1227 lines
45 KiB
Scala
1227 lines
45 KiB
Scala
package uncore
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import Chisel._
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import junctions._
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import cde.Parameters
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/** Utilities for safely wrapping a *UncachedTileLink by pinning probe.ready and release.valid low */
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object TileLinkIOWrapper {
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def apply(tl: ClientUncachedTileLinkIO)(implicit p: Parameters): ClientTileLinkIO = {
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val conv = Module(new ClientTileLinkIOWrapper)
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conv.io.in <> tl
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conv.io.out
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}
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def apply(tl: UncachedTileLinkIO)(implicit p: Parameters): TileLinkIO = {
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val conv = Module(new TileLinkIOWrapper)
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conv.io.in <> tl
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conv.io.out
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}
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def apply(tl: ClientTileLinkIO): ClientTileLinkIO = tl
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def apply(tl: TileLinkIO): TileLinkIO = tl
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}
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class TileLinkIOWrapper(implicit p: Parameters) extends TLModule()(p) {
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val io = new Bundle {
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val in = new UncachedTileLinkIO().flip
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val out = new TileLinkIO
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}
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io.out.acquire <> io.in.acquire
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io.in.grant <> io.out.grant
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io.out.finish <> io.in.finish
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io.out.probe.ready := Bool(true)
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io.out.release.valid := Bool(false)
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}
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class ClientTileLinkIOWrapper(implicit p: Parameters) extends TLModule()(p) {
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val io = new Bundle {
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val in = new ClientUncachedTileLinkIO().flip
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val out = new ClientTileLinkIO
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}
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io.out.acquire <> io.in.acquire
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io.in.grant <> io.out.grant
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io.out.probe.ready := Bool(true)
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io.out.release.valid := Bool(false)
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}
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/** A helper module that automatically issues [[uncore.Finish]] messages in repsonse
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* to [[uncore.Grant]] that it receives from a manager and forwards to a client
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*/
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class FinishUnit(srcId: Int = 0, outstanding: Int = 2)(implicit p: Parameters) extends TLModule()(p)
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with HasDataBeatCounters {
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val io = new Bundle {
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val grant = Decoupled(new LogicalNetworkIO(new Grant)).flip
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val refill = Decoupled(new Grant)
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val finish = Decoupled(new LogicalNetworkIO(new Finish))
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val ready = Bool(OUTPUT)
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}
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val g = io.grant.bits.payload
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if(tlNetworkPreservesPointToPointOrdering) {
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io.finish.valid := Bool(false)
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io.refill.valid := io.grant.valid
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io.refill.bits := g
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io.grant.ready := io.refill.ready
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io.ready := Bool(true)
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} else {
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// We only want to send Finishes after we have collected all beats of
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// a multibeat Grant. But Grants from multiple managers or transactions may
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// get interleaved, so we could need a counter for each.
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val done = if(tlNetworkDoesNotInterleaveBeats) {
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connectIncomingDataBeatCounterWithHeader(io.grant)
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} else {
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val entries = 1 << tlClientXactIdBits
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def getId(g: LogicalNetworkIO[Grant]) = g.payload.client_xact_id
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assert(getId(io.grant.bits) <= UInt(entries), "Not enough grant beat counters, only " + entries + " entries.")
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connectIncomingDataBeatCountersWithHeader(io.grant, entries, getId).reduce(_||_)
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}
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val q = Module(new FinishQueue(outstanding))
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q.io.enq.valid := io.grant.fire() && g.requiresAck() && (!g.hasMultibeatData() || done)
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q.io.enq.bits := g.makeFinish()
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q.io.enq.bits.manager_id := io.grant.bits.header.src
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io.finish.bits.header.src := UInt(srcId)
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io.finish.bits.header.dst := q.io.deq.bits.manager_id
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io.finish.bits.payload := q.io.deq.bits
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io.finish.valid := q.io.deq.valid
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q.io.deq.ready := io.finish.ready
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io.refill.valid := (q.io.enq.ready || !g.requiresAck()) && io.grant.valid
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io.refill.bits := g
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io.grant.ready := (q.io.enq.ready || !g.requiresAck()) && io.refill.ready
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io.ready := q.io.enq.ready
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}
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}
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class FinishQueue(entries: Int)(implicit p: Parameters) extends Queue(new FinishToDst()(p), entries)
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/** A port to convert [[uncore.ClientTileLinkIO]].flip into [[uncore.TileLinkIO]]
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*
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* Creates network headers for [[uncore.Acquire]] and [[uncore.Release]] messages,
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* calculating header.dst and filling in header.src.
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* Strips headers from [[uncore.Probe Probes]].
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* Passes [[uncore.GrantFromSrc]] and accepts [[uncore.FinishFromDst]] in response,
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* setting up the headers for each.
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*
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* @param clientId network port id of this agent
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* @param addrConvert how a physical address maps to a destination manager port id
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*/
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class ClientTileLinkNetworkPort(clientId: Int, addrConvert: UInt => UInt)
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(implicit p: Parameters) extends TLModule()(p) {
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val io = new Bundle {
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val client = new ClientTileLinkIO().flip
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val network = new TileLinkIO
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}
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val acq_with_header = ClientTileLinkHeaderCreator(io.client.acquire, clientId, addrConvert)
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val rel_with_header = ClientTileLinkHeaderCreator(io.client.release, clientId, addrConvert)
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val fin_with_header = ClientTileLinkHeaderCreator(io.client.finish, clientId)
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val prb_without_header = DecoupledLogicalNetworkIOUnwrapper(io.network.probe)
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val gnt_without_header = DecoupledLogicalNetworkIOUnwrapper(io.network.grant)
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io.network.acquire <> acq_with_header
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io.network.release <> rel_with_header
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io.network.finish <> fin_with_header
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io.client.probe <> prb_without_header
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io.client.grant.bits.manager_id := io.network.grant.bits.header.src
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io.client.grant <> gnt_without_header
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}
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/** A port to convert [[uncore.ClientUncachedTileLinkIO]].flip into [[uncore.TileLinkIO]]
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*
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* Creates network headers for [[uncore.Acquire]] and [[uncore.Release]] messages,
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* calculating header.dst and filling in header.src.
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* Responds to [[uncore.Grant]] by automatically issuing [[uncore.Finish]] to the granting managers.
