Refactor package hierarchy and remove legacy bus protocol implementations (#845)

* Refactors package hierarchy.

Additionally:
  - Removes legacy ground tests and configs
  - Removes legacy bus protocol implementations
  - Removes NTiles
  - Adds devices package
  - Adds more functions to util package

.travis.yml

@@ -84,7 +84,3 @@ jobs:
       script:
         - travis_wait 80 make emulator-ndebug -C regression SUITE=RocketSuiteA JVM_MEMORY=3G
         - travis_wait 80 make emulator-regression-tests -C regression SUITE=RocketSuiteA JVM_MEMORY=3G
-    - <<: *test
-      script:
-        - travis_wait 80 make emulator-ndebug -C regression SUITE=GroundtestSuite JVM_MEMORY=3G
-        - travis_wait 80 make emulator-regression-tests -C regression SUITE=GroundtestSuite JVM_MEMORY=3G

Makefrag

@@ -4,7 +4,7 @@ $(error Please set environment variable RISCV. Please take a look at README)
 endif
 
 MODEL ?= TestHarness
-PROJECT ?= rocketchip
+PROJECT ?= freechips.rocketchip.chip
 CFG_PROJECT ?= $(PROJECT)
 CONFIG ?= DefaultConfig
 # TODO: For now must match rocketchip.Generator

README.md

@@ -154,13 +154,20 @@ Some of these packages provide Scala utilities for generator configuration,
 while other contain the actual Chisel RTL generators themselves.
 Here is a brief description of what can be found in each package:
 
+* **amba**
+This RTL package uses diplomacy to generate bus implementations of AMBA protocols, including AXI4, AHB-lite, and APB.
+* **chip**
+This top-level utility package invokes Chisel to elaborate a particular configuration of a coreplex,
+along with the appropriate testing collateral.
 * **config**
 This utility package provides Scala interfaces for configuring a generator via a dynamically-scoped
 parameterization library.
 * **coreplex**
-This RTL package generates a complete coreplex by gluing together a variety of other components,
+This RTL package generates a complete coreplex by gluing together a variety of components from other packages,
-including tiled Rocket cores, an L1-to-L2 network, L2 coherence agents, and internal devices
+including: tiled Rocket cores, a system bus network, coherence agents, debug devices, interrupt handlers, externally-facing peripherals,
-such as the debug unit and interrupt handlers.
+clock-crossers and converters from TileLink to external bus protocols (e.g. AXI or AHB).
+* **devices**
+This RTL package contains implementations for peripheral devices, including the Debug module and various TL slaves.
 * **diplomacy**
 This utility package extends Chisel by allowing for two-phase hardware elaboration, in which certain parameters
 are dynamically negotiated between modules.
@@ -176,16 +183,13 @@ This RTL package generates the Rocket in-order pipelined core,
 as well as the L1 instruction and data caches.
 This library is intended to be used by a chip generator that instantiates the
 core within a memory system and connects it to the outside world.
-* **uncore**
+* **tile**
-This RTL package generates a variety of uncore logic and devices, such as
+This RTL package contains components that can be combined with cores to construct tiles, such as FPUs and accelerators.
-such as the L2 coherence hub and Debug modules, as well as defining their interfaces and protocols.
+* **tilelink**
-Contains implementations of both TileLink and AXI4.
+This RTL package uses diplomacy to generate bus implementations of the TileLink protocol. It also contains a variety
+of adapters and protocol converters.
 * **unittest**
 This utility package contains a framework for generateing synthesizeable hardware testers of individual modules.
-* **rocketchip**
-This top-level RTL package instantiates a coreplex and drops in any additional
-externally-facing peripheral devices. It also includes clock-crossers and converters
-from TileLink to external bus protocols (e.g. AXI or AHB).
 * **util**
 This utility package provides a variety of common Scala and Chisel constructs that are re-used across
 multiple other packages,

regression/Makefile

@@ -42,31 +42,23 @@ $(error Set SUITE to the regression suite you want to run)
 endif
 
 ifeq ($(SUITE),RocketSuiteA)
-PROJECT=rocketchip
+PROJECT=freechips.rocketchip.chip
 CONFIGS=DefaultConfig
 endif
 
 ifeq ($(SUITE),RocketSuiteB)
-PROJECT=rocketchip
+PROJECT=freechips.rocketchip.chip
 CONFIGS=DefaultBufferlessConfig
 endif
 
 ifeq ($(SUITE),RocketSuiteC)
-PROJECT=rocketchip
+PROJECT=freechips.rocketchip.chip
-CONFIGS=DefaultL2Config TinyConfig
+CONFIGS=TinyConfig
-endif
-
-ifeq ($(SUITE),GroundtestSuite)
-PROJECT=groundtest
-CONFIGS=MemtestConfig MemtestBufferlessConfig MemtestStatelessConfig \
-        BroadcastRegressionTestConfig BufferlessRegressionTestConfig CacheRegressionTestConfig \
-	ComparatorConfig ComparatorBufferlessConfig ComparatorStatelessConfig
-# FancyMemtestConfig takes too long to compile
 endif
 
 ifeq ($(SUITE),UnittestSuite)
-PROJECT=unittest
+PROJECT=freechips.rocketchip.unittest
-CONFIGS=UncoreUnitTestConfig TLSimpleUnitTestConfig TLWidthUnitTestConfig
+CONFIGS=AMBAUnitTestConfig TLSimpleUnitTestConfig TLWidthUnitTestConfig
 endif
 
 ifeq ($(SUITE), JtagDtmSuite)

src/main/scala/amba/ahb/Bundles.scala

@@ -1,9 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
-import util.GenericParameterizedBundle
+import freechips.rocketchip.util.GenericParameterizedBundle
 
 abstract class AHBBundleBase(params: AHBBundleParameters) extends GenericParameterizedBundle(params)
 

src/main/scala/amba/ahb/Nodes.scala

@@ -1,11 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.diplomacy._
-import diplomacy._
 
 object AHBImp extends NodeImp[AHBMasterPortParameters, AHBSlavePortParameters, AHBEdgeParameters, AHBEdgeParameters, AHBBundle]
 {

src/main/scala/amba/ahb/Parameters.scala

@@ -1,10 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
-import config._
+import freechips.rocketchip.diplomacy._
-import diplomacy._
 import scala.math.max
 
 case class AHBSlaveParameters(

src/main/scala/amba/ahb/Protocol.scala

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

src/main/scala/amba/ahb/RegisterRouter.scala

@@ -1,11 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
+import freechips.rocketchip.tilelink.{IntSourceNode, IntSourcePortSimple}
+import freechips.rocketchip.util.{HeterogeneousBag, MaskGen}
 import scala.math.{min,max}
 
 class AHBRegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int = 4, undefZero: Boolean = true, executable: Boolean = false)
@@ -57,7 +59,7 @@ class AHBRegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int
       d_taken := Bool(false)
       d_read  := !ahb.hwrite
       d_index := ahb.haddr >> log2Ceil(beatBytes)
-      d_mask  := uncore.tilelink2.maskGen(ahb.haddr, ahb.hsize, beatBytes)
+      d_mask  := MaskGen(ahb.haddr, ahb.hsize, beatBytes)
     }
 
     out.ready := Bool(true)
@@ -77,10 +79,10 @@ object AHBRegisterNode
 abstract class AHBRegisterRouterBase(address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean)(implicit p: Parameters) extends LazyModule
 {
   val node = AHBRegisterNode(address, concurrency, beatBytes, undefZero, executable)
-  val intnode = uncore.tilelink2.IntSourceNode(uncore.tilelink2.IntSourcePortSimple(num = interrupts))
+  val intnode = IntSourceNode(IntSourcePortSimple(num = interrupts))
 }
 
-case class AHBRegBundleArg(interrupts: util.HeterogeneousBag[Vec[Bool]], in: util.HeterogeneousBag[AHBBundle])(implicit val p: Parameters)
+case class AHBRegBundleArg(interrupts: HeterogeneousBag[Vec[Bool]], in: HeterogeneousBag[AHBBundle])(implicit val p: Parameters)
 
 class AHBRegBundleBase(arg: AHBRegBundleArg) extends Bundle
 {

src/main/scala/amba/ahb/SRAM.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.util._
 
 class AHBRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4, fuzzHreadyout: Boolean = false)(implicit p: Parameters) extends LazyModule
 {
@@ -35,7 +35,7 @@ class AHBRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4
     // The mask and address during the address phase
     val a_access    = in.htrans === AHBParameters.TRANS_NONSEQ || in.htrans === AHBParameters.TRANS_SEQ
     val a_request   = in.hready && in.hsel && a_access
-    val a_mask      = uncore.tilelink2.maskGen(in.haddr, in.hsize, beatBytes)
+    val a_mask      = MaskGen(in.haddr, in.hsize, beatBytes)
     val a_address   = Cat((mask zip (in.haddr >> log2Ceil(beatBytes)).toBools).filter(_._1).map(_._2).reverse)
     val a_write     = in.hwrite
 

src/main/scala/amba/ahb/Test.scala

@@ -1,12 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.devices.tilelink.TLTestRAM
-import uncore.tilelink2._
+import freechips.rocketchip.diplomacy._
-import unittest._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.unittest._
 
 class RRTest0(address: BigInt)(implicit p: Parameters) extends AHBRegisterRouter(address, 0, 32, 0, 4)(
   new AHBRegBundle((), _)    with RRTest0Bundle)(

src/main/scala/amba/ahb/ToTL.scala

@@ -1,12 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util.MaskGen
 
 case class AHBToTLNode() extends MixedAdapterNode(AHBImp, TLImp)(
   dFn = { case AHBMasterPortParameters(masters) =>
@@ -108,7 +109,7 @@ class AHBToTL()(implicit p: Parameters) extends LazyModule
       out.a.bits.source  := UInt(0)
       out.a.bits.address := d_addr
       out.a.bits.data    := in.hwdata
-      out.a.bits.mask    := maskGen(d_addr, d_size, beatBytes)
+      out.a.bits.mask    := MaskGen(d_addr, d_size, beatBytes)
 
       out.d.ready  := d_recv // backpressure AccessAckData arriving faster than AHB beats
       in.hrdata    := out.d.bits.data

src/main/scala/amba/ahb/Xbar.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.ahb
+package freechips.rocketchip.amba.ahb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
 import scala.math.{min,max}
 
 class AHBFanout()(implicit p: Parameters) extends LazyModule {

src/main/scala/amba/ahb/package.scala

@@ -1,9 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package uncore
+package freechips.rocketchip.amba
 
 import Chisel._
-import diplomacy._
+import freechips.rocketchip.diplomacy.OutwardNodeHandle
 
 package object ahb
 {

src/main/scala/amba/apb/Bundles.scala

@@ -1,9 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
-import util.GenericParameterizedBundle
+import freechips.rocketchip.util.GenericParameterizedBundle
 
 abstract class APBBundleBase(params: APBBundleParameters) extends GenericParameterizedBundle(params)
 

src/main/scala/amba/apb/Nodes.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
 
 object APBImp extends NodeImp[APBMasterPortParameters, APBSlavePortParameters, APBEdgeParameters, APBEdgeParameters, APBBundle]
 {

src/main/scala/amba/apb/Parameters.scala

@@ -1,10 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
 import scala.math.max
 
 case class APBSlaveParameters(

src/main/scala/amba/apb/Protocol.scala

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

src/main/scala/amba/apb/RegisterRouter.scala

@@ -1,11 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
+import freechips.rocketchip.tilelink.{IntSourceNode, IntSourcePortSimple}
+import freechips.rocketchip.util.HeterogeneousBag
 import scala.math.{min,max}
 
 class APBRegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int = 4, undefZero: Boolean = true, executable: Boolean = false)
@@ -61,10 +63,10 @@ object APBRegisterNode
 abstract class APBRegisterRouterBase(address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean)(implicit p: Parameters) extends LazyModule
 {
   val node = APBRegisterNode(address, concurrency, beatBytes, undefZero, executable)
-  val intnode = uncore.tilelink2.IntSourceNode(uncore.tilelink2.IntSourcePortSimple(num = interrupts))
+  val intnode = IntSourceNode(IntSourcePortSimple(num = interrupts))
 }
 
-case class APBRegBundleArg(interrupts: util.HeterogeneousBag[Vec[Bool]], in: util.HeterogeneousBag[APBBundle])(implicit val p: Parameters)
+case class APBRegBundleArg(interrupts: HeterogeneousBag[Vec[Bool]], in: HeterogeneousBag[APBBundle])(implicit val p: Parameters)
 
 class APBRegBundleBase(arg: APBRegBundleArg) extends Bundle
 {

src/main/scala/amba/apb/SRAM.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.util._
 
 class APBRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/amba/apb/Test.scala

@@ -1,12 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
-import unittest._
+import freechips.rocketchip.unittest._
 
 class RRTest0(address: BigInt)(implicit p: Parameters) extends APBRegisterRouter(address, 0, 32, 0, 4)(
   new APBRegBundle((), _)    with RRTest0Bundle)(

src/main/scala/amba/apb/Xbar.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.apb
+package freechips.rocketchip.amba.apb
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
 import scala.math.{min,max}
 
 class APBFanout()(implicit p: Parameters) extends LazyModule {

src/main/scala/amba/apb/package.scala

@@ -1,9 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package uncore
+package freechips.rocketchip.amba
 
 import Chisel._
-import diplomacy._
+import freechips.rocketchip.diplomacy.OutwardNodeHandle
 
 package object apb
 {

src/main/scala/amba/axi4/Buffer.scala

@@ -1,12 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
 import chisel3.util.IrrevocableIO
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
 import scala.math.{min,max}
 
 // pipe is only used if a queue has depth = 1

src/main/scala/amba/axi4/Bundles.scala

@@ -1,10 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.util.Irrevocable
-import util.GenericParameterizedBundle
+import freechips.rocketchip.util.GenericParameterizedBundle
 
 abstract class AXI4BundleBase(params: AXI4BundleParameters) extends GenericParameterizedBundle(params)
 

src/main/scala/amba/axi4/Deinterleaver.scala

@@ -1,14 +1,14 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
 import chisel3.util.IrrevocableIO
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
+import freechips.rocketchip.util.{leftOR, rightOR, UIntToOH1, OH1ToOH}
 import scala.math.{min,max}
-import uncore.tilelink2.{leftOR, rightOR, UIntToOH1, OH1ToOH}
 
 class AXI4Deinterleaver(maxReadBytes: Int)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/amba/axi4/Fragmenter.scala

@@ -1,14 +1,14 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
 import chisel3.util.IrrevocableIO
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
+import freechips.rocketchip.util.{leftOR, rightOR, UIntToOH1, OH1ToOH}
 import scala.math.{min,max}
-import uncore.tilelink2.{leftOR, rightOR, UIntToOH1, OH1ToOH}
 
 class AXI4Fragmenter()(implicit p: Parameters) extends LazyModule
 {

src/main/scala/amba/axi4/IdIndexer.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
 import scala.math.{min,max}
 
 class AXI4IdIndexer(idBits: Int)(implicit p: Parameters) extends LazyModule

src/main/scala/amba/axi4/Nodes.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
 
 object AXI4Imp extends NodeImp[AXI4MasterPortParameters, AXI4SlavePortParameters, AXI4EdgeParameters, AXI4EdgeParameters, AXI4Bundle]
 {

src/main/scala/amba/axi4/Parameters.scala

@@ -1,10 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
 import scala.math.max
 
 case class AXI4SlaveParameters(

src/main/scala/amba/axi4/Protocol.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.util.{Irrevocable, IrrevocableIO}

src/main/scala/amba/axi4/RegisterRouter.scala

@@ -1,11 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
+import freechips.rocketchip.tilelink.{IntSourceNode, IntSourcePortSimple}
+import freechips.rocketchip.util.{HeterogeneousBag, MaskGen}
 import scala.math.{min,max}
 
 class AXI4RegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int = 4, undefZero: Boolean = true, executable: Boolean = false)
@@ -43,7 +45,7 @@ class AXI4RegisterNode(address: AddressSet, concurrency: Int = 0, beatBytes: Int
     val aw_extra = Cat(Seq(aw.bits.id) ++ aw.bits.user.toList)
     val in_extra = Mux(ar.valid, ar_extra, aw_extra)
     val addr = Mux(ar.valid, ar.bits.addr, aw.bits.addr)
-    val mask = uncore.tilelink2.maskGen(ar.bits.addr, ar.bits.size, beatBytes)
+    val mask = MaskGen(ar.bits.addr, ar.bits.size, beatBytes)
 
     in.bits.read  := ar.valid
     in.bits.index := addr >> log2Ceil(beatBytes)
@@ -87,10 +89,10 @@ object AXI4RegisterNode
 abstract class AXI4RegisterRouterBase(address: AddressSet, interrupts: Int, concurrency: Int, beatBytes: Int, undefZero: Boolean, executable: Boolean)(implicit p: Parameters) extends LazyModule
 {
   val node = AXI4RegisterNode(address, concurrency, beatBytes, undefZero, executable)
-  val intnode = uncore.tilelink2.IntSourceNode(uncore.tilelink2.IntSourcePortSimple(num = interrupts))
+  val intnode = IntSourceNode(IntSourcePortSimple(num = interrupts))
 }
 
-case class AXI4RegBundleArg(interrupts: util.HeterogeneousBag[Vec[Bool]], in: util.HeterogeneousBag[AXI4Bundle])(implicit val p: Parameters)
+case class AXI4RegBundleArg(interrupts: HeterogeneousBag[Vec[Bool]], in: HeterogeneousBag[AXI4Bundle])(implicit val p: Parameters)
 
 class AXI4RegBundleBase(arg: AXI4RegBundleArg) extends Bundle
 {

src/main/scala/amba/axi4/SRAM.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.util._
 
 class AXI4RAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/amba/axi4/Test.scala

@@ -1,12 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.devices.tilelink.TLError
-import uncore.tilelink2._
+import freechips.rocketchip.diplomacy._
-import unittest._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.unittest._
 
 class RRTest0(address: BigInt)(implicit p: Parameters) extends AXI4RegisterRouter(address, 0, 32, 0, 4)(
   new AXI4RegBundle((), _)    with RRTest0Bundle)(

src/main/scala/amba/axi4/ToTL.scala

@@ -1,12 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
 
 case class AXI4ToTLNode() extends MixedAdapterNode(AXI4Imp, TLImp)(
   dFn = { case AXI4MasterPortParameters(masters, userBits) =>

src/main/scala/amba/axi4/UserYanker.scala

@@ -1,12 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.axi4
+package freechips.rocketchip.amba.axi4
 
 import Chisel._
 import chisel3.internal.sourceinfo.SourceInfo
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import uncore.tilelink2.UIntToOH1
+import freechips.rocketchip.util.UIntToOH1
 
 class AXI4UserYanker(capMaxFlight: Option[Int] = None)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/amba/axi4/package.scala

@@ -1,9 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package uncore
+package freechips.rocketchip.amba
 
 import Chisel._
-import diplomacy._
+import freechips.rocketchip.diplomacy.OutwardNodeHandle
 
 package object axi4
 {

src/main/scala/chip/Configs.scala

@@ -1,24 +1,24 @@
 // See LICENSE.SiFive for license details.
 // See LICENSE.Berkeley for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import junctions._
+
-import rocket._
+import freechips.rocketchip.config._
-import diplomacy._
+import freechips.rocketchip.coreplex._
-import uncore.agents._
+import freechips.rocketchip.devices._
-import uncore.tilelink2._
+import freechips.rocketchip.diplomacy._
-import uncore.devices._
+import freechips.rocketchip.rocket._
-import uncore.converters._
+import freechips.rocketchip.tile.XLen
-import util._
+import freechips.rocketchip.tilelink._
-import coreplex._
+import freechips.rocketchip.util._
+
 import scala.math.max
 import scala.collection.mutable.{LinkedHashSet, ListBuffer}
 import scala.collection.immutable.HashMap
+
 import DefaultTestSuites._
-import config._
-import tile.XLen
 
 class BasePlatformConfig extends Config((site, here, up) => {
   // DTS descriptive parameters
@@ -49,33 +49,23 @@ class BasePlatformConfig extends Config((site, here, up) => {
 class BaseConfig extends Config(new BaseCoreplexConfig ++ new BasePlatformConfig)
 class DefaultConfig extends Config(new WithNBigCores(1) ++ new BaseConfig)
 
-class DefaultL2Config extends Config(new WithL2Cache ++ new WithNBigCores(1) ++ new BaseConfig)
 class DefaultBufferlessConfig extends Config(
   new WithBufferlessBroadcastHub ++ new WithNBigCores(1) ++ new BaseConfig)
 
 class FPGAConfig extends Config(Parameters.empty)
 class DefaultFPGAConfig extends Config(new FPGAConfig ++ new BaseConfig)
-class DefaultL2FPGAConfig extends Config(
-  new WithL2Capacity(64) ++ new WithL2Cache ++ new DefaultFPGAConfig)
 
 class DefaultSmallConfig extends Config(new WithNSmallCores(1) ++ new BaseConfig)
 class DefaultRV32Config extends Config(new WithRV32 ++ new DefaultConfig)
 
 class DualBankConfig extends Config(
   new WithNBanksPerMemChannel(2) ++ new BaseConfig)
-class DualBankL2Config extends Config(
-  new WithNBanksPerMemChannel(2) ++ new WithL2Cache ++ new BaseConfig)
 
 class DualChannelConfig extends Config(new WithNMemoryChannels(2) ++ new BaseConfig)
-class DualChannelL2Config extends Config(
-  new WithNMemoryChannels(2) ++ new WithL2Cache ++ new BaseConfig)
 
 class DualChannelDualBankConfig extends Config(
   new WithNMemoryChannels(2) ++
   new WithNBanksPerMemChannel(2) ++ new BaseConfig)
-class DualChannelDualBankL2Config extends Config(
-  new WithNMemoryChannels(2) ++ new WithNBanksPerMemChannel(2) ++
-  new WithL2Cache ++ new BaseConfig)
 
 class RoccExampleConfig extends Config(new WithRoccExample ++ new DefaultConfig)
 
@@ -84,11 +74,7 @@ class Edge128BitConfig extends Config(
 class Edge32BitConfig extends Config(
   new WithEdgeDataBits(32) ++ new BaseConfig)
 
-class SmallL2Config extends Config(
+class SingleChannelBenchmarkConfig extends Config(new DefaultConfig)
-  new WithNMemoryChannels(2) ++ new WithNBanksPerMemChannel(4) ++
-  new WithL2Capacity(256) ++ new DefaultL2Config)
-
-class SingleChannelBenchmarkConfig extends Config(new WithL2Capacity(256) ++ new DefaultL2Config)
 class DualChannelBenchmarkConfig extends Config(new WithNMemoryChannels(2) ++ new SingleChannelBenchmarkConfig)
 class QuadChannelBenchmarkConfig extends Config(new WithNMemoryChannels(4) ++ new SingleChannelBenchmarkConfig)
 class OctoChannelBenchmarkConfig extends Config(new WithNMemoryChannels(8) ++ new SingleChannelBenchmarkConfig)
@@ -96,9 +82,9 @@ class OctoChannelBenchmarkConfig extends Config(new WithNMemoryChannels(8) ++ ne
 class EightChannelConfig extends Config(new WithNMemoryChannels(8) ++ new BaseConfig)
 
 class DualCoreConfig extends Config(
-  new WithNBigCores(2) ++ new WithL2Cache ++ new BaseConfig)
+  new WithNBigCores(2) ++ new BaseConfig)
 class HeterogeneousDualCoreConfig extends Config(
-  new WithNSmallCores(1) ++ new WithNBigCores(1) ++ new WithL2Cache ++ new BaseConfig)
+  new WithNSmallCores(1) ++ new WithNBigCores(1) ++ new BaseConfig)
 
 class TinyConfig extends Config(
   new WithNMemoryChannels(0) ++

src/main/scala/chip/DebugTransport.scala

@@ -1,12 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import util._
+
-import config._
+import freechips.rocketchip.config._
-import jtag._
+import freechips.rocketchip.devices.debug.{DMIConsts, DMIIO, DMIReq, DMIResp}
-import uncore.devices.{DMIConsts, DMIIO, DMIReq, DMIResp}
+import freechips.rocketchip.jtag._
+import freechips.rocketchip.util._
 
 case object IncludeJtagDTM extends Field[Boolean]
 

src/main/scala/chip/ExampleTop.scala

@@ -1,11 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import config._
+
-import junctions._
+import freechips.rocketchip.config.Parameters
-import rocketchip._
 
