/main/scala/subsystem/PeripheryBus.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}

src/main/scala/subsystem/Ports.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}

src/main/scala/subsystem/RTC.scala

@@ -1,13 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.diplomacy.{LazyModuleImp, DTSTimebase}
-import freechips.rocketchip.devices.tilelink.HasPeripheryClint
+import freechips.rocketchip.devices.tilelink.HasPeripheryCLINT
 
 trait HasRTCModuleImp extends LazyModuleImp {
-  val outer: HasPeripheryClint
+  val outer: HasPeripheryCLINT
   private val pbusFreq = outer.p(PeripheryBusKey).frequency
   private val rtcFreq = outer.p(DTSTimebase)
   private val internalPeriod: BigInt = pbusFreq / rtcFreq

src/main/scala/subsystem/ResetVector.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 

src/main/scala/subsystem/RocketSubsystem.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
@@ -18,7 +18,7 @@ case class TileMasterPortParams(
     addBuffers: Int = 0,
     cork: Option[Boolean] = None) {
 
-  def adapt(coreplex: HasPeripheryBus)
+  def adapt(subsystem: HasPeripheryBus)
            (masterNode: TLOutwardNode)
            (implicit p: Parameters, sourceInfo: SourceInfo): TLOutwardNode = {
     val tile_master_cork = cork.map(u => (LazyModule(new TLCacheCork(unsafe = u))))
@@ -33,22 +33,22 @@ case class TileSlavePortParams(
     addBuffers: Int = 0,
     blockerCtrlAddr: Option[BigInt] = None) {
 
-  def adapt(coreplex: HasPeripheryBus)
+  def adapt(subsystem: HasPeripheryBus)
            (slaveNode: TLInwardNode)
            (implicit p: Parameters, sourceInfo: SourceInfo): TLInwardNode = {
     val tile_slave_blocker =
       blockerCtrlAddr
-        .map(BasicBusBlockerParams(_, coreplex.pbus.beatBytes, coreplex.sbus.beatBytes))
+        .map(BasicBusBlockerParams(_, subsystem.pbus.beatBytes, subsystem.sbus.beatBytes))
         .map(bp => LazyModule(new BasicBusBlocker(bp)))
 
-    tile_slave_blocker.foreach { _.controlNode := coreplex.pbus.toVariableWidthSlaves }
+    tile_slave_blocker.foreach { _.controlNode := subsystem.pbus.toVariableWidthSlaves }
     (Seq() ++ tile_slave_blocker.map(_.node) ++ TLBuffer.chain(addBuffers))
     .foldLeft(slaveNode)(_ :*= _)
   }
 }
 
 case class RocketCrossingParams(
-    crossingType: CoreplexClockCrossing = SynchronousCrossing(),
+    crossingType: SubsystemClockCrossing = SynchronousCrossing(),
     master: TileMasterPortParams = TileMasterPortParams(),
     slave: TileSlavePortParams = TileSlavePortParams()) {
   def knownRatio: Option[Int] = crossingType match {
@@ -63,7 +63,7 @@ case object RocketCrossingKey extends Field[Seq[RocketCrossingParams]](List(Rock
 trait HasRocketTiles extends HasTiles
     with HasPeripheryBus
     with HasPeripheryPLIC
-    with HasPeripheryClint
+    with HasPeripheryCLINT
     with HasPeripheryDebug {
   val module: HasRocketTilesModuleImp
 
@@ -163,13 +163,13 @@ trait HasRocketTilesModuleImp extends HasTilesModuleImp
   val outer: HasRocketTiles
 }
 
-class RocketCoreplex(implicit p: Parameters) extends BaseCoreplex
+class RocketSubsystem(implicit p: Parameters) extends BaseSubsystem
     with HasRocketTiles {
   val tiles = rocketTiles
-  override lazy val module = new RocketCoreplexModule(this)
+  override lazy val module = new RocketSubsystemModule(this)
 }
 
-class RocketCoreplexModule[+L <: RocketCoreplex](_outer: L) extends BaseCoreplexModule(_outer)
+class RocketSubsystemModule[+L <: RocketSubsystem](_outer: L) extends BaseSubsystemModule(_outer)
     with HasRocketTilesModuleImp {
   tile_inputs.zip(outer.hartIdList).foreach { case(wire, i) =>
     wire.clock := clock

src/main/scala/subsystem/SystemBus.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package freechips.rocketchip.coreplex
+package freechips.rocketchip.subsystem
 
 import Chisel._
 import freechips.rocketchip.config.{Field, Parameters}

src/main/scala/system/Configs.scala

@@ -5,13 +5,13 @@ package freechips.rocketchip.system
 
 import Chisel._
 import freechips.rocketchip.config.Config
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.devices.debug.{IncludeJtagDTM, JtagDTMKey}
 import freechips.rocketchip.diplomacy._
 