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*
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* @param clientId network port id of this agent
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* @param addrConvert how a physical address maps to a destination manager port id
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*/
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class ClientUncachedTileLinkNetworkPort(clientId: Int, addrConvert: UInt => UInt)
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(implicit p: Parameters) extends TLModule()(p) {
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val io = new Bundle {
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val client = new ClientUncachedTileLinkIO().flip
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val network = new TileLinkIO
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}
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val finisher = Module(new FinishUnit(clientId))
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finisher.io.grant <> io.network.grant
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io.network.finish <> finisher.io.finish
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val acq_with_header = ClientTileLinkHeaderCreator(io.client.acquire, clientId, addrConvert)
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val gnt_without_header = finisher.io.refill
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io.network.acquire.bits := acq_with_header.bits
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io.network.acquire.valid := acq_with_header.valid && finisher.io.ready
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acq_with_header.ready := io.network.acquire.ready && finisher.io.ready
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io.client.grant <> gnt_without_header
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io.network.probe.ready := Bool(false)
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io.network.release.valid := Bool(false)
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}
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object ClientTileLinkHeaderCreator {
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def apply[T <: ClientToManagerChannel with HasManagerId](
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in: DecoupledIO[T],
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clientId: Int)
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(implicit p: Parameters): DecoupledIO[LogicalNetworkIO[T]] = {
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val out = Wire(new DecoupledIO(new LogicalNetworkIO(in.bits)))
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out.bits.payload := in.bits
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out.bits.header.src := UInt(clientId)
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out.bits.header.dst := in.bits.manager_id
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out.valid := in.valid
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in.ready := out.ready
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out
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}
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def apply[T <: ClientToManagerChannel with HasCacheBlockAddress](
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in: DecoupledIO[T],
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clientId: Int,
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addrConvert: UInt => UInt)
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(implicit p: Parameters): DecoupledIO[LogicalNetworkIO[T]] = {
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val out = Wire(new DecoupledIO(new LogicalNetworkIO(in.bits)))
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out.bits.payload := in.bits
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out.bits.header.src := UInt(clientId)
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out.bits.header.dst := addrConvert(in.bits.addr_block)
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out.valid := in.valid
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in.ready := out.ready
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out
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}
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}
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/** A port to convert [[uncore.ManagerTileLinkIO]].flip into [[uncore.TileLinkIO]].flip
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*
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* Creates network headers for [[uncore.Probe]] and [[uncore.Grant]] messagess,
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* calculating header.dst and filling in header.src.
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* Strips headers from [[uncore.Acquire]], [[uncore.Release]] and [[uncore.Finish]],
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* but supplies client_id instead.
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*
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* @param managerId the network port id of this agent
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* @param idConvert how a sharer id maps to a destination client port id
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*/
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class ManagerTileLinkNetworkPort(managerId: Int, idConvert: UInt => UInt)
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(implicit p: Parameters) extends TLModule()(p) {
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val io = new Bundle {
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val manager = new ManagerTileLinkIO().flip
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val network = new TileLinkIO().flip
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}
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io.network.grant <> ManagerTileLinkHeaderCreator(io.manager.grant, managerId, (u: UInt) => u)
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io.network.probe <> ManagerTileLinkHeaderCreator(io.manager.probe, managerId, idConvert)
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io.manager.acquire <> DecoupledLogicalNetworkIOUnwrapper(io.network.acquire)
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io.manager.acquire.bits.client_id := io.network.acquire.bits.header.src
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io.manager.release <> DecoupledLogicalNetworkIOUnwrapper(io.network.release)
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io.manager.release.bits.client_id := io.network.release.bits.header.src
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io.manager.finish <> DecoupledLogicalNetworkIOUnwrapper(io.network.finish)
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}
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object ManagerTileLinkHeaderCreator {
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def apply[T <: ManagerToClientChannel with HasClientId](
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in: DecoupledIO[T],
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managerId: Int,
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idConvert: UInt => UInt)
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(implicit p: Parameters): DecoupledIO[LogicalNetworkIO[T]] = {
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val out = Wire(new DecoupledIO(new LogicalNetworkIO(in.bits)))
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out.bits.payload := in.bits
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out.bits.header.src := UInt(managerId)
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out.bits.header.dst := idConvert(in.bits.client_id)
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out.valid := in.valid
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in.ready := out.ready
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out
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}
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}
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class BeatCounterStatus extends Bundle {
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val idx = UInt()
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val done = Bool()
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}
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class TwoWayBeatCounterStatus extends Bundle {
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val pending = Bool()
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val up = new BeatCounterStatus()
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val down = new BeatCounterStatus()
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}
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/** Utility trait containing wiring functions to keep track of how many data beats have
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* been sent or recieved over a particular [[uncore.TileLinkChannel]] or pair of channels.
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*
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* Won't count message types that don't have data.
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* Used in [[uncore.XactTracker]] and [[uncore.FinishUnit]].
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*/
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trait HasDataBeatCounters {
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type HasBeat = TileLinkChannel with HasTileLinkBeatId
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type HasId = TileLinkChannel with HasClientId
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/** Returns the current count on this channel and when a message is done
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* @param inc increment the counter (usually .valid or .fire())
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* @param data the actual channel data
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* @param beat count to return for single-beat messages
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*/
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def connectDataBeatCounter[S <: TileLinkChannel](inc: Bool, data: S, beat: UInt) = {
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val multi = data.hasMultibeatData()
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val (multi_cnt, multi_done) = Counter(inc && multi, data.tlDataBeats)
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val cnt = Mux(multi, multi_cnt, beat)
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val done = Mux(multi, multi_done, inc)
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(cnt, done)
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}
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/** Counter for beats on outgoing [[chisel.DecoupledIO]] */
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def connectOutgoingDataBeatCounter[T <: TileLinkChannel](
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out: DecoupledIO[T],
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beat: UInt = UInt(0)): (UInt, Bool) =
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connectDataBeatCounter(out.fire(), out.bits, beat)
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/** Returns done but not cnt. Use the addr_beat subbundle instead of cnt for beats on
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* incoming channels in case of network reordering.
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*/
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def connectIncomingDataBeatCounter[T <: TileLinkChannel](in: DecoupledIO[T]): Bool =
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connectDataBeatCounter(in.fire(), in.bits, UInt(0))._2
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/** Counter for beats on incoming DecoupledIO[LogicalNetworkIO[]]s returns done */
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def connectIncomingDataBeatCounterWithHeader[T <: TileLinkChannel](in: DecoupledIO[LogicalNetworkIO[T]]): Bool =
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connectDataBeatCounter(in.fire(), in.bits.payload, UInt(0))._2
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/** If the network might interleave beats from different messages, we need a Vec of counters,
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* one for every outstanding message id that might be interleaved.
