package uncore import Chisel._ case class TileLinkConfiguration(co: CoherencePolicyWithUncached, ln: LogicalNetworkConfiguration, addrBits: Int, masterXactIdBits: Int, clientXactIdBits: Int, dataBits: Int, writeMaskBits: Int, wordAddrBits: Int, atomicOpBits: Int) abstract trait TileLinkSubBundle extends Bundle { implicit val tlconf: TileLinkConfiguration override def clone = this.getClass.getConstructors.head.newInstance(tlconf).asInstanceOf[this.type] } trait HasPhysicalAddress extends TileLinkSubBundle { val addr = UInt(width = tlconf.addrBits) } trait HasClientTransactionId extends TileLinkSubBundle { val client_xact_id = Bits(width = tlconf.clientXactIdBits) } trait HasMasterTransactionId extends TileLinkSubBundle { val master_xact_id = Bits(width = tlconf.masterXactIdBits) } trait HasTileLinkData extends TileLinkSubBundle { val data = Bits(width = tlconf.dataBits) } trait SourcedMessage extends Bundle trait ClientSourcedMessage extends SourcedMessage trait MasterSourcedMessage extends SourcedMessage object Acquire { def apply(a_type: Bits, addr: UInt, client_xact_id: UInt)(implicit conf: TileLinkConfiguration): Acquire = { val acq = new Acquire acq.a_type := a_type acq.addr := addr acq.client_xact_id := client_xact_id acq.data := Bits(0) acq.write_mask := Bits(0) acq.subword_addr := Bits(0) acq.atomic_opcode := Bits(0) acq } def apply(a_type: Bits, addr: UInt, client_xact_id: UInt, data: UInt)(implicit conf: TileLinkConfiguration): Acquire = { val acq = apply(a_type, addr, client_xact_id) acq.data := data acq } def apply(a_type: UInt, addr: UInt, client_xact_id: UInt, write_mask: Bits, data: UInt)(implicit conf: TileLinkConfiguration): Acquire = { val acq = apply(a_type, addr, client_xact_id, data) acq.write_mask := write_mask acq } def apply(a_type: UInt, addr: UInt, client_xact_id: UInt, subword_addr: UInt, atomic_opcode: UInt, data: UInt)(implicit conf: TileLinkConfiguration): Acquire = { val acq = apply(a_type, addr, client_xact_id, data) acq.subword_addr := subword_addr acq.atomic_opcode := atomic_opcode acq } def apply(a: Acquire)(implicit conf: TileLinkConfiguration): Acquire = { val acq = new Acquire acq := a acq } } class Acquire(implicit val tlconf: TileLinkConfiguration) extends ClientSourcedMessage with HasPhysicalAddress with HasClientTransactionId with HasTileLinkData { val a_type = UInt(width = tlconf.co.acquireTypeWidth) val write_mask = Bits(width = tlconf.writeMaskBits) val subword_addr = Bits(width = tlconf.wordAddrBits) val atomic_opcode = Bits(width = tlconf.atomicOpBits) } object Probe { def apply(p_type: UInt, addr: UInt, master_xact_id: UInt)(implicit conf: TileLinkConfiguration) = { val prb = new Probe prb.p_type := p_type prb.addr := addr prb.master_xact_id := master_xact_id prb } } class Probe(implicit val tlconf: TileLinkConfiguration) extends MasterSourcedMessage with HasPhysicalAddress with HasMasterTransactionId { val p_type = UInt(width = tlconf.co.probeTypeWidth) } object Release { def apply(r_type: UInt, addr: UInt, data: UInt)(implicit conf: TileLinkConfiguration) = { val rel = new Release rel.r_type := r_type rel.addr := addr rel.data := data rel } def apply(r_type: UInt, addr: UInt, client_xact_id: UInt, master_xact_id: UInt)(implicit conf: TileLinkConfiguration) = { val rel = new Release rel.r_type := r_type rel.addr := addr rel.client_xact_id := client_xact_id rel.master_xact_id := master_xact_id rel.data := UInt(0) rel } def apply(r_type: UInt, addr: UInt, client_xact_id: UInt, master_xact_id: UInt, data: UInt)(implicit conf: TileLinkConfiguration): Release = { val rel = apply(r_type, addr, client_xact_id, master_xact_id) rel.data := data rel } } class Release(implicit val tlconf: TileLinkConfiguration) extends ClientSourcedMessage with HasPhysicalAddress with HasClientTransactionId with HasMasterTransactionId with HasTileLinkData { val r_type = UInt(width = tlconf.co.releaseTypeWidth) } object Grant { def apply(g_type: UInt, client_xact_id: UInt, master_xact_id: UInt)(implicit conf: TileLinkConfiguration) = { val gnt = new Grant gnt.g_type := g_type gnt.client_xact_id := client_xact_id gnt.master_xact_id := master_xact_id gnt.data := UInt(0) gnt } def apply(g_type: UInt, client_xact_id: UInt, master_xact_id: UInt, data: UInt)(implicit conf: TileLinkConfiguration): Grant = { val gnt = apply(g_type, client_xact_id, master_xact_id) gnt.data := data gnt } } class Grant(implicit val tlconf: TileLinkConfiguration) extends MasterSourcedMessage with HasTileLinkData with HasClientTransactionId with HasMasterTransactionId { val g_type = UInt(width = tlconf.co.grantTypeWidth) } class GrantAck(implicit val tlconf: TileLinkConfiguration) extends ClientSourcedMessage with HasMasterTransactionId class UncachedTileLinkIO(implicit conf: TileLinkConfiguration) extends Bundle { implicit val ln = conf.ln val acquire = new DecoupledIO(new LogicalNetworkIO(new Acquire)) val grant = new DecoupledIO(new LogicalNetworkIO(new Grant)).flip val grant_ack = new DecoupledIO(new LogicalNetworkIO(new GrantAck)) override def clone = { new UncachedTileLinkIO().asInstanceOf[this.type] } } class TileLinkIO(implicit conf: TileLinkConfiguration) extends UncachedTileLinkIO()(conf) { val probe = new DecoupledIO(new LogicalNetworkIO(new Probe)).flip val release = new DecoupledIO(new LogicalNetworkIO(new Release)) override def clone = { new TileLinkIO().asInstanceOf[this.type] } } abstract class TileLinkArbiterLike(val arbN: Int)(implicit conf: TileLinkConfiguration) extends Module { implicit val (ln, co) = (conf.ln, conf.co) type MasterSourcedWithId = MasterSourcedMessage with HasClientTransactionId type ClientSourcedWithId = ClientSourcedMessage with HasClientTransactionId def clientSourcedClientXactId(in: ClientSourcedWithId, id: Int): Bits def masterSourcedClientXactId(in: MasterSourcedWithId): Bits def arbIdx(in: MasterSourcedWithId): UInt def hookupClientSource[M <: ClientSourcedWithId] (ins: Seq[DecoupledIO[LogicalNetworkIO[M]]], out: DecoupledIO[LogicalNetworkIO[M]]) { def hasData(m: LogicalNetworkIO[M]) = co.messageHasData(m.payload) val arb = Module(new RRArbiter(out.bits.clone, arbN)) out <> arb.io.out ins.zipWithIndex.zip(arb.io.in).map{ case ((req,id), arb) => { arb.valid := req.valid arb.bits := req.bits arb.bits.payload.client_xact_id := clientSourcedClientXactId(req.bits.payload, id) req.ready := arb.ready }} } def hookupMasterSource[M <: MasterSourcedWithId] (ins: Seq[DecoupledIO[LogicalNetworkIO[M]]], out: DecoupledIO[LogicalNetworkIO[M]]) { out.ready := Bool(false) for (i <- 0 until arbN) { ins(i).valid := Bool(false) when (arbIdx(out.bits.payload) === UInt(i)) { ins(i).valid := out.valid out.ready := ins(i).ready } ins(i).bits := out.bits