1
0

Merge remote-tracking branch 'origin/master' into unittest-config

This commit is contained in:
Henry Cook 2016-09-22 16:03:51 -07:00
commit 1e54820f8c
24 changed files with 508 additions and 264 deletions

View File

@ -0,0 +1,166 @@
package coreplex
import Chisel._
import cde.{Parameters, Field}
import junctions._
import uncore.tilelink._
import uncore.tilelink2._
import uncore.coherence._
import uncore.agents._
import uncore.devices._
import uncore.util._
import uncore.converters._
import rocket._
import rocket.Util._
/** Number of memory channels */
case object NMemoryChannels extends Field[Int]
/** Number of banks per memory channel */
case object NBanksPerMemoryChannel extends Field[Int]
/** Least significant bit of address used for bank partitioning */
case object BankIdLSB extends Field[Int]
/** Function for building some kind of coherence manager agent */
case object BuildL2CoherenceManager extends Field[(Int, Parameters) => CoherenceAgent]
/** Function for building some kind of tile connected to a reset signal */
case object BuildTiles extends Field[Seq[(Bool, Parameters) => Tile]]
/** The file to read the BootROM contents from */
case object BootROMFile extends Field[String]
trait HasCoreplexParameters {
implicit val p: Parameters
lazy val nBanksPerMemChannel = p(NBanksPerMemoryChannel)
lazy val lsb = p(BankIdLSB)
lazy val innerParams = p.alterPartial({ case TLId => "L1toL2" })
lazy val outermostParams = p.alterPartial({ case TLId => "Outermost" })
lazy val outermostMMIOParams = p.alterPartial({ case TLId => "MMIO_Outermost" })
lazy val globalAddrMap = p(rocketchip.GlobalAddrMap)
}
case class CoreplexConfig(
nTiles: Int,
nExtInterrupts: Int,
nSlaves: Int,
nMemChannels: Int,
hasSupervisor: Boolean)
{
val plicKey = PLICConfig(nTiles, hasSupervisor, nExtInterrupts, 0)
}
abstract class BaseCoreplex(c: CoreplexConfig)(implicit p: Parameters) extends LazyModule
abstract class BaseCoreplexBundle(val c: CoreplexConfig)(implicit val p: Parameters) extends Bundle with HasCoreplexParameters {
val master = new Bundle {
val mem = Vec(c.nMemChannels, new ClientUncachedTileLinkIO()(outermostParams))
val mmio = new ClientUncachedTileLinkIO()(outermostMMIOParams)
}
val slave = Vec(c.nSlaves, new ClientUncachedTileLinkIO()(innerParams)).flip
val interrupts = Vec(c.nExtInterrupts, Bool()).asInput
val debug = new DebugBusIO()(p).flip
val clint = Vec(c.nTiles, new CoreplexLocalInterrupts).asInput
val resetVector = UInt(INPUT, p(XLen))
val success = Bool(OUTPUT) // used for testing
}
abstract class BaseCoreplexModule[+L <: BaseCoreplex, +B <: BaseCoreplexBundle](
c: CoreplexConfig, l: L, b: => B)(implicit val p: Parameters) extends LazyModuleImp(l) with HasCoreplexParameters {
val outer: L = l
val io: B = b
// Build a set of Tiles
val tiles = p(BuildTiles) map { _(reset, p) }
val uncoreTileIOs = (tiles zipWithIndex) map { case (tile, i) => Wire(tile.io) }
val nCachedPorts = tiles.map(tile => tile.io.cached.size).reduce(_ + _)
val nUncachedPorts = tiles.map(tile => tile.io.uncached.size).reduce(_ + _)
val nBanks = c.nMemChannels * nBanksPerMemChannel
// Build an uncore backing the Tiles
buildUncore(p.alterPartial({
case HastiId => "TL"
case TLId => "L1toL2"
case NCachedTileLinkPorts => nCachedPorts
case NUncachedTileLinkPorts => nUncachedPorts
}))
def buildUncore(implicit p: Parameters) = {
// Create a simple L1toL2 NoC between the tiles and the banks of outer memory
// Cached ports are first in client list, making sharerToClientId just an indentity function
// addrToBank is sed to hash physical addresses (of cache blocks) to banks (and thereby memory channels)
def sharerToClientId(sharerId: UInt) = sharerId
def addrToBank(addr: UInt): UInt = if (nBanks == 0) UInt(0) else {
val isMemory = globalAddrMap.isInRegion("mem", addr << log2Up(p(CacheBlockBytes)))
Mux(isMemory, addr.extract(lsb + log2Ceil(nBanks) - 1, lsb), UInt(nBanks))
}
val l1tol2net = Module(new PortedTileLinkCrossbar(addrToBank, sharerToClientId))
// Create point(s) of coherence serialization
val managerEndpoints = List.tabulate(nBanks){id => p(BuildL2CoherenceManager)(id, p)}
managerEndpoints.flatMap(_.incoherent).foreach(_ := Bool(false))
val mmioManager = Module(new MMIOTileLinkManager()(p.alterPartial({
case TLId => "L1toL2"
case InnerTLId => "L1toL2"
case OuterTLId => "L2toMMIO"
})))
// Wire the tiles to the TileLink client ports of the L1toL2 network,
// and coherence manager(s) to the other side
l1tol2net.io.clients_cached <> uncoreTileIOs.map(_.cached).flatten
l1tol2net.io.clients_uncached <> uncoreTileIOs.map(_.uncached).flatten ++ io.slave
l1tol2net.io.managers <> managerEndpoints.map(_.innerTL) :+ mmioManager.io.inner
// Create a converter between TileLinkIO and MemIO for each channel
val mem_ic = Module(new TileLinkMemoryInterconnect(nBanksPerMemChannel, c.nMemChannels)(outermostParams))
val outerTLParams = p.alterPartial({ case TLId => "L2toMC" })
val backendBuffering = TileLinkDepths(0,0,0,0,0)
for ((bank, icPort) <- managerEndpoints zip mem_ic.io.in) {
val unwrap = Module(new ClientTileLinkIOUnwrapper()(outerTLParams))
unwrap.io.in <> TileLinkEnqueuer(bank.outerTL, backendBuffering)(outerTLParams)
TileLinkWidthAdapter(icPort, unwrap.io.out)
}
io.master.mem <> mem_ic.io.out
buildMMIONetwork(TileLinkEnqueuer(mmioManager.io.outer, 1))(
p.alterPartial({case TLId => "L2toMMIO"}))
}
def buildMMIONetwork(mmio: ClientUncachedTileLinkIO)(implicit p: Parameters) = {
val ioAddrMap = globalAddrMap.subMap("io")
val cBus = Module(new TileLinkRecursiveInterconnect(1, ioAddrMap))
cBus.io.in.head <> mmio
val plic = Module(new PLIC(c.plicKey))
plic.io.tl <> cBus.port("cbus:plic")
for (i <- 0 until io.interrupts.size) {
val gateway = Module(new LevelGateway)
gateway.io.interrupt := io.interrupts(i)
plic.io.devices(i) <> gateway.io.plic
}
val debugModule = Module(new DebugModule)
debugModule.io.tl <> cBus.port("cbus:debug")
debugModule.io.db <> io.debug
// connect coreplex-internal interrupts to tiles
for ((tile, i) <- (uncoreTileIOs zipWithIndex)) {
tile.interrupts := io.clint(i)
tile.interrupts.meip := plic.io.harts(plic.cfg.context(i, 'M'))
tile.interrupts.seip.foreach(_ := plic.io.harts(plic.cfg.context(i, 'S')))
tile.interrupts.debug := debugModule.io.debugInterrupts(i)
tile.hartid := i
tile.resetVector := io.resetVector
}
val tileSlavePorts = (0 until c.nTiles) map (i => s"cbus:dmem$i") filter (ioAddrMap contains _)
for ((t, m) <- (uncoreTileIOs.map(_.slave).flatten) zip (tileSlavePorts map (cBus port _)))
t <> m
io.master.mmio <> cBus.port("pbus")
}
// Coreplex doesn't know when to stop running
io.success := Bool(false)
}