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*
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* @param getId mapping from Message to counter id
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*/
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def connectIncomingDataBeatCountersWithHeader[T <: TileLinkChannel with HasClientTransactionId](
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in: DecoupledIO[LogicalNetworkIO[T]],
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entries: Int,
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getId: LogicalNetworkIO[T] => UInt): Vec[Bool] = {
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Vec((0 until entries).map { i =>
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connectDataBeatCounter(in.fire() && getId(in.bits) === UInt(i), in.bits.payload, UInt(0))._2
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})
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}
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/** Provides counters on two channels, as well a meta-counter that tracks how many
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* messages have been sent over the up channel but not yet responded to over the down channel
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*
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* @param status bundle of status of the counters
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* @param up outgoing channel
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* @param down incoming channel
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* @param max max number of outstanding ups with no down
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* @param beat overrides cnts on single-beat messages
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* @param track whether up's message should be tracked
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* @return a tuple containing whether their are outstanding messages, up's count,
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* up's done, down's count, down's done
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*/
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def connectTwoWayBeatCounters[T <: TileLinkChannel, S <: TileLinkChannel](
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status: TwoWayBeatCounterStatus,
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up: DecoupledIO[T],
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down: DecoupledIO[S],
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max: Int = 1,
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beat: UInt = UInt(0),
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trackUp: T => Bool = (t: T) => Bool(true),
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trackDown: S => Bool = (s: S) => Bool(true)) {
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val (up_idx, up_done) = connectDataBeatCounter(up.fire() && trackUp(up.bits), up.bits, beat)
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val (dn_idx, dn_done) = connectDataBeatCounter(down.fire() && trackDown(down.bits), down.bits, beat)
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val cnt = TwoWayCounter(up_done, dn_done, max)
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status.pending := cnt > UInt(0)
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status.up.idx := up_idx
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status.up.done := up_done
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status.down.idx := dn_idx
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status.down.done := dn_done
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}
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}
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class ClientTileLinkIOUnwrapper(implicit p: Parameters) extends TLModule()(p) {
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val io = new Bundle {
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val in = new ClientTileLinkIO().flip
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val out = new ClientUncachedTileLinkIO
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}
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val acqArb = Module(new LockingRRArbiter(new Acquire, 2, tlDataBeats,
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Some((acq: Acquire) => acq.hasMultibeatData())))
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val acqRoq = Module(new ReorderQueue(
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Bool(), tlClientXactIdBits, tlMaxClientsPerPort))
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val relRoq = Module(new ReorderQueue(
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Bool(), tlClientXactIdBits, tlMaxClientsPerPort))
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val iacq = io.in.acquire.bits
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val irel = io.in.release.bits
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val ognt = io.out.grant.bits
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val acq_roq_enq = iacq.first()
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val rel_roq_enq = irel.first()
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val acq_roq_ready = !acq_roq_enq || acqRoq.io.enq.ready
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val rel_roq_ready = !rel_roq_enq || relRoq.io.enq.ready
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val acq_helper = DecoupledHelper(
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io.in.acquire.valid,
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acq_roq_ready,
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acqArb.io.in(0).ready)
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val rel_helper = DecoupledHelper(
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io.in.release.valid,
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rel_roq_ready,
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acqArb.io.in(1).ready)
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acqRoq.io.enq.valid := acq_helper.fire(acq_roq_ready, acq_roq_enq)
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acqRoq.io.enq.bits.data := iacq.isBuiltInType()
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acqRoq.io.enq.bits.tag := iacq.client_xact_id
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acqArb.io.in(0).valid := acq_helper.fire(acqArb.io.in(0).ready)
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acqArb.io.in(0).bits := Acquire(
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is_builtin_type = Bool(true),
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a_type = Mux(iacq.isBuiltInType(),
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iacq.a_type, Acquire.getBlockType),
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client_xact_id = iacq.client_xact_id,
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addr_block = iacq.addr_block,
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addr_beat = iacq.addr_beat,
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data = iacq.data,
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union = Mux(iacq.isBuiltInType(),
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iacq.union, Cat(MT_Q, M_XRD, Bool(true))))
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io.in.acquire.ready := acq_helper.fire(io.in.acquire.valid)
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relRoq.io.enq.valid := rel_helper.fire(rel_roq_ready, rel_roq_enq)
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relRoq.io.enq.bits.data := irel.isVoluntary()
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relRoq.io.enq.bits.tag := irel.client_xact_id
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acqArb.io.in(1).valid := rel_helper.fire(acqArb.io.in(1).ready)
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acqArb.io.in(1).bits := PutBlock(
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client_xact_id = irel.client_xact_id,
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addr_block = irel.addr_block,
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addr_beat = irel.addr_beat,
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data = irel.data,
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wmask = Acquire.fullWriteMask)
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io.in.release.ready := rel_helper.fire(io.in.release.valid)
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io.out.acquire <> acqArb.io.out
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val grant_deq_roq = io.out.grant.fire() && ognt.last()
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acqRoq.io.deq.valid := acqRoq.io.deq.matches && grant_deq_roq
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acqRoq.io.deq.tag := ognt.client_xact_id
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relRoq.io.deq.valid := !acqRoq.io.deq.matches && grant_deq_roq
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relRoq.io.deq.tag := ognt.client_xact_id
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assert(!grant_deq_roq || acqRoq.io.deq.matches || relRoq.io.deq.matches,
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"TileLink Unwrapper: client_xact_id mismatch")
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val gnt_builtin = acqRoq.io.deq.data
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val gnt_voluntary = relRoq.io.deq.data
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val acq_grant = Grant(
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is_builtin_type = gnt_builtin,
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g_type = Mux(gnt_builtin, ognt.g_type, tlCoh.getExclusiveGrantType),
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client_xact_id = ognt.client_xact_id,
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manager_xact_id = ognt.manager_xact_id,
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addr_beat = ognt.addr_beat,
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data = ognt.data)
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assert(!io.in.release.valid || io.in.release.bits.isVoluntary(), "Unwrapper can only process voluntary releases.")