 /** Example system with periphery devices (w/o coreplex) */
 abstract class ExampleSystem(implicit p: Parameters) extends BaseSystem

src/main/scala/chip/Generator.scala

@@ -1,14 +1,15 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
-import tile.XLen
+import freechips.rocketchip.coreplex.RocketTilesKey
-import coreplex.RocketTilesKey
+import freechips.rocketchip.tile.XLen
+import freechips.rocketchip.util.GeneratorApp
 
 import scala.collection.mutable.LinkedHashSet
 
 /** A Generator for platforms containing Rocket Coreplexes */
-object Generator extends util.GeneratorApp {
+object Generator extends GeneratorApp {
 
   val rv64RegrTestNames = LinkedHashSet(
         "rv64ud-v-fcvt",

src/main/scala/chip/Periphery.scala

@@ -1,14 +1,17 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import config._
+
-import coreplex._
+import freechips.rocketchip.config._
-import diplomacy._
+import freechips.rocketchip.coreplex._
-import uncore.tilelink2._
+import freechips.rocketchip.devices.tilelink._
-import uncore.axi4._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.amba.axi4._
+import freechips.rocketchip.util._
+
 import scala.math.{min,max}
 
 /** Specifies the size of external memory */
@@ -42,7 +45,7 @@ trait HasPeripheryParameters {
   def socBusBytes = socBusConfig.beatBytes
   def cacheBlockBytes = p(CacheBlockBytes)
   def peripheryBusArithmetic = p(PeripheryBusArithmetic)
-  def nMemoryChannels = p(coreplex.BankedL2Config).nMemoryChannels
+  def nMemoryChannels = p(BankedL2Config).nMemoryChannels
   def nExtInterrupts = p(NExtTopInterrupts)
 }
 

src/main/scala/chip/RISCVPlatform.scala

@@ -1,15 +1,17 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import config._
+
-import coreplex._
+import freechips.rocketchip.config._
-import diplomacy._
+import freechips.rocketchip.devices.debug._
-import jtag.JTAGIO
+import freechips.rocketchip.devices.tilelink._
-import uncore.tilelink2._
+import freechips.rocketchip.coreplex._
-import uncore.devices._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.jtag.JTAGIO
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
 
 /** All the traits defined in this file assume that they are being mixed in
   * to a system that has a standard RISCV-based coreplex platform.
@@ -89,7 +91,7 @@ trait HasPeripheryRTCCounter extends HasSystemNetworks with HasCoreplexRISCVPlat
 
 trait HasPeripheryRTCCounterModuleImp extends LazyMultiIOModuleImp {
   val outer: HasPeripheryRTCCounter
-  val period = p(rocketchip.RTCPeriod)
+  val period = p(RTCPeriod)
   val rtcCounter = RegInit(UInt(0, width = log2Up(period)))
   val rtcWrap = rtcCounter === UInt(period-1)
 

src/main/scala/chip/RocketPlexMaster.scala

@@ -1,10 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import coreplex.RocketPlex
+
-import diplomacy.{LazyModule, LazyMultiIOModuleImp}
+import freechips.rocketchip.coreplex.RocketPlex
+import freechips.rocketchip.diplomacy.{LazyModule, LazyMultiIOModuleImp}
 
 /** Add a RocketPlex to the system */
 trait HasRocketPlexMaster extends HasSystemNetworks with HasCoreplexRISCVPlatform {

src/main/scala/chip/RocketTestSuite.scala

@@ -1,9 +1,8 @@
 // See LICENSE.Berkeley for license details.
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
-import Chisel._
 import scala.collection.mutable.LinkedHashSet
 
 abstract class RocketTestSuite {

src/main/scala/chip/System.scala

@@ -1,11 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import config.Parameters
+
-import diplomacy._
+import freechips.rocketchip.config.Parameters
-import util._
+import freechips.rocketchip.diplomacy.{LazyModule, LazyMultiIOModuleImp}
+import freechips.rocketchip.util.ElaborationArtefacts
 
 /** BareSystem is the root class for creating a top-level RTL module */
 abstract class BareSystem(implicit p: Parameters) extends LazyModule {

src/main/scala/chip/TestHarness.scala

@@ -1,14 +1,15 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
 
 import Chisel._
-import config._
+
-import junctions._
+import freechips.rocketchip.amba.axi4._
-import diplomacy._
+import freechips.rocketchip.config.Parameters
-import coreplex._
+import freechips.rocketchip.coreplex._
-import uncore.axi4._
+import freechips.rocketchip.devices.debug._
-import jtag.JTAGIO
+import freechips.rocketchip.diplomacy._
+import freechips.rocketchip.jtag.JTAGIO
 
 class TestHarness()(implicit p: Parameters) extends Module {
   val io = new Bundle {
@@ -52,11 +53,11 @@ class SimDTM(implicit p: Parameters) extends BlackBox {
   val io = new Bundle {
     val clk = Clock(INPUT)
     val reset = Bool(INPUT)
-    val debug = new uncore.devices.DMIIO
+    val debug = new DMIIO
     val exit = UInt(OUTPUT, 32)
   }
 
-  def connect(tbclk: Clock, tbreset: Bool, dutio: uncore.devices.ClockedDMIIO, tbsuccess: Bool) = {
+  def connect(tbclk: Clock, tbreset: Bool, dutio: ClockedDMIIO, tbsuccess: Bool) = {
     io.clk := tbclk
     io.reset := tbreset
     dutio.dmi <> io.debug

src/main/scala/chip/Utils.scala

@@ -1,18 +1,13 @@
 // See LICENSE.SiFive for license details.
 
-package rocketchip
+package freechips.rocketchip.chip
-
-import config._
-import junctions._
-import diplomacy._
-import uncore.devices._
-import tile.XLen
-import coreplex._
-import uncore.tilelink2._
-import util._
 
+import freechips.rocketchip.config.Parameters
+import freechips.rocketchip.diplomacy.DTB
+import freechips.rocketchip.coreplex.BootROMFile
 import java.nio.file.{Files, Paths}
 import java.nio.{ByteBuffer, ByteOrder}
+import scala.collection.mutable.ArrayBuffer
 
 class RangeManager {
   private var finalized = false
@@ -39,7 +34,7 @@ class RangeManager {
 
 class ResourceManager[T] {
   private var finalized = false
-  private val l = collection.mutable.ArrayBuffer[T]()
+  private val l = ArrayBuffer[T]()
   def add(element: T) = { require(!finalized); l += element }
   def add(list: Seq[T]) = { require(!finalized); l ++= list }
   def get: Seq[T] = { finalized = true; l }

src/main/scala/config/Config.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package config
+package freechips.rocketchip.config
 
 class Field[T]
 

src/main/scala/coreplex/BaseCoreplex.scala

@@ -1,14 +1,14 @@
 // See LICENSE.SiFive for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config._
+
-import diplomacy._
+import freechips.rocketchip.config._
-import tile.XLen
+import freechips.rocketchip.diplomacy._
-import tile.TileInterrupts
+import freechips.rocketchip.tile.{ XLen, TileInterrupts}
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
-import util._
+import freechips.rocketchip.util._
 
 /** Widths of various points in the SoC */
 case class TLBusConfig(beatBytes: Int)

src/main/scala/coreplex/Configs.scala

@@ -1,18 +1,18 @@
 // See LICENSE.SiFive for license details.
 // See LICENSE.Berkeley for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config._
+
-import diplomacy._
+import freechips.rocketchip.config._
-import rocket._
+import freechips.rocketchip.devices.debug._
-import tile._
+import freechips.rocketchip.devices.tilelink._
-import uncore.converters._
+import freechips.rocketchip.diplomacy._
-import uncore.devices._
+import freechips.rocketchip.rocket._
-import uncore.tilelink2._
+import freechips.rocketchip.tile._
-import uncore.util._
+import freechips.rocketchip.tilelink._
-import util._
+import freechips.rocketchip.util._
 
 class BaseCoreplexConfig extends Config ((site, here, up) => {
   case PAddrBits => 32
@@ -20,14 +20,13 @@ class BaseCoreplexConfig extends Config ((site, here, up) => {
   case ASIdBits => 0
   case XLen => 64 // Applies to all cores
   case ResetVectorBits => site(PAddrBits)
-  case MaxHartIdBits => log2Up(site(NTiles))
+  case MaxHartIdBits => log2Up(site(RocketTilesKey).size)
   case BuildCore => (p: Parameters) => new Rocket()(p)
   case RocketCrossing => SynchronousCrossing()
   case RocketTilesKey =>  Nil
   case DMKey => DefaultDebugModuleConfig(site(XLen))
   case PLICKey => PLICParams()
   case ClintKey => ClintParams()
-  case NTiles => site(RocketTilesKey).size
   case CBusConfig => TLBusConfig(beatBytes = site(XLen)/8)
   case L1toL2Config => TLBusConfig(beatBytes = site(XLen)/8) // increase for more PCIe bandwidth
   case BootROMFile => "./bootrom/bootrom.img"
@@ -112,10 +111,6 @@ class WithCacheBlockBytes(linesize: Int) extends Config((site, here, up) => {
   case CacheBlockBytes => linesize
 })
 
-class WithL2Cache extends Config(Parameters.empty) // TODO: re-add L2
-class WithL2Capacity(size_kb: Int) extends Config(Parameters.empty) // TODO: re-add L2
-class WithNL2Ways(n: Int) extends Config(Parameters.empty) // TODO: re-add L2
-
 class WithBufferlessBroadcastHub extends Config((site, here, up) => {
   case BroadcastConfig => up(BroadcastConfig, site).copy(bufferless = true)
 })

src/main/scala/coreplex/CoreplexNetwork.scala

@@ -1,13 +1,14 @@
 // See LICENSE.SiFive for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config._
+
-import diplomacy._
+import freechips.rocketchip.config._
-import uncore.tilelink2._
+import freechips.rocketchip.diplomacy._
-import uncore.util._
+import freechips.rocketchip.rocket.PAddrBits
-import util._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
 
 trait CoreplexNetwork extends HasCoreplexParameters {
   val module: CoreplexNetworkModule
@@ -112,7 +113,7 @@ trait CoreplexNetworkModule extends HasCoreplexParameters {
   val io: CoreplexNetworkBundle
 
   println("Generated Address Map")
-  private val aw = (outer.p(rocket.PAddrBits)-1)/4 + 1
+  private val aw = (outer.p(PAddrBits)-1)/4 + 1
   private val fmt = s"\t%${aw}x - %${aw}x %c%c%c%c %s"
 
   private def collect(path: List[String], value: ResourceValue): List[(String, ResourceAddress)] = {

src/main/scala/coreplex/ISPPort.scala

@@ -1,14 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config._
+import freechips.rocketchip.diplomacy.LazyModule
-import diplomacy._
+import freechips.rocketchip.tilelink._
-import rocket._
-import tile._
-import uncore.tilelink2._
-import util._
 
 trait HasISPPort extends CoreplexNetwork {
   val module: HasISPPortModule

src/main/scala/coreplex/RISCVPlatform.scala

@@ -1,17 +1,17 @@
 // See LICENSE.SiFive for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config.Field
-import diplomacy._
-import tile._
-import uncore.tilelink2._
-import uncore.devices._
-import util._
 
-/** Number of tiles */
+import freechips.rocketchip.config.Field
-case object NTiles extends Field[Int]
+import freechips.rocketchip.devices.debug._
+import freechips.rocketchip.devices.tilelink._
+import freechips.rocketchip.diplomacy._
+import freechips.rocketchip.tile._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
+
 case object PLICKey extends Field[PLICParams]
 case object ClintKey extends Field[ClintParams]
 

src/main/scala/coreplex/RocketPlex.scala

@@ -1,9 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config.Parameters
+
+import freechips.rocketchip.config.Parameters
 
 class RocketPlex(implicit p: Parameters) extends BaseCoreplex
     with CoreplexRISCVPlatform

src/main/scala/coreplex/RocketTiles.scala

@@ -1,22 +1,22 @@
 // See LICENSE.SiFive for license details.
 
-package coreplex
+package freechips.rocketchip.coreplex
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Field
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import rocket._
+import freechips.rocketchip.rocket._
-import tile._
+import freechips.rocketchip.tile._
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
-import util._
+import freechips.rocketchip.util._
 
-sealed trait ClockCrossing
+sealed trait CoreplexClockCrossing
-case class SynchronousCrossing(params: BufferParams = BufferParams.default) extends ClockCrossing
+case class SynchronousCrossing(params: BufferParams = BufferParams.default) extends CoreplexClockCrossing
-case class RationalCrossing(direction: RationalDirection = FastToSlow) extends ClockCrossing
+case class RationalCrossing(direction: RationalDirection = FastToSlow) extends CoreplexClockCrossing
-case class AsynchronousCrossing(depth: Int, sync: Int = 2) extends ClockCrossing
+case class AsynchronousCrossing(depth: Int, sync: Int = 2) extends CoreplexClockCrossing
 
 case object RocketTilesKey extends Field[Seq[RocketTileParams]]
-case object RocketCrossing extends Field[ClockCrossing]
+case object RocketCrossing extends Field[CoreplexClockCrossing]
 
 trait HasRocketTiles extends CoreplexRISCVPlatform {
   val module: HasRocketTilesModule

src/main/scala/devices/debug/Debug.scala

@@ -1,16 +1,15 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.devices
+package freechips.rocketchip.devices.debug
 
 import Chisel._
-import junctions._
+import freechips.rocketchip.config._
-import util._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
-import tile.XLen
+import freechips.rocketchip.rocket.Instructions
-import uncore.tilelink2._
+import freechips.rocketchip.tile.XLen
-import config._
+import freechips.rocketchip.tilelink._
-import diplomacy._
+import freechips.rocketchip.util._
-
 
 /** Constant values used by both Debug Bus Response & Request
   */
@@ -756,7 +755,7 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
 
     val goReg        = Reg(Bool())
     val goAbstract   = Wire(init = false.B)
-    val jalAbstract  = Wire(init = (new GeneratedUJ()).fromBits(rocket.Instructions.JAL.value.U))
+    val jalAbstract  = Wire(init = (new GeneratedUJ()).fromBits(Instructions.JAL.value.U))
     jalAbstract.setImm(ABSTRACT(cfg) - WHERETO)
 
     when (~io.dmactive){
@@ -838,20 +837,20 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
     val abstractGeneratedS = Wire(new GeneratedS())
     val nop = Wire(new GeneratedI())
 
-    abstractGeneratedI.opcode := ((new GeneratedI()).fromBits(rocket.Instructions.LW.value.U)).opcode
+    abstractGeneratedI.opcode := ((new GeneratedI()).fromBits(Instructions.LW.value.U)).opcode
     abstractGeneratedI.rd     := (accessRegisterCommandReg.regno & 0x1F.U)
     abstractGeneratedI.funct3 := accessRegisterCommandReg.size
     abstractGeneratedI.rs1    := 0.U
     abstractGeneratedI.imm    := DATA.U
 
-    abstractGeneratedS.opcode := ((new GeneratedS()).fromBits(rocket.Instructions.SW.value.U)).opcode
+    abstractGeneratedS.opcode := ((new GeneratedS()).fromBits(Instructions.SW.value.U)).opcode
     abstractGeneratedS.immlo  := (DATA & 0x1F).U
     abstractGeneratedS.funct3 := accessRegisterCommandReg.size
     abstractGeneratedS.rs1    := 0.U
     abstractGeneratedS.rs2    := (accessRegisterCommandReg.regno & 0x1F.U)
     abstractGeneratedS.immhi  := (DATA >> 5).U
 
-    nop := ((new GeneratedI()).fromBits(rocket.Instructions.ADDI.value.U))
+    nop := ((new GeneratedI()).fromBits(Instructions.ADDI.value.U))
     nop.rd   := 0.U
     nop.rs1  := 0.U
     nop.imm  := 0.U
@@ -867,7 +866,7 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
       )
       abstractGeneratedMem(1) := Mux(accessRegisterCommandReg.postexec,
         nop.asUInt(),
-        rocket.Instructions.EBREAK.value.U)
+        Instructions.EBREAK.value.U)
     }
 
     //--------------------------------------------------------------

src/main/scala/devices/debug/DebugRomContents.scala

@@ -1,6 +1,6 @@
 // This file was auto-generated by 'make publish' in debug/ directory.
 
-package uncore.devices
+package freechips.rocketchip.devices.debug
 
 object DebugRomContents {
 

src/main/scala/devices/debug/abstract_commands.scala

@@ -1,4 +1,4 @@
-package uncore.devices
+package freechips.rocketchip.devices.debug
 
 import Chisel._
 

src/main/scala/devices/debug/dm_registers.scala

@@ -1,4 +1,4 @@
-package uncore.devices
+package freechips.rocketchip.devices.debug
 
 import Chisel._
 

src/main/scala/devices/tilelink/Clint.scala

@@ -1,18 +1,15 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.devices
+package freechips.rocketchip.devices.tilelink
 
 import Chisel._
-import junctions._
+import freechips.rocketchip.config.Parameters
-import junctions.NastiConstants._
+import freechips.rocketchip.diplomacy._
-import regmapper._
+import freechips.rocketchip.regmapper._
-import diplomacy._
+import freechips.rocketchip.tile.XLen
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
-import uncore.util._
+import freechips.rocketchip.util._
-import util._
 import scala.math.{min,max}
-import config._
-import tile.XLen
 
 object ClintConsts
 {

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

@@ -1,11 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.tilelink2
+package freechips.rocketchip.devices.tilelink
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
 
 class TLError(address: Seq[AddressSet], beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {

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

@@ -1,18 +1,16 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.devices
+package freechips.rocketchip.devices.tilelink
 
 import Chisel._
 import Chisel.ImplicitConversions._
-
+import freechips.rocketchip.config.Parameters
-import junctions._
+import freechips.rocketchip.diplomacy._
-import diplomacy._
+import freechips.rocketchip.regmapper._
-import regmapper._
+import freechips.rocketchip.tile.XLen
-import uncore.tilelink2._
+import freechips.rocketchip.tilelink._
-import config._
+import freechips.rocketchip.util._
 import scala.math.min
-import tile.XLen
-import util._
 
 class GatewayPLICIO extends Bundle {
   val valid = Bool(OUTPUT)

src/main/scala/devices/tilelink/Rom.scala

@@ -0,0 +1,52 @@
+// See LICENSE.SiFive for license details.
+// See LICENSE.Berkeley for license details.
+
+package freechips.rocketchip.devices.tilelink
+
+import Chisel._
+import freechips.rocketchip.config.Parameters
+import freechips.rocketchip.diplomacy._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
+
+class TLROM(val base: BigInt, val size: Int, contentsDelayed: => Seq[Byte], executable: Boolean = true, beatBytes: Int = 4,
+  resources: Seq[Resource] = new SimpleDevice("rom", Seq("sifive,rom0")).reg("mem"))(implicit p: Parameters) extends LazyModule
+{
+
+  val node = TLManagerNode(beatBytes, TLManagerParameters (
+    address     = List(AddressSet(base, size-1)),
+    resources   = resources,
+    regionType  = RegionType.UNCACHED,
+    executable  = executable,
+    supportsGet = TransferSizes(1, beatBytes),
+    fifoId      = Some(0)))
+
+  lazy val module = new LazyModuleImp(this) {
+    val io = new Bundle {
+      val in = node.bundleIn
+    }
+
+    val contents = contentsDelayed
+    val wrapSize = 1 << log2Ceil(contents.size)
+    require (wrapSize <= size)
+
+    val in = io.in(0)
+    val edge = node.edgesIn(0)
+
+    val words = (contents ++ Seq.fill(wrapSize-contents.size)(0.toByte)).grouped(beatBytes).toSeq
+    val bigs = words.map(_.foldRight(BigInt(0)){ case (x,y) => (x.toInt & 0xff) | y << 8})
+    val rom = Vec(bigs.map(x => UInt(x, width = 8*beatBytes)))
+
+    in.d.valid := in.a.valid
+    in.a.ready := in.d.ready
+
+    val index = in.a.bits.address(log2Ceil(wrapSize)-1,log2Ceil(beatBytes))
+    val high = if (wrapSize == size) UInt(0) else in.a.bits.address(log2Ceil(size)-1, log2Ceil(wrapSize))
+    in.d.bits := edge.AccessAck(in.a.bits, UInt(0), Mux(high.orR, UInt(0), rom(index)))
+
+    // Tie off unused channels
+    in.b.valid := Bool(false)
+    in.c.ready := Bool(true)
+    in.e.ready := Bool(true)
+  }
+}

src/main/scala/devices/tilelink/TestRAM.scala

@@ -1,11 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.tilelink2
+package freechips.rocketchip.devices.tilelink
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
-import util._
+import freechips.rocketchip.tilelink._
+import freechips.rocketchip.util._
 
 // Do not use this for synthesis! Only for simulation.
 class TLTestRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
@@ -63,7 +64,7 @@ class TLTestRAM(address: AddressSet, executable: Boolean = true, beatBytes: Int
 }
 
 /** Synthesizeable unit testing */
-import unittest._
+import freechips.rocketchip.unittest._
 
 class TLRAMZeroDelay(ramBeatBytes: Int, txns: Int)(implicit p: Parameters) extends LazyModule {
   val fuzz = LazyModule(new TLFuzzer(txns))

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

@@ -1,10 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package uncore.tilelink2
+package freechips.rocketchip.devices.tilelink
 
 import Chisel._
-import config._
+import freechips.rocketchip.config.Parameters
-import diplomacy._
+import freechips.rocketchip.diplomacy._
+import freechips.rocketchip.tilelink._
 
 class TLZero(address: AddressSet, executable: Boolean = true, beatBytes: Int = 4)(implicit p: Parameters) extends LazyModule
 {

src/main/scala/diplomacy/AddressDecoder.scala

@@ -1,8 +1,8 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
-import Chisel._
+import Chisel.log2Ceil
 import scala.math.{max,min}
 
 object AddressDecoder

src/main/scala/diplomacy/DeviceTree.scala

@@ -1,9 +1,8 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
-import Chisel._
+import freechips.rocketchip.config.Field
-import config._
 import sys.process._
 import java.io.{ByteArrayInputStream, ByteArrayOutputStream}
 

src/main/scala/diplomacy/JSON.scala

@@ -1,6 +1,6 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
 import scala.collection.immutable.SortedMap
 

src/main/scala/diplomacy/LazyModule.scala

@@ -1,11 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
 import Chisel._
-import config._
 import chisel3.experimental.{BaseModule, RawModule, MultiIOModule}
 import chisel3.internal.sourceinfo.{SourceInfo, SourceLine, UnlocatableSourceInfo}
+import freechips.rocketchip.config.Parameters
 
 abstract class LazyModule()(implicit val p: Parameters)
 {

src/main/scala/diplomacy/Monitor.scala

@@ -1,10 +1,9 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
-import Chisel._
 import chisel3.internal.sourceinfo.{SourceInfo, SourceLine}
-import config._
+import freechips.rocketchip.config.Parameters
 
 abstract class MonitorBase(implicit sourceInfo: SourceInfo, p: Parameters) extends LazyModule()(p) {
   override val module: LazyModuleImp

src/main/scala/diplomacy/Nodes.scala

@@ -1,12 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
 import Chisel._
-import config._
-import util.HeterogeneousBag
-import scala.collection.mutable.ListBuffer
 import chisel3.internal.sourceinfo.SourceInfo
+import freechips.rocketchip.config.Parameters
+import freechips.rocketchip.util.HeterogeneousBag
+import scala.collection.mutable.ListBuffer
 
 // DI = Downwards flowing Parameters received on the inner side of the node
 // UI = Upwards   flowing Parameters generated by the inner side of the node

src/main/scala/diplomacy/Parameters.scala

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

src/main/scala/diplomacy/Resources.scala

@@ -1,9 +1,8 @@
 // See LICENSE.SiFive for license details.
 