View File

@ -4,165 +4,81 @@ import Chisel._
import cde.{Parameters, Field}
import junctions._
import uncore.tilelink._
import uncore.coherence._
import uncore.agents._
import uncore.devices._
import uncore.util._
import uncore.converters._
import rocket._
import rocket.Util._
/** Number of memory channels */
case object NMemoryChannels extends Field[Int]
/** Number of banks per memory channel */
case object NBanksPerMemoryChannel extends Field[Int]
/** Least significant bit of address used for bank partitioning */
case object BankIdLSB extends Field[Int]
/** Function for building some kind of coherence manager agent */
case object BuildL2CoherenceManager extends Field[(Int, Parameters) => CoherenceAgent]
/** Function for building some kind of tile connected to a reset signal */
case object BuildTiles extends Field[Seq[(Bool, Parameters) => Tile]]
/** The file to read the BootROM contents from */
case object BootROMFile extends Field[String]
trait DirectConnection {
val tiles: Seq[Tile]
val uncoreTileIOs: Seq[TileIO]
trait HasCoreplexParameters {
implicit val p: Parameters
lazy val nBanksPerMemChannel = p(NBanksPerMemoryChannel)
lazy val lsb = p(BankIdLSB)
lazy val innerParams = p.alterPartial({ case TLId => "L1toL2" })
lazy val outermostParams = p.alterPartial({ case TLId => "Outermost" })
lazy val outermostMMIOParams = p.alterPartial({ case TLId => "MMIO_Outermost" })
lazy val globalAddrMap = p(rocketchip.GlobalAddrMap)
}
val tlBuffering = TileLinkDepths(1,1,2,2,0)
val ultBuffering = UncachedTileLinkDepths(1,2)
case class CoreplexConfig(
nTiles: Int,
nExtInterrupts: Int,
nSlaves: Int,
nMemChannels: Int,
hasSupervisor: Boolean,
hasExtMMIOPort: Boolean)
{
val plicKey = PLICConfig(nTiles, hasSupervisor, nExtInterrupts, 0)
}
(tiles zip uncoreTileIOs) foreach { case (tile, uncore) =>
(uncore.cached zip tile.io.cached) foreach { case (u, t) => u <> TileLinkEnqueuer(t, tlBuffering)(t.p) }
(uncore.uncached zip tile.io.uncached) foreach { case (u, t) => u <> TileLinkEnqueuer(t, ultBuffering)(t.p) }
tile.io.slave.foreach { _ <> TileLinkEnqueuer(uncore.slave.get, 1)(uncore.slave.get.p) }
abstract class Coreplex(implicit val p: Parameters, implicit val c: CoreplexConfig) extends Module
with HasCoreplexParameters {
class CoreplexIO(implicit val p: Parameters, implicit val c: CoreplexConfig) extends Bundle {
val master = new Bundle {
val mem = Vec(c.nMemChannels, new ClientUncachedTileLinkIO()(outermostParams))
val mmio = c.hasExtMMIOPort.option(new ClientUncachedTileLinkIO()(outermostMMIOParams))
}
val slave = Vec(c.nSlaves, new ClientUncachedTileLinkIO()(innerParams)).flip
val interrupts = Vec(c.nExtInterrupts, Bool()).asInput
val debug = new DebugBusIO()(p).flip
val clint = Vec(c.nTiles, new CoreplexLocalInterrupts).asInput
val success = Bool(OUTPUT)
val resetVector = UInt(INPUT, p(XLen))
}
tile.io.interrupts <> uncore.interrupts
val io = new CoreplexIO
}
class DefaultCoreplex(tp: Parameters, tc: CoreplexConfig) extends Coreplex()(tp, tc) {
// Coreplex doesn't know when to stop running
io.success := Bool(false)
// Build a set of Tiles
val tileResets = Wire(Vec(tc.nTiles, Bool()))
val tileList = p(BuildTiles).zip(tileResets).map {
case (tile, rst) => tile(rst, p)
}
val nCachedPorts = tileList.map(tile => tile.io.cached.size).reduce(_ + _)
val nUncachedPorts = tileList.map(tile => tile.io.uncached.size).reduce(_ + _)
val nBanks = tc.nMemChannels * nBanksPerMemChannel
// Build an uncore backing the Tiles
buildUncore(p.alterPartial({
case HastiId => "TL"
case TLId => "L1toL2"
case NCachedTileLinkPorts => nCachedPorts
case NUncachedTileLinkPorts => nUncachedPorts
}))
def buildUncore(implicit p: Parameters) = {
// Create a simple L1toL2 NoC between the tiles and the banks of outer memory
// Cached ports are first in client list, making sharerToClientId just an indentity function
// addrToBank is sed to hash physical addresses (of cache blocks) to banks (and thereby memory channels)
def sharerToClientId(sharerId: UInt) = sharerId
def addrToBank(addr: UInt): UInt = if (nBanks == 0) UInt(0) else {
val isMemory = globalAddrMap.isInRegion("mem", addr << log2Up(p(CacheBlockBytes)))
Mux(isMemory, addr.extract(lsb + log2Ceil(nBanks) - 1, lsb), UInt(nBanks))
}
val preBuffering = TileLinkDepths(1,1,2,2,0)
val l1tol2net = Module(new PortedTileLinkCrossbar(addrToBank, sharerToClientId, preBuffering))
// Create point(s) of coherence serialization
val managerEndpoints = List.tabulate(nBanks){id => p(BuildL2CoherenceManager)(id, p)}
managerEndpoints.flatMap(_.incoherent).foreach(_ := Bool(false))
val mmioManager = Module(new MMIOTileLinkManager()(p.alterPartial({
case TLId => "L1toL2"