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val rel_grant = Grant(
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is_builtin_type = Bool(true),
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g_type = Grant.voluntaryAckType, // We should only every be working with voluntary releases
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client_xact_id = ognt.client_xact_id,
|
|
manager_xact_id = ognt.manager_xact_id,
|
|
addr_beat = ognt.addr_beat,
|
|
data = ognt.data)
|
|
|
|
io.in.grant.valid := io.out.grant.valid
|
|
io.in.grant.bits := Mux(acqRoq.io.deq.matches, acq_grant, rel_grant)
|
|
io.out.grant.ready := io.in.grant.ready
|
|
|
|
io.in.probe.valid := Bool(false)
|
|
}
|
|
|
|
class NastiIOTileLinkIOIdMapper(implicit val p: Parameters) extends Module
|
|
with HasTileLinkParameters with HasNastiParameters {
|
|
val io = new Bundle {
|
|
val req = new Bundle {
|
|
val valid = Bool(INPUT)
|
|
val ready = Bool(OUTPUT)
|
|
val tl_id = UInt(INPUT, tlClientXactIdBits)
|
|
val nasti_id = UInt(OUTPUT, nastiXIdBits)
|
|
}
|
|
val resp = new Bundle {
|
|
val valid = Bool(INPUT)
|
|
val matches = Bool(OUTPUT)
|
|
val nasti_id = UInt(INPUT, nastiXIdBits)
|
|
val tl_id = UInt(OUTPUT, tlClientXactIdBits)
|
|
}
|
|
}
|
|
val tlMaxXacts = tlMaxClientXacts * tlMaxClientsPerPort
|
|
|
|
if (tlClientXactIdBits <= nastiXIdBits) {
|
|
io.req.ready := Bool(true)
|
|
io.req.nasti_id := io.req.tl_id
|
|
io.resp.matches := Bool(true)
|
|
io.resp.tl_id := io.resp.nasti_id
|
|
} else if (nastiXIdBits <= 2) {
|
|
val nQueues = 1 << nastiXIdBits
|
|
val entriesPerQueue = (tlMaxXacts - 1) / nQueues + 1
|
|
val (req_nasti_id, req_nasti_flip) = Counter(io.req.valid && io.req.ready, nQueues)
|
|
io.req.ready := Bool(false)
|
|
io.resp.matches := Bool(false)
|
|
io.resp.tl_id := UInt(0)
|
|
io.req.nasti_id := req_nasti_id
|
|
for (i <- 0 until nQueues) {
|
|
val queue = Module(new Queue(UInt(width = tlClientXactIdBits), entriesPerQueue))
|
|
queue.io.enq.valid := io.req.valid && req_nasti_id === UInt(i)
|
|
queue.io.enq.bits := io.req.tl_id
|
|
when (req_nasti_id === UInt(i)) { io.req.ready := queue.io.enq.ready }
|
|
|
|
queue.io.deq.ready := io.resp.valid && io.resp.nasti_id === UInt(i)
|
|
when (io.resp.nasti_id === UInt(i)) {
|
|
io.resp.matches := queue.io.deq.valid
|
|
io.resp.tl_id := queue.io.deq.bits
|
|
}
|
|
}
|
|
} else {
|
|
val maxNastiId = 1 << nastiXIdBits
|
|
val (req_nasti_id, req_nasti_flip) = Counter(io.req.valid && io.req.ready, maxNastiId)
|
|
val roq = Module(new ReorderQueue(
|
|
UInt(width = tlClientXactIdBits), nastiXIdBits, tlMaxXacts))
|
|
roq.io.enq.valid := io.req.valid
|
|
roq.io.enq.bits.data := io.req.tl_id
|
|
roq.io.enq.bits.tag := req_nasti_id
|
|
io.req.ready := roq.io.enq.ready
|
|
io.req.nasti_id := req_nasti_id
|
|
roq.io.deq.valid := io.resp.valid
|
|
roq.io.deq.tag := io.resp.nasti_id
|
|
io.resp.tl_id := roq.io.deq.data
|
|
io.resp.matches := roq.io.deq.matches
|
|
}
|
|
}
|
|
|
|
class NastiIOTileLinkIOConverterInfo(implicit p: Parameters) extends TLBundle()(p) {
|
|
val addr_beat = UInt(width = tlBeatAddrBits)
|
|
val subblock = Bool()
|
|
}
|
|
|
|
class NastiIOTileLinkIOConverter(implicit p: Parameters) extends TLModule()(p)
|
|
with HasNastiParameters {
|
|
val io = new Bundle {
|
|
val tl = new ClientUncachedTileLinkIO().flip
|
|
val nasti = new NastiIO
|
|
}
|
|
|
|
private def opSizeToXSize(ops: UInt) = MuxLookup(ops, UInt("b111"), Seq(
|
|
MT_B -> UInt(0),
|
|
MT_BU -> UInt(0),
|
|
MT_H -> UInt(1),
|
|
MT_HU -> UInt(1),
|
|
MT_W -> UInt(2),
|
|
MT_WU -> UInt(2),
|
|
MT_D -> UInt(3),
|
|
MT_Q -> UInt(log2Up(tlDataBytes))))
|
|
|
|
val dataBits = tlDataBits*tlDataBeats
|
|
require(tlDataBits == nastiXDataBits, "Data sizes between LLC and MC don't agree") // TODO: remove this restriction
|
|
require(tlDataBeats < (1 << nastiXLenBits), "Can't have that many beats")
|
|
|
|
val has_data = io.tl.acquire.bits.hasData()
|
|
|
|
val is_subblock = io.tl.acquire.bits.isSubBlockType()
|
|
val is_multibeat = io.tl.acquire.bits.hasMultibeatData()
|
|
val (tl_cnt_out, tl_wrap_out) = Counter(
|
|
io.tl.acquire.fire() && is_multibeat, tlDataBeats)
|
|
|
|
val get_valid = io.tl.acquire.valid && !has_data
|
|
val put_valid = io.tl.acquire.valid && has_data
|
|
|
|
val tlMaxXacts = tlMaxClientXacts * tlMaxClientsPerPort
|
|
|
|
// Reorder queue saves extra information needed to send correct
|
|
// grant back to TL client
|
|
val roq = Module(new ReorderQueue(
|
|
new NastiIOTileLinkIOConverterInfo, nastiRIdBits, tlMaxXacts))
|
|
|
|
val get_id_mapper = Module(new NastiIOTileLinkIOIdMapper)
|
|
val put_id_mapper = Module(new NastiIOTileLinkIOIdMapper)
|
|
|
|
val get_id_ready = get_id_mapper.io.req.ready
|
|
val put_id_mask = is_subblock || io.tl.acquire.bits.addr_beat === UInt(0)
|
|
val put_id_ready = put_id_mapper.io.req.ready || !put_id_mask
|
|
|
|
// For Get/GetBlock, make sure Reorder queue can accept new entry
|
|
val get_helper = DecoupledHelper(
|
|
get_valid,
|
|
roq.io.enq.ready,
|
|