-package diplomacy
+package freechips.rocketchip.diplomacy
 
-import Chisel._
+import Chisel.log2Ceil
-import config._
 import scala.collection.immutable.{ListMap,SortedMap}
 
 sealed trait ResourceValue

src/main/scala/diplomacy/package.scala

@@ -1,6 +1,7 @@
 // See LICENSE.SiFive for license details.
 
-import Chisel._
+package freechips.rocketchip
+
 import chisel3.internal.sourceinfo.{SourceInfo, SourceLine, UnlocatableSourceInfo}
 
 package object diplomacy

src/main/scala/groundtest/BusMasterTest.scala

@@ -1,116 +0,0 @@
-// See LICENSE.SiFive for license details.
-
-package groundtest
-
-import Chisel._
-import uncore.tilelink._
-import uncore.agents._
-import uncore.coherence.{InnerTLId, OuterTLId}
-import util._
-import rocketchip._
-import config._
-
-/**
- * An example bus mastering devices that writes some preset data to memory.
- * When it receives an MMIO put request, it starts writing out the data.
- * When it receives an MMIO get request, it responds with the progress of
- * the write. A grant data of 1 means it is still writing, grant data 0 
- * means it has finished.
- */
-class ExampleBusMaster(implicit val p: Parameters) extends Module
-    with HasTileLinkParameters {
-  val mmioParams = p.alterPartial({ case TLId => p(InnerTLId) })
-  val memParams = p.alterPartial({ case TLId => p(OuterTLId) })
-  val memStart = p(ExtMem).base
-  val memStartBlock = memStart >> p(CacheBlockOffsetBits)
-
-  val io = new Bundle {
-    val mmio = new ClientUncachedTileLinkIO()(mmioParams).flip
-    val mem = new ClientUncachedTileLinkIO()(memParams)
-  }
-
-  val s_idle :: s_put :: s_resp :: Nil = Enum(Bits(), 3)
-  val state = Reg(init = s_idle)
-  val send_resp = Reg(init = Bool(false))
-  val r_acq = Reg(new AcquireMetadata)
-
-  io.mmio.acquire.ready := !send_resp
-  io.mmio.grant.valid := send_resp
-  io.mmio.grant.bits := Grant(
-    is_builtin_type = Bool(true),
-    g_type = r_acq.getBuiltInGrantType(),
-    client_xact_id = r_acq.client_xact_id,
-    manager_xact_id = UInt(0),
-    addr_beat = r_acq.addr_beat,
-    data = Mux(state === s_idle, UInt(0), UInt(1)))
-
-  when (io.mmio.acquire.fire()) {
-    send_resp := Bool(true)
-    r_acq := io.mmio.acquire.bits
-    when (state === s_idle && io.mmio.acquire.bits.hasData()) { state := s_put }
-  }
-  when (io.mmio.grant.fire()) { send_resp := Bool(false) }
-
-  val (put_beat, put_done) = Counter(io.mem.acquire.fire(), tlDataBeats)
-  when (put_done) { state := s_resp }
-  when (io.mem.grant.fire()) { state := s_idle }
-
-  io.mem.acquire.valid := state === s_put
-  io.mem.acquire.bits := PutBlock(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock),
-    addr_beat = put_beat,
-    data = put_beat)
-  io.mem.grant.ready := state === s_resp
-}
-
-class BusMasterTest(implicit p: Parameters) extends GroundTest()(p)
-    with HasTileLinkParameters {
-  val (s_idle :: s_req_start :: s_resp_start :: s_req_poll :: s_resp_poll ::
-       s_req_check :: s_resp_check :: s_done :: Nil) = Enum(Bits(), 8)
-  val state = Reg(init = s_idle)
-
-  val busMasterBlock = p(ExtBus).base >> p(CacheBlockOffsetBits)
-  val start_acq = Put(
-    client_xact_id = UInt(0),
-    addr_block = UInt(busMasterBlock),
-    addr_beat = UInt(0),
-    data = UInt(1))
-  val poll_acq = Get(
-    client_xact_id = UInt(0),
-    addr_block = UInt(busMasterBlock),
-    addr_beat = UInt(0))
-  val check_acq = GetBlock(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock))
-
-  val acq = io.mem.head.acquire
-  val gnt = io.mem.head.grant
-
-  acq.valid := state.isOneOf(s_req_start, s_req_poll, s_req_check)
-  acq.bits := MuxLookup(state, check_acq, Seq(
-    s_req_start -> start_acq,
-    s_req_poll -> poll_acq))
-  gnt.ready := state.isOneOf(s_resp_start, s_resp_poll, s_resp_check)
-
-  val (get_beat, get_done) = Counter(
-    state === s_resp_check && gnt.valid, tlDataBeats)
-
-  when (state === s_idle) { state := s_req_start }
-  when (state === s_req_start && acq.ready) { state := s_resp_start }
-  when (state === s_resp_start && gnt.valid) { state := s_req_poll }
-  when (state === s_req_poll && acq.ready) { state := s_resp_poll }
-  when (state === s_resp_poll && gnt.valid) {
-    when (gnt.bits.data === UInt(0)) {
-      state := s_req_check
-    } .otherwise { state := s_req_poll }
-  }
-  when (state === s_req_check && acq.ready) { state := s_resp_check }
-  when (get_done) { state := s_done }
-
-  io.status.finished := state === s_done
-
-  assert(state =/= s_resp_check || !gnt.valid ||
-         gnt.bits.data === get_beat,
-         "BusMasterTest: data does not match")
-}

src/main/scala/groundtest/CacheFillTest.scala

@@ -1,56 +0,0 @@
-// See LICENSE.SiFive for license details.
-// See LICENSE.Berkeley for license details.
-
-package groundtest
-
-import Chisel._
-import coreplex.CacheBlockBytes
-import uncore.tilelink._
-import uncore.constants._
-import uncore.util._
-import util._
-import config._
-
-class CacheFillTest(implicit p: Parameters) extends GroundTest()(p)
-    with HasTileLinkParameters {
-  //val l2Config = p(CacheName("L2"))
-  //val capacityKb = l2Config.nSets * l2Config.nWays * l2Config.rowBits / (1024*8)
-  val capacityKb = 1024 // TODO
-  val nblocks = capacityKb * 1024 / p(CacheBlockBytes)
-  val s_start :: s_prefetch :: s_retrieve :: s_finished :: Nil = Enum(Bits(), 4)
-  val state = Reg(init = s_start)
-
-  val active = state.isOneOf(s_prefetch, s_retrieve)
-
-  val xact_pending = Reg(init = UInt(0, tlMaxClientXacts))
-  val xact_id = PriorityEncoder(~xact_pending)
-
-  val (req_block, round_done) = Counter(io.mem.head.acquire.fire(), nblocks)
-
-  io.mem.head.acquire.valid := active && !xact_pending.andR
-  io.mem.head.acquire.bits := Mux(state === s_prefetch,
-    GetPrefetch(xact_id, UInt(memStartBlock) + req_block),
-    GetBlock(xact_id, UInt(memStartBlock) + req_block))
-  io.mem.head.grant.ready := xact_pending.orR
-
-  def add_pending(acq: DecoupledIO[Acquire]): UInt =
-    Mux(acq.fire(), UIntToOH(acq.bits.client_xact_id), UInt(0))
-
-  def remove_pending(gnt: DecoupledIO[Grant]): UInt = {
-    val last_grant = !gnt.bits.hasMultibeatData() ||
-                      gnt.bits.addr_beat === UInt(tlDataBeats - 1)
-    ~Mux(gnt.fire() && last_grant, UIntToOH(gnt.bits.client_xact_id), UInt(0))
-  }
-
-  xact_pending := (xact_pending |
-    add_pending(io.mem.head.acquire)) &
-    remove_pending(io.mem.head.grant)
-
-  when (state === s_start) { state := s_prefetch }
-  when (state === s_prefetch && round_done) { state := s_retrieve }
-  when (state === s_retrieve && round_done) { state := s_finished }
-
-  io.status.finished := (state === s_finished)
-  io.status.timeout.valid := Bool(false)
-  io.status.error.valid := Bool(false)
-}

src/main/scala/groundtest/Comparator.scala

@@ -1,394 +0,0 @@
-// See LICENSE.SiFive for license details.
-
-package groundtest
-
-import Chisel._
-import uncore.tilelink._
-import uncore.constants._
-import junctions._
-import rocket._
-import util.Timer
-import scala.util.Random
-import config._
-import util._
-
-case class ComparatorParameters(
-  targets:    Seq[Long], 
-  width:      Int,
-  operations: Int,
-  atomics:    Boolean,
-  prefetches: Boolean)
-case object ComparatorKey extends Field[ComparatorParameters]
-
-trait HasComparatorParameters {
-  implicit val p: Parameters
-  val comparatorParams = p(ComparatorKey)
-  val targets     = comparatorParams.targets
-  val nTargets    = targets.size
-  val targetWidth = comparatorParams.width
-  val nOperations = comparatorParams.operations
-  val atomics     = comparatorParams.atomics
-  val prefetches  = comparatorParams.prefetches
-}
-
-object LFSR64
-{
-  private var counter = 0
-  private def next: Int = {
-    counter += 1
-    counter
-  }
-  
-  def apply(increment: Bool = Bool(true), seed: Int = next): UInt =
-  {
-    val wide = 64
-    val lfsr = RegInit(UInt((seed * 0xDEADBEEFCAFEBAB1L) >>> 1, width = wide))
-    val xor = lfsr(0) ^ lfsr(1) ^ lfsr(3) ^ lfsr(4)
-    when (increment) { lfsr := Cat(xor, lfsr(wide-1,1)) }
-    lfsr
-  }
-}
-
-object NoiseMaker
-{
-  def apply(wide: Int, increment: Bool = Bool(true)): UInt = {
-    val lfsrs = Seq.fill((wide+63)/64) { LFSR64(increment) }
-    Cat(lfsrs)(wide-1,0)
-  }
-}
-
-object MaskMaker
-{
-  def apply(wide: Int, bits: UInt): UInt = 
-    Vec.tabulate(wide) {UInt(_) < bits} .asUInt
-}
-
-class ComparatorSource(implicit val p: Parameters) extends Module
-    with HasComparatorParameters
-    with HasTileLinkParameters
-{
-  val io = new Bundle {
-    val out = Decoupled(new Acquire)
-    val finished = Bool(OUTPUT)
-  }
-  
-  // Output exactly nOperations of Acquires
-  val finished = RegInit(Bool(false))
-  val valid    = RegInit(Bool(false))
-  
-  valid := Bool(true)
-  
-  io.finished  := finished
-  io.out.valid := !finished && valid
-  
-  // Generate random operand sizes
-  val inc = io.out.fire()
-  val raw_operand_size = NoiseMaker(2, inc) | UInt(0, M_SZ)
-  val max_operand_size = UInt(log2Up(tlDataBytes))
-  val get_operand_size = Mux(raw_operand_size > max_operand_size, max_operand_size, raw_operand_size)
-  val atomic_operand_size = UInt(2) + NoiseMaker(1, inc) // word or dword
-  
-  // Generate random, but valid addr_bytes
-  val raw_addr_byte = NoiseMaker(tlByteAddrBits, inc)
-  val get_addr_byte    = raw_addr_byte & ~MaskMaker(tlByteAddrBits, get_operand_size)
-  val atomic_addr_byte = raw_addr_byte & ~MaskMaker(tlByteAddrBits, atomic_operand_size)
-  
-  // Only allow some of the possible choices (M_XA_MAXU untested)
-  val atomic_opcode = MuxLookup(NoiseMaker(3, inc), M_XA_SWAP, Array(
-    UInt("b000") -> M_XA_ADD,
-    UInt("b001") -> M_XA_XOR,
-    UInt("b010") -> M_XA_OR,
-    UInt("b011") -> M_XA_AND,
-    UInt("b100") -> M_XA_MIN,
-    UInt("b101") -> M_XA_MAX,
-    UInt("b110") -> M_XA_MINU,
-    UInt("b111") -> M_XA_SWAP))
-  
-  // Addr_block range
-  val addr_block_mask = MaskMaker(tlBlockAddrBits, UInt(targetWidth-tlBeatAddrBits-tlByteAddrBits))
-  
-  // Generate some random values
-  val addr_block = NoiseMaker(tlBlockAddrBits, inc) & addr_block_mask
-  val addr_beat  = NoiseMaker(tlBeatAddrBits, inc)
-  val wmask      = NoiseMaker(tlDataBytes, inc)
-  val data       = NoiseMaker(tlDataBits, inc)
-  val client_xact_id = UInt(0) // filled by Client
-  
-  // Random transactions
-  val get         = Get(client_xact_id, addr_block, addr_beat, get_addr_byte, get_operand_size, Bool(false))
-  val getBlock    = GetBlock(client_xact_id, addr_block)
-  val put         = Put(client_xact_id, addr_block, addr_beat, data, Some(wmask))
-  val putBlock    = PutBlock(client_xact_id, addr_block, UInt(0), data)
-  val putAtomic   = if (atomics)
-    PutAtomic(client_xact_id, addr_block, addr_beat,
-      atomic_addr_byte, atomic_opcode, atomic_operand_size, data)
-    else put
-  val putPrefetch = if (prefetches)
-    PutPrefetch(client_xact_id, addr_block)
-    else put
-  val getPrefetch = if (prefetches)
-    GetPrefetch(client_xact_id, addr_block)
-    else get
-  val a_type_sel  = NoiseMaker(3, inc)
-
-  // We must initially putBlock all of memory to have a consistent starting state
-  val final_addr_block = addr_block_mask + UInt(1)
-  val wipe_addr_block  = RegInit(UInt(0, width = tlBlockAddrBits))
-  val done_wipe        = wipe_addr_block === final_addr_block
-
-  io.out.bits := Mux(!done_wipe,
-    // Override whatever else we were going to do if we are wiping
-    PutBlock(client_xact_id, wipe_addr_block, UInt(0), data),
-    // Generate a random a_type
-    MuxLookup(a_type_sel, get, Array(
-      UInt("b000") -> get,
-      UInt("b001") -> getBlock,
-      UInt("b010") -> put,
-      UInt("b011") -> putBlock,
-      UInt("b100") -> putAtomic,
-      UInt("b101") -> getPrefetch,
-      UInt("b110") -> putPrefetch)))
-  
-  val idx = Reg(init = UInt(0, log2Up(nOperations)))
-  when (io.out.fire()) {
-    when (idx === UInt(nOperations - 1)) { finished := Bool(true) }
-    when (!done_wipe) {
-      printf("[acq %d]: PutBlock(addr_block = %x, data = %x)\n",
-        idx, wipe_addr_block, data)
-      wipe_addr_block := wipe_addr_block + UInt(1)
-    } .otherwise {
-      switch (a_type_sel) {
-        is (UInt("b000")) {
-          printf("[acq %d]: Get(addr_block = %x, addr_beat = %x, addr_byte = %x, op_size = %x)\n",
-            idx, addr_block, addr_beat, get_addr_byte, get_operand_size)
-        }
-        is (UInt("b001")) {
-          printf("[acq %d]: GetBlock(addr_block = %x)\n", idx, addr_block)
-        }
-        is (UInt("b010")) {
-          printf("[acq %d]: Put(addr_block = %x, addr_beat = %x, data = %x, wmask = %x)\n",
-            idx, addr_block, addr_beat, data, wmask)
-        }
-        is (UInt("b011")) {
-          printf("[acq %d]: PutBlock(addr_block = %x, data = %x)\n", idx, addr_block, data)
-        }
-        is (UInt("b100")) {
-          if (atomics) {
-            printf("[acq %d]: PutAtomic(addr_block = %x, addr_beat = %x, addr_byte = %x, " +
-                   "opcode = %x, op_size = %x, data = %x)\n",
-                   idx, addr_block, addr_beat, atomic_addr_byte,
-                   atomic_opcode, atomic_operand_size, data)
-          } else {
-            printf("[acq %d]: Put(addr_block = %x, addr_beat = %x, data = %x, wmask = %x)\n",
-              idx, addr_block, addr_beat, data, wmask)
-          }
-        }
-        is (UInt("b101")) {
-          if (prefetches) {
-            printf("[acq %d]: GetPrefetch(addr_block = %x)\n", idx, addr_block)
-          } else {
-            printf("[acq %d]: Get(addr_block = %x, addr_beat = %x, addr_byte = %x, op_size = %x)\n",
-              idx, addr_block, addr_beat, get_addr_byte, get_operand_size)
-          }
-        }
-        is (UInt("b110")) {
-          if (prefetches) {
-            printf("[acq %d]: PutPrefetch(addr_block = %x)\n", idx, addr_block)
-          } else {
-            printf("[acq %d]: Put(addr_block = %x, addr_beat = %x, data = %x, wmask = %x)\n",
-              idx, addr_block, addr_beat, data, wmask)
-          }
-        }
-        is (UInt("b111")) {
-          printf("[acq %d]: Get(addr_block = %x, addr_beat = %x, addr_byte = %x, op_size = %x)\n",
-            idx, addr_block, addr_beat, get_addr_byte, get_operand_size)
-        }
-      }
-    }
-    idx := idx + UInt(1)
-  }
-}
-
-class ComparatorClient(val target: Long)(implicit val p: Parameters) extends Module
-    with HasComparatorParameters
-    with HasTileLinkParameters
-{
-  val io = new Bundle {
-    val in  = Decoupled(new Acquire).flip
-    val tl  = new ClientUncachedTileLinkIO()
-    val out = Decoupled(new Grant)
-    val finished = Bool(OUTPUT)
-    val timeout = Bool(OUTPUT)
-  }
-
-  val xacts = tlMaxClientXacts
-  val offset = (UInt(target) >> UInt(tlBeatAddrBits+tlByteAddrBits))
-
-  // Track the status of inflight requests
-  val issued  = RegInit(Vec.fill(xacts) {Bool(false)})
-  val ready   = RegInit(Vec.fill(xacts) {Bool(false)})
-  val result  = Reg(Vec(xacts, new Grant))
-  
-  val buffer = Queue(io.in, xacts)
-  val queue  = Module(new Queue(io.tl.acquire.bits.client_xact_id, xacts))
-  
-  val isMultiOut = buffer.bits.hasMultibeatData()
-  val isMultiIn  = io.tl.grant.bits.hasMultibeatData()
-  
-  val beatOut  = RegInit(UInt(0, width = tlBeatAddrBits))
-  val lastBeat = UInt(tlDataBeats-1)
-  val isFirstBeatOut= Mux(isMultiOut, beatOut === UInt(0),  Bool(true))
-  val isLastBeatOut = Mux(isMultiOut, beatOut === lastBeat, Bool(true))
-  val isLastBeatIn  = Mux(isMultiIn,  io.tl.grant.bits.addr_beat === lastBeat, Bool(true))
-
-  // Potentially issue a request, using a free xact id
-  // NOTE: we may retract valid and change xact_id on a !ready (allowed by spec)
-  val allow_acq = NoiseMaker(1)(0) && issued.map(!_).reduce(_ || _)
-  val xact_id   = PriorityEncoder(issued.map(!_)) holdUnless isFirstBeatOut
-  buffer.ready        := allow_acq && io.tl.acquire.ready && isLastBeatOut
-  io.tl.acquire.valid := allow_acq && buffer.valid
-  io.tl.acquire.bits  := buffer.bits
-  io.tl.acquire.bits.addr_block := buffer.bits.addr_block + offset
-  io.tl.acquire.bits.client_xact_id := xact_id
-  when (isMultiOut) {
-    val dataOut = (buffer.bits.data << beatOut) + buffer.bits.data // mix the data up a bit
-    io.tl.acquire.bits.addr_beat := beatOut
-    io.tl.acquire.bits.data := dataOut
-  }
-  
-  when (io.tl.acquire.fire()) {
-    issued(xact_id) := isLastBeatOut
-    when (isMultiOut) { beatOut := beatOut + UInt(1) }
-  }
-  
-  // Remember the xact ID so we can return results in-order
-  queue.io.enq.valid := io.tl.acquire.fire() && isLastBeatOut
-  queue.io.enq.bits  := xact_id
-  assert (queue.io.enq.ready || !queue.io.enq.valid) // should be big enough
-  
-  // Capture the results from the manager
-  io.tl.grant.ready := NoiseMaker(1)(0)
-  when (io.tl.grant.fire()) {
-    val id = io.tl.grant.bits.client_xact_id
-    assert (!ready(id)) // got same xact_id twice?
-    ready(id) := isLastBeatIn
-    result(id) := io.tl.grant.bits
-  }
-  
-  // Bad xact_id returned if ready but not issued!
-  assert ((ready zip issued) map {case (r,i) => i || !r} reduce (_ && _))
-  
-  // When we have the next grant result, send it to the sink
-  val next_id = queue.io.deq.bits
-  queue.io.deq.ready := io.out.ready && ready(next_id) // TODO: only compares last getBlock
-  io.out.valid := queue.io.deq.valid && ready(next_id)
-  io.out.bits  := result(queue.io.deq.bits)
-  
-  when (io.out.fire()) {
-    ready(next_id) := Bool(false)
-    issued(next_id) := Bool(false)
-  }
-  
-  io.finished := !buffer.valid && !issued.reduce(_ || _)
-
-  val (idx, acq_done) = Counter(
-    io.tl.acquire.fire() && io.tl.acquire.bits.last(), nOperations)
-
-  val timer = Module(new Timer(8192, xacts))
-  timer.io.start.valid := io.tl.acquire.fire() && io.tl.acquire.bits.first()
-  timer.io.start.bits  := xact_id
-  timer.io.stop.valid  := io.tl.grant.fire() && io.tl.grant.bits.first()
-  timer.io.stop.bits   := io.tl.grant.bits.client_xact_id
-  assert(!timer.io.timeout.valid, "Comparator TL client timed out")
-  io.timeout := timer.io.timeout.valid
-}
-
-class ComparatorSink(implicit val p: Parameters) extends Module
-    with HasComparatorParameters
-    with HasTileLinkParameters
-    with HasGroundTestConstants
-{
-  val io = new Bundle {
-    val in = Vec(nTargets, Decoupled(new Grant)).flip
-    val finished = Bool(OUTPUT)
-    val error = Valid(UInt(width = errorCodeBits))
-  }
-  
-  // could use a smaller Queue here, but would couple targets flow controls together
-  val queues = io.in.map(Queue(_, nOperations))
-  
-  io.finished := queues.map(!_.valid).reduce(_ && _)
-  val all_valid = queues.map(_.valid).reduce(_ && _)
-  queues.foreach(_.ready := all_valid)
-  
-  val base = queues(0).bits
-  val idx = Reg(init = UInt(0, log2Up(nOperations)))
-
-  def check(g: Grant) = {
-    when (g.hasData() && base.data =/= g.data) {
-      printf("%d: %x =/= %x, g_type = %x\n", idx, base.data, g.data, g.g_type)
-    }
-
-    val assert_conds = Seq(
-      g.is_builtin_type,
-      base.g_type === g.g_type,
-      base.addr_beat === g.addr_beat || !g.hasData(),
-      base.data === g.data || !g.hasData())
-
-    // TL1 likes to duplicate 32-bits into both halves of a 64-bit value
-    // TL2 doesn't do this, so they compare differently when they are the same
-    def isDupd(x: UInt) = if (tlDataBytes != 8) Bool(false) else x(31, 0) === x(63, 32)
-    def safeCompare(x: UInt, y: UInt) =
-      Mux(!isDupd(x) && !isDupd(y), x === y, x(63,32) === y(63,32) || x(31,0) === y(31,0))
-
-    assert (g.is_builtin_type, "grant not builtin")
-    assert (base.g_type === g.g_type, "g_type mismatch")
-    assert (base.addr_beat === g.addr_beat || !g.hasMultibeatData(), "addr_beat mismatch")
-    assert (base.data === g.data || !g.hasMultibeatData(), "multibeat data mismatch")
-    assert (safeCompare(base.data, g.data) || !g.hasData(),  "singlebeat data mismatch")
-
-    assert_conds.zipWithIndex.foreach { case (cond, i) =>
-      when (!cond) {
-        io.error.valid := Bool(true)
-        io.error.bits := UInt(i)
-      }
-    }
-  }
-  when (all_valid) {
-    when (base.hasData()) {
-      printf("[gnt %d]: g_type = %x, addr_beat = %x, data = %x\n",
-        idx, base.g_type, base.addr_beat, base.data)
-    } .otherwise {
-      printf("[gnt %d]: g_type = %x\n", idx, base.g_type)
-    }
-    queues.drop(1).map(_.bits).foreach(check)
-    idx := idx + UInt(1)
-  }
-}
-
-class ComparatorCore(implicit p: Parameters) extends GroundTest()(p)
-    with HasComparatorParameters
-    with HasTileLinkParameters {
-
-  require (io.mem.size == nTargets)
-  
-  val source = Module(new ComparatorSource)
-  val sink   = Module(new ComparatorSink)
-  val broadcast = Broadcaster(source.io.out, nTargets)
-  val clients = targets.zipWithIndex.map { case (target, index) =>
-    val client = Module(new ComparatorClient(target))
-    client.io.in <> broadcast(index)
-    io.mem(index) <> client.io.tl
-    sink.io.in(index) <> client.io.out
-    client
-  }
-  val client_timeouts = clients.map(_.io.timeout)
-  
-  io.status.finished := source.io.finished && sink.io.finished && clients.map(_.io.finished).reduce(_ && _)
-  io.status.timeout.valid := client_timeouts.reduce(_ || _)
-  io.status.timeout.bits := MuxCase(UInt(0),
-    client_timeouts.zipWithIndex.map {
-      case (timeout, i) => (timeout -> UInt(i))
-    })
-  io.status.error := sink.io.error
-}