case InnerTLId => "L1toL2"
case OuterTLId => "L2toMMIO"
})))
// Wire the tiles to the TileLink client ports of the L1toL2 network,
// and coherence manager(s) to the other side
l1tol2net.io.clients_cached <> tileList.map(_.io.cached).flatten
l1tol2net.io.clients_uncached <> tileList.map(_.io.uncached).flatten ++ io.slave
l1tol2net.io.managers <> managerEndpoints.map(_.innerTL) :+ mmioManager.io.inner
// Create a converter between TileLinkIO and MemIO for each channel
val mem_ic = Module(new TileLinkMemoryInterconnect(nBanksPerMemChannel, tc.nMemChannels)(outermostParams))
val outerTLParams = p.alterPartial({ case TLId => "L2toMC" })
val backendBuffering = TileLinkDepths(0,0,0,0,0)
for ((bank, icPort) <- managerEndpoints zip mem_ic.io.in) {
val unwrap = Module(new ClientTileLinkIOUnwrapper()(outerTLParams))
unwrap.io.in <> TileLinkEnqueuer(bank.outerTL, backendBuffering)(outerTLParams)
TileLinkWidthAdapter(icPort, unwrap.io.out)
}
io.master.mem <> mem_ic.io.out
buildMMIONetwork(TileLinkEnqueuer(mmioManager.io.outer, 1))(
p.alterPartial({case TLId => "L2toMMIO"}))
}
def buildMMIONetwork(mmio: ClientUncachedTileLinkIO)(implicit p: Parameters) = {
val ioAddrMap = globalAddrMap.subMap("io")
val mmioNetwork = Module(new TileLinkRecursiveInterconnect(1, ioAddrMap))
mmioNetwork.io.in.head <> mmio
val plic = Module(new PLIC(c.plicKey))
plic.io.tl <> mmioNetwork.port("int:plic")
for (i <- 0 until io.interrupts.size) {
val gateway = Module(new LevelGateway)
gateway.io.interrupt := io.interrupts(i)
plic.io.devices(i) <> gateway.io.plic
}
val debugModule = Module(new DebugModule)
debugModule.io.tl <> mmioNetwork.port("int:debug")
debugModule.io.db <> io.debug
// connect coreplex-internal interrupts to tiles
for (((tile, tileReset), i) <- (tileList zip tileResets) zipWithIndex) {
tileReset := reset // TODO should tiles be reset separately from coreplex?
tile.io.interrupts := io.clint(i)
tile.io.interrupts.meip := plic.io.harts(plic.cfg.context(i, 'M'))
tile.io.interrupts.seip.foreach(_ := plic.io.harts(plic.cfg.context(i, 'S')))
tile.io.interrupts.debug := debugModule.io.debugInterrupts(i)
tile.io.hartid := i
tile.io.resetVector := io.resetVector
}
val tileSlavePorts = (0 until tc.nTiles) map (i => s"int:dmem$i") filter (ioAddrMap contains _)
for ((t, m) <- (tileList.map(_.io.slave).flatten) zip (tileSlavePorts map (mmioNetwork port _)))
t <> TileLinkEnqueuer(m, 1)
io.master.mmio.foreach { _ <> mmioNetwork.port("ext") }
tile.io.hartid := uncore.hartid
tile.io.resetVector := uncore.resetVector
}
}
class DefaultCoreplex(c: CoreplexConfig)(implicit p: Parameters) extends BaseCoreplex(c)(p) {
override lazy val module = Module(new DefaultCoreplexModule(c, this, new DefaultCoreplexBundle(c)(p))(p))
}
class DefaultCoreplexBundle(c: CoreplexConfig)(implicit p: Parameters) extends BaseCoreplexBundle(c)(p)
class DefaultCoreplexModule[+L <: DefaultCoreplex, +B <: DefaultCoreplexBundle](
c: CoreplexConfig, l: L, b: => B)(implicit p: Parameters) extends BaseCoreplexModule(c, l, b)(p)
with DirectConnection
/////
trait TileClockResetBundle {
val c: CoreplexConfig
val tcrs = Vec(c.nTiles, new Bundle {
val clock = Clock(INPUT)
val reset = Bool(INPUT)
})
}
trait AsyncConnection {
val io: TileClockResetBundle
val tiles: Seq[Tile]
val uncoreTileIOs: Seq[TileIO]
(tiles, uncoreTileIOs, io.tcrs).zipped foreach { case (tile, uncore, tcr) =>
tile.clock := tcr.clock
tile.reset := tcr.reset
(uncore.cached zip tile.io.cached) foreach { case (u, t) => u <> AsyncTileLinkFrom(tcr.clock, tcr.reset, t) }
(uncore.uncached zip tile.io.uncached) foreach { case (u, t) => u <> AsyncUTileLinkFrom(tcr.clock, tcr.reset, t) }
tile.io.slave.foreach { _ <> AsyncUTileLinkTo(tcr.clock, tcr.reset, uncore.slave.get)}
val ti = tile.io.interrupts
val ui = uncore.interrupts
ti.debug := LevelSyncTo(tcr.clock, ui.debug)
ti.mtip := LevelSyncTo(tcr.clock, ui.mtip)
ti.msip := LevelSyncTo(tcr.clock, ui.msip)
ti.meip := LevelSyncTo(tcr.clock, ui.meip)
ti.seip.foreach { _ := LevelSyncTo(tcr.clock, ui.seip.get) }
tile.io.hartid := uncore.hartid
tile.io.resetVector := uncore.resetVector
}
}
class MultiClockCoreplex(c: CoreplexConfig)(implicit p: Parameters) extends BaseCoreplex(c)(p) {
override lazy val module = Module(new MultiClockCoreplexModule(c, this, new MultiClockCoreplexBundle(c)(p))(p))
}
class MultiClockCoreplexBundle(c: CoreplexConfig)(implicit p: Parameters) extends BaseCoreplexBundle(c)(p)
with TileClockResetBundle
class MultiClockCoreplexModule[+L <: MultiClockCoreplex, +B <: MultiClockCoreplexBundle](
c: CoreplexConfig, l: L, b: => B)(implicit p: Parameters) extends BaseCoreplexModule(c, l, b)(p)
with AsyncConnection