io.nasti.ar.ready,
|
|
get_id_ready)
|
|
|
|
val w_inflight = Reg(init = Bool(false))
|
|
|
|
// For Put/PutBlock, make sure aw and w channel are both ready before
|
|
// we send the first beat
|
|
val aw_ready = w_inflight || io.nasti.aw.ready
|
|
val put_helper = DecoupledHelper(
|
|
put_valid,
|
|
aw_ready,
|
|
io.nasti.w.ready,
|
|
put_id_ready)
|
|
|
|
val (nasti_cnt_out, nasti_wrap_out) = Counter(
|
|
io.nasti.r.fire() && !roq.io.deq.data.subblock, tlDataBeats)
|
|
|
|
roq.io.enq.valid := get_helper.fire(roq.io.enq.ready)
|
|
roq.io.enq.bits.tag := io.nasti.ar.bits.id
|
|
roq.io.enq.bits.data.addr_beat := io.tl.acquire.bits.addr_beat
|
|
roq.io.enq.bits.data.subblock := is_subblock
|
|
roq.io.deq.valid := io.nasti.r.fire() && (nasti_wrap_out || roq.io.deq.data.subblock)
|
|
roq.io.deq.tag := io.nasti.r.bits.id
|
|
|
|
get_id_mapper.io.req.valid := get_helper.fire(get_id_ready)
|
|
get_id_mapper.io.req.tl_id := io.tl.acquire.bits.client_xact_id
|
|
get_id_mapper.io.resp.valid := io.nasti.r.fire() && io.nasti.r.bits.last
|
|
get_id_mapper.io.resp.nasti_id := io.nasti.r.bits.id
|
|
|
|
put_id_mapper.io.req.valid := put_helper.fire(put_id_ready, put_id_mask)
|
|
put_id_mapper.io.req.tl_id := io.tl.acquire.bits.client_xact_id
|
|
put_id_mapper.io.resp.valid := io.nasti.b.fire()
|
|
put_id_mapper.io.resp.nasti_id := io.nasti.b.bits.id
|
|
|
|
// Decompose outgoing TL Acquires into Nasti address and data channels
|
|
io.nasti.ar.valid := get_helper.fire(io.nasti.ar.ready)
|
|
io.nasti.ar.bits := NastiReadAddressChannel(
|
|
id = get_id_mapper.io.req.nasti_id,
|
|
addr = io.tl.acquire.bits.full_addr(),
|
|
size = Mux(is_subblock,
|
|
opSizeToXSize(io.tl.acquire.bits.op_size()),
|
|
UInt(log2Ceil(tlDataBytes))),
|
|
len = Mux(is_subblock, UInt(0), UInt(tlDataBeats - 1)))
|
|
|
|
io.nasti.aw.valid := put_helper.fire(aw_ready, !w_inflight)
|
|
io.nasti.aw.bits := NastiWriteAddressChannel(
|
|
id = put_id_mapper.io.req.nasti_id,
|
|
addr = io.tl.acquire.bits.full_addr(),
|
|
size = UInt(log2Ceil(tlDataBytes)),
|
|
len = Mux(is_multibeat, UInt(tlDataBeats - 1), UInt(0)))
|
|
|
|
io.nasti.w.valid := put_helper.fire(io.nasti.w.ready)
|
|
io.nasti.w.bits := NastiWriteDataChannel(
|
|
id = put_id_mapper.io.req.nasti_id,
|
|
data = io.tl.acquire.bits.data,
|
|
strb = io.tl.acquire.bits.wmask(),
|
|
last = tl_wrap_out || (io.tl.acquire.fire() && is_subblock))
|
|
|
|
io.tl.acquire.ready := Mux(has_data,
|
|
put_helper.fire(put_valid),
|
|
get_helper.fire(get_valid))
|
|
|
|
when (!w_inflight && io.tl.acquire.fire() && is_multibeat) {
|
|
w_inflight := Bool(true)
|
|
}
|
|
|
|
when (w_inflight) {
|
|
when (tl_wrap_out) { w_inflight := Bool(false) }
|
|
}
|
|
|
|
// Aggregate incoming NASTI responses into TL Grants
|
|
val (tl_cnt_in, tl_wrap_in) = Counter(
|
|
io.tl.grant.fire() && io.tl.grant.bits.hasMultibeatData(), tlDataBeats)
|
|
val gnt_arb = Module(new Arbiter(new GrantToDst, 2))
|
|
io.tl.grant <> gnt_arb.io.out
|
|
|
|
gnt_arb.io.in(0).valid := io.nasti.r.valid
|
|
io.nasti.r.ready := gnt_arb.io.in(0).ready
|
|
gnt_arb.io.in(0).bits := Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = Mux(roq.io.deq.data.subblock,
|
|
Grant.getDataBeatType, Grant.getDataBlockType),
|
|
client_xact_id = get_id_mapper.io.resp.tl_id,
|
|
manager_xact_id = UInt(0),
|
|
addr_beat = Mux(roq.io.deq.data.subblock, roq.io.deq.data.addr_beat, tl_cnt_in),
|
|
data = io.nasti.r.bits.data)
|
|
|
|
assert(!roq.io.deq.valid || roq.io.deq.matches,
|
|
"TL -> NASTI converter ReorderQueue: NASTI tag error")
|
|
assert(!gnt_arb.io.in(0).valid || get_id_mapper.io.resp.matches,
|
|
"TL -> NASTI ID Mapper: NASTI tag error")
|
|
|
|
gnt_arb.io.in(1).valid := io.nasti.b.valid
|
|
io.nasti.b.ready := gnt_arb.io.in(1).ready
|
|
gnt_arb.io.in(1).bits := Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = Grant.putAckType,
|
|
client_xact_id = put_id_mapper.io.resp.tl_id,
|
|
manager_xact_id = UInt(0),
|
|
addr_beat = UInt(0),
|
|
data = Bits(0))
|
|
assert(!gnt_arb.io.in(1).valid || put_id_mapper.io.resp.matches, "NASTI tag error")
|
|
|
|
assert(!io.nasti.r.valid || io.nasti.r.bits.resp === UInt(0), "NASTI read error")
|
|
assert(!io.nasti.b.valid || io.nasti.b.bits.resp === UInt(0), "NASTI write error")
|
|
}
|
|
|
|
class TileLinkIONastiIOConverter(implicit p: Parameters) extends TLModule()(p)
|
|
with HasNastiParameters {
|
|
val io = new Bundle {
|
|
val nasti = (new NastiIO).flip
|
|
val tl = new ClientUncachedTileLinkIO
|
|
}
|
|
|
|
val (s_idle :: s_put :: Nil) = Enum(Bits(), 2)
|
|
val state = Reg(init = s_idle)
|
|
|
|
private val blockOffset = tlByteAddrBits + tlBeatAddrBits
|
|
|
|
val aw_req = Reg(new NastiWriteAddressChannel)
|
|
|
|
def is_singlebeat(chan: NastiAddressChannel): Bool =
|
|
chan.len === UInt(0)
|
|
|
|
def is_multibeat(chan: NastiAddressChannel): Bool =
|
|
chan.len === UInt(tlDataBeats - 1) && chan.size === UInt(log2Up(tlDataBytes))
|
|
|
|
def nasti_addr_block(chan: NastiAddressChannel): UInt =
|
|
chan.addr(nastiXAddrBits - 1, blockOffset)
|
|