src/main/scala/groundtest/Configs.scala

@@ -1,161 +1,40 @@
 // See LICENSE.SiFive for license details.
 // See LICENSE.Berkeley for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
 import Chisel._
-import rocket._
+import freechips.rocketchip.chip.{BaseConfig, ExtMem}
-import diplomacy._
+import freechips.rocketchip.config.Config
-import uncore.tilelink._
+import freechips.rocketchip.coreplex.{CacheBlockBytes, L1toL2Config, WithBufferlessBroadcastHub}
-import uncore.coherence._
+import freechips.rocketchip.rocket.{DCacheParams, PAddrBits}
-import uncore.agents._
+import freechips.rocketchip.tile.{MaxHartIdBits, XLen}
-import uncore.util._
-import tile.TileKey
-import junctions._
-import config._
-import coreplex._
-import rocketchip._
 
 /** Actual testing target Configs */
 
-class GroundTestConfig extends Config(new WithGroundTestTiles ++ new BaseConfig)
+class TraceGenConfig extends Config(new WithTraceGen(List.fill(2){ DCacheParams(nSets = 16, nWays = 1) }) ++ new BaseConfig)
 
-class ComparatorConfig extends Config(
+class TraceGenBufferlessConfig extends Config(new WithBufferlessBroadcastHub ++ new TraceGenConfig)
-  new WithComparator(1) ++ new GroundTestConfig)
-class ComparatorL2Config extends Config(
-  new WithAtomics ++ new WithPrefetches ++
-  new WithL2Cache ++ new ComparatorConfig)
-class ComparatorBufferlessConfig extends Config(
-  new WithBufferlessBroadcastHub ++ new ComparatorConfig)
-class ComparatorStatelessConfig extends Config(
-  new WithStatelessBridge ++ new ComparatorConfig)
-
-class MemtestConfig extends Config(new WithMemtest(1) ++ new GroundTestConfig)
-class MemtestL2Config extends Config(
-  new WithL2Cache ++ new MemtestConfig)
-class MemtestBufferlessConfig extends Config(
-  new WithBufferlessBroadcastHub ++ new MemtestConfig)
-class MemtestStatelessConfig extends Config(
-  new WithStatelessBridge ++ new MemtestConfig)
-// Test ALL the things
-class FancyMemtestConfig extends Config(
-  new WithMemtest(2) ++
-  new WithNMemoryChannels(2) ++ new WithNBanksPerMemChannel(4) ++
-  new WithL2Cache ++ new GroundTestConfig)
-
-class CacheFillTestConfig extends Config(
-  new WithNL2Ways(4) ++ new WithL2Capacity(4) ++ 
-  new WithCacheFillTest(1) ++ new WithL2Cache ++ new GroundTestConfig)
-
-class BroadcastRegressionTestConfig extends Config(
-  new WithBroadcastRegressionTest(1) ++ new GroundTestConfig)
-class BufferlessRegressionTestConfig extends Config(
-  new WithBufferlessBroadcastHub ++ new BroadcastRegressionTestConfig)
-class CacheRegressionTestConfig extends Config(
-  new WithCacheRegressionTest(1) ++ new WithL2Cache ++ new GroundTestConfig)
-
-class TraceGenConfig extends Config(
-  new WithTraceGen(2) ++ new GroundTestConfig)
-class TraceGenBufferlessConfig extends Config(
-  new WithBufferlessBroadcastHub ++ new TraceGenConfig)
-class TraceGenL2Config extends Config(
-  new WithNL2Ways(1) ++ new WithL2Capacity(32 * 64 / 1024) ++
-  new WithL2Cache ++ new TraceGenConfig)
-
-class Edge128BitComparatorConfig extends Config(
-  new WithEdgeDataBits(128) ++ new ComparatorConfig)
-class Edge128BitMemtestConfig extends Config(
-  new WithEdgeDataBits(128) ++ new MemtestConfig)
-
-class Edge32BitComparatorConfig extends Config(
-  new WithEdgeDataBits(32) ++ new ComparatorL2Config)
-class Edge32BitMemtestConfig extends Config(
-  new WithEdgeDataBits(32) ++ new MemtestConfig)
 
 /* Composable Configs to set individual parameters */
 
-class WithGroundTestTiles extends Config((site, here, up) => {
+class WithTraceGen(params: Seq[DCacheParams], nReqs: Int = 8192) extends Config((site, here, up) => {
-  case TileKey => site(GroundTestKey).head
+  case GroundTestTilesKey => params.map { dcp => TraceGenParams(
-  case NTiles => site(GroundTestKey).size
+    dcache = Some(dcp),
-})
+    wordBits = site(XLen),
-
+    addrBits = site(PAddrBits),
-class WithComparator(n: Int) extends Config((site, here, up) => {
+    addrBag = {
-  case GroundTestKey => Seq.fill(n) {
+      val nSets = 2
-    GroundTestTileParams(uncached = 2, dcache = None)
+      val nWays = 1
-  }
+      val blockOffset = log2Up(site(CacheBlockBytes))
-  case BuildGroundTest =>
+      val nBeats = site(CacheBlockBytes)/site(L1toL2Config).beatBytes
-    (p: Parameters) => Module(new ComparatorCore()(p))
+      List.tabulate(4 * nWays) { i =>
-  case ComparatorKey => ComparatorParameters(
+        Seq.tabulate(nBeats) { j => BigInt((j * 8) + ((i * nSets) << blockOffset)) }
-    targets    = Seq(site(ExtMem).base, testRamAddr),
+      }.flatten
-    width      = 8,
+    },
-    operations = 1000,
+    maxRequests = nReqs,
-    atomics    = false,
+    memStart = site(ExtMem).base,
-    prefetches = false)
+    numGens = params.size)
-})
+  }   
-
+  case MaxHartIdBits => log2Up(params.size)
-class WithAtomics extends Config((site, here, up) => {
-  case ComparatorKey => up(ComparatorKey, site).copy(atomics = true)
-})
-
-class WithPrefetches extends Config((site, here, up) => {
-  case ComparatorKey => up(ComparatorKey, site).copy(prefetches = true)
-})
-
-class WithMemtest(n: Int) extends Config((site, here, up) => {
-  case GroundTestKey => Seq.fill(n) {
-    GroundTestTileParams(uncached = 1)
-  }
-  case GeneratorKey => TrafficGeneratorParameters(
-    maxRequests = 128,
-    startAddress = BigInt(site(ExtMem).base))
-  case BuildGroundTest =>
-    (p: Parameters) => Module(new GeneratorTest()(p))
-})
-
-class WithCacheFillTest(n: Int) extends Config((site, here, up) => {
-  case GroundTestKey => Seq.fill(n) {
-    GroundTestTileParams(uncached = 1, dcache = None)
-  }
-  case BuildGroundTest =>
-    (p: Parameters) => Module(new CacheFillTest()(p))
-})
-
-class WithBroadcastRegressionTest(n: Int) extends Config((site, here, up) => {
-  case GroundTestKey => Seq.fill(n) {
-    GroundTestTileParams(uncached = 1, maxXacts = 3)
-  }
-  case BuildGroundTest =>
-    (p: Parameters) => Module(new RegressionTest()(p))
-  case GroundTestRegressions =>
-    (p: Parameters) => RegressionTests.broadcastRegressions(p)
-})
-
-class WithCacheRegressionTest(n: Int) extends Config((site, here, up) => {
-  case GroundTestKey => Seq.fill(n) {
-    GroundTestTileParams(uncached = 1, maxXacts = 5)
-  }
-  case BuildGroundTest =>
-    (p: Parameters) => Module(new RegressionTest()(p))
-  case GroundTestRegressions =>
-    (p: Parameters) => RegressionTests.cacheRegressions(p)
-})
-
-class WithTraceGen(n: Int) extends Config((site, here, up) => {
-  case GroundTestKey => Seq.fill(n) {
-    GroundTestTileParams(dcache = Some(DCacheParams(nSets = 16, nWays = 1)))
-  }
-  case BuildGroundTest =>
-    (p: Parameters) => Module(new GroundTestTraceGenerator()(p))
-  case GeneratorKey => TrafficGeneratorParameters(
-    maxRequests = 8192,
-    startAddress = 0)
-  case AddressBag => {
-    val nSets = 2
-    val nWays = 1
-    val blockOffset = site(CacheBlockOffsetBits)
-    val nBeats = site(CacheBlockBytes)/site(L1toL2Config).beatBytes
-    List.tabulate(4 * nWays) { i =>
-      Seq.tabulate(nBeats) { j => BigInt((j * 8) + ((i * nSets) << blockOffset)) }
-    }.flatten
-  }
 })

src/main/scala/groundtest/Coreplex.scala

@@ -1,44 +1,27 @@
 // See LICENSE.SiFive for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
 import Chisel._
-import config._
+
-import diplomacy._
+import freechips.rocketchip.config.{Field, Parameters}
-import coreplex._
+import freechips.rocketchip.diplomacy._
-import rocket._
+import freechips.rocketchip.coreplex._
-import tile._
+import freechips.rocketchip.tilelink._
-import uncore.agents._
+import freechips.rocketchip.tile._
-import uncore.coherence._
+
-import uncore.devices._
-import uncore.tilelink._
-import uncore.tilelink2._
-import uncore.util._
 import scala.math.max
 
 case object TileId extends Field[Int]
 
 class GroundTestCoreplex(implicit p: Parameters) extends BaseCoreplex {
-  val tiles = List.tabulate(p(NTiles)) { i =>
+  val tileParams = p(GroundTestTilesKey)
-    LazyModule(new GroundTestTile()(p.alter { (site, here, up) => {
+  val tiles = tileParams.zipWithIndex.map { case(c, i) => LazyModule(
-      case TileId => i
+    c.build(i, p.alterPartial {
-      case CacheBlockOffsetBits => log2Up(site(CacheBlockBytes))
+      case TileKey => c
-      case AmoAluOperandBits => site(XLen)
       case SharedMemoryTLEdge => tile_splitter.node.edgesIn(0)
-      case TLId => "L1toL2"
+    })
-      case TLKey("L1toL2") =>
+  )}
-        TileLinkParameters(
-          coherencePolicy = new MESICoherence(new NullRepresentation(site(NTiles))),
-          nManagers = site(BankedL2Config).nBanks + 1,
-          nCachingClients = 1,
-          nCachelessClients = 1,
-          maxClientXacts = site(GroundTestKey).map(_.maxXacts).reduce(max(_, _)),
-          maxClientsPerPort = site(GroundTestKey).map(_.uncached).sum,
-          maxManagerXacts = 8,
-          dataBeats = (8 * site(CacheBlockBytes)) / site(XLen),
-          dataBits = site(CacheBlockBytes)*8)
-    }}))
-  }
 
   val fixer = LazyModule(new TLFIFOFixer)
   tile_splitter.node :=* fixer.node
@@ -55,5 +38,9 @@ class GroundTestCoreplexBundle[+L <: GroundTestCoreplex](_outer: L) extends Base
 }
 
 class GroundTestCoreplexModule[+L <: GroundTestCoreplex, +B <: GroundTestCoreplexBundle[L]](_outer: L, _io: () => B) extends BaseCoreplexModule(_outer, _io) {
-  io.success := outer.tiles.map(_.module.io.success).reduce(_&&_)
+
+  outer.tiles.zipWithIndex.map { case(t, i) => t.module.io.hartid := UInt(i) }
+
+  val status = DebugCombiner(outer.tiles.map(_.module.io.status))
+  io.success := status.finished
 }

src/main/scala/groundtest/DummyPTW.scala

@@ -1,13 +1,14 @@
 // See LICENSE.SiFive for license details.
 // See LICENSE.Berkeley for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
 import Chisel._
-import config._
+
-import rocket._
+import freechips.rocketchip.config.Parameters
-import tile._
+import freechips.rocketchip.rocket._
-import util.ParameterizedBundle
+import freechips.rocketchip.tile.CoreModule
+import freechips.rocketchip.util.ParameterizedBundle
 
 class DummyPTW(n: Int)(implicit p: Parameters) extends CoreModule()(p) {
   val io = new Bundle {

src/main/scala/groundtest/Generator.scala

@@ -1,8 +1,10 @@
 // See LICENSE.SiFive for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
-object Generator extends util.GeneratorApp {
+import freechips.rocketchip.util.GeneratorApp
+
+object Generator extends GeneratorApp {
   val longName = names.topModuleProject + "." + names.configs
   generateFirrtl
   generateTestSuiteMakefrags // TODO: Needed only for legacy make targets

src/main/scala/groundtest/Package.scala

@@ -1,5 +1,9 @@
 // See LICENSE.SiFive for license details.
 
+package freechips.rocketchip
+
 package object groundtest {
   val testRamAddr = 0x10000
+  val timeoutCodeBits = 4
+  val errorCodeBits = 4
 }