View File

@ -69,7 +69,7 @@ class BusMasterTest(implicit p: Parameters) extends GroundTest()(p)
s_req_check :: s_resp_check :: s_done :: Nil) = Enum(Bits(), 8)
val state = Reg(init = s_idle)
val busMasterBlock = addrMap("io:ext:busmaster").start >> p(CacheBlockOffsetBits)
val busMasterBlock = addrMap("io:pbus:busmaster").start >> p(CacheBlockOffsetBits)
val start_acq = Put(
client_xact_id = UInt(0),
addr_block = UInt(busMasterBlock),

View File

@ -81,7 +81,7 @@ class PCIeMockupTestConfig extends Config(
class WithGroundTest extends Config(
(pname, site, here) => pname match {
case BuildCoreplex =>
(p: Parameters, c: CoreplexConfig) => Module(new GroundTestCoreplex(p, c))
(c: CoreplexConfig, p: Parameters) => uncore.tilelink2.LazyModule(new GroundTestCoreplex(c)(p)).module
case TLKey("L1toL2") => {
val useMEI = site(NTiles) <= 1 && site(NCachedTileLinkPorts) <= 1
TileLinkParameters(
@ -128,7 +128,7 @@ class WithComparator extends Config(
case BuildGroundTest =>
(p: Parameters) => Module(new ComparatorCore()(p))
case ComparatorKey => ComparatorParameters(
targets = Seq("mem", "io:ext:TL2:testram").map(name =>
targets = Seq("mem", "io:pbus:TL2:testram").map(name =>
site(GlobalAddrMap)(name).start.longValue),
width = 8,
operations = 1000,

View File

@ -2,8 +2,15 @@ package groundtest
import Chisel._
import cde.{Parameters}
import coreplex.{CoreplexConfig, DefaultCoreplex}
import coreplex._
class GroundTestCoreplex(tp: Parameters, tc: CoreplexConfig) extends DefaultCoreplex(tp, tc) {
io.success := tileList.flatMap(_.io.elements get "success").map(_.asInstanceOf[Bool]).reduce(_&&_)
class GroundTestCoreplex(c: CoreplexConfig)(implicit p: Parameters) extends BaseCoreplex(c)(p) {
override lazy val module = Module(new GroundTestCoreplexModule(c, this, new GroundTestCoreplexBundle(c)(p))(p))
}
class GroundTestCoreplexBundle(c: CoreplexConfig)(implicit p: Parameters) extends BaseCoreplexBundle(c)(p)
class GroundTestCoreplexModule[+L <: GroundTestCoreplex, +B <: GroundTestCoreplexBundle](
c: CoreplexConfig, l: L, b: => B)(implicit p: Parameters) extends BaseCoreplexModule(c, l, b)(p) with DirectConnection {
io.success := tiles.flatMap(_.io.elements get "success").map(_.asInstanceOf[Bool]).reduce(_&&_)
}

View File

@ -72,7 +72,7 @@ class IOGetAfterPutBlockRegression(implicit p: Parameters) extends Regression()(
io.mem.grant.ready := Bool(true)
io.cache.req.valid := !get_sent && started
io.cache.req.bits.addr := UInt(addrMap("io:ext:TL2:bootrom").start)
io.cache.req.bits.addr := UInt(addrMap("io:pbus:TL2:bootrom").start)
io.cache.req.bits.typ := UInt(log2Ceil(32 / 8))
io.cache.req.bits.cmd := M_XRD
io.cache.req.bits.tag := UInt(0)

View File

@ -101,7 +101,7 @@ class GroundTestTile(resetSignal: Bool)
extends Tile(resetSignal = resetSignal)(p)
with HasGroundTestParameters {
override val io = new TileIO {
override val io = new TileIO(bc) {
val success = Bool(OUTPUT)
}

View File

@ -85,3 +85,50 @@ object AsyncIrrevocableFrom
PostQueueIrrevocablize(AsyncDecoupledFrom(from_clock, from_reset, from_source, depth, sync))
}
}
/**
* This helper object synchronizes a level-sensitive signal from one
* clock domain to another.
*/
object LevelSyncCrossing {
class SynchronizerBackend(sync: Int, _clock: Clock) extends Module(Some(_clock)) {
val io = new Bundle {
val in = Bool(INPUT)
val out = Bool(OUTPUT)
}
io.out := ShiftRegister(io.in, sync)
}
class SynchronizerFrontend(_clock: Clock) extends Module(Some(_clock)) {
val io = new Bundle {
val in = Bool(INPUT)
val out = Bool(OUTPUT)
}
io.out := RegNext(io.in)
}
def apply(from_clock: Clock, to_clock: Clock, in: Bool, sync: Int = 2): Bool = {
val front = Module(new SynchronizerFrontend(from_clock))
val back = Module(new SynchronizerBackend(sync, to_clock))
front.io.in := in
back.io.in := front.io.out
back.io.out
}
}
object LevelSyncTo {
def apply(to_clock: Clock, in: Bool, sync: Int = 2): Bool = {
val scope = AsyncScope()
LevelSyncCrossing(scope.clock, to_clock, in, sync)
}
}
object LevelSyncFrom {
def apply(from_clock: Clock, in: Bool, sync: Int = 2): Bool = {
val scope = AsyncScope()
LevelSyncCrossing(from_clock, scope.clock, in, sync)
}
}

View File

@ -119,7 +119,7 @@ class DCache(implicit p: Parameters) extends L1HellaCacheModule()(p) {
require(nWays == 1)
metaWriteArb.io.out.ready := true
metaReadArb.io.out.ready := !metaWriteArb.io.out.valid
val inScratchpad = addrMap(s"io:int:dmem${tileId}").containsAddress(s1_paddr)
val inScratchpad = addrMap(s"io:cbus:dmem${tileId}").containsAddress(s1_paddr)
val hitState = Mux(inScratchpad, ClientMetadata.onReset.onHit(M_XWR), ClientMetadata.onReset)
(inScratchpad, hitState, L1Metadata(UInt(0), ClientMetadata.onReset))
} else {