|
|
def nasti_addr_beat(chan: NastiAddressChannel): UInt =
|
|
chan.addr(blockOffset - 1, tlByteAddrBits)
|
|
|
|
def nasti_addr_byte(chan: NastiAddressChannel): UInt =
|
|
chan.addr(tlByteAddrBits - 1, 0)
|
|
|
|
def nasti_operand_size(chan: NastiAddressChannel): UInt =
|
|
MuxLookup(chan.size, MT_Q, Seq(
|
|
UInt(0) -> MT_BU,
|
|
UInt(1) -> MT_HU,
|
|
UInt(2) -> MT_WU,
|
|
UInt(3) -> MT_D))
|
|
|
|
def size_mask(size: UInt): UInt =
|
|
(UInt(1) << (UInt(1) << size)) - UInt(1)
|
|
|
|
def nasti_wmask(aw: NastiWriteAddressChannel, w: NastiWriteDataChannel): UInt = {
|
|
val base = w.strb & size_mask(aw.size)
|
|
val addr_byte = nasti_addr_byte(aw)
|
|
w.strb & (size_mask(aw.size) << addr_byte)
|
|
}
|
|
|
|
def tl_last(gnt: GrantMetadata): Bool =
|
|
!gnt.hasMultibeatData() || gnt.addr_beat === UInt(tlDataBeats - 1)
|
|
|
|
def tl_b_grant(gnt: GrantMetadata): Bool =
|
|
gnt.g_type === Grant.putAckType
|
|
|
|
assert(!io.nasti.ar.valid ||
|
|
is_singlebeat(io.nasti.ar.bits) || is_multibeat(io.nasti.ar.bits),
|
|
"NASTI read transaction cannot convert to TileLInk")
|
|
|
|
assert(!io.nasti.aw.valid ||
|
|
is_singlebeat(io.nasti.aw.bits) || is_multibeat(io.nasti.aw.bits),
|
|
"NASTI write transaction cannot convert to TileLInk")
|
|
|
|
val put_count = Reg(init = UInt(0, tlBeatAddrBits))
|
|
|
|
when (io.nasti.aw.fire()) {
|
|
aw_req := io.nasti.aw.bits
|
|
state := s_put
|
|
}
|
|
|
|
when (io.nasti.w.fire()) {
|
|
put_count := put_count + UInt(1)
|
|
when (io.nasti.w.bits.last) {
|
|
put_count := UInt(0)
|
|
state := s_idle
|
|
}
|
|
}
|
|
|
|
val get_acquire = Mux(is_multibeat(io.nasti.ar.bits),
|
|
GetBlock(
|
|
client_xact_id = io.nasti.ar.bits.id,
|
|
addr_block = nasti_addr_block(io.nasti.ar.bits)),
|
|
Get(
|
|
client_xact_id = io.nasti.ar.bits.id,
|
|
addr_block = nasti_addr_block(io.nasti.ar.bits),
|
|
addr_beat = nasti_addr_beat(io.nasti.ar.bits),
|
|
addr_byte = nasti_addr_byte(io.nasti.ar.bits),
|
|
operand_size = nasti_operand_size(io.nasti.ar.bits),
|
|
alloc = Bool(false)))
|
|
|
|
val put_acquire = Mux(is_multibeat(aw_req),
|
|
PutBlock(
|
|
client_xact_id = aw_req.id,
|
|
addr_block = nasti_addr_block(aw_req),
|
|
addr_beat = put_count,
|
|
data = io.nasti.w.bits.data,
|
|
wmask = io.nasti.w.bits.strb),
|
|
Put(
|
|
client_xact_id = aw_req.id,
|
|
addr_block = nasti_addr_block(aw_req),
|
|
addr_beat = nasti_addr_beat(aw_req),
|
|
data = io.nasti.w.bits.data,
|
|
wmask = nasti_wmask(aw_req, io.nasti.w.bits)))
|
|
|
|
io.tl.acquire.bits := Mux(state === s_put, put_acquire, get_acquire)
|
|
io.tl.acquire.valid := (state === s_idle && io.nasti.ar.valid) ||
|
|
(state === s_put && io.nasti.w.valid)
|
|
io.nasti.ar.ready := (state === s_idle && io.tl.acquire.ready)
|
|
io.nasti.aw.ready := (state === s_idle && !io.nasti.ar.valid)
|
|
io.nasti.w.ready := (state === s_put && io.tl.acquire.ready)
|
|
|
|
val nXacts = tlMaxClientXacts * tlMaxClientsPerPort
|
|
|
|
io.nasti.b.valid := io.tl.grant.valid && tl_b_grant(io.tl.grant.bits)
|
|
io.nasti.b.bits := NastiWriteResponseChannel(
|
|
id = io.tl.grant.bits.client_xact_id)
|
|
|
|
io.nasti.r.valid := io.tl.grant.valid && !tl_b_grant(io.tl.grant.bits)
|
|
io.nasti.r.bits := NastiReadDataChannel(
|
|
id = io.tl.grant.bits.client_xact_id,
|
|
data = io.tl.grant.bits.data,
|
|
last = tl_last(io.tl.grant.bits))
|
|
|
|
io.tl.grant.ready := Mux(tl_b_grant(io.tl.grant.bits),
|
|
io.nasti.b.ready, io.nasti.r.ready)
|
|
}
|
|
|
|
object TileLinkWidthAdapter {
|
|
def apply(in: ClientUncachedTileLinkIO, out: ClientUncachedTileLinkIO)(implicit p: Parameters): Unit = {
|
|
require(out.tlDataBits * out.tlDataBeats == in.tlDataBits * in.tlDataBeats)
|
|
|
|
if (out.tlDataBits > in.tlDataBits) {
|
|
val widener = Module(new TileLinkIOWidener(in.p(TLId), out.p(TLId)))
|
|
widener.io.in <> in
|
|
out <> widener.io.out
|
|
} else if (out.tlDataBits < in.tlDataBits) {
|
|
val narrower = Module(new TileLinkIONarrower(in.p(TLId), out.p(TLId)))
|
|
narrower.io.in <> in
|
|
out <> narrower.io.out
|
|
} else {
|
|
out <> in
|
|
}
|
|
}
|
|
}
|
|
|
|
class TileLinkIOWidener(innerTLId: String, outerTLId: String)
|
|
(implicit p: Parameters) extends TLModule()(p) {
|
|
|
|
val paddrBits = p(PAddrBits)
|
|
val innerParams = p(TLKey(innerTLId))
|
|
val outerParams = p(TLKey(outerTLId))
|
|
val innerDataBeats = innerParams.dataBeats
|
|
val innerDataBits = innerParams.dataBitsPerBeat
|
|
val innerWriteMaskBits = innerParams.writeMaskBits
|
|
val innerByteAddrBits = log2Up(innerWriteMaskBits)
|
|
val innerMaxXacts = innerParams.maxClientXacts * innerParams.maxClientsPerPort
|
|
val innerXactIdBits = log2Up(innerMaxXacts)
|
|
val outerDataBeats = outerParams.dataBeats
|
|
val outerDataBits = outerParams.dataBitsPerBeat
|
|
val outerWriteMaskBits = outerParams.writeMaskBits
|
|
val outerByteAddrBits = log2Up(outerWriteMaskBits)
|
|
val outerBeatAddrBits = log2Up(outerDataBeats)
|
|
val outerBlockOffset = outerBeatAddrBits + outerByteAddrBits
|
|
val outerMaxClients = outerParams.maxClientsPerPort
|
|