src/main/scala/groundtest/Regression.scala

@@ -1,789 +0,0 @@
-// See LICENSE.Berkeley for license details.
-// See LICENSE.SiFive for license details.
-
-package groundtest
-
-import Chisel._
-import uncore.tilelink._
-import uncore.constants._
-import uncore.util._
-import util._
-import rocket._
-import rocketchip._
-import config._
-
-class RegressionIO(implicit val p: Parameters) extends ParameterizedBundle()(p) {
-  val start = Bool(INPUT)
-  val cache = new HellaCacheIO
-  val mem = new ClientUncachedTileLinkIO
-  val finished = Bool(OUTPUT)
-  val errored = Bool(OUTPUT)
-}
-
-abstract class Regression(implicit val p: Parameters)
-    extends Module with HasTileLinkParameters {
-  val memStart = p(ExtMem).base
-  val memStartBlock = memStart >> p(CacheBlockOffsetBits)
-  val io = new RegressionIO
-
-  def disableCache() {
-    io.cache.req.valid := Bool(false)
-    io.cache.req.bits.addr := UInt(memStart)
-    io.cache.req.bits.typ  := UInt(0)
-    io.cache.req.bits.cmd  := M_XRD
-    io.cache.req.bits.tag  := UInt(0)
-    io.cache.req.bits.data := Bits(0)
-    io.cache.req.bits.phys := Bool(true)
-    io.cache.invalidate_lr := Bool(false)
-  }
-
-  def disableMem() {
-    io.mem.acquire.valid := Bool(false)
-    io.mem.grant.ready := Bool(false)
-  }
-}
-
-/**
- * This was a bug in which the TileLinkIONarrower logic screwed up
- * when a PutBlock request and a narrow Get request are sent to it at the
- * same time. Repeating this sequence enough times will cause a queue to
- * get filled up and deadlock the system.
- */
-class IOGetAfterPutBlockRegression(implicit p: Parameters) extends Regression()(p) {
-  val nRuns = 7
-  val run = Reg(init = UInt(0, log2Up(nRuns + 1)))
-
-  val (put_beat, put_done) = Counter(
-    io.mem.acquire.fire() && io.mem.acquire.bits.hasData(), tlDataBeats)
-
-  val started = Reg(init = Bool(false))
-  val put_sent = Reg(init = Bool(false))
-  val get_sent = Reg(init = Bool(false))
-  val put_acked = Reg(init = Bool(false))
-  val get_acked = Reg(init = Bool(false))
-  val both_acked = put_acked && get_acked
-
-  when (!started && io.start) { started := Bool(true) }
-
-  io.mem.acquire.valid := !put_sent && started
-  io.mem.acquire.bits := PutBlock(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock),
-    addr_beat = put_beat,
-    data = UInt(0))
-  io.mem.grant.ready := Bool(true)
-
-  io.cache.req.valid := !get_sent && started
-  io.cache.req.bits.addr := UInt(testRamAddr)
-  io.cache.req.bits.typ := MT_WU
-  io.cache.req.bits.cmd := M_XRD
-  io.cache.req.bits.tag := UInt(0)
-  io.cache.invalidate_lr := Bool(false)
-
-  when (put_done) { put_sent := Bool(true) }
-  when (io.cache.req.fire()) { get_sent := Bool(true) }
-  when (io.mem.grant.fire()) { put_acked := Bool(true) }
-  when (io.cache.resp.valid) { get_acked := Bool(true) }
-
-  when (both_acked) {
-    when (run < UInt(nRuns - 1)) {
-      put_sent := Bool(false)
-      get_sent := Bool(false)
-    }
-    put_acked := Bool(false)
-    get_acked := Bool(false)
-    run := run + UInt(1)
-  }
-
-  io.finished := (run === UInt(nRuns))
-}
-
-/* This was a bug with merging two PutBlocks to the same address in the L2.
- * The transactor would start accepting beats of the second transaction but
- * acknowledge both of them when the first one finished.
- * This caused the state to go funky since the next time around it would
- * start the put in the middle */
-class PutBlockMergeRegression(nSets: Int)(implicit p: Parameters)
-    extends Regression()(p) with HasTileLinkParameters {
-  val s_idle :: s_put :: s_wait :: s_done :: Nil = Enum(Bits(), 4)
-  val state = Reg(init = s_idle)
-
-  disableCache()
-
-  val addr_blocks = Vec(Seq(0, 0, nSets).map(num => UInt(num + memStartBlock)))
-  val nSteps = addr_blocks.size
-  val (acq_beat, acq_done) = Counter(io.mem.acquire.fire(), tlDataBeats)
-  val (send_cnt, send_done) = Counter(acq_done, nSteps)
-  val (ack_cnt, ack_done) = Counter(io.mem.grant.fire(), nSteps)
-
-  io.mem.acquire.valid := (state === s_put)
-  io.mem.acquire.bits := PutBlock(
-    client_xact_id = send_cnt,
-    addr_block = addr_blocks(send_cnt),
-    addr_beat = acq_beat,
-    data = Cat(send_cnt, acq_beat))
-  io.mem.grant.ready := Bool(true)
-
-  when (state === s_idle && io.start) { state := s_put }
-  when (send_done) { state := s_wait }
-  when (ack_done) { state := s_done }
-
-  io.finished := (state === s_done)
-}
-
-/* Make sure the L2 does "the right thing" when a put is sent no-alloc but
- * the block is already in cache. It should just treat the request as a
- * regular allocating put */
-class NoAllocPutHitRegression(implicit p: Parameters) extends Regression()(p) {
-  val (s_idle :: s_prefetch :: s_put :: s_get ::
-       s_wait :: s_done :: Nil) = Enum(Bits(), 6)
-  val state = Reg(init = s_idle)
-
-  val acq = io.mem.acquire.bits
-  val gnt = io.mem.grant.bits
-
-  val (put_beat, put_done) = Counter(io.mem.acquire.fire() && acq.hasData(), tlDataBeats)
-  val acked = Reg(init = UInt(0, tlDataBeats + 2))
-
-  val addr_block = UInt(memStartBlock + 2)
-  val test_data = UInt(0x3446)
-
-  val prefetch_acq = GetPrefetch(
-    client_xact_id = UInt(0),
-    addr_block = addr_block)
-  val put_acq = PutBlock(
-    client_xact_id = UInt(1),
-    addr_block = addr_block,
-    addr_beat = put_beat,
-    data = test_data,
-    alloc = Bool(false))
-  val get_acq = GetBlock(
-    client_xact_id = UInt(2),
-    addr_block = addr_block)
-
-  io.mem.acquire.valid := state.isOneOf(s_prefetch, s_get, s_put)
-  io.mem.acquire.bits := MuxCase(get_acq, Seq(
-    (state === s_prefetch) -> prefetch_acq,
-    (state === s_put) -> put_acq))
-  io.mem.grant.ready := Bool(true)
-
-  when (state === s_idle && io.start) { state := s_prefetch }
-  when (state === s_prefetch && io.mem.acquire.ready) { state := s_put }
-  when (put_done) { state := s_get }
-  when (state === s_get && io.mem.acquire.ready) { state := s_wait }
-  when (state === s_wait && acked.andR) { state := s_done }
-
-  when (io.mem.grant.fire()) {
-    switch (gnt.client_xact_id) {
-      is (UInt(0)) { acked := acked | UInt(1 << tlDataBeats) }
-      is (UInt(1)) { acked := acked | UInt(1 << (tlDataBeats + 1)) }
-      is (UInt(2)) { acked := acked | UIntToOH(gnt.addr_beat) }
-    }
-  }
-
-  val data_mismatch = io.mem.grant.fire() && gnt.hasData() && gnt.data =/= test_data
-  assert(!data_mismatch, "NoAllocPutHitRegression: data does not match")
-
-  io.finished := (state === s_done)
-  io.errored := data_mismatch
-
-  disableCache()
-}
-
-/** Make sure L2 does the right thing when multiple puts are sent for the
- *  same block, but only the first one has the alloc bit set. */
-class MixedAllocPutRegression(implicit p: Parameters) extends Regression()(p) {
-  val (s_idle :: s_pf_send :: s_pf_wait :: s_put_send :: s_put_wait ::
-       s_get_send :: s_get_wait :: s_done :: Nil) = Enum(Bits(), 8)
-  val state = Reg(init = s_idle)
-
-  /** We have to test two cases: one when the block is already cached
-   *  and one when the block is not yet cached.
-   *  We use prefetching to assure the first case. */
-  val test_data = Vec(
-    UInt("h2222222211111111"),
-    UInt("h3333333333333333"),
-    UInt("h4444444444444444"),
-    UInt("h5555555555555555"))
-  val test_alloc = Vec(Bool(false), Bool(false), Bool(true), Bool(false))
-  val test_block = Vec(
-    Seq.fill(2) { UInt(memStartBlock + 15) } ++
-    Seq.fill(2) { UInt(memStartBlock + 16) })
-  val test_beat = Vec(UInt(0), UInt(2), UInt(1), UInt(2))
-
-  val (put_acq_id, put_acq_done) = Counter(
-    state === s_put_send && io.mem.acquire.ready, test_data.size)
-  val (put_gnt_cnt, put_gnt_done) = Counter(
-    state === s_put_wait && io.mem.grant.valid, test_data.size)
-
-  val (get_acq_id, get_acq_done) = Counter(
-    state === s_get_send && io.mem.acquire.ready, test_data.size)
-  val (get_gnt_cnt, get_gnt_done) = Counter(
-    state === s_get_wait && io.mem.grant.valid, test_data.size)
-
-  val pf_acquire = PutPrefetch(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock + 15))
-
-  val put_acquire = Put(
-    client_xact_id = put_acq_id,
-    addr_block = test_block(put_acq_id),
-    addr_beat = test_beat(put_acq_id),
-    data = test_data(put_acq_id),
-    alloc = test_alloc(put_acq_id))
-
-  val get_acquire = Get(
-    client_xact_id = get_acq_id,
-    addr_block = test_block(get_acq_id),
-    addr_beat = test_beat(get_acq_id))
-
-  io.mem.acquire.valid := state.isOneOf(s_pf_send, s_put_send, s_get_send)
-  io.mem.acquire.bits := MuxLookup(state, pf_acquire, Seq(
-    s_put_send -> put_acquire,
-    s_get_send -> get_acquire))
-  io.mem.grant.ready := state.isOneOf(s_pf_wait, s_put_wait, s_get_wait)
-
-  when (state === s_idle && io.start) { state := s_pf_send }
-  when (state === s_pf_send && io.mem.acquire.ready) { state := s_pf_wait }
-  when (state === s_pf_wait && io.mem.grant.valid) { state := s_put_send }
-  when (put_acq_done) { state := s_put_wait }
-  when (put_gnt_done) { state := s_get_send }
-  when (get_acq_done) { state := s_get_wait }
-  when (get_gnt_done) { state := s_done }
-
-  io.finished := (state === s_done)
-
-  val data_mismatch = state === s_get_wait && io.mem.grant.fire() &&
-    io.mem.grant.bits.data =/= test_data(io.mem.grant.bits.client_xact_id)
-  assert(!data_mismatch, "MixedAllocPutRegression: data mismatch")
-  io.errored := data_mismatch
-
-  disableCache()
-}
-
-/* Make sure each no-alloc put triggers a request to outer memory.
- * Unfortunately, there's no way to verify that this works except by looking
- * at the waveform */
-class RepeatedNoAllocPutRegression(implicit p: Parameters) extends Regression()(p) {
-  disableCache()
-
-  val nPuts = 2
-  val (put_beat, put_done) = Counter(io.mem.acquire.fire(), tlDataBeats)
-  val (req_cnt, req_done) = Counter(put_done, nPuts)
-
-  val sending = Reg(init = Bool(false))
-  val acked = Reg(init = UInt(0, nPuts))
-
-  when (!sending && io.start) { sending := Bool(true) }
-  when (sending && req_done) { sending := Bool(false) }
-
-  io.mem.acquire.valid := sending
-  io.mem.acquire.bits := PutBlock(
-    client_xact_id = req_cnt,
-    addr_block = UInt(memStartBlock + 5),
-    addr_beat = put_beat,
-    data = Cat(req_cnt, UInt(0, 8)),
-    alloc = Bool(false))
-  io.mem.grant.ready := Bool(true)
-
-  when (io.mem.grant.fire()) {
-    acked := acked | UIntToOH(io.mem.grant.bits.client_xact_id)
-  }
-
-  io.finished := acked.andR
-}
-
-/* Make sure write masking works properly by writing a block of data
- * piece by piece */
-class WriteMaskedPutBlockRegression(implicit p: Parameters) extends Regression()(p) {
-  disableCache()
-
-  val (s_idle :: s_put_send :: s_put_ack :: s_stall ::
-       s_get_send :: s_get_ack :: s_done :: Nil) = Enum(Bits(), 7)
-  val state = Reg(init = s_idle)
-  val post_stall_state = Reg(init = s_idle)
-
-  val gnt = io.mem.grant.bits
-  val acq = io.mem.acquire.bits
-
-  val stage = Reg(init = UInt(0, 1))
-
-  val (put_beat, put_block_done) = Counter(
-    io.mem.acquire.fire() && acq.hasData(), tlDataBeats)
-  val put_data = UInt(0x30010040, tlDataBits) + (put_beat << UInt(2))
-
-  val put_acq = PutBlock(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock + 7),
-    addr_beat = put_beat,
-    data = Mux(put_beat(0) === stage, put_data, UInt(0)),
-    wmask = Some(Mux(put_beat(0) === stage, Acquire.fullWriteMask, Bits(0))))
-
-  val get_acq = GetBlock(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock + 6) + stage)
-
-  io.mem.acquire.valid := state.isOneOf(s_put_send, s_get_send)
-  io.mem.acquire.bits := Mux(state === s_get_send, get_acq, put_acq)
-  io.mem.grant.ready := state.isOneOf(s_put_ack, s_get_ack)
-
-  val (get_cnt, get_done) = Counter(
-    io.mem.grant.fire() && gnt.hasData(), tlDataBeats)
-  val get_data = UInt(0x30010040, tlDataBits) + (get_cnt << UInt(2))
-
-  val (stall_cnt, stall_done) = Counter(state === s_stall, 16)
-
-  when (state === s_idle && io.start) { state := s_put_send }
-  when (put_block_done) { state := s_put_ack }
-  when (state === s_put_ack && io.mem.grant.valid) {
-    post_stall_state := s_get_send
-    state := s_stall
-  }
-  when (stall_done) { state := post_stall_state }
-  when (state === s_get_send && io.mem.acquire.ready) { state := s_get_ack }
-  when (get_done) {
-    // do a read in-between the two put-blocks to overwrite the data buffer
-    when (stage === UInt(0)) {
-      stage := stage + UInt(1)
-      post_stall_state := s_put_send
-      state := s_stall
-    } .otherwise { state := s_done }
-  }
-
-  io.finished := (state === s_done)
-
-  val data_mismatch = io.mem.grant.fire() && io.mem.grant.bits.hasData() &&
-                      stage =/= UInt(0) && io.mem.grant.bits.data =/= get_data
-  assert(!data_mismatch, "WriteMaskedPutBlockRegression: data does not match")
-  io.errored := data_mismatch
-}
-
-/* Make sure a prefetch that hits returns immediately. */
-class PrefetchHitRegression(implicit p: Parameters) extends Regression()(p) {
-  disableCache()
-
-  val sending = Reg(init = Bool(false))
-  val nPrefetches = 2
-  val (pf_cnt, pf_done) = Counter(io.mem.acquire.fire(), nPrefetches)
-  val acked = Reg(init = UInt(0, nPrefetches))
-
-  val acq_bits = Vec(
-    PutPrefetch(client_xact_id = UInt(0), addr_block = UInt(memStartBlock + 12)),
-    GetPrefetch(client_xact_id = UInt(1), addr_block = UInt(memStartBlock + 12)))
-
-  io.mem.acquire.valid := sending
-  io.mem.acquire.bits := acq_bits(pf_cnt)
-  io.mem.grant.ready := Bool(true)
-
-  when (io.mem.grant.fire()) {
-    acked := acked | UIntToOH(io.mem.grant.bits.client_xact_id)
-  }
-
-  when (!sending && io.start) { sending := Bool(true) }
-  when (sending && pf_done) { sending := Bool(false) }
-
-  io.finished := acked.andR
-  io.errored := Bool(false)
-}
-
-/* Test that a writeback will occur by writing nWays + 1 blocks to the same
- * set. This assumes that there is only a single cache bank. If we want to
- * test multibank configurations, we'll have to think of some other way to
- * determine which banks are conflicting */
-class WritebackRegression(nSets: Int, nWays: Int)(implicit p: Parameters) extends Regression()(p) {
-  disableCache()
-
-  val addr_blocks = Vec.tabulate(nWays + 1) { i => UInt(memStartBlock + i * nSets) }
-  val data = Vec.tabulate(nWays + 1) { i => UInt((i + 1) * 1423) }
-
-  val (put_beat, put_done) = Counter(
-    io.mem.acquire.fire() && io.mem.acquire.bits.hasData(), tlDataBeats)
-  val (get_beat, get_done) = Counter(
-    io.mem.grant.fire() && io.mem.grant.bits.hasData(), tlDataBeats)
-  val (put_cnt, _) = Counter(put_done, nWays + 1)
-  val (get_cnt, _) = Counter(
-    io.mem.acquire.fire() && !io.mem.acquire.bits.hasData(), nWays + 1)
-  val (ack_cnt, ack_done) = Counter(
-    io.mem.grant.fire() && !io.mem.grant.bits.hasData() || get_done, nWays + 1)
-
-  val s_idle :: s_put :: s_get :: s_done :: Nil = Enum(Bits(), 4)
-  val state = Reg(init = s_idle)
-  val sending = Reg(init = Bool(false))
-
-  io.mem.acquire.valid := sending
-  io.mem.acquire.bits := Mux(state === s_put,
-    PutBlock(
-      client_xact_id = UInt(0),
-      addr_block = addr_blocks(put_cnt),
-      addr_beat = put_beat,
-      data = data(put_cnt)),
-    GetBlock(
-      client_xact_id = UInt(0),
-      addr_block = addr_blocks(get_cnt)))
-  io.mem.grant.ready := !sending
-
-  when (state === s_idle && io.start) { state := s_put; sending := Bool(true) }
-  when (put_done || state === s_get && io.mem.acquire.fire()) {
-    sending := Bool(false)
-  }
-  when (get_done && !ack_done || state === s_put && io.mem.grant.fire()) {
-    sending := Bool(true)
-  }
-  when (ack_done) { state := Mux(state === s_put, s_get, s_done) }
-
-  io.finished := (state === s_done)
-
-  val data_mismatch = io.mem.grant.fire() && io.mem.grant.bits.hasData() &&
-                      io.mem.grant.bits.data =/= data(ack_cnt)
-  assert(!data_mismatch, "WritebackRegression: incorrect data")
-  io.errored := data_mismatch
-}
-
-class ReleaseRegression(nSets: Int, nWays: Int)(implicit p: Parameters) extends Regression()(p) {
-  disableMem()
-
-  val blockOffset = p(CacheBlockOffsetBits)
-
-  val startBlock = memStartBlock + 10
-  val addr_blocks = Vec.tabulate(nWays + 1) { i => UInt(startBlock + i * nSets) }
-  val data = Vec.tabulate(nWays + 1) { i => UInt((i + 1) * 1522) }
-  val (req_idx, req_done) = Counter(io.cache.req.fire(), nWays + 1)
-  val (resp_idx, resp_done) = Counter(io.cache.resp.valid, nWays + 1)
-
-  val sending = Reg(init = Bool(false))
-  val s_idle :: s_write :: s_read :: s_done :: Nil = Enum(Bits(), 4)
-  val state = Reg(init = s_idle)
-
-  io.cache.req.valid := sending && state.isOneOf(s_write, s_read)
-  io.cache.req.bits.addr := Cat(addr_blocks(req_idx), UInt(0, blockOffset))
-  io.cache.req.bits.typ := MT_D
-  io.cache.req.bits.cmd := Mux(state === s_write, M_XWR, M_XRD)
-  io.cache.req.bits.tag := UInt(0)
-  io.cache.req.bits.data := data(req_idx)
-  io.cache.req.bits.phys := Bool(true)
-  io.cache.invalidate_lr := Bool(false)
-
-  when (state === s_idle && io.start) {
-    sending := Bool(true)
-    state := s_write
-  }
-
-  when (resp_done) { state := Mux(state === s_write, s_read, s_done) }
-  when (io.cache.req.fire()) { sending := Bool(false) }
-  when (io.cache.resp.valid) { sending := Bool(true) }
-
-  io.finished := (state === s_done)
-
-  val data_mismatch = io.cache.resp.valid && io.cache.resp.bits.has_data &&
-                      io.cache.resp.bits.data =/= data(resp_idx)
-  assert(!data_mismatch, "ReleaseRegression: data mismatch")
-  io.errored := data_mismatch
-}
-
-class PutBeforePutBlockRegression(implicit p: Parameters) extends Regression()(p) {
-  val (s_idle :: s_put :: s_putblock :: s_wait ::
-       s_finished :: Nil) = Enum(Bits(), 5)
-  val state = Reg(init = s_idle)
-
-  disableCache()
-
-  val (put_block_beat, put_block_done) = Counter(
-    state === s_putblock && io.mem.acquire.ready, tlDataBeats)
-
-  val put_acquire = Put(
-    client_xact_id = UInt(0),
-    addr_block = UInt(memStartBlock),
-    addr_beat = UInt(0),
-    data = UInt(0),
-    wmask = Some(UInt((1 << 8) - 1)))
-
-  val put_block_acquire = PutBlock(
-    client_xact_id = UInt(1),
-    addr_block = UInt(memStartBlock + 1),
-    addr_beat = put_block_beat,
-    data = UInt(0))
-
-  val put_acked = Reg(init = UInt(0, 2))
-
-  val (ack_cnt, all_acked) = Counter(io.mem.grant.fire(), 2)
-
-  io.mem.acquire.valid := state.isOneOf(s_put, s_putblock)
-  io.mem.acquire.bits := Mux(state === s_put, put_acquire, put_block_acquire)
-  io.mem.grant.ready := (state === s_wait)
-
-  when (state === s_idle && io.start) { state := s_put }
-  when (state === s_put && io.mem.acquire.ready) { state := s_putblock }
-  when (put_block_done) { state := s_wait }
-  when (all_acked) { state := s_finished }
-
-  io.finished := (state === s_finished)
-  io.errored := Bool(false)
-}
-
-/**
- * Make sure that multiple gets to the same line and beat are merged
- * correctly, even if it is a cache miss.
- */
-class MergedGetRegression(nSets: Int, nWays: Int)(implicit p: Parameters) extends Regression()(p) {
-  disableCache()
-
-  val (s_idle :: s_put :: s_get :: s_done :: Nil) = Enum(Bits(), 4)
-  val state = Reg(init = s_idle)
-
-  // Write NWays + 1 different conflicting lines to force an eviction of the first line
-  val (put_acq_cnt, put_acq_done) = Counter(state === s_put && io.mem.acquire.fire(), nWays + 1)
-  val (put_gnt_cnt, put_gnt_done) = Counter(state === s_put && io.mem.grant.fire(), nWays + 1)
-  val put_addr = UInt(memStartBlock) + Cat(put_acq_cnt, UInt(0, log2Up(nSets)))
-
-  val (get_acq_cnt, get_acq_done) = Counter(state === s_get && io.mem.acquire.fire(), 2)
-  val (get_gnt_cnt, get_gnt_done) = Counter(state === s_get && io.mem.grant.fire(), 2)
-  val sending = Reg(init = Bool(false))
-
-  when (state === s_idle && io.start) { state := s_put; sending := Bool(true) }
-  when (state === s_put) {
-    when (io.mem.acquire.fire()) { sending := Bool(false) }
-    when (io.mem.grant.fire()) { sending := Bool(true) }
-    when (put_gnt_done) { state := s_get }
-  }
-  when (state === s_get) {
-    when (get_acq_done) { sending := Bool(false) }
-    when (get_gnt_done) { state := s_done }
-  }
-
-  io.mem.acquire.valid := sending
-  io.mem.acquire.bits := Mux(state === s_put,
-    Put(
-      client_xact_id = UInt(0),
-      addr_block = put_addr,
-      addr_beat = UInt(3),
-      data = UInt("hdabb9321")),
-    Get(
-      client_xact_id = get_acq_cnt,
-      addr_block = UInt(memStartBlock),
-      addr_beat = UInt(3)))
-  io.mem.grant.ready := !sending
-
-  val data_mismatch = io.mem.grant.valid && io.mem.grant.bits.hasData() &&
-                      io.mem.grant.bits.data =/= UInt("hdabb9321")
-  assert(!data_mismatch, "RepeatedGetRegression: wrong data back")
-
-  io.finished := state === s_done
-  io.errored := data_mismatch
-}
-
-/**
- * Make sure that multiple puts to the same line and beat are merged
- * correctly, even if there is a release from the L1
- */
-class MergedPutRegression(implicit p: Parameters) extends Regression()(p)
-    with HasTileLinkParameters {
-  val (s_idle :: s_cache_req :: s_cache_wait ::
-       s_put :: s_get :: s_done :: Nil) = Enum(Bits(), 6)
-  val state = Reg(init = s_idle)
-
-  io.cache.req.valid := (state === s_cache_req)
-  io.cache.req.bits.cmd := M_XWR
-  io.cache.req.bits.typ := MT_D
-  io.cache.req.bits.addr := UInt(memStart)
-  io.cache.req.bits.data := UInt(1)
-  io.cache.req.bits.tag := UInt(0)
-
-  val sending = Reg(init = Bool(false))
-  val delaying = Reg(init = Bool(false))
-  val (put_cnt, put_done) = Counter(io.mem.acquire.fire(), tlMaxClientXacts)
-  val (delay_cnt, delay_done) = Counter(delaying, 8)
-  val put_acked = Reg(UInt(width = tlMaxClientXacts), init = UInt(0))
-
-  io.mem.acquire.valid := sending && !delaying
-  io.mem.acquire.bits := Mux(state === s_put,
-    Put(
-      client_xact_id = put_cnt,
-      addr_block = UInt(memStartBlock),
-      addr_beat = UInt(0),
-      data = put_cnt + UInt(2)),
-    Get(
-      client_xact_id = UInt(0),
-      addr_block = UInt(memStartBlock),
-      addr_beat = UInt(0)))
-  io.mem.grant.ready := Bool(true)
-
-  when (state === s_idle && io.start) { state := s_cache_req }
-  when (io.cache.req.fire()) { state := s_cache_wait }
-  when (io.cache.resp.valid) { state := s_put; sending := Bool(true) }
-
-  when (io.mem.acquire.fire()) {
-    delaying := Bool(true)
-    when (put_done || state === s_get) { sending := Bool(false) }
-  }
-  when (delay_done) { delaying := Bool(false) }
-
-  when (io.mem.grant.fire()) {
-    when (state === s_put) {
-      put_acked := put_acked | UIntToOH(io.mem.grant.bits.client_xact_id)
-    }
-    when (state === s_get) { state := s_done }
-  }
-
-  when (state === s_put && put_acked.andR) {
-    state := s_get
-    sending := Bool(true)
-  }
-
-  val expected_data = UInt(2 + tlMaxClientXacts - 1)
-  val data_mismatch = io.mem.grant.valid && io.mem.grant.bits.hasData() &&
-    io.mem.grant.bits.data =/= expected_data
-
-  assert(!data_mismatch, "MergedPutRegression: data mismatch")
-
-  io.finished := (state === s_done)
-  io.errored := data_mismatch
-}
-
-class PutAfterReleaseRegression(implicit p: Parameters) extends Regression()(p) {
-  val (s_idle :: s_cache_req :: s_cache_resp ::
-       s_write_first_req :: s_delay :: s_write_remaining_req :: s_write_resp ::
-       s_read_req :: s_read_resp :: s_finished :: Nil) = Enum(Bits(), 10)
-  val state = Reg(init = s_idle)
-
-  val (delay_cnt, delay_done) = Counter(state === s_delay, 100)
-  val (write_cnt, write_done) = Counter(
-    io.mem.acquire.fire() && io.mem.acquire.bits.hasData(), tlDataBeats)
-  val (read_cnt, read_done) = Counter(
-    io.mem.grant.fire() && io.mem.grant.bits.hasData(), tlDataBeats)
-
-  when (state === s_idle && io.start) { state := s_cache_req }
-  when (io.cache.req.fire()) { state := s_cache_resp }
-  when (state === s_cache_resp && io.cache.resp.valid) { state := s_write_first_req }
-  when (state === s_write_first_req && io.mem.acquire.ready) { state := s_delay }
-  when (delay_done) { state := s_write_remaining_req }
-  when (write_done) { state := s_write_resp }
-  when (state === s_write_resp && io.mem.grant.valid) { state := s_read_req }
-  when (state === s_read_req && io.mem.acquire.ready) { state := s_read_resp }
-  when (read_done) { state := s_finished }
-
-  io.finished := state === s_finished
-
-  io.cache.req.valid := state === s_cache_req
-  io.cache.req.bits.cmd := M_XWR
-  io.cache.req.bits.addr := UInt(memStart)
-  io.cache.req.bits.typ := MT_D
-  io.cache.req.bits.tag := UInt(0)
-  io.cache.req.bits.data := UInt(0)
-
-  io.mem.acquire.valid := state.isOneOf(s_write_first_req, s_write_remaining_req, s_read_req)
-  io.mem.acquire.bits := Mux(state === s_read_req,
-    GetBlock(
-      client_xact_id = UInt(0),
-      addr_block = UInt(memStartBlock)),
-    PutBlock(
-      client_xact_id = UInt(0),
-      addr_block = UInt(memStartBlock),
-      addr_beat = write_cnt,
-      data = write_cnt + UInt(1)))
-  io.mem.grant.ready := state.isOneOf(s_write_resp, s_read_resp)
-
-  assert(!io.mem.grant.valid || !io.mem.grant.bits.hasData() ||
-         io.mem.grant.bits.data === read_cnt + UInt(1),
-         "PutAfterReleaseRegression: data mismatch")
-}
-
-object RegressionTests {
-  val l1sets = 16 // TODO
-  val l1ways = 1  // TODO
-  val l2sets = 32 // TODO
-  val l2ways = 2  // TODO
-  def cacheRegressions(implicit p: Parameters) = Seq(
-    Module(new PutBlockMergeRegression(l2sets)),
-    Module(new NoAllocPutHitRegression),
-    Module(new RepeatedNoAllocPutRegression),
-    Module(new WriteMaskedPutBlockRegression),
-    Module(new PrefetchHitRegression),
-    Module(new WritebackRegression(l2sets, l2ways)),
-    Module(new PutBeforePutBlockRegression),
-    Module(new MixedAllocPutRegression),
-    Module(new ReleaseRegression(l1sets, l1ways)),
-    Module(new MergedGetRegression(l2sets, l2ways)),
-    Module(new MergedPutRegression))
-  def broadcastRegressions(implicit p: Parameters) = Seq(
-    Module(new IOGetAfterPutBlockRegression),
-    Module(new WriteMaskedPutBlockRegression),
-    Module(new PutBeforePutBlockRegression),
-    Module(new ReleaseRegression(l1sets, l1ways)),
-    Module(new PutAfterReleaseRegression))
-}
-
-case object GroundTestRegressions extends Field[Parameters => Seq[Regression]]
-
-class RegressionTest(implicit p: Parameters) extends GroundTest()(p) {
-  val regressions = p(GroundTestRegressions)(p)
-  val regress_idx = Reg(init = UInt(0, log2Up(regressions.size + 1)))
-  val cur_finished = Wire(init = Bool(false))
-  val all_done = (regress_idx === UInt(regressions.size))
-  val start = Reg(init = Bool(true))
-
-  // Some tests randomly backpressure grant; make this safe:
-  val grant = Queue(io.mem.head.grant, 16)
-
-  // default output values
-  io.mem.head.acquire.valid := Bool(false)
-  io.mem.head.acquire.bits := GetBlock(
-    client_xact_id = UInt(0),
-    addr_block = UInt(0))
-  grant.ready := Bool(false)
-  io.cache.head.req.valid := Bool(false)
-  io.cache.head.req.bits.addr := UInt(0)
-  io.cache.head.req.bits.typ := UInt(log2Ceil(64 / 8))
-  io.cache.head.req.bits.cmd := M_XRD
-  io.cache.head.req.bits.tag := UInt(0)
-  io.cache.head.req.bits.phys := Bool(true)
-  io.cache.head.req.bits.data := UInt(0)
-  io.cache.head.invalidate_lr := Bool(false)
-
-  regressions.zipWithIndex.foreach { case (regress, i) =>
-    val me = regress_idx === UInt(i)
-    regress.io.start := me && start
-    regress.io.mem.acquire.ready := io.mem.head.acquire.ready && me
-    regress.io.mem.grant.valid   := grant.valid && me
-    regress.io.mem.grant.bits    := grant.bits
-    regress.io.cache.req.ready   := io.cache.head.req.ready && me
-    regress.io.cache.resp.valid  := io.cache.head.resp.valid && me
-    regress.io.cache.resp.bits   := io.cache.head.resp.bits
-
-    when (me) {
-      io.mem.head.acquire.valid := regress.io.mem.acquire.valid
-      io.mem.head.acquire.bits := regress.io.mem.acquire.bits
-      grant.ready := regress.io.mem.grant.ready
-      io.cache.head.req.valid := regress.io.cache.req.valid
-      io.cache.head.req.bits := regress.io.cache.req.bits
-      io.cache.head.invalidate_lr := regress.io.cache.invalidate_lr
-      io.status.error.valid := regress.io.errored
-      io.status.error.bits := UInt(i)
-      cur_finished := regress.io.finished
-    }
-
-    when (regress.io.start) {
-      printf(s"Starting regression ${regress.getClass.getSimpleName}\n")
-    }
-  }
-
-  when (cur_finished && !all_done) {
-    start := Bool(true)
-    regress_idx := regress_idx + UInt(1)
-  }
-  when (start) { start := Bool(false) }
-
-  val timeout = SimpleTimer(5000, start, cur_finished)
-  assert(!timeout, "Regression timed out")
-
-  io.status.finished := all_done
-  io.status.timeout.valid := timeout
-  io.status.timeout.bits := UInt(0)
-
-  assert(!(all_done && grant.valid),
-    "Getting grant after test completion")
-
-  when (all_done) {
-    io.status.error.valid := grant.valid
-    io.status.error.bits := UInt(regressions.size)
-  }
-}