View File

@ -22,22 +22,35 @@ case class RoccParameters(
nPTWPorts : Int = 0,
useFPU: Boolean = false)
case class TileBundleConfig(
nCachedTileLinkPorts: Int,
nUncachedTileLinkPorts: Int,
xLen: Int,
hasSlavePort: Boolean)
class TileIO(c: TileBundleConfig)(implicit p: Parameters) extends Bundle {
val cached = Vec(c.nCachedTileLinkPorts, new ClientTileLinkIO)
val uncached = Vec(c.nUncachedTileLinkPorts, new ClientUncachedTileLinkIO)
val hartid = UInt(INPUT, c.xLen)
val interrupts = new TileInterrupts().asInput
val slave = c.hasSlavePort.option(new ClientUncachedTileLinkIO().flip)
val resetVector = UInt(INPUT, c.xLen)
override def cloneType = new TileIO(c).asInstanceOf[this.type]
}
abstract class Tile(clockSignal: Clock = null, resetSignal: Bool = null)
(implicit p: Parameters) extends Module(Option(clockSignal), Option(resetSignal)) {
val nCachedTileLinkPorts = p(NCachedTileLinkPorts)
val nUncachedTileLinkPorts = p(NUncachedTileLinkPorts)
val dcacheParams = p.alterPartial({ case CacheName => "L1D" })
val bc = TileBundleConfig(
nCachedTileLinkPorts = nCachedTileLinkPorts,
nUncachedTileLinkPorts = nUncachedTileLinkPorts,
xLen = p(XLen),
hasSlavePort = p(DataScratchpadSize) > 0)
class TileIO extends Bundle {
val cached = Vec(nCachedTileLinkPorts, new ClientTileLinkIO)
val uncached = Vec(nUncachedTileLinkPorts, new ClientUncachedTileLinkIO)
val hartid = UInt(INPUT, p(XLen))
val interrupts = new TileInterrupts().asInput
val slave = (p(DataScratchpadSize) > 0).option(new ClientUncachedTileLinkIO().flip)
val resetVector = UInt(INPUT, p(XLen))
}
val io = new TileIO
val io = new TileIO(bc)
}
class RocketTile(clockSignal: Clock = null, resetSignal: Bool = null)

View File

@ -18,7 +18,7 @@ case object GlobalAddrMap extends Field[AddrMap]
case object ConfigString extends Field[String]
case object NCoreplexExtClients extends Field[Int]
/** Function for building Coreplex */
case object BuildCoreplex extends Field[(Parameters, CoreplexConfig) => Coreplex]
case object BuildCoreplex extends Field[(CoreplexConfig, Parameters) => BaseCoreplexModule[BaseCoreplex, BaseCoreplexBundle]]
/** Base Top with no Periphery */
abstract class BaseTop(q: Parameters) extends LazyModule {
@ -36,8 +36,7 @@ abstract class BaseTop(q: Parameters) extends LazyModule {
nExtInterrupts = pInterrupts.sum,
nSlaves = pBusMasters.sum,
nMemChannels = q(NMemoryChannels),
hasSupervisor = q(UseVM),
hasExtMMIOPort = true
hasSupervisor = q(UseVM)
)
lazy val genGlobalAddrMap = GenerateGlobalAddrMap(q, pDevices.get, peripheryManagers)
@ -53,21 +52,23 @@ abstract class BaseTop(q: Parameters) extends LazyModule {
peripheryBus.node := TLBuffer(TLWidthWidget(TLHintHandler(legacy.node), legacy.tlDataBytes))
}
class BaseTopBundle(val p: Parameters, val c: Coreplex) extends ParameterizedBundle()(p) {
abstract class BaseTopBundle(val p: Parameters) extends Bundle {
val success = Bool(OUTPUT)
}
abstract class BaseTopModule[+L <: BaseTop, +B <: BaseTopBundle](val p: Parameters, l: L, b: Coreplex => B) extends LazyModuleImp(l) {
abstract class BaseTopModule[+L <: BaseTop, +B <: BaseTopBundle](
val p: Parameters, l: L, b: => B) extends LazyModuleImp(l) {
val outer: L = l
val io: B = b
val coreplex = p(BuildCoreplex)(p, outer.c)
val io: B = b(coreplex)
val coreplex = p(BuildCoreplex)(outer.c, p)
val coreplexIO = coreplex.io
val mmioNetwork =
Module(new TileLinkRecursiveInterconnect(1, p(GlobalAddrMap).subMap("io:ext"))(
val pBus =
Module(new TileLinkRecursiveInterconnect(1, p(GlobalAddrMap).subMap("io:pbus"))(
p.alterPartial({ case TLId => "L2toMMIO" })))
mmioNetwork.io.in.head <> coreplex.io.master.mmio.get
outer.legacy.module.io.legacy <> mmioNetwork.port("TL2")
pBus.io.in.head <> coreplexIO.master.mmio
outer.legacy.module.io.legacy <> pBus.port("TL2")
println("Generated Address Map")
for (entry <- p(GlobalAddrMap).flatten) {
@ -86,5 +87,5 @@ abstract class BaseTopModule[+L <: BaseTop, +B <: BaseTopBundle](val p: Paramete
println(p(ConfigString))
ConfigStringOutput.contents = Some(p(ConfigString))
io.success := coreplex.io.success
io.success := coreplexIO.success
}

View File

@ -40,7 +40,7 @@ class BasePlatformConfig extends Config(
idBits = Dump("MEM_ID_BITS", site(MIFTagBits)))
}
case BuildCoreplex =>
(p: Parameters, c: CoreplexConfig) => Module(new DefaultCoreplex(p, c))
(c: CoreplexConfig, p: Parameters) => uncore.tilelink2.LazyModule(new DefaultCoreplex(c)(p)).module
case NExtTopInterrupts => 2
// Note that PLIC asserts that this is > 0.
case AsyncDebugBus => false