val outerClientIdBits = log2Up(outerParams.maxClientXacts * outerMaxClients)
|
|
val outerManagerIdBits = log2Up(outerParams.maxManagerXacts)
|
|
val outerBlockAddrBits = paddrBits - outerBlockOffset
|
|
|
|
require(outerDataBeats <= innerDataBeats)
|
|
require(outerDataBits >= innerDataBits)
|
|
require(outerDataBits % innerDataBits == 0)
|
|
require(outerDataBits * outerDataBeats == innerDataBits * innerDataBeats)
|
|
|
|
val factor = innerDataBeats / outerDataBeats
|
|
|
|
val io = new Bundle {
|
|
val in = new ClientUncachedTileLinkIO()(p.alterPartial({case TLId => innerTLId})).flip
|
|
val out = new ClientUncachedTileLinkIO()(p.alterPartial({case TLId => outerTLId}))
|
|
}
|
|
|
|
val iacq = io.in.acquire.bits
|
|
val ognt = io.out.grant.bits
|
|
val ignt = io.in.grant.bits
|
|
|
|
val shrink = iacq.a_type === Acquire.putBlockType
|
|
val stretch = ognt.g_type === Grant.getDataBlockType
|
|
val smallget = iacq.a_type === Acquire.getType
|
|
val smallput = iacq.a_type === Acquire.putType
|
|
val smallgnt = ognt.g_type === Grant.getDataBeatType
|
|
|
|
val sending_put = Reg(init = Bool(false))
|
|
val collecting = Reg(init = Bool(false))
|
|
val put_block = Reg(UInt(width = outerBlockAddrBits))
|
|
val put_id = Reg(UInt(width = outerClientIdBits))
|
|
val put_data = Reg(Vec(factor, UInt(width = innerDataBits)))
|
|
val put_wmask = Reg(Vec(factor, UInt(width = innerWriteMaskBits)))
|
|
val put_allocate = Reg(Bool())
|
|
val (put_beat, put_done) = Counter(io.out.acquire.fire() && iacq.hasMultibeatData(), outerDataBeats)
|
|
val (recv_idx, recv_done) = Counter(io.in.acquire.fire() && iacq.hasMultibeatData(), factor)
|
|
|
|
val in_addr = iacq.full_addr()
|
|
val out_addr_block = in_addr(paddrBits - 1, outerBlockOffset)
|
|
val out_addr_beat = in_addr(outerBlockOffset - 1, outerByteAddrBits)
|
|
val out_addr_byte = in_addr(outerByteAddrBits - 1, 0)
|
|
|
|
val switch_addr = in_addr(outerByteAddrBits - 1, innerByteAddrBits)
|
|
val smallget_switch = Reg(Vec(innerMaxXacts, switch_addr))
|
|
|
|
def align_data(addr: UInt, data: UInt): UInt =
|
|
data << Cat(addr, UInt(0, log2Up(innerDataBits)))
|
|
|
|
def align_wmask(addr: UInt, wmask: UInt): UInt =
|
|
wmask << Cat(addr, UInt(0, log2Up(innerWriteMaskBits)))
|
|
|
|
val get_acquire = Get(
|
|
client_xact_id = iacq.client_xact_id,
|
|
addr_block = out_addr_block,
|
|
addr_beat = out_addr_beat,
|
|
addr_byte = out_addr_byte,
|
|
operand_size = iacq.op_size(),
|
|
alloc = iacq.allocate())
|
|
|
|
val get_block_acquire = GetBlock(
|
|
client_xact_id = iacq.client_xact_id,
|
|
addr_block = out_addr_block,
|
|
alloc = iacq.allocate())
|
|
|
|
val put_acquire = Put(
|
|
client_xact_id = iacq.client_xact_id,
|
|
addr_block = out_addr_block,
|
|
addr_beat = out_addr_beat,
|
|
data = align_data(switch_addr, iacq.data),
|
|
wmask = align_wmask(switch_addr, iacq.wmask()),
|
|
alloc = iacq.allocate())
|
|
|
|
val put_block_acquire = PutBlock(
|
|
client_xact_id = put_id,
|
|
addr_block = put_block,
|
|
addr_beat = put_beat,
|
|
data = put_data.toBits,
|
|
wmask = put_wmask.toBits)
|
|
|
|
io.out.acquire.valid := sending_put || (!shrink && io.in.acquire.valid)
|
|
io.out.acquire.bits := MuxCase(get_block_acquire, Seq(
|
|
sending_put -> put_block_acquire,
|
|
smallget -> get_acquire,
|
|
smallput -> put_acquire))
|
|
io.in.acquire.ready := !sending_put && (shrink || io.out.acquire.ready)
|
|
|
|
when (io.in.acquire.fire() && shrink) {
|
|
when (!collecting) {
|
|
put_block := out_addr_block
|
|
put_id := iacq.client_xact_id
|
|
put_allocate := iacq.allocate()
|
|
collecting := Bool(true)
|
|
}
|
|
put_data(recv_idx) := iacq.data
|
|
put_wmask(recv_idx) := iacq.wmask()
|
|
}
|
|
|
|
when (io.in.acquire.fire() && smallget) {
|
|
smallget_switch(iacq.client_xact_id) := switch_addr
|
|
}
|
|
|
|
when (recv_done) { sending_put := Bool(true) }
|
|
when (sending_put && io.out.acquire.ready) { sending_put := Bool(false) }
|
|
when (put_done) { collecting := Bool(false) }
|
|
|
|
val returning_data = Reg(init = Bool(false))
|
|
val (send_idx, send_done) = Counter(
|
|
io.in.grant.ready && returning_data, factor)
|
|
|
|
val gnt_beat = Reg(UInt(width = outerBeatAddrBits))
|
|
val gnt_client_id = Reg(UInt(width = outerClientIdBits))
|
|
val gnt_manager_id = Reg(UInt(width = outerManagerIdBits))
|
|
val gnt_data = Reg(UInt(width = outerDataBits))
|
|
|
|
when (io.out.grant.fire() && stretch) {
|
|
gnt_data := ognt.data
|
|
gnt_client_id := ognt.client_xact_id
|
|
gnt_manager_id := ognt.manager_xact_id
|
|
gnt_beat := ognt.addr_beat
|
|
returning_data := Bool(true)
|
|
}
|
|
|
|
when (send_done) { returning_data := Bool(false) }
|
|
|
|
def select_data(data: UInt, sel: UInt): UInt =
|
|
data >> (sel << log2Up(innerDataBits))
|
|
|
|
val gnt_switch = smallget_switch(ognt.client_xact_id)
|
|
|
|
val get_block_grant = Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = Grant.getDataBlockType,
|
|
client_xact_id = gnt_client_id,
|
|
manager_xact_id = gnt_manager_id,
|
|
addr_beat = Cat(gnt_beat, send_idx),
|
|