src/main/scala/groundtest/Status.scala

@@ -0,0 +1,23 @@
+// See LICENSE.SiFive for license details.
+
+package freechips.rocketchip.groundtest
+
+import Chisel._
+import freechips.rocketchip.util.ValidMux
+
+class GroundTestStatus extends Bundle {
+  val finished = Bool(OUTPUT)
+  val timeout = Valid(UInt(width = 4))
+  val error = Valid(UInt(width = 4))
+}
+
+object DebugCombiner {
+  def apply(debugs: Seq[GroundTestStatus]): GroundTestStatus = {
+    val out = Wire(new GroundTestStatus)
+    out.finished := debugs.map(_.finished).reduce(_ && _)
+    out.timeout  := ValidMux(debugs.map(_.timeout))
+    out.error    := ValidMux(debugs.map(_.error))
+    out
+  }
+}
+

src/main/scala/groundtest/TestHarness.scala

@@ -1,12 +1,11 @@
 // See LICENSE.SiFive for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
 import Chisel._
-import diplomacy._
+
-import config._
+import freechips.rocketchip.config.Parameters
-import rocketchip._
+import freechips.rocketchip.diplomacy.LazyModule
-import util._
 
 class TestHarness(implicit p: Parameters) extends Module {
   val io = new Bundle { val success = Bool(OUTPUT) }

src/main/scala/groundtest/Tile.scala

@@ -1,123 +1,51 @@
 // See LICENSE.SiFive for license details.
 // See LICENSE.Berkeley for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
 import Chisel._
-import config._
+import freechips.rocketchip.config._
-import coreplex._
+import freechips.rocketchip.coreplex._
-import rocket._
+import freechips.rocketchip.diplomacy._
-import tile._
+import freechips.rocketchip.rocket._
-import uncore.tilelink._
+import freechips.rocketchip.chip._
-import uncore.tilelink2._
+import freechips.rocketchip.tile._
-import rocketchip.ExtMem
+import freechips.rocketchip.tilelink._
-import diplomacy._
-import util.ParameterizedBundle
-
 import scala.collection.mutable.ListBuffer
 
-case object BuildGroundTest extends Field[Parameters => GroundTest]
+trait GroundTestTileParams extends TileParams {
+  val memStart: BigInt
+  val maxRequests: Int
+  val numGens: Int
 
-case class GroundTestTileParams(
+  def build(i: Int, p: Parameters): GroundTestTile
-    uncached: Int = 0,
+  
-    ptw: Int = 0,
-    maxXacts: Int = 1,
-    dcache: Option[DCacheParams] = Some(DCacheParams())) extends TileParams {
   val icache = None
   val btb = None
   val rocc = Nil
-  val core = rocket.RocketCoreParams(nPMPs = 0) //TODO remove this
+  val core = RocketCoreParams(nPMPs = 0) //TODO remove this
   val cached = if(dcache.isDefined) 1 else 0
   val dataScratchpadBytes = 0
 }
-case object GroundTestKey extends Field[Seq[GroundTestTileParams]]
 
-trait HasGroundTestConstants {
+case object GroundTestTilesKey extends Field[Seq[GroundTestTileParams]]
-  val timeoutCodeBits = 4
+
-  val errorCodeBits = 4
+abstract class GroundTestTile(params: GroundTestTileParams)(implicit p: Parameters) extends BaseTile(params)(p) {
+  val slave = None
+  val dcacheOpt = params.dcache.map { dc => HellaCache(0, dc.nMSHRs == 0) }
+  dcacheOpt.foreach { tileBus.node := _.node }
+
+  override lazy val module = new GroundTestTileModule(this, () => new GroundTestTileBundle(this))
 }
 
-trait HasGroundTestParameters {
+class GroundTestTileBundle[+L <: GroundTestTile](_outer: L) extends BaseTileBundle(_outer) {
-  implicit val p: Parameters
-  val tileParams = p(GroundTestKey)(p(TileId))
-  val nUncached = tileParams.uncached
-  val nCached = tileParams.cached
-  val nPTW = tileParams.ptw
-  val memStart = p(ExtMem).base
-  val memStartBlock = memStart >> p(CacheBlockOffsetBits)
-}
-
-class GroundTestStatus extends Bundle with HasGroundTestConstants {
-  val finished = Bool(OUTPUT)
-  val timeout = Valid(UInt(width = timeoutCodeBits))
-  val error = Valid(UInt(width = errorCodeBits))
-}
-
-class GroundTestIO(implicit val p: Parameters) extends ParameterizedBundle()(p)
-    with HasGroundTestParameters {
-  val cache = Vec(nCached, new HellaCacheIO)
-  val mem = Vec(nUncached, new ClientUncachedTileLinkIO)
-  val ptw = Vec(nPTW, new TLBPTWIO)
   val status = new GroundTestStatus
 }
 
-abstract class GroundTest(implicit val p: Parameters) extends Module
+class GroundTestTileModule[+L <: GroundTestTile, +B <: GroundTestTileBundle[L]](_outer: L, _io: () => B) extends BaseTileModule(_outer, _io) {
-    with HasGroundTestParameters {
-  val io = new GroundTestIO
-}
 
-class GroundTestTile(implicit p: Parameters) extends LazyModule
+  outer.dcacheOpt foreach { dcache =>
-    with HasGroundTestParameters {
+    val ptw = Module(new DummyPTW(1))
-  val slave = None
+    ptw.io.requestors.head <> dcache.module.io.ptw
-  val dcacheOpt = tileParams.dcache.map { dc => HellaCache(0, dc.nMSHRs == 0) }
-  val ucLegacy = LazyModule(new TLLegacy)
-
-   val masterNode = TLOutputNode()
-   dcacheOpt.foreach { masterNode := _.node }
-   masterNode := TLHintHandler()(ucLegacy.node)
-
-  lazy val module = new LazyModuleImp(this) {
-    val io = new Bundle {
-      val out = masterNode.bundleOut
-      val success = Bool(OUTPUT)
-    }
-
-    val test = p(BuildGroundTest)(p)
-
-    val ptwPorts = ListBuffer.empty ++= test.io.ptw
-    val uncachedArbPorts = ListBuffer.empty ++= test.io.mem
-
-    dcacheOpt foreach { dcache =>
-      val dcacheArb = Module(new HellaCacheArbiter(nCached))
-
-      dcacheArb.io.requestor.zip(test.io.cache).foreach {
-        case (requestor, cache) =>
-          val dcacheIF = Module(new SimpleHellaCacheIF())
-          dcacheIF.io.requestor <> cache
-          requestor <> dcacheIF.io.cache
-      }
-      dcache.module.io.cpu <> dcacheArb.io.mem
-
-      // SimpleHellaCacheIF leaves invalidate_lr dangling, so we wire it to false
-      dcache.module.io.cpu.invalidate_lr := Bool(false)
-
-      ptwPorts += dcache.module.io.ptw
-    }
-
-    if (ptwPorts.size > 0) {
-      val ptw = Module(new DummyPTW(ptwPorts.size))
-      ptw.io.requestors <> ptwPorts
-    }
-
-    if (uncachedArbPorts.isEmpty) {
-      ucLegacy.module.io.legacy.acquire.valid := Bool(false)
-      ucLegacy.module.io.legacy.grant.ready := Bool(true)
-    } else {
-      val uncachedArb = Module(new ClientUncachedTileLinkIOArbiter(uncachedArbPorts.size))
-      uncachedArb.io.in <> uncachedArbPorts
-      ucLegacy.module.io.legacy <> uncachedArb.io.out
-    }
-
-    io.success := test.io.status.finished
   }
 }

src/main/scala/groundtest/Top.scala

@@ -1,11 +1,12 @@
 // See LICENSE.SiFive for license details.
 
-package groundtest
+package freechips.rocketchip.groundtest
 
 import Chisel._
-import config.Parameters
+
-import diplomacy.LazyModule
+import freechips.rocketchip.config.Parameters
-import rocketchip._
+import freechips.rocketchip.diplomacy.LazyModule
+import freechips.rocketchip.chip._
 
 class GroundTestTop(implicit p: Parameters) extends BaseSystem
     with HasPeripheryMasterAXI4MemPort

src/main/scala/groundtest/TraceGen.scala

@@ -17,17 +17,14 @@
 // Mainstream Systems (REMS) project, funded by EPSRC grant
 // EP/K008528/1.
 
-package groundtest
+package freechips.rocketchip.groundtest
  
 import Chisel._
-import uncore.tilelink._
+import freechips.rocketchip.config.{Field, Parameters}
-import uncore.constants._
+import freechips.rocketchip.rocket._
-import coreplex.NTiles
+import freechips.rocketchip.tile._
-import rocket._
+import freechips.rocketchip.util._
-import tile._
-import util.{Timer, DynamicTimer}
 import scala.util.Random
-import config._
 
 // =======
 // Outline
@@ -59,19 +56,29 @@ import config._
 //     (This is a way to generate a wider range of addresses without having
 //     to repeatedly recompile with a different address bag.)
 
-case object AddressBag extends Field[List[BigInt]]
+case class TraceGenParams(
+    dcache: Option[DCacheParams] = Some(DCacheParams()),
+    wordBits: Int, // p(XLen) 
+    addrBits: Int, // p(PAddrBits)
+    addrBag: List[BigInt], // p(AddressBag)
+    maxRequests: Int,
+    memStart: BigInt, //p(ExtMem).base
+    numGens: Int) extends GroundTestTileParams {
+  def build(i: Int, p: Parameters): GroundTestTile = new TraceGenTile(i, this)(p)
+}
 
 trait HasTraceGenParams {
   implicit val p: Parameters
-  val pAddrBits           = p(PAddrBits)
+  val params: TraceGenParams
-  val numGens             = p(NTiles)
+  val pAddrBits           = params.addrBits
-  val numBitsInId         = log2Up(numGens)
+  val numGens             = params.numGens
-  val numReqsPerGen       = p(GeneratorKey).maxRequests
+  val numReqsPerGen       = params.maxRequests
+  val memStart            = params.memStart
   val memRespTimeout      = 8192
-  val numBitsInWord       = p(XLen)
+  val numBitsInWord       = params.wordBits
   val numBytesInWord      = numBitsInWord / 8
   val numBitsInWordOffset = log2Up(numBytesInWord)
-  val addressBag          = p(AddressBag)
+  val addressBag          = params.addrBag
   val addressBagLen       = addressBag.length
   val logAddressBagLen    = log2Up(addressBagLen)
   val genExtraAddrs       = false
@@ -179,14 +186,13 @@ class TagMan(val logNumTags : Int) extends Module {
 // Trace generator
 // ===============
 
-class TraceGenerator(id: Int)
+class TraceGenerator(val params: TraceGenParams)(implicit val p: Parameters) extends Module
-    (implicit val p: Parameters) extends Module
+    with HasTraceGenParams {
-                                with HasTraceGenParams
-                                with HasGroundTestParameters {
   val io = new Bundle {
     val finished = Bool(OUTPUT)
     val timeout = Bool(OUTPUT)
     val mem = new HellaCacheIO
+    val hartid = UInt(INPUT, log2Up(numGens))
   }
 
   val totalNumAddrs = addressBag.size + numExtraAddrs
@@ -199,8 +205,6 @@ class TraceGenerator(id: Int)
   reqTimer.io.stop.valid := io.mem.resp.valid
   reqTimer.io.stop.bits := io.mem.resp.bits.tag
 
-  assert(!reqTimer.io.timeout.valid, s"TraceGen core ${id}: request timed out")
-
   // Random addresses
   // ----------------
   
@@ -327,7 +331,7 @@ class TraceGenerator(id: Int)
   // ------------------
 
   // Hardware thread id
-  val tid = UInt(id, numBitsInId)
+  val tid = io.hartid
 
   // Request & response count
   val reqCount  = Reg(init = UInt(0, 32))
@@ -345,7 +349,7 @@ class TraceGenerator(id: Int)
   sendFreshReq := Bool(false)
 
   // Used to generate unique data values
-  val nextData = Reg(init = UInt(1, numBitsInWord-numBitsInId))
+  val nextData = Reg(init = UInt(1, numBitsInWord-tid.getWidth))
 
   // Registers for all the interesting parts of a request
   val reqValid = Reg(init = Bool(false))
@@ -503,6 +507,7 @@ class TraceGenerator(id: Int)
   io.mem.req.bits.typ  := UInt(log2Ceil(numBytesInWord))
   io.mem.req.bits.cmd  := reqCmd
   io.mem.req.bits.tag  := reqTag
+  io.mem.invalidate_lr := Bool(false)
 
   // On cycle when request is actually sent, print it
   when (io.mem.req.fire()) {
@@ -569,17 +574,25 @@ class TraceGenerator(id: Int)
 // Trace-generator wrapper
 // =======================
 
-class GroundTestTraceGenerator(implicit p: Parameters)
+class TraceGenTile(val id: Int, val params: TraceGenParams)(implicit p: Parameters) extends GroundTestTile(params) {
-    extends GroundTest()(p) with HasTraceGenParams {
+  override lazy val module = new TraceGenTileModule(this)
+}
 
-  require(io.mem.size <= 1)
+class TraceGenTileModule(outer: TraceGenTile) extends GroundTestTileModule(outer, () => new GroundTestTileBundle(outer)) {
-  require(io.cache.size == 1)
 
-  val traceGen = Module(new TraceGenerator(p(TileId)))
+  val tracegen = Module(new TraceGenerator(outer.params))
-  io.cache.head <> traceGen.io.mem
+  tracegen.io.hartid := io.hartid
 
-  io.status.finished := traceGen.io.finished
+  outer.dcacheOpt foreach { dcache =>
-  io.status.timeout.valid := traceGen.io.timeout
+    val dcacheIF = Module(new SimpleHellaCacheIF())
+    dcacheIF.io.requestor <> tracegen.io.mem
+    dcache.module.io.cpu <> dcacheIF.io.cache
+  }
+
+  io.status.finished := tracegen.io.finished
+  io.status.timeout.valid := tracegen.io.timeout
   io.status.timeout.bits := UInt(0)
   io.status.error.valid := Bool(false)
+
+  assert(!tracegen.io.timeout, s"TraceGen tile ${outer.id}: request timed out")
 }

src/main/scala/groundtest/TrafficGenerator.scala

@@ -1,216 +0,0 @@
-// See LICENSE.Berkeley for license details.
-// See LICENSE.SiFive for license details.
-
-package groundtest
-
-import Chisel._
-import uncore.tilelink._
-import coreplex.NTiles
-import uncore.constants._
-import junctions._
-import rocket._
-import util.SimpleTimer
-import scala.util.Random
-import config._
-
-case class TrafficGeneratorParameters(
-  maxRequests: Int,
-  startAddress: BigInt)
-case object GeneratorKey extends Field[TrafficGeneratorParameters]
-
-trait HasTrafficGeneratorParameters extends HasGroundTestParameters {
-  implicit val p: Parameters
-
-  val genParams = p(GeneratorKey)
-  val nGens = p(GroundTestKey).map(
-    cs => cs.uncached + cs.cached).reduce(_ + _)
-  val genTimeout = 8192
-  val maxRequests = genParams.maxRequests
-  val startAddress = genParams.startAddress
-
-  val genWordBits = 32
-  val genWordBytes = genWordBits / 8
-  val wordOffset = log2Ceil(genWordBytes)
-  val wordSize = UInt(log2Ceil(genWordBytes))
-
-  require(startAddress % BigInt(genWordBytes) == 0)
-}
-
-class UncachedTileLinkGenerator(id: Int)
-    (implicit p: Parameters) extends TLModule()(p) with HasTrafficGeneratorParameters {
-
-  private val tlBlockOffset = tlBeatAddrBits + tlByteAddrBits
-
-  val io = new Bundle {
-    val mem = new ClientUncachedTileLinkIO
-    val status = new GroundTestStatus
-  }
-
-  val (s_start :: s_put :: s_get :: s_finished :: Nil) = Enum(Bits(), 4)
-  val state = Reg(init = s_start)
-
-  val (req_cnt, req_wrap) = Counter(io.mem.grant.fire(), maxRequests)
-
-  val sending = Reg(init = Bool(false))
-
-  when (state === s_start) {
-    sending := Bool(true)
-    state := s_put
-  }
-
-  when (io.mem.acquire.fire()) { sending := Bool(false) }
-  when (io.mem.grant.fire()) { sending := Bool(true) }
-  when (req_wrap) { state := Mux(state === s_put, s_get, s_finished) }
-
-  val timeout = SimpleTimer(genTimeout, io.mem.acquire.fire(), io.mem.grant.fire())
-  assert(!timeout, s"Uncached generator ${id} timed out waiting for grant")
-
-  io.status.finished := (state === s_finished)
-  io.status.timeout.valid := timeout
-  io.status.timeout.bits := UInt(id)
-
-  val part_of_full_addr =
-    if (log2Ceil(nGens) > 0) {
-      Cat(UInt(id, log2Ceil(nGens)),
-          UInt(0, wordOffset))
-    } else {
-      UInt(0, wordOffset)
-    }
-  val full_addr = UInt(startAddress) + Cat(req_cnt, part_of_full_addr)
-
-  val addr_block = full_addr >> UInt(tlBlockOffset)
-  val addr_beat = full_addr(tlBlockOffset - 1, tlByteAddrBits)
-  val addr_byte = full_addr(tlByteAddrBits - 1, 0)
-
-  val data_prefix = Cat(UInt(id, log2Up(nGens)), req_cnt)
-  val word_data = Wire(UInt(width = genWordBits))
-  word_data := Cat(data_prefix, part_of_full_addr)
-  val beat_data = Fill(tlDataBits / genWordBits, word_data)
-  val wshift = Cat(beatOffset(full_addr), UInt(0, wordOffset))
-  val wmask = Fill(genWordBits / 8, Bits(1, 1)) << wshift
-
-  val put_acquire = Put(
-    client_xact_id = UInt(0),
-    addr_block = addr_block,
-    addr_beat = addr_beat,
-    data = beat_data,
-    wmask = Some(wmask),
-    alloc = Bool(false))
-
-  val get_acquire = Get(
-    client_xact_id = UInt(0),
-    addr_block = addr_block,
-    addr_beat = addr_beat,
-    addr_byte = addr_byte,
-    operand_size = wordSize,
-    alloc = Bool(false))
-
-  io.mem.acquire.valid := sending && !io.status.finished
-  io.mem.acquire.bits := Mux(state === s_put, put_acquire, get_acquire)
-  io.mem.grant.ready := !sending && !io.status.finished
-
-  def wordFromBeat(addr: UInt, dat: UInt) = {
-    val shift = Cat(beatOffset(addr), UInt(0, wordOffset + 3))
-    (dat >> shift)(genWordBits - 1, 0)
-  }
-
-  val data_mismatch = io.mem.grant.fire() && state === s_get &&
-    wordFromBeat(full_addr, io.mem.grant.bits.data) =/= word_data
-
-  io.status.error.valid := data_mismatch
-  io.status.error.bits := UInt(id)
-
-  assert(!data_mismatch,
-    s"Get received incorrect data in uncached generator ${id}")
-
-  def beatOffset(addr: UInt) = // TODO zero-width
-    if (tlByteAddrBits > wordOffset) addr(tlByteAddrBits - 1, wordOffset)
-    else UInt(0)
-}
-
-class HellaCacheGenerator(id: Int)
-    (implicit val p: Parameters) extends Module with HasTrafficGeneratorParameters {
-  val io = new Bundle {
-    val mem = new HellaCacheIO
-    val status = new GroundTestStatus
-  }
-
-  val timeout = SimpleTimer(genTimeout, io.mem.req.fire(), io.mem.resp.valid)
-  assert(!timeout, s"Cached generator ${id} timed out waiting for response")
-  io.status.timeout.valid := timeout
-  io.status.timeout.bits := UInt(id)
-
-  val (s_start :: s_write :: s_read :: s_finished :: Nil) = Enum(Bits(), 4)
-  val state = Reg(init = s_start)
-  val sending = Reg(init = Bool(false))
-
-  val (req_cnt, req_wrap) = Counter(io.mem.resp.valid, maxRequests)
-
-  val part_of_req_addr =
-    if (log2Ceil(nGens) > 0) {
-      Cat(UInt(id, log2Ceil(nGens)),
-          UInt(0, wordOffset))
-    } else {
-      UInt(0, wordOffset)
-    }
-  val req_addr = UInt(startAddress) + Cat(req_cnt, part_of_req_addr)
-  val req_data = Cat(UInt(id, log2Up(nGens)), req_cnt, part_of_req_addr)
-
-  io.mem.req.valid := sending && !io.status.finished
-  io.mem.req.bits.addr := req_addr
-  io.mem.req.bits.data := req_data
-  io.mem.req.bits.typ  := wordSize
-  io.mem.req.bits.cmd  := Mux(state === s_write, M_XWR, M_XRD)
-  io.mem.req.bits.tag  := UInt(0)
-
-  when (state === s_start) { sending := Bool(true); state := s_write }
-
-  when (io.mem.req.fire()) { sending := Bool(false) }
-  when (io.mem.resp.valid) { sending := Bool(true) }
-
-  when (req_wrap) { state := Mux(state === s_write, s_read, s_finished) }
-
-  io.status.finished := (state === s_finished)
-
-  def data_match(recv: Bits, expected: Bits): Bool = {
-    val recv_resized = Wire(Bits(width = genWordBits))
-    val exp_resized = Wire(Bits(width = genWordBits))
-
-    recv_resized := recv
-    exp_resized := expected
-    recv_resized === exp_resized
-  }
-
-  val data_mismatch = io.mem.resp.valid && io.mem.resp.bits.has_data &&
-    !data_match(io.mem.resp.bits.data, req_data)
-
-  io.status.error.valid := data_mismatch
-  io.status.error.bits := UInt(id)
-
-  assert(!data_mismatch,
-    s"Received incorrect data in cached generator ${id}")
-}
-
-class GeneratorTest(implicit p: Parameters)
-    extends GroundTest()(p) with HasTrafficGeneratorParameters {
-
-  val idStart = p(GroundTestKey).take(p(TileId))
-    .map(settings => settings.cached + settings.uncached)
-    .foldLeft(0)(_ + _)
-
-  val cached = List.tabulate(nCached) { i =>
-    val realId = idStart + i
-    Module(new HellaCacheGenerator(realId))
-  }
-
-  val uncached = List.tabulate(nUncached) { i =>
-    val realId = idStart + nCached + i
-    Module(new UncachedTileLinkGenerator(realId))
-  }
-
-  io.cache <> cached.map(_.io.mem)
-  io.mem <> uncached.map(_.io.mem)
-
-  val gen_debug = cached.map(_.io.status) ++ uncached.map(_.io.status)
-  io.status := DebugCombiner(gen_debug)
-}