View File

@ -4,33 +4,66 @@ package rocketchip
import Chisel._
import cde.{Parameters, Field}
import coreplex.Coreplex
import junctions._
import coreplex._
import rocketchip._
/** Example Top with Periphery */
class ExampleTop(q: Parameters) extends BaseTop(q)
with PeripheryBootROM with PeripheryDebug with PeripheryExtInterrupts with PeripheryCoreplexLocalInterrupter
with PeripheryMasterMem with PeripheryMasterMMIO with PeripherySlave {
override lazy val module = Module(new ExampleTopModule(p, this, new ExampleTopBundle(p, _)))
with PeripheryBootROM
with PeripheryDebug
with PeripheryExtInterrupts
with PeripheryCoreplexLocalInterrupter
with PeripheryMasterMem
with PeripheryMasterMMIO
with PeripherySlave {
override lazy val module = Module(new ExampleTopModule(p, this, new ExampleTopBundle(p)))
}
class ExampleTopBundle(p: Parameters, c: Coreplex) extends BaseTopBundle(p, c)
with PeripheryBootROMBundle with PeripheryDebugBundle with PeripheryExtInterruptsBundle with PeripheryCoreplexLocalInterrupterBundle
with PeripheryMasterMemBundle with PeripheryMasterMMIOBundle with PeripherySlaveBundle
class ExampleTopBundle(p: Parameters) extends BaseTopBundle(p)
with PeripheryBootROMBundle
with PeripheryDebugBundle
with PeripheryExtInterruptsBundle
with PeripheryCoreplexLocalInterrupterBundle
with PeripheryMasterMemBundle
with PeripheryMasterMMIOBundle
with PeripherySlaveBundle
class ExampleTopModule[+L <: ExampleTop, +B <: ExampleTopBundle](p: Parameters, l: L, b: Coreplex => B) extends BaseTopModule(p, l, b)
with PeripheryBootROMModule with PeripheryDebugModule with PeripheryExtInterruptsModule with PeripheryCoreplexLocalInterrupterModule
with PeripheryMasterMemModule with PeripheryMasterMMIOModule with PeripherySlaveModule
class ExampleTopModule[+L <: ExampleTop, +B <: ExampleTopBundle](p: Parameters, l: L, b: => B) extends BaseTopModule(p, l, b)
with PeripheryBootROMModule
with PeripheryDebugModule
with PeripheryExtInterruptsModule
with PeripheryCoreplexLocalInterrupterModule
with PeripheryMasterMemModule
with PeripheryMasterMMIOModule
with PeripherySlaveModule
with HardwiredResetVector
/** Example Top with TestRAM */
class ExampleTopWithTestRAM(q: Parameters) extends ExampleTop(q)
with PeripheryTestRAM {
override lazy val module = Module(new ExampleTopWithTestRAMModule(p, this, new ExampleTopWithTestRAMBundle(p, _)))
override lazy val module = Module(new ExampleTopWithTestRAMModule(p, this, new ExampleTopWithTestRAMBundle(p)))
}
class ExampleTopWithTestRAMBundle(p: Parameters, c: Coreplex) extends ExampleTopBundle(p, c)
class ExampleTopWithTestRAMBundle(p: Parameters) extends ExampleTopBundle(p)
with PeripheryTestRAMBundle
class ExampleTopWithTestRAMModule[+L <: ExampleTopWithTestRAM, +B <: ExampleTopWithTestRAMBundle](p: Parameters, l: L, b: Coreplex => B) extends ExampleTopModule(p, l, b)
class ExampleTopWithTestRAMModule[+L <: ExampleTopWithTestRAM, +B <: ExampleTopWithTestRAMBundle](p: Parameters, l: L, b: => B) extends ExampleTopModule(p, l, b)
with PeripheryTestRAMModule
/** Example Top with Multi Clock */
class ExampleMultiClockTop(q: Parameters) extends ExampleTop(q)
with PeripheryTestRAM {
override lazy val module = Module(new ExampleMultiClockTopModule(p, this, new ExampleMultiClockTopBundle(p)))
}
class ExampleMultiClockTopBundle(p: Parameters) extends ExampleTopBundle(p)
class ExampleMultiClockTopModule[+L <: ExampleMultiClockTop, +B <: ExampleMultiClockTopBundle](p: Parameters, l: L, b: => B) extends ExampleTopModule(p, l, b) {
val multiClockCoreplexIO = coreplexIO.asInstanceOf[MultiClockCoreplexBundle]
multiClockCoreplexIO.tcrs foreach { tcr =>
tcr.clock := clock
tcr.reset := reset
}
}

View File

@ -101,16 +101,16 @@ trait PeripheryDebugModule {
implicit val p: Parameters
val outer: PeripheryDebug
val io: PeripheryDebugBundle
val coreplex: Coreplex
val coreplexIO: BaseCoreplexBundle
if (p(IncludeJtagDTM)) {
// JtagDTMWithSync is a wrapper which
// handles the synchronization as well.
val dtm = Module (new JtagDTMWithSync()(p))
dtm.io.jtag <> io.jtag.get
coreplex.io.debug <> dtm.io.debug
coreplexIO.debug <> dtm.io.debug
} else {
coreplex.io.debug <>
coreplexIO.debug <>
(if (p(AsyncDebugBus)) AsyncDebugBusFrom(io.debug_clk.get, io.debug_rst.get, io.debug.get)
else io.debug.get)
}
@ -134,12 +134,12 @@ trait PeripheryExtInterruptsModule {
implicit val p: Parameters
val outer: PeripheryExtInterrupts
val io: PeripheryExtInterruptsBundle
val coreplex: Coreplex
val coreplexIO: BaseCoreplexBundle
{
val r = outer.pInterrupts.range("ext")
((r._1 until r._2) zipWithIndex) foreach { case (c, i) =>
coreplex.io.interrupts(c) := io.interrupts(i)
coreplexIO.interrupts(c) := io.interrupts(i)
}
}
}
@ -163,10 +163,10 @@ trait PeripheryMasterMemModule extends HasPeripheryParameters {
implicit val p: Parameters
val outer: PeripheryMasterMem
val io: PeripheryMasterMemBundle
val coreplex: Coreplex
val coreplexIO: BaseCoreplexBundle
// Abuse the fact that zip takes the shorter of the two lists
((io.mem_axi zip coreplex.io.master.mem) zipWithIndex) foreach { case ((axi, mem), idx) =>
((io.mem_axi zip coreplexIO.master.mem) zipWithIndex) foreach { case ((axi, mem), idx) =>
val axi_sync = PeripheryUtils.convertTLtoAXI(mem)(outermostParams)
axi_sync.ar.bits.cache := CACHE_NORMAL_NOCACHE_BUF
axi_sync.aw.bits.cache := CACHE_NORMAL_NOCACHE_BUF
@ -176,11 +176,11 @@ trait PeripheryMasterMemModule extends HasPeripheryParameters {
)
}
(io.mem_ahb zip coreplex.io.master.mem) foreach { case (ahb, mem) =>
(io.mem_ahb zip coreplexIO.master.mem) foreach { case (ahb, mem) =>
ahb <> PeripheryUtils.convertTLtoAHB(mem, atomics = false)(outermostParams)
}
(io.mem_tl zip coreplex.io.master.mem) foreach { case (tl, mem) =>
(io.mem_tl zip coreplexIO.master.mem) foreach { case (tl, mem) =>
tl <> TileLinkEnqueuer(mem, 2)(outermostParams)
}
}
@ -204,10 +204,10 @@ trait PeripheryMasterMMIOModule extends HasPeripheryParameters {
implicit val p: Parameters
val outer: PeripheryMasterMMIO
val io: PeripheryMasterMMIOBundle
val mmioNetwork: TileLinkRecursiveInterconnect
val pBus: TileLinkRecursiveInterconnect
val mmio_ports = p(ExtMMIOPorts) map { port =>
TileLinkWidthAdapter(mmioNetwork.port(port.name), "MMIO_Outermost")
TileLinkWidthAdapter(pBus.port(port.name), "MMIO_Outermost")
}
val mmio_axi_start = 0
@ -258,7 +258,7 @@ trait PeripherySlaveModule extends HasPeripheryParameters {
implicit val p: Parameters
val outer: PeripherySlave
val io: PeripherySlaveBundle
val coreplex: Coreplex
val coreplexIO: BaseCoreplexBundle
if (p(NExtBusAXIChannels) > 0) {
val arb = Module(new NastiArbiter(p(NExtBusAXIChannels)))
@ -273,7 +273,7 @@ trait PeripherySlaveModule extends HasPeripheryParameters {
val r = outer.pBusMasters.range("ext")
require(r._2 - r._1 == 1, "RangeManager should return 1 slot")
coreplex.io.slave(r._1) <> conv.io.tl
coreplexIO.slave(r._1) <> conv.io.tl
}
}
@ -299,10 +299,10 @@ trait PeripheryCoreplexLocalInterrupterModule extends HasPeripheryParameters {
implicit val p: Parameters
val outer: PeripheryCoreplexLocalInterrupter
val io: PeripheryCoreplexLocalInterrupterBundle
val coreplex: Coreplex
val coreplexIO: BaseCoreplexBundle
outer.clint.module.io.rtcTick := Counter(p(RTCPeriod)).inc()
coreplex.io.clint <> outer.clint.module.io.tiles
coreplexIO.clint <> outer.clint.module.io.tiles
}
/////
@ -371,6 +371,6 @@ trait PeripheryTestBusMasterModule {
/////
trait HardwiredResetVector {
val coreplex: Coreplex
coreplex.io.resetVector := UInt(0x1000) // boot ROM
val coreplexIO: BaseCoreplexBundle
coreplexIO.resetVector := UInt(0x1000) // boot ROM
}