ins(i).bits.payload.client_xact_id := masterSourcedClientXactId(out.bits.payload) } } } abstract class UncachedTileLinkIOArbiter(n: Int)(implicit conf: TileLinkConfiguration) extends TileLinkArbiterLike(n)(conf) { val io = new Bundle { val in = Vec.fill(n){new UncachedTileLinkIO}.flip val out = new UncachedTileLinkIO } hookupClientSource(io.in.map(_.acquire), io.out.acquire) hookupMasterSource(io.in.map(_.grant), io.out.grant) val grant_ack_arb = Module(new RRArbiter(new LogicalNetworkIO(new GrantAck), n)) io.out.grant_ack <> grant_ack_arb.io.out grant_ack_arb.io.in zip io.in map { case (arb, req) => arb <> req.grant_ack } } abstract class TileLinkIOArbiter(n: Int)(implicit conf: TileLinkConfiguration) extends TileLinkArbiterLike(n)(conf) { val io = new Bundle { val in = Vec.fill(n){new TileLinkIO}.flip val out = new TileLinkIO } hookupClientSource(io.in.map(_.acquire), io.out.acquire) hookupClientSource(io.in.map(_.release), io.out.release) hookupMasterSource(io.in.map(_.grant), io.out.grant) io.in.map{ _.probe.valid := io.out.probe.valid } io.in.map{ _.probe.bits := io.out.probe.bits } io.out.probe.ready := io.in.map(_.probe.ready).reduce(_||_) val grant_ack_arb = Module(new RRArbiter(new LogicalNetworkIO(new GrantAck), n)) io.out.grant_ack <> grant_ack_arb.io.out grant_ack_arb.io.in zip io.in map { case (arb, req) => arb <> req.grant_ack } } abstract trait AppendsArbiterId { val arbN: Int def clientSourcedClientXactId(in: ClientSourcedMessage with HasClientTransactionId, id: Int) = Cat(in.client_xact_id, UInt(id, log2Up(arbN))) def masterSourcedClientXactId(in: MasterSourcedMessage with HasClientTransactionId) = in.client_xact_id >> UInt(log2Up(arbN)) def arbIdx(in: MasterSourcedMessage with HasClientTransactionId) = in.client_xact_id(log2Up(arbN)-1,0).toUInt } abstract trait PassesId { def clientSourcedClientXactId(in: ClientSourcedMessage with HasClientTransactionId, id: Int) = in.client_xact_id def masterSourcedClientXactId(in: MasterSourcedMessage with HasClientTransactionId) = in.client_xact_id def arbIdx(in: MasterSourcedMessage with HasClientTransactionId) = in.client_xact_id } abstract trait UsesNewId { val arbN: Int def clientSourcedClientXactId(in: ClientSourcedMessage with HasClientTransactionId, id: Int) = UInt(id, log2Up(arbN)) def masterSourcedClientXactId(in: MasterSourcedMessage with HasClientTransactionId) = UInt(0) def arbIdx(in: MasterSourcedMessage with HasClientTransactionId) = in.client_xact_id } class UncachedTileLinkIOArbiterThatAppendsArbiterId(val n: Int)(implicit conf: TileLinkConfiguration) extends UncachedTileLinkIOArbiter(n)(conf) with AppendsArbiterId class UncachedTileLinkIOArbiterThatPassesId(val n: Int)(implicit conf: TileLinkConfiguration) extends UncachedTileLinkIOArbiter(n)(conf) with PassesId class UncachedTileLinkIOArbiterThatUsesNewId(val n: Int)(implicit conf: TileLinkConfiguration) extends UncachedTileLinkIOArbiter(n)(conf) with UsesNewId class TileLinkIOArbiterThatAppendsArbiterId(val n: Int)(implicit conf: TileLinkConfiguration) extends TileLinkIOArbiter(n)(conf) with AppendsArbiterId class TileLinkIOArbiterThatPassesId(val n: Int)(implicit conf: TileLinkConfiguration) extends TileLinkIOArbiter(n)(conf) with PassesId class TileLinkIOArbiterThatUsesNewId(val n: Int)(implicit conf: TileLinkConfiguration) extends TileLinkIOArbiter(n)(conf) with UsesNewId