src/main/scala/groundtest/Util.scala

@@ -1,168 +0,0 @@
-// See LICENSE.SiFive for license details.
-// See LICENSE.Berkeley for license details.
-
-package groundtest
-
-import Chisel._
-
-// ============
-// LCG16 module
-// ============
-
-// A 16-bit psuedo-random generator based on a linear conguential
-// generator (LCG).  The state is stored in an unitialised register.
-// When using the C++ backend, it is straigtforward to arrange a
-// random initial value for each uninitialised register, effectively
-// seeding each LCG16 instance with a different seed.
-
-class LCG16 extends Module { 
-  val io = new Bundle { 
-    val out = UInt(OUTPUT, 16) 
-    val inc = Bool(INPUT)
-  } 
-  val state = Reg(UInt(width = 32))
-  when (io.inc) {
-    state := state * UInt(1103515245, 32) + UInt(12345, 32)
-  }
-  io.out := state(30, 15)
-} 
- 
-// ==========
-// LCG module
-// ==========
-
-// An n-bit psuedo-random generator made from many instances of a
-// 16-bit LCG.  Parameter 'width' must be larger than 0.
-
-class LCG(val w: Int) extends Module {
-  val io = new Bundle { 
-    val out = UInt(OUTPUT, w) 
-    val inc = Bool(INPUT)
-  } 
-  require(w > 0)
-  val numLCG16s : Int = (w+15)/16
-  val outs = Seq.fill(numLCG16s) { LCG16(io.inc) }
-  io.out := Cat(outs)
-}
-
-object LCG16 {
-  def apply(inc: Bool = Bool(true)): UInt = {
-    val lcg = Module(new LCG16)
-    lcg.io.inc := inc
-    lcg.io.out
-  }
-}
-
-object LCG {
-  def apply(w: Int, inc: Bool = Bool(true)): UInt = {
-    val lcg = Module(new LCG(w))
-    lcg.io.inc := inc
-    lcg.io.out
-  }
-}
-
-// ======================
-// Frequency distribution
-// ======================
-
-// Given a list of (frequency, value) pairs, return a random value
-// according to the frequency distribution.  The sum of the
-// frequencies in the distribution must be a power of two.
-
-object Frequency {
-  def apply(dist : List[(Int, Bits)]) : Bits = {
-    // Distribution must be non-empty
-    require(dist.length > 0)
-
-    // Require that the frequencies sum to a power of two
-    val (freqs, vals) = dist.unzip
-    val total = freqs.sum
-    require(isPow2(total))
-
-    // First item in the distribution
-    val (firstFreq, firstVal) = dist.head
-
-    // Result wire
-    val result = Wire(Bits(width = firstVal.getWidth))
-    result := UInt(0)
-
-    // Random value
-    val randVal = LCG(log2Up(total))
-
-    // Pick return value
-    var count = firstFreq
-    var select = when (randVal < UInt(firstFreq)) { result := firstVal }
-    for (p <- dist.drop(1)) {
-      count = count + p._1
-      select = select.elsewhen(randVal < UInt(count)) { result := p._2 }
-    }
-
-    return result
-  }
-}
-
-object ValidMux {
-  def apply[T <: Data](v1: ValidIO[T], v2: ValidIO[T]*): ValidIO[T] = {
-    apply(v1 +: v2.toSeq)
-  }
-  def apply[T <: Data](valids: Seq[ValidIO[T]]): ValidIO[T] = {
-    val out = Wire(Valid(valids.head.bits))
-    out.valid := valids.map(_.valid).reduce(_ || _)
-    out.bits := MuxCase(valids.head.bits,
-      valids.map(v => (v.valid -> v.bits)))
-    out
-  }
-}
-
-object DebugCombiner {
-  def apply(debugs: Seq[GroundTestStatus]): GroundTestStatus = {
-    val out = Wire(new GroundTestStatus)
-    out.finished := debugs.map(_.finished).reduce(_ && _)
-    out.timeout  := ValidMux(debugs.map(_.timeout))
-    out.error    := ValidMux(debugs.map(_.error))
-    out
-  }
-}
-
-/**
- * Takes in data on one decoupled interface and broadcasts it to
- * N decoupled output interfaces
- */
-class Broadcaster[T <: Data](typ: T, n: Int) extends Module {
-  val io = new Bundle {
-    val in = Decoupled(typ).flip
-    val out = Vec(n, Decoupled(typ))
-  }
-
-  require (n > 0)
-
-  if (n == 1) {
-    io.out.head <> io.in
-  } else {
-    val idx = Reg(init = UInt(0, log2Up(n)))
-    val save = Reg(typ)
-
-    io.out.head.valid := idx === UInt(0) && io.in.valid
-    io.out.head.bits := io.in.bits
-    for (i <- 1 until n) {
-      io.out(i).valid := idx === UInt(i)
-      io.out(i).bits := save
-    }
-    io.in.ready := io.out.head.ready && idx === UInt(0)
-
-    when (io.in.fire()) { save := io.in.bits }
-
-    when (io.out(idx).fire()) {
-      when (idx === UInt(n - 1)) { idx := UInt(0) }
-      .otherwise { idx := idx + UInt(1) }
-    }
-  }
-}
-
-object Broadcaster {
-  def apply[T <: Data](in: DecoupledIO[T], n: Int): Vec[DecoupledIO[T]] = {
-    val split = Module(new Broadcaster(in.bits, n))
-    split.io.in <> in
-    split.io.out
-  }
-}

src/main/scala/jtag/JtagShifter.scala

@@ -1,6 +1,6 @@
 // See LICENSE.jtag for license details.
 
-package jtag
+package freechips.rocketchip.jtag
 
 import chisel3._
 import chisel3.core.DataMirror

src/main/scala/jtag/JtagStateMachine.scala

@@ -1,10 +1,10 @@
 // See LICENSE.jtag for license details.
 
-package jtag
+package freechips.rocketchip.jtag
 
-import util.{AsyncResetRegVec}
 import chisel3._
 import chisel3.util._
+import freechips.rocketchip.util.{AsyncResetRegVec}
 
 object JtagState {
   sealed abstract class State(val id: Int) {

src/main/scala/jtag/JtagTap.scala

@@ -1,6 +1,6 @@
 // See LICENSE.jtag for license details.
 
-package jtag
+package freechips.rocketchip.jtag
 
 import chisel3._
 import chisel3.util._

src/main/scala/jtag/JtagUtils.scala

@@ -1,6 +1,6 @@
 // See LICENSE.jtag for license details.
 
-package jtag
+package freechips.rocketchip.jtag
 
 import chisel3._
 import chisel3.util._

src/main/scala/jtag/Utils.scala

@@ -1,6 +1,6 @@
 // See LICENSE.jtag for license details.
 
-package jtag
+package freechips.rocketchip.jtag
 
 import chisel3._
 import chisel3.util._

src/main/scala/jtag/package.scala

@@ -1,5 +1,7 @@
 // See LICENSE.jtag for license details
 
+package freechips.rocketchip
+
 import scala.language.implicitConversions
 
 package object jtag {

src/main/scala/junctions/NastiDriver.scala

@@ -1,79 +0,0 @@
-// See LICENSE.Berkeley for license details.
-// See LICENSE.SiFive for license details.
-
-package junctions
-
-import Chisel._
-import config._
-
-class NastiDriver(dataWidth: Int, burstLen: Int, nBursts: Int)
-    (implicit p: Parameters) extends NastiModule {
-  val io = new Bundle {
-    val nasti = new NastiIO
-    val finished = Bool(OUTPUT)
-    val start = Bool(INPUT)
-  }
-
-  val dataBytes = dataWidth / 8
-  val nastiDataBytes = nastiXDataBits / 8
-
-  val (write_cnt, write_done) = Counter(io.nasti.w.fire(), burstLen)
-  val (read_cnt, read_done) = Counter(io.nasti.r.fire(), burstLen)
-  val (req_cnt, reqs_done) = Counter(read_done, nBursts)
-
-  val req_addr = Cat(req_cnt, UInt(0, log2Up(burstLen * dataBytes)))
-
-  val write_data    = UInt(0x10000000L, dataWidth) | Cat(req_cnt, write_cnt)
-  val expected_data = UInt(0x10000000L, dataWidth) | Cat(req_cnt, read_cnt)
-
-  val (s_idle :: s_write_addr :: s_write_data :: s_write_stall :: s_write_resp ::
-       s_read_addr :: s_read_data :: s_read_stall :: s_done :: Nil) = Enum(Bits(), 9)
-  val state = Reg(init = s_idle)
-
-  val (stall_cnt, stall_done) = Counter(state === s_read_stall, 2)
-
-  io.nasti.aw.valid := (state === s_write_addr)
-  io.nasti.aw.bits := NastiWriteAddressChannel(
-    id = UInt(0),
-    addr = req_addr,
-    size = UInt(log2Up(dataBytes)),
-    len = UInt(burstLen - 1))
-
-  io.nasti.w.valid := (state === s_write_data)
-  io.nasti.w.bits := NastiWriteDataChannel(
-    data = Cat(write_data, write_data),
-    last = (write_cnt === UInt(burstLen - 1)))
-
-  io.nasti.b.ready := (state === s_write_resp)
-
-  io.nasti.ar.valid := (state === s_read_addr)
-  io.nasti.ar.bits := NastiReadAddressChannel(
-    id = UInt(0),
-    addr = req_addr,
-    size = UInt(log2Up(dataBytes)),
-    len = UInt(burstLen - 1))
-
-  io.nasti.r.ready := (state === s_read_data)
-
-  io.finished := (state === s_done)
-
-  when (state === s_idle && io.start) { state := s_write_addr }
-  when (io.nasti.aw.fire()) { state := s_write_data }
-  when (io.nasti.w.fire()) { state := s_write_stall }
-  when (state === s_write_stall) { state := s_write_data }
-  when (write_done) { state := s_write_resp }
-  when (io.nasti.b.fire()) { state := s_read_addr }
-  when (io.nasti.ar.fire()) { state := s_read_data }
-  when (io.nasti.r.fire()) { state := s_read_stall }
-  when (stall_done) { state := s_read_data }
-  when (read_done) { state := s_write_addr }
-  when (reqs_done) { state := s_done }
-
-  val full_addr = req_addr + (read_cnt << UInt(log2Up(dataBytes)))
-  val byteshift = full_addr(log2Up(nastiDataBytes) - 1, 0)
-  val bitshift = Cat(byteshift, UInt(0, 3))
-  val read_data = (io.nasti.r.bits.data >> bitshift) & Fill(dataWidth, UInt(1, 1))
-
-  assert(!io.nasti.r.valid || read_data === expected_data,
-    s"NastiDriver got wrong data")
-}

src/main/scala/junctions/addrmap.scala

@@ -1,148 +0,0 @@
-// See LICENSE.SiFive for license details.
-// See LICENSE.Berkeley for license details.
-
-package junctions
-
-import Chisel._
-import config._
-import scala.collection.mutable.HashMap
-
-case class MemAttr(prot: Int, cacheable: Boolean = false)
-
-sealed abstract class MemRegion {
-  def start: BigInt
-  def size: BigInt
-  def numSlaves: Int
-  def attr: MemAttr
-
-  def containsAddress(x: UInt) = UInt(start) <= x && x < UInt(start + size)
-}
-
-case class MemSize(size: BigInt, attr: MemAttr) extends MemRegion {
-  def start = 0
-  def numSlaves = 1
-}
-
-case class MemRange(start: BigInt, size: BigInt, attr: MemAttr) extends MemRegion {
-  def numSlaves = 1
-}
-
-object AddrMapProt {
-  val R = 0x1
-  val W = 0x2
-  val X = 0x4
-  val RW = R | W
-  val RX = R | X
-  val RWX = R | W | X
-  val SZ = 3
-}
-
-class AddrMapProt extends Bundle {
-  val x = Bool()
-  val w = Bool()
-  val r = Bool()
-}
-
-case class AddrMapEntry(name: String, region: MemRegion)
-
-object AddrMap {
-  def apply(elems: AddrMapEntry*): AddrMap = new AddrMap(elems)
-}
-
-class AddrMap(
-    entriesIn: Seq[AddrMapEntry],
-    val start: BigInt = BigInt(0),
-    val collapse: Boolean = false) extends MemRegion {
-  private val slavePorts = HashMap[String, Int]()
-  private val mapping = HashMap[String, MemRegion]()
-
-  def isEmpty = entries.isEmpty
-  def length = entries.size
-  def numSlaves = slavePorts.size
-
-  val (size: BigInt, entries: Seq[AddrMapEntry], attr: MemAttr) = {
-    var ind = 0
-    var base = start
-    var rebasedEntries = collection.mutable.ArrayBuffer[AddrMapEntry]()
-    var prot = 0
-    var cacheable = true
-    for (AddrMapEntry(name, r) <- entriesIn) {
-      require (!mapping.contains(name))
-      base = r.start
-
-      r match {
-        case r: AddrMap =>
-          val subMap = new AddrMap(r.entries, base, r.collapse)
-          rebasedEntries += AddrMapEntry(name, subMap)
-          mapping += name -> subMap
-          mapping ++= subMap.mapping.map { case (k, v) => s"$name:$k" -> v }
-          if (r.collapse) {
-            slavePorts += (name -> ind)
-            ind += 1
-          } else {
-            slavePorts ++= subMap.slavePorts.map {
-              case (k, v) => s"$name:$k" -> (ind + v)
-            }
-            ind += r.numSlaves
-          }
-        case _ =>
-          val e = MemRange(base, r.size, r.attr)
-          rebasedEntries += AddrMapEntry(name, e)
-          mapping += name -> e
-          slavePorts += name -> ind
-          ind += r.numSlaves
-      }
-
-      base += r.size
-      prot |= r.attr.prot
-      cacheable &&= r.attr.cacheable
-    }
-    (base - start, rebasedEntries, MemAttr(prot, cacheable))
-  }
-
-  val flatten: Seq[AddrMapEntry] = {
-    mapping.toSeq.map {
-      case (name, range: MemRange) => Some(AddrMapEntry(name, range))
-      case _ => None
-    }.flatten.sortBy(_.region.start)
-  }
-
-  // checks to see whether any MemRange overlaps within this AddrMap
-  flatten.combinations(2) foreach {
-    case (Seq(AddrMapEntry(an, ar), AddrMapEntry(bn, br))) =>
-      val arEnd = ar.start + ar.size
-      val brEnd = br.start + br.size
-      val abOverlaps = ar.start < brEnd && br.start < arEnd
-      require(!abOverlaps,
-        s"region $an@0x${ar.start.toString(16)} overlaps region $bn@0x${br.start.toString(16)}")
-  }
-
-  def toRange: MemRange = MemRange(start, size, attr)
-  def apply(name: String): MemRegion = mapping(name)
-  def contains(name: String): Boolean = mapping.contains(name)
-  def port(name: String): Int = slavePorts(name)
-  def subMap(name: String): AddrMap = mapping(name).asInstanceOf[AddrMap]
-  def isInRegion(name: String, addr: UInt): Bool = mapping(name).containsAddress(addr)
-
-  def isCacheable(addr: UInt): Bool = {
-    flatten.filter(_.region.attr.cacheable).map(
-      _.region.containsAddress(addr)
-    ).foldLeft(Bool(false))(_ || _)
-  }
-
-  def isValid(addr: UInt): Bool = {
-    flatten.map(_.region.containsAddress(addr)).foldLeft(Bool(false))(_ || _)
-  }
-
-  def getProt(addr: UInt): AddrMapProt = {
-    val protForRegion = flatten.map { entry =>
-      Mux(entry.region.containsAddress(addr),
-        UInt(entry.region.attr.prot, AddrMapProt.SZ), UInt(0))
-    }
-    new AddrMapProt().fromBits(protForRegion.reduce(_|_))
-  }
-
-  override def containsAddress(x: UInt) = {
-    flatten.map(_.region.containsAddress(x)).reduce(_||_)
-  }
-}