View File

@ -53,7 +53,7 @@ class GlobalVariable[T] {
object GenerateGlobalAddrMap {
def apply(p: Parameters, pDevicesEntries: Seq[AddrMapEntry], peripheryManagers: Seq[TLManagerParameters]) = {
lazy val intIOAddrMap: AddrMap = {
lazy val cBusIOAddrMap: AddrMap = {
val entries = collection.mutable.ArrayBuffer[AddrMapEntry]()
entries += AddrMapEntry("debug", MemSize(4096, MemAttr(AddrMapProt.RWX)))
entries += AddrMapEntry("plic", MemRange(0x40000000, 0x4000000, MemAttr(AddrMapProt.RW)))
@ -84,15 +84,15 @@ object GenerateGlobalAddrMap {
}.flatten
lazy val tl2AddrMap = new AddrMap(tl2Devices, collapse = true)
lazy val extIOAddrMap = new AddrMap(AddrMapEntry("TL2", tl2AddrMap) +: (p(ExtMMIOPorts) ++ pDevicesEntries), collapse = true)
lazy val pBusIOAddrMap = new AddrMap(AddrMapEntry("TL2", tl2AddrMap) +: (p(ExtMMIOPorts) ++ pDevicesEntries), collapse = true)
val memBase = 0x80000000L
val memSize = p(ExtMemSize)
Dump("MEM_BASE", memBase)
val intern = AddrMapEntry("int", intIOAddrMap)
val extern = AddrMapEntry("ext", extIOAddrMap)
val io = AddrMapEntry("io", AddrMap((intern +: (!extIOAddrMap.isEmpty).option(extern).toSeq):_*))
val cBus = AddrMapEntry("cbus", cBusIOAddrMap)
val pBus = AddrMapEntry("pbus", pBusIOAddrMap)
val io = AddrMapEntry("io", AddrMap((cBus +: (!pBusIOAddrMap.isEmpty).option(pBus).toSeq):_*))
val mem = AddrMapEntry("mem", MemRange(memBase, memSize, MemAttr(AddrMapProt.RWX, true)))
AddrMap((io +: (p(NMemoryChannels) > 0).option(mem).toSeq):_*)
}
@ -101,8 +101,8 @@ object GenerateGlobalAddrMap {
object GenerateConfigString {
def apply(p: Parameters, c: CoreplexConfig, pDevicesEntries: Seq[AddrMapEntry], peripheryManagers: Seq[TLManagerParameters]) = {
val addrMap = p(GlobalAddrMap)
val plicAddr = addrMap("io:int:plic").start
val clint = CoreplexLocalInterrupterConfig(0, addrMap("io:ext:TL2:clint").start)
val plicAddr = addrMap("io:cbus:plic").start
val clint = CoreplexLocalInterrupterConfig(0, addrMap("io:pbus:TL2:clint").start)
val xLen = p(XLen)
val res = new StringBuilder
res append "plic {\n"
@ -155,7 +155,7 @@ object GenerateConfigString {
}
res append "};\n"
pDevicesEntries foreach { entry =>
val region = addrMap("io:ext:" + entry.name)
val region = addrMap("io:pbus:" + entry.name)
res append s"${entry.name} {\n"
res append s" addr 0x${region.start.toString(16)};\n"
res append s" size 0x${region.size.toString(16)}; \n"

View File

@ -0,0 +1,53 @@
package uncore.tilelink
import Chisel._
import junctions._
object AsyncClientUncachedTileLinkCrossing {
def apply(from_clock: Clock, from_reset: Bool, from_source: ClientUncachedTileLinkIO, to_clock: Clock, to_reset: Bool, depth: Int = 8, sync: Int = 3): ClientUncachedTileLinkIO = {
val to_sink = Wire(new ClientUncachedTileLinkIO()(from_source.p))
to_sink.acquire <> AsyncDecoupledCrossing(from_clock, from_reset, from_source.acquire, to_clock, to_reset, depth, sync)
from_source.grant <> AsyncDecoupledCrossing(to_clock, to_reset, to_sink.grant, from_clock, from_reset, depth, sync)
to_sink
}
}
object AsyncClientTileLinkCrossing {
def apply(from_clock: Clock, from_reset: Bool, from_source: ClientTileLinkIO, to_clock: Clock, to_reset: Bool, depth: Int = 8, sync: Int = 3): ClientTileLinkIO = {
val to_sink = Wire(new ClientTileLinkIO()(from_source.p))
to_sink.acquire <> AsyncDecoupledCrossing(from_clock, from_reset, from_source.acquire, to_clock, to_reset, depth, sync)
to_sink.release <> AsyncDecoupledCrossing(from_clock, from_reset, from_source.release, to_clock, to_reset, depth, sync)
to_sink.finish <> AsyncDecoupledCrossing(from_clock, from_reset, from_source.finish, to_clock, to_reset, depth, sync)
from_source.grant <> AsyncDecoupledCrossing(to_clock, to_reset, to_sink.grant, from_clock, from_reset, depth, sync)
from_source.probe <> AsyncDecoupledCrossing(to_clock, to_reset, to_sink.probe, from_clock, from_reset, depth, sync)
to_sink
}
}
object AsyncUTileLinkTo {
def apply(to_clock: Clock, to_reset: Bool, source: ClientUncachedTileLinkIO, depth: Int = 8, sync: Int = 3): ClientUncachedTileLinkIO = {
val scope = AsyncScope()
AsyncClientUncachedTileLinkCrossing(scope.clock, scope.reset, source, to_clock, to_reset, depth, sync)
}
}
object AsyncUTileLinkFrom {
def apply(from_clock: Clock, from_reset: Bool, from_source: ClientUncachedTileLinkIO, depth: Int = 8, sync: Int = 3): ClientUncachedTileLinkIO = {
val scope = AsyncScope()
AsyncClientUncachedTileLinkCrossing(from_clock, from_reset, from_source, scope.clock, scope.reset, depth, sync)
}
}
object AsyncTileLinkTo {
def apply(to_clock: Clock, to_reset: Bool, source: ClientTileLinkIO, depth: Int = 8, sync: Int = 3): ClientTileLinkIO = {
val scope = AsyncScope()
AsyncClientTileLinkCrossing(scope.clock, scope.reset, source, to_clock, to_reset, depth, sync)
}
}
object AsyncTileLinkFrom {
def apply(from_clock: Clock, from_reset: Bool, from_source: ClientTileLinkIO, depth: Int = 8, sync: Int = 3): ClientTileLinkIO = {
val scope = AsyncScope()
AsyncClientTileLinkCrossing(from_clock, from_reset, from_source, scope.clock, scope.reset, depth, sync)
}
}