-class WithJtagDTMSystem extends freechips.rocketchip.coreplex.WithJtagDTM
+class WithJtagDTMSystem extends freechips.rocketchip.subsystem.WithJtagDTM
 
-class BaseConfig extends Config(new BaseCoreplexConfig().alter((site,here,up) => {
+class BaseConfig extends Config(new BaseSubsystemConfig().alter((site,here,up) => {
   // DTS descriptive parameters
   case DTSModel => "freechips,rocketchip-unknown"
   case DTSCompat => Nil

src/main/scala/system/ExampleRocketSystem.scala

@@ -4,12 +4,12 @@ package freechips.rocketchip.system
 
 import Chisel._
 import freechips.rocketchip.config.Parameters
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.devices.tilelink._
 import freechips.rocketchip.util.DontTouch
 
-/** Example Top with periphery devices and ports, and a Rocket coreplex */
-class ExampleRocketSystem(implicit p: Parameters) extends RocketCoreplex
+/** Example Top with periphery devices and ports, and a Rocket subsystem */
+class ExampleRocketSystem(implicit p: Parameters) extends RocketSubsystem
     with HasAsyncExtInterrupts
     with HasMasterAXI4MemPort
     with HasMasterAXI4MMIOPort
@@ -19,7 +19,7 @@ class ExampleRocketSystem(implicit p: Parameters) extends RocketCoreplex
   override lazy val module = new ExampleRocketSystemModule(this)
 }
 
-class ExampleRocketSystemModule[+L <: ExampleRocketSystem](_outer: L) extends RocketCoreplexModule(_outer)
+class ExampleRocketSystemModule[+L <: ExampleRocketSystem](_outer: L) extends RocketSubsystemModule(_outer)
     with HasRTCModuleImp
     with HasExtInterruptsModuleImp
     with HasMasterAXI4MemPortModuleImp

src/main/scala/system/Generator.scala

@@ -2,13 +2,13 @@
 
 package freechips.rocketchip.system
 
-import freechips.rocketchip.coreplex.RocketTilesKey
+import freechips.rocketchip.subsystem.RocketTilesKey
 import freechips.rocketchip.tile.XLen
 import freechips.rocketchip.util.GeneratorApp
 
 import scala.collection.mutable.LinkedHashSet
 
-/** A Generator for platforms containing Rocket Coreplexes */
+/** A Generator for platforms containing Rocket Subsystemes */
 object Generator extends GeneratorApp {
 
   val rv64RegrTestNames = LinkedHashSet(
@@ -50,7 +50,7 @@ object Generator extends GeneratorApp {
   override def addTestSuites {
     import DefaultTestSuites._
     val xlen = params(XLen)
-    // TODO: for now only generate tests for the first core in the first coreplex
+    // TODO: for now only generate tests for the first core in the first subsystem
     val tileParams = params(RocketTilesKey).head
     val coreParams = tileParams.core
     val vm = coreParams.useVM

src/main/scala/tile/BaseTile.scala

@@ -5,7 +5,7 @@ package freechips.rocketchip.tile
 import Chisel._
 
 import freechips.rocketchip.config._
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.interrupts._
 import freechips.rocketchip.rocket._
@@ -122,7 +122,7 @@ trait HasTileParameters {
 }
 
 /** Base class for all Tiles that use TileLink */
-abstract class BaseTile(tileParams: TileParams, val crossing: CoreplexClockCrossing)
+abstract class BaseTile(tileParams: TileParams, val crossing: SubsystemClockCrossing)
                        (implicit p: Parameters) extends LazyModule with HasTileParameters with HasCrossing
 {
   def module: BaseTileModuleImp[BaseTile]

src/main/scala/tile/Interrupts.scala

@@ -18,7 +18,7 @@ class TileInterrupts(implicit p: Parameters) extends CoreBundle()(p) {
   val lip = Vec(coreParams.nLocalInterrupts, Bool())
 }
 
-// Use diplomatic interrupts to external interrupts from the coreplex into the tile
+// Use diplomatic interrupts to external interrupts from the subsystem into the tile
 trait HasExternalInterrupts { this: BaseTile =>
 
   val intInwardNode = intXbar.intnode
@@ -50,7 +50,7 @@ trait HasExternalInterrupts { this: BaseTile =>
 
   // TODO: the order of the following two functions must match, and
   //         also match the order which things are connected to the
-  //         per-tile crossbar in coreplex.HasRocketTiles
+  //         per-tile crossbar in subsystem.HasRocketTiles
 
   // debug, msip, mtip, meip, seip, lip offsets in CSRs
   def csrIntMap: List[Int] = {

src/main/scala/tile/L1Cache.scala

@@ -5,7 +5,7 @@ package freechips.rocketchip.tile
 import Chisel._
 
 import freechips.rocketchip.config.{Parameters, Field}
-import freechips.rocketchip.coreplex.CacheBlockBytes
+import freechips.rocketchip.subsystem.CacheBlockBytes
 import freechips.rocketchip.tilelink.ClientMetadata
 import freechips.rocketchip.util._
 

src/main/scala/tile/LazyRoCC.scala

@@ -6,7 +6,7 @@ package freechips.rocketchip.tile
 import Chisel._
 
 import freechips.rocketchip.config._
-import freechips.rocketchip.coreplex._
+import freechips.rocketchip.subsystem._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.rocket._
 import freechips.rocketchip.tilelink._

src/main/scala/tile/RocketTile.scala

@@ -5,7 +5,7 @@ package freechips.rocketchip.tile
 
 import Chisel._
 import freechips.rocketchip.config._
-import freechips.rocketchip.coreplex.CoreplexClockCrossing
+import freechips.rocketchip.subsystem.SubsystemClockCrossing
 import freechips.rocketchip.devices.tilelink._
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.interrupts._
@@ -33,7 +33,7 @@ case class RocketTileParams(
 
 class RocketTile(
     val rocketParams: RocketTileParams,
-    crossing: CoreplexClockCrossing)
+    crossing: SubsystemClockCrossing)
   (implicit p: Parameters) extends BaseTile(rocketParams, crossing)(p)
     with HasExternalInterrupts
     with HasLazyRoCC  // implies CanHaveSharedFPU with CanHavePTW with HasHellaCache

src/main/scala/tilelink/AsyncCrossing.scala

@@ -7,7 +7,7 @@ import freechips.rocketchip.config.Parameters
 import freechips.rocketchip.diplomacy._
 import freechips.rocketchip.util._
 import freechips.rocketchip.util.property._
-import freechips.rocketchip.coreplex.{CrossingWrapper, AsynchronousCrossing}
+import freechips.rocketchip.subsystem.{CrossingWrapper, AsynchronousCrossing}
 
 class TLAsyncCrossingSource(sync: Int = 3)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/unittest/Configs.scala

@@ -7,7 +7,7 @@ import freechips.rocketchip.amba.ahb._
 import freechips.rocketchip.amba.apb._
 import freechips.rocketchip.amba.axi4._
 import freechips.rocketchip.config._
-import freechips.rocketchip.coreplex.{BaseCoreplexConfig}
+import freechips.rocketchip.subsystem.{BaseSubsystemConfig}
 import freechips.rocketchip.devices.tilelink._
 import freechips.rocketchip.tilelink._
 
@@ -79,7 +79,7 @@ class WithTLXbarUnitTests extends Config((site, here, up) => {
       Module(new TLMulticlientXbarTest(4,4, txns=2*txns, timeout=timeout)) ) }
 })
 
-class AMBAUnitTestConfig extends Config(new WithAMBAUnitTests ++ new WithTestDuration(10) ++ new BaseCoreplexConfig)
-class TLSimpleUnitTestConfig extends Config(new WithTLSimpleUnitTests ++ new WithTestDuration(10) ++ new BaseCoreplexConfig)
-class TLWidthUnitTestConfig extends Config(new WithTLWidthUnitTests ++ new WithTestDuration(10) ++ new BaseCoreplexConfig)
-class TLXbarUnitTestConfig extends Config(new WithTLXbarUnitTests ++ new WithTestDuration(10) ++ new BaseCoreplexConfig)
+class AMBAUnitTestConfig extends Config(new WithAMBAUnitTests ++ new WithTestDuration(10) ++ new BaseSubsystemConfig)
+class TLSimpleUnitTestConfig extends Config(new WithTLSimpleUnitTests ++ new WithTestDuration(10) ++ new BaseSubsystemConfig)
+class TLWidthUnitTestConfig extends Config(new WithTLWidthUnitTests ++ new WithTestDuration(10) ++ new BaseSubsystemConfig)
+class TLXbarUnitTestConfig extends Config(new WithTLXbarUnitTests ++ new WithTestDuration(10) ++ new BaseSubsystemConfig)

src/main/scala/util/GeneratorUtils.scala

@@ -108,7 +108,7 @@ trait GeneratorApp extends App with HasGeneratorUtilities {
   /** Output software test Makefrags, which provide targets for integration testing. */
   def generateTestSuiteMakefrags {
     addTestSuites
-    writeOutputFile(td, s"$longName.d", TestGeneration.generateMakefrag) // Coreplex-specific test suites
+    writeOutputFile(td, s"$longName.d", TestGeneration.generateMakefrag) // Subsystem-specific test suites
   }
 
   def addTestSuites {