data = select_data(gnt_data, send_idx))
|
|
|
|
val get_grant = Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = Grant.getDataBeatType,
|
|
client_xact_id = ognt.client_xact_id,
|
|
manager_xact_id = ognt.manager_xact_id,
|
|
addr_beat = Cat(ognt.addr_beat, gnt_switch),
|
|
data = select_data(ognt.data, gnt_switch))
|
|
|
|
val default_grant = Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = ognt.g_type,
|
|
client_xact_id = ognt.client_xact_id,
|
|
manager_xact_id = ognt.manager_xact_id,
|
|
addr_beat = ognt.addr_beat,
|
|
data = ognt.data)
|
|
|
|
io.in.grant.valid := returning_data || (!stretch && io.out.grant.valid)
|
|
io.in.grant.bits := MuxCase(default_grant, Seq(
|
|
returning_data -> get_block_grant,
|
|
smallgnt -> get_grant))
|
|
io.out.grant.ready := !returning_data && (stretch || io.in.grant.ready)
|
|
}
|
|
|
|
class TileLinkIONarrower(innerTLId: String, outerTLId: String)
|
|
(implicit p: Parameters) extends TLModule()(p) {
|
|
|
|
val innerParams = p(TLKey(innerTLId))
|
|
val outerParams = p(TLKey(outerTLId))
|
|
val innerDataBeats = innerParams.dataBeats
|
|
val innerDataBits = innerParams.dataBitsPerBeat
|
|
val innerWriteMaskBits = innerParams.writeMaskBits
|
|
val innerByteAddrBits = log2Up(innerWriteMaskBits)
|
|
val outerDataBeats = outerParams.dataBeats
|
|
val outerDataBits = outerParams.dataBitsPerBeat
|
|
val outerWriteMaskBits = outerParams.writeMaskBits
|
|
val outerByteAddrBits = log2Up(outerWriteMaskBits)
|
|
val outerBeatAddrBits = log2Up(outerDataBeats)
|
|
val outerBlockOffset = outerBeatAddrBits + outerByteAddrBits
|
|
val outerMaxClients = outerParams.maxClientsPerPort
|
|
val outerIdBits = log2Up(outerParams.maxClientXacts * outerMaxClients)
|
|
|
|
require(outerDataBeats > innerDataBeats)
|
|
require(outerDataBeats % innerDataBeats == 0)
|
|
require(outerDataBits < innerDataBits)
|
|
require(outerDataBits * outerDataBeats == innerDataBits * innerDataBeats)
|
|
|
|
val factor = outerDataBeats / innerDataBeats
|
|
|
|
val io = new Bundle {
|
|
val in = new ClientUncachedTileLinkIO()(p.alterPartial({case TLId => innerTLId})).flip
|
|
val out = new ClientUncachedTileLinkIO()(p.alterPartial({case TLId => outerTLId}))
|
|
}
|
|
|
|
val iacq = io.in.acquire.bits
|
|
val ognt = io.out.grant.bits
|
|
|
|
val stretch = iacq.a_type === Acquire.putBlockType
|
|
val shrink = iacq.a_type === Acquire.getBlockType
|
|
val smallput = iacq.a_type === Acquire.putType
|
|
val smallget = iacq.a_type === Acquire.getType
|
|
|
|
val acq_data_buffer = Reg(UInt(width = innerDataBits))
|
|
val acq_wmask_buffer = Reg(UInt(width = innerWriteMaskBits))
|
|
val acq_client_id = Reg(iacq.client_xact_id)
|
|
val acq_addr_block = Reg(iacq.addr_block)
|
|
val acq_addr_beat = Reg(iacq.addr_beat)
|
|
val oacq_ctr = Counter(factor)
|
|
|
|
val outer_beat_addr = iacq.full_addr()(outerBlockOffset - 1, outerByteAddrBits)
|
|
val outer_byte_addr = iacq.full_addr()(outerByteAddrBits - 1, 0)
|
|
|
|
val mask_chunks = Vec.tabulate(factor) { i =>
|
|
val lsb = i * outerWriteMaskBits
|
|
val msb = (i + 1) * outerWriteMaskBits - 1
|
|
iacq.wmask()(msb, lsb)
|
|
}
|
|
|
|
val data_chunks = Vec.tabulate(factor) { i =>
|
|
val lsb = i * outerDataBits
|
|
val msb = (i + 1) * outerDataBits - 1
|
|
iacq.data(msb, lsb)
|
|
}
|
|
|
|
val beat_sel = Cat(mask_chunks.map(mask => mask.orR).reverse)
|
|
|
|
val smallput_data = Mux1H(beat_sel, data_chunks)
|
|
val smallput_wmask = Mux1H(beat_sel, mask_chunks)
|
|
val smallput_beat = Cat(iacq.addr_beat, PriorityEncoder(beat_sel))
|
|
|
|
assert(!io.in.acquire.valid || !smallput || PopCount(beat_sel) <= UInt(1),
|
|
"Can't perform Put wider than outer width")
|
|
|
|
val read_size_ok = MuxLookup(iacq.op_size(), Bool(false), Seq(
|
|
MT_B -> Bool(true),
|
|
MT_BU -> Bool(true),
|
|
MT_H -> Bool(outerDataBits >= 16),
|
|
MT_HU -> Bool(outerDataBits >= 16),
|
|
MT_W -> Bool(outerDataBits >= 32),
|
|
MT_WU -> Bool(outerDataBits >= 32),
|
|
MT_D -> Bool(outerDataBits >= 64),
|
|
MT_Q -> Bool(false)))
|
|
|
|
assert(!io.in.acquire.valid || !smallget || read_size_ok,
|
|
"Can't perform Get wider than outer width")
|
|
|
|
val outerConfig = p.alterPartial({ case TLId => outerTLId })
|
|
val innerConfig = p.alterPartial({ case TLId => innerTLId })
|
|
|
|
val get_block_acquire = GetBlock(
|
|
client_xact_id = iacq.client_xact_id,
|
|
addr_block = iacq.addr_block,
|
|
alloc = iacq.allocate())(outerConfig)
|
|
|
|
val put_block_acquire = PutBlock(
|
|
client_xact_id = acq_client_id,
|
|
addr_block = acq_addr_block,
|
|
addr_beat = if (factor > 1)
|
|
Cat(acq_addr_beat, oacq_ctr.value)
|
|
else acq_addr_beat,
|
|
data = acq_data_buffer(outerDataBits - 1, 0),
|
|
wmask = acq_wmask_buffer(outerWriteMaskBits - 1, 0))(outerConfig)
|
|
|
|
val get_acquire = Get(
|
|
client_xact_id = iacq.client_xact_id,
|
|
addr_block = iacq.addr_block,
|
|
addr_beat = outer_beat_addr,
|
|
addr_byte = outer_byte_addr,
|
|
operand_size = iacq.op_size(),
|
|
alloc = iacq.allocate())(outerConfig)
|
|
|
|
val put_acquire = Put(
|