View File

@ -168,6 +168,7 @@ class TLFragmenter(minSize: Int, maxSize: Int, alwaysMin: Boolean = false) exten
out.d.ready := in.d.ready || drop
in.d.valid := out.d.valid && !drop
in.d.bits := out.d.bits // pass most stuff unchanged
in.d.bits.addr_lo := out.d.bits.addr_lo & ~dsizeOH1
in.d.bits.source := out.d.bits.source >> fragmentBits
in.d.bits.size := Mux(dFirst, dFirst_size, dOrig)

View File

@ -4,6 +4,7 @@ package uncore.tilelink2
import Chisel._
import chisel3.util.LFSR16
import unittest._
import util.Pow2ClockDivider
class IDMapGenerator(numIds: Int) extends Module {
val w = log2Up(numIds)
@ -208,15 +209,6 @@ class TLFuzzer(
}
}
class ClockDivider extends BlackBox {
val io = new Bundle {
val clock_in = Clock(INPUT)
val reset_in = Bool(INPUT)
val clock_out = Clock(OUTPUT)
val reset_out = Bool(OUTPUT)
}
}
class TLFuzzRAM extends LazyModule
{
val model = LazyModule(new TLRAMModel)
@ -240,17 +232,14 @@ class TLFuzzRAM extends LazyModule
io.finished := fuzz.module.io.finished
// Shove the RAM into another clock domain
val clocks = Module(new ClockDivider)
val clocks = Module(new Pow2ClockDivider(2))
ram.module.clock := clocks.io.clock_out
ram.module.reset := clocks.io.reset_out
clocks.io.clock_in := clock
clocks.io.reset_in := reset
// ... and safely cross TL2 into it
cross.module.io.in_clock := clock
cross.module.io.in_reset := reset
cross.module.io.out_clock := clocks.io.clock_out
cross.module.io.out_reset := clocks.io.reset_out
cross.module.io.out_reset := reset
}
}

View File

@ -3,6 +3,7 @@
package uncore.tilelink2
import Chisel._
import util.Pow2ClockDivider
object LFSR16Seed
{
@ -225,9 +226,7 @@ trait RRTest1Bundle
trait RRTest1Module extends Module with HasRegMap
{
val clocks = Module(new ClockDivider)
clocks.io.clock_in := clock
clocks.io.reset_in := reset
val clocks = Module(new Pow2ClockDivider(2))
def x(bits: Int) = {
val field = UInt(width = bits)
@ -237,7 +236,7 @@ trait RRTest1Module extends Module with HasRegMap
readCross.io.master_reset := reset
readCross.io.master_allow := Bool(true)
readCross.io.slave_clock := clocks.io.clock_out
readCross.io.slave_reset := clocks.io.reset_out
readCross.io.slave_reset := reset
readCross.io.slave_allow := Bool(true)
val writeCross = Module(new RegisterWriteCrossing(field))
@ -245,7 +244,7 @@ trait RRTest1Module extends Module with HasRegMap
writeCross.io.master_reset := reset
writeCross.io.master_allow := Bool(true)
writeCross.io.slave_clock := clocks.io.clock_out
writeCross.io.slave_reset := clocks.io.reset_out
writeCross.io.slave_reset := reset
writeCross.io.slave_allow := Bool(true)
readCross.io.slave_register := writeCross.io.slave_register

View File

@ -32,4 +32,3 @@ class WithUncoreUnitTests extends Config(
)
class UncoreUnitTestConfig extends Config(new WithUncoreUnitTests ++ new BaseConfig)

View File

@ -0,0 +1,36 @@
package util
import Chisel._
/** Divide the clock by 2 */
class ClockDivider2 extends Module {
val io = new Bundle {
val clock_out = Clock(OUTPUT)
}
val clock_reg = Reg(Bool())
clock_reg := !clock_reg
io.clock_out := clock_reg.asClock
}
/** Divide the clock by power of 2 times.
* @param pow2 divides the clock 2 ^ pow2 times
* WARNING: This is meant for simulation use only. */
class Pow2ClockDivider(pow2: Int) extends Module {
val io = new Bundle {
val clock_out = Clock(OUTPUT)
}
if (pow2 == 0) {
io.clock_out := clock
} else {
val dividers = Seq.fill(pow2) { Module(new ClockDivider2) }
dividers.init.zip(dividers.tail).map { case (last, next) =>
next.clock := last.io.clock_out
}
io.clock_out := dividers.last.io.clock_out
}
}

View File

@ -9,7 +9,6 @@ bb_vsrcs = $(base_dir)/vsrc/DebugTransportModuleJtag.v \
$(base_dir)/vsrc/AsyncMailbox.v \
$(base_dir)/vsrc/AsyncResetReg.v \
$(base_dir)/vsrc/AsyncSetReg.v \
$(base_dir)/vsrc/ClockDivider.v \
sim_vsrcs = \

View File

@ -1,19 +0,0 @@
// You can't divide clocks in Chisel
module ClockDivider(
input clock_in,
input reset_in,
output clock_out,
output reset_out
);
reg [2:0] shift = 3'b001;
always @(posedge clock_in)
begin
shift <= {shift[0], shift[2:1]};
end
assign reset_out = reset_in;
assign clock_out = shift[0];
endmodule

View File

@ -1,12 +1,16 @@
// See LICENSE for license details.
`ifndef RESET_DELAY
`define RESET_DELAY 777.7
`endif
module TestDriver;
reg clock = 1'b0;
reg reset = 1'b1;
always #(`CLOCK_PERIOD/2.0) clock = ~clock;
initial #777.7 reset = 0;
initial #(`RESET_DELAY) reset = 0;
// Read input arguments and initialize
reg verbose = 1'b0;