src/main/scala/junctions/hasti.scala

@@ -1,565 +0,0 @@
-// See LICENSE.SiFive for license details.
-// See LICENSE.Berkeley for license details.
-
-package junctions
-
-import Chisel._
-import config._
-import unittest.UnitTest
-import util._
-
-object HastiConstants
-{
-  // Values for htrans
-  val SZ_HTRANS     = 2
-  def HTRANS_IDLE   = UInt(0, SZ_HTRANS) // No transfer requested, not in a burst
-  def HTRANS_BUSY   = UInt(1, SZ_HTRANS) // No transfer requested, in a burst
-  def HTRANS_NONSEQ = UInt(2, SZ_HTRANS) // First (potentially only) request in a burst
-  def HTRANS_SEQ    = UInt(3, SZ_HTRANS) // Following requests in a burst
-
-  // Values for hburst
-  val SZ_HBURST     = 3
-  def HBURST_SINGLE = UInt(0, SZ_HBURST) // Single access (no burst)
-  def HBURST_INCR   = UInt(1, SZ_HBURST) // Incrementing burst of arbitrary length, not crossing 1KB
-  def HBURST_WRAP4  = UInt(2, SZ_HBURST) // 4-beat wrapping burst
-  def HBURST_INCR4  = UInt(3, SZ_HBURST) // 4-beat incrementing burst
-  def HBURST_WRAP8  = UInt(4, SZ_HBURST) // 8-beat wrapping burst
-  def HBURST_INCR8  = UInt(5, SZ_HBURST) // 8-beat incrementing burst
-  def HBURST_WRAP16 = UInt(6, SZ_HBURST) // 16-beat wrapping burst
-  def HBURST_INCR16 = UInt(7, SZ_HBURST) // 16-beat incrementing burst
-
-  // Values for hresp
-  val SZ_HRESP      = 1
-  def HRESP_OKAY    = UInt(0, SZ_HRESP)
-  def HRESP_ERROR   = UInt(1, SZ_HRESP)
-
-  // Values for hsize are identical to TileLink MT_SZ
-  // ie: 8*2^SZ_HSIZE bit transfers
-  val SZ_HSIZE = 3
-  
-  // Values for hprot (a bitmask)
-  val SZ_HPROT = 4
-  def HPROT_DATA       = UInt("b0001") // Data access or Opcode fetch
-  def HPROT_PRIVILEGED = UInt("b0010") // Privileged or User access
-  def HPROT_BUFFERABLE = UInt("b0100") // Bufferable or non-bufferable
-  def HPROT_CACHEABLE  = UInt("b1000") // Cacheable or non-cacheable
-
-  def dgate(valid: Bool, b: UInt) = Fill(b.getWidth, valid) & b
-}
-
-import HastiConstants._
-
-case class HastiParameters(dataBits: Int, addrBits: Int)
-case object HastiId extends Field[String]
-case class HastiKey(id: String) extends Field[HastiParameters]
-
-trait HasHastiParameters {
-  implicit val p: Parameters
-  val hastiParams = p(HastiKey(p(HastiId)))
-  val hastiAddrBits = hastiParams.addrBits
-  val hastiDataBits = hastiParams.dataBits
-  val hastiDataBytes = hastiDataBits/8
-  val hastiAlignment = log2Ceil(hastiDataBytes)
-}
-
-abstract class HastiModule(implicit val p: Parameters) extends Module
-  with HasHastiParameters
-abstract class HastiBundle(implicit val p: Parameters) extends ParameterizedBundle()(p)
-  with HasHastiParameters
-
-class HastiMasterIO(implicit p: Parameters) extends HastiBundle()(p) {
-  val htrans    = UInt(OUTPUT, SZ_HTRANS)
-  val hmastlock = Bool(OUTPUT)
-  val haddr     = UInt(OUTPUT, hastiAddrBits)
-  val hwrite    = Bool(OUTPUT)
-  val hburst    = UInt(OUTPUT, SZ_HBURST)
-  val hsize     = UInt(OUTPUT, SZ_HSIZE)
-  val hprot     = UInt(OUTPUT, SZ_HPROT)
-
-  val hwdata = Bits(OUTPUT, hastiDataBits)
-  val hrdata = Bits(INPUT,  hastiDataBits)
-
-  val hready = Bool(INPUT)
-  val hresp  = UInt(INPUT, SZ_HRESP)
-
-  def isNSeq(dummy:Int=0) = htrans === HTRANS_NONSEQ // SEQ does not start a NEW request
-  def isHold(dummy:Int=0) = htrans === HTRANS_BUSY || htrans === HTRANS_SEQ
-  def isIdle(dummy:Int=0) = htrans === HTRANS_IDLE || htrans === HTRANS_BUSY
-}
-
-class HastiSlaveIO(implicit p: Parameters) extends HastiBundle()(p) {
-  val htrans    = UInt(INPUT, SZ_HTRANS)
-  val hmastlock = Bool(INPUT)
-  val haddr     = UInt(INPUT, hastiAddrBits)
-  val hwrite    = Bool(INPUT)
-  val hburst    = UInt(INPUT, SZ_HBURST)
-  val hsize     = UInt(INPUT, SZ_HSIZE)
-  val hprot     = UInt(INPUT, SZ_HPROT)
-
-  val hwdata = Bits(INPUT,  hastiDataBits)
-  val hrdata = Bits(OUTPUT, hastiDataBits)
-
-  val hsel   = Bool(INPUT)
-  val hready = Bool(OUTPUT)
-  val hresp  = UInt(OUTPUT, SZ_HRESP)
-}
-
-/* A diverted master is told hready when his address phase goes nowhere.
- * In this case, we buffer his address phase request and replay it later.
- * NOTE: this must optimize to nothing when divert is constantly false.
- */
-class MasterDiversion(implicit p: Parameters) extends HastiModule()(p) {
-  val io = new Bundle {
-    val in     = (new HastiMasterIO).flip
-    val out    = (new HastiMasterIO)
-    val divert = Bool(INPUT)
-  }
-  
-  val full   = Reg(init = Bool(false))
-  val buffer = Reg(new HastiMasterIO)
-  
-  when (io.out.hready) {
-    full := Bool(false)
-  }
-  when (io.divert) {
-    full := Bool(true)
-    buffer := io.in
-  }
-  
-  // If the master is diverted, he must also have been told hready
-  assert (!io.divert || io.in.hready,
-    "Diverted but not ready");
-  
-  // Replay the request we diverted
-  io.out.htrans    := Mux(full, buffer.htrans,    io.in.htrans)
-  io.out.hmastlock := Mux(full, buffer.hmastlock, io.in.hmastlock)
-  io.out.haddr     := Mux(full, buffer.haddr,     io.in.haddr)
-  io.out.hwrite    := Mux(full, buffer.hwrite,    io.in.hwrite)
-  io.out.hburst    := Mux(full, buffer.hburst,    io.in.hburst)
-  io.out.hsize     := Mux(full, buffer.hsize,     io.in.hsize)
-  io.out.hprot     := Mux(full, buffer.hprot,     io.in.hprot)
-  io.out.hwdata    := Mux(full, buffer.hwdata,    io.in.hwdata)
-  
-  // Pass slave response back
-  io.in.hrdata := io.out.hrdata
-  io.in.hresp  := io.out.hresp
-  io.in.hready := io.out.hready && !full // Block master while we steal his address phase
-}
-
-/* Masters with lower index have priority over higher index masters.
- * However, a lower priority master will retain control of a slave when EITHER:
- *   1. a burst is in progress (switching slaves mid-burst violates AHB-lite at slave)
- *   2. a transfer was waited (the standard forbids changing requests in this case)
- *
- * If a master raises hmastlock, it will be waited until no other master has inflight
- * requests; then, it acquires exclusive control of the crossbar until hmastlock is low.
- *
- * To implement an AHB-lite crossbar, it is important to realize that requests and
- * responses are coupled. Unlike modern bus protocols where the response data has flow
- * control independent of the request data, in AHB-lite, both flow at the same time at
- * the sole discretion of the slave via the hready signal. The address and data are
- * delivered on two back-to-back cycles, the so-called address and data phases.
- *
- * Masters can only be connected to a single slave at a time. If a master had two different
- * slave connections on the address and data phases, there would be two independent hready
- * signals. An AHB-lite slave can assume that data flows when it asserts hready. If the data
- * slave deasserts hready while the address slave asserts hready, the master is put in the
- * impossible position of being in data phase on two slaves at once. For this reason, when
- * a master issues back-to-back accesses to distinct slaves, we inject a pipeline bubble
- * between the two requests to limit the master to just a single slave at a time.
- *
- * Conversely, a slave CAN have two masters attached to it. This is unproblematic, because
- * the only signal which governs data flow is hready. Thus, both masters can be stalled
- * safely by the single slave.
- */
-class HastiXbar(nMasters: Int, addressMap: Seq[UInt=>Bool])(implicit p: Parameters) extends HastiModule()(p) {
-  val io = new Bundle {
-    val masters = Vec(nMasters,        new HastiMasterIO).flip
-    val slaves  = Vec(addressMap.size, new HastiSlaveIO).flip
-  }
-  
-  val nSlaves = addressMap.size
-  
-  // Setup diversions infront of each master
-  val diversions = Seq.tabulate(nMasters) { m => Module(new MasterDiversion) }
-  (io.masters zip diversions) foreach { case (m, d) => d.io.in <> m }
-  
-  // Handy short-hand
-  val masters = diversions map (_.io.out)
-  val slaves  = io.slaves
-  
-  // Lock status of the crossbar
-  val lockedM = Reg(init = Vec.fill(nMasters)(Bool(false)))
-  val isLocked = lockedM.reduce(_ || _)
-  
-  // This matrix governs the master-slave connections in the address phase
-  // It is indexed by addressPhaseGrantSM(slave)(master)
-  // It is guaranteed to have at most one 'true' per column and per row
-  val addressPhaseGrantSM = Wire(Vec(nSlaves, Vec(nMasters, Bool())))
-  // This matrix governs the master-slave connections in the data phase
-  // It is guaranteed to have at most one 'true' per column and per row
-  val dataPhaseGrantSM    = Reg (init = Vec.fill(nSlaves)(Vec.fill(nMasters)(Bool(false))))
-  // This matrix is the union of the address and data phases.
-  // It is transposed with respect to the two previous matrices.
-  // It is guaranteed to contain at most one 'true' per master row.
-  // However, two 'true's per slave column are permitted.
-  val unionGrantMS = Vec.tabulate(nMasters) { m => Vec.tabulate(nSlaves) { s => 
-                       addressPhaseGrantSM(s)(m) || dataPhaseGrantSM(s)(m) } }
-  
-  // Confirm the guarantees made above
-  def justOnce(v: Vec[Bool]) = v.fold(Bool(false)) { case (p, v) =>
-    assert (!p || !v)
-    p || v
-  }
-  addressPhaseGrantSM foreach { s => justOnce(s) }
-  unionGrantMS        foreach { s => justOnce(s) }
-  
-  // Data phase follows address phase whenever the slave is ready
-  (slaves zip (dataPhaseGrantSM zip addressPhaseGrantSM)) foreach { case (s, (d, a)) =>
-    when (s.hready) { d := a }
-  }
-  
-  // Record the grant state from the previous cycle; needed in case we hold access
-  val priorAddressPhaseGrantSM = RegNext(addressPhaseGrantSM)
-  
-  // If a master says BUSY or SEQ, it is in the middle of a burst.
-  // In this case, it MUST stay attached to the same slave as before.
-  // Otherwise, it would violate the AHB-lite specification as seen by
-  // the slave, which is guaranteed a complete burst of the promised length.
-  // One case where this matters is preventing preemption of low-prio masters.
-  // NOTE: this exposes a slave to bad addresses when a master is buggy
-  val holdBurstM = Vec(masters map { _.isHold() })
-  
-  // Transform the burst hold requirement from master indexing to slave indexing
-  // We use the previous cycle's binding because the master continues the prior burst
-  val holdBurstS = Vec(priorAddressPhaseGrantSM map { m => Mux1H(m, holdBurstM) })
-  
-  // If a slave says !hready to a request, it must retain the same master next cycle.
-  // The AHB-lite specification requires that a waited transfer remain unchanged.
-  // If we preempted a waited master, the new master's request could potentially differ.
-  val holdBusyS = RegNext(Vec(slaves map { s => !s.hready && s.hsel }))
-  
-  // Combine the above two grounds to determine if the slave retains its prior master
-  val holdS = Vec((holdBurstS zip holdBusyS) map ({ case (a,b) => a||b }))
-  
-  // Determine which master addresses match which slaves
-  val matchMS = Vec(masters map { m => Vec(addressMap map { afn => afn(m.haddr) }) })
-  // Detect requests to nowhere; we need to allow progress in this case
-  val nowhereM = Vec(matchMS map { s => !s.reduce(_ || _) })
-  
-  // Detect if we need to inject a pipeline bubble between the master requests.
-  // Divert masters already granted a data phase different from next request.
-  // NOTE: if only one slave, matchMS is always true => bubble always false
-  //       => the diversion registers are optimized away as they are unread
-  // NOTE: bubble => dataPhase => have an hready signal
-  val bubbleM =
-    Vec.tabulate(nMasters) { m =>
-      Vec.tabulate(nSlaves) { s => dataPhaseGrantSM(s)(m) && !matchMS(m)(s) }
-      .reduce(_ || _) }
-  
-  // Block any request that requires bus ownership or conflicts with isLocked
-  val blockedM = 
-    Vec((lockedM zip masters) map { case(l, m) => !l && (isLocked || m.hmastlock) })
-  
-  // Requested access to slaves from masters (pre-arbitration)
-  // NOTE: isNSeq does NOT include SEQ; thus, masters who are midburst do not
-  // request access to a new slave. They stay tied to the old and do not get two.
-  // NOTE: if a master was waited, it must repeat the same request as last cycle;
-  // thus, it will request the same slave and not end up with two (unless buggy).
-  val NSeq = masters.map(_.isNSeq())
-  val requestSM = Vec.tabulate(nSlaves) { s => Vec.tabulate(nMasters) { m => 
-    matchMS(m)(s) && NSeq(m) && !bubbleM(m) && !blockedM(m) } }
-  
-  // Select at most one master request per slave (lowest index = highest priority)
-  val selectedRequestSM = Vec(requestSM map { m => Vec(PriorityEncoderOH(m)) })
-  
-  // Calculate new crossbar interconnect state
-  addressPhaseGrantSM := Vec((holdS zip (priorAddressPhaseGrantSM zip selectedRequestSM))
-                             map { case (h, (p, r)) => Mux(h, p, r) })
-
-  for (m <- 0 until nMasters) {
-    // If the master is connected to a slave, the slave determines hready.
-    // However, if no slave is connected, for progress report ready anyway, if:
-    //   bad address (swallow request) OR idle (permit stupid masters to move FSM)
-    val autoready = nowhereM(m) || masters(m).isIdle()
-    val hready    = if (nSlaves == 1)
-                      Mux(unionGrantMS(m)(0), slaves(0).hready ^ autoready, Bool(false)) ^ autoready
-                    else
-                      Mux1H(unionGrantMS(m), slaves.map(_.hready ^ autoready)) ^ autoready
-    masters(m).hready := hready
-    // If we diverted a master, we need to absorb his address phase to replay later
-    diversions(m).io.divert := (bubbleM(m) || blockedM(m)) && NSeq(m) && hready
-  }
-  
-  // Master muxes (address and data phase are the same)
-  (masters zip unionGrantMS) foreach { case (m, g) => {
-    m.hrdata := Mux1H(g, slaves.map(_.hrdata))
-    m.hresp  := Mux1H(g, slaves.map(_.hresp))
-  } }
-  
-  // Slave address phase muxes
-  (slaves zip addressPhaseGrantSM) foreach { case (s, g) => {
-    s.htrans    := Mux1H(g, masters.map(_.htrans))
-    s.haddr     := Mux1H(g, masters.map(_.haddr))
-    s.hmastlock := isLocked
-    s.hwrite    := Mux1H(g, masters.map(_.hwrite))
-    s.hsize     := Mux1H(g, masters.map(_.hsize))
-    s.hburst    := Mux1H(g, masters.map(_.hburst))
-    s.hprot     := Mux1H(g, masters.map(_.hprot))
-    s.hsel      := g.reduce(_ || _)
-  } }
-  
-  // Slave data phase muxes
-  (slaves zip dataPhaseGrantSM) foreach { case (s, g) => {
-    s.hwdata := Mux1H(g, masters.map(_.hwdata))
-  } }
-  
-  // When no master-slave connections are active, a master can take-over the bus
-  val canLock = !addressPhaseGrantSM.map({ v => v.reduce(_ || _) }).reduce(_ || _)
-  
-  // Lowest index highest priority for lock arbitration
-  val reqLock = masters.map(_.hmastlock)
-  val winLock = PriorityEncoderOH(reqLock)
-  
-  // Lock arbitration
-  when (isLocked) {
-    lockedM := (lockedM zip reqLock) map { case (a,b) => a && b }
-  } .elsewhen (canLock) {
-    lockedM := winLock
-  }
-}
-
-class HastiBus(amap: Seq[UInt=>Bool])(implicit p: Parameters) extends HastiModule()(p) {
-  val io = new Bundle {
-    val master = new HastiMasterIO().flip
-    val slaves = Vec(amap.size, new HastiSlaveIO).flip
-  }
-
-  val bar = Module(new HastiXbar(1, amap))
-  bar.io.masters(0) <> io.master
-  bar.io.slaves <> io.slaves
-}
-
-class HastiSlaveMux(n: Int)(implicit p: Parameters) extends HastiModule()(p) {
-  val io = new Bundle {
-    val ins = Vec(n, new HastiSlaveIO)
-    val out = new HastiSlaveIO().flip
-  }
-  
-  val amap = Seq({ (_:UInt) => Bool(true)})
-  val bar = Module(new HastiXbar(n, amap))
-  io.ins <> bar.io.masters
-  io.out <> bar.io.slaves(0)
-}
-
-class HastiSlaveToMaster(implicit p: Parameters) extends HastiModule()(p) {
-  val io = new Bundle {
-    val in  = new HastiSlaveIO
-    val out = new HastiMasterIO
-  }
-
-  io.out.htrans    := Mux(io.in.hsel, io.in.htrans, HTRANS_IDLE)
-  io.out.hmastlock := io.in.hmastlock
-  io.out.haddr     := io.in.haddr
-  io.out.hwrite    := io.in.hwrite
-  io.out.hburst    := io.in.hburst
-  io.out.hsize     := io.in.hsize
-  io.out.hprot     := io.in.hprot
-  io.out.hwdata    := io.in.hwdata
-  io.in.hrdata := io.out.hrdata
-  io.in.hready := io.out.hready
-  io.in.hresp  := io.out.hresp
-}
-
-class HastiMasterIONastiIOConverter(implicit p: Parameters) extends HastiModule()(p)
-    with HasNastiParameters {
-  val io = new Bundle {
-    val nasti = new NastiIO().flip
-    val hasti = new HastiMasterIO
-  }
-
-  require(hastiAddrBits == nastiXAddrBits)
-  require(hastiDataBits == nastiXDataBits)
-
-  val r_queue = Module(new Queue(new NastiReadDataChannel, 2, pipe = true))
-
-  val s_idle :: s_read :: s_write :: s_write_resp :: Nil = Enum(Bits(), 4)
-  val state = Reg(init = s_idle)
-
-  val addr = Reg(UInt(width = hastiAddrBits))
-  val id = Reg(UInt(width = nastiXIdBits))
-  val size = Reg(UInt(width = nastiXSizeBits))
-  val len = Reg(UInt(width = nastiXLenBits))
-  val data = Reg(UInt(width = nastiXDataBits))
-  val first = Reg(init = Bool(false))
-  val is_rtrans = (state === s_read) &&
-                  (io.hasti.htrans === HTRANS_SEQ ||
-                   io.hasti.htrans === HTRANS_NONSEQ)
-  val rvalid = RegEnable(is_rtrans, Bool(false), io.hasti.hready)
-
-  io.nasti.aw.ready := (state === s_idle)
-  io.nasti.ar.ready := (state === s_idle) && !io.nasti.aw.valid
-  io.nasti.w.ready := (state === s_write) && io.hasti.hready
-  io.nasti.b.valid := (state === s_write_resp)
-  io.nasti.b.bits := NastiWriteResponseChannel(id = id)
-  io.nasti.r <> r_queue.io.deq
-
-  r_queue.io.enq.valid := io.hasti.hready && rvalid
-  r_queue.io.enq.bits := NastiReadDataChannel(
-    id = id,
-    data = io.hasti.hrdata,
-    last = (len === UInt(0)))
-
-  assert(!r_queue.io.enq.valid || r_queue.io.enq.ready,
-    "NASTI -> HASTI converter queue overflow")
-
-  // How many read requests have we not delivered a response for yet?
-  val pending_count = r_queue.io.count + rvalid
-
-  io.hasti.haddr := addr
-  io.hasti.hsize := size
-  io.hasti.hwrite := (state === s_write)
-  io.hasti.hburst := HBURST_INCR
-  io.hasti.hprot := UInt(0)
-  io.hasti.hwdata := data
-  io.hasti.hmastlock := Bool(false)
-  io.hasti.htrans := MuxLookup(state, HTRANS_IDLE, Seq(
-    s_write -> Mux(io.nasti.w.valid,
-      Mux(first, HTRANS_NONSEQ, HTRANS_SEQ),
-      Mux(first, HTRANS_IDLE, HTRANS_BUSY)),
-    s_read -> MuxCase(HTRANS_BUSY, Seq(
-      first -> HTRANS_NONSEQ,
-      (pending_count <= UInt(1)) -> HTRANS_SEQ))))
-
-  when (io.nasti.aw.fire()) {
-    first := Bool(true)
-    addr := io.nasti.aw.bits.addr
-    id := io.nasti.aw.bits.id
-    size := io.nasti.aw.bits.size
-    state := s_write
-  }
-
-  when (io.nasti.ar.fire()) {
-    first := Bool(true)
-    addr := io.nasti.ar.bits.addr
-    id := io.nasti.ar.bits.id
-    size := io.nasti.ar.bits.size
-    len := io.nasti.ar.bits.len
-    state := s_read
-  }
-
-  when (io.nasti.w.fire()) {
-    first := Bool(false)
-    addr := addr + (UInt(1) << size)
-    data := io.nasti.w.bits.data
-    when (io.nasti.w.bits.last) { state := s_write_resp }
-  }
-
-  when (io.nasti.b.fire()) { state := s_idle }
-
-  when (is_rtrans && io.hasti.hready) {
-    first := Bool(false)
-    addr := addr + (UInt(1) << size)
-    len := len - UInt(1)
-    when (len === UInt(0)) { state := s_idle }
-  }
-}
-
-class HastiTestSRAM(depth: Int)(implicit p: Parameters) extends HastiModule()(p) {
-  val io = new HastiSlaveIO
-  
-  // This is a test SRAM with random delays
-  val ready = LFSR16(Bool(true))(0) // Bool(true)
-  
-  // Calculate the bitmask of which bytes are being accessed
-  val mask_decode = Vec.tabulate(hastiAlignment+1) (UInt(_) <= io.hsize)
-  val mask_wide   = Vec.tabulate(hastiDataBytes) { i => mask_decode(log2Ceil(i+1)) }
-  val mask_shift  = if (hastiAlignment == 0) UInt(1) else
-                    mask_wide.asUInt() << io.haddr(hastiAlignment-1,0)
-  
-  // The request had better have been aligned! (AHB-lite requires this)
-  if (hastiAlignment >= 1) {
-    assert (io.htrans === HTRANS_IDLE || io.htrans === HTRANS_BUSY ||
-      (io.haddr & mask_decode.asUInt()(hastiAlignment,1)) === UInt(0),
-      "HASTI request not aligned")
-  }
-  
-  // The mask and address during the address phase
-  val a_request   = io.hsel && (io.htrans === HTRANS_NONSEQ || io.htrans === HTRANS_SEQ)
-  val a_mask      = Wire(UInt(width = hastiDataBytes))
-  val a_address   = io.haddr(depth-1, hastiAlignment)
-  val a_write     = io.hwrite
-
-  // for backwards compatibility with chisel2, we needed a static width in definition
-  a_mask := mask_shift(hastiDataBytes-1, 0)
-  
-  // The data phase signals
-  val d_read  = RegEnable(a_request && !a_write, Bool(false), ready)
-  val d_mask  = RegEnable(a_mask, ready && a_request)
-  val d_wdata = Vec.tabulate(hastiDataBytes) { i => io.hwdata(8*(i+1)-1, 8*i) }
-  
-  // AHB writes must occur during the data phase; this poses a structural
-  // hazard with reads which must occur during the address phase. To solve
-  // this problem, we delay the writes until there is a free cycle.
-  //
-  // The idea is to record the address information from address phase and
-  // then as soon as possible flush the pending write. This cannot be done
-  // on a cycle when there is an address phase read, but on any other cycle
-  // the write will execute. In the case of reads following a write, the
-  // result must bypass data from the pending write into the read if they
-  // happen to have matching address.
-  
-  // Pending write?
-  val p_valid     = RegInit(Bool(false))
-  val p_address   = Reg(a_address)
-  val p_mask      = Reg(a_mask)
-  val p_latch_d   = RegNext(ready && a_request && a_write, Bool(false))
-  val p_wdata     = d_wdata holdUnless p_latch_d
-  
-  // Use single-ported memory with byte-write enable
-  val mem = SeqMem(1 << (depth-hastiAlignment), Vec(hastiDataBytes, Bits(width = 8)))
-  
-  // Decide is the SRAM port is used for reading or (potentially) writing
-  val read = ready && a_request && !a_write
-  // In case we are stalled, we need to hold the read data
-  val d_rdata = mem.readAndHold(a_address, read)
-  // Whenever the port is not needed for reading, execute pending writes
-  when (!read && p_valid) { mem.write(p_address, p_wdata, p_mask.toBools) }
-  when (!read) { p_valid := Bool(false) }
-  
-  // Record the request for later?
-  when (ready && a_request && a_write) {
-    p_valid   := Bool(true)
-    p_address := a_address
-    p_mask    := a_mask
-  }
-  
-  // Does the read need to be muxed with the previous write?
-  val a_bypass = a_address === p_address && p_valid
-  val d_bypass = RegEnable(a_bypass, ready && a_request)
-  
-  // Mux in data from the pending write
-  val muxdata = Vec((p_mask.toBools zip (p_wdata zip d_rdata))
-                    map { case (m, (p, r)) => Mux(d_bypass && m, p, r) })
-  // Wipe out any data the master should not see (for testing)
-  val outdata = Vec((d_mask.toBools zip muxdata)
-                    map { case (m, p) => Mux(d_read && ready && m, p, Bits(0)) })
-
-  // Finally, the outputs
-  io.hrdata := outdata.asUInt
-  io.hready := ready
-  io.hresp  := HRESP_OKAY
-}
-
-class HastiTest(implicit p: Parameters) extends UnitTest {
-  val sram = Module(new HastiTestSRAM(8))
-  val bus = Module(new HastiBus(Seq(a => Bool(true))))
-  val conv = Module(new HastiMasterIONastiIOConverter)
-  val driver = Module(new NastiDriver(32, 8, 2))
-
-  bus.io.slaves(0) <> sram.io
-  bus.io.master <> conv.io.hasti
-  conv.io.nasti <> driver.io.nasti
-  io.finished := driver.io.finished
-  driver.io.start := io.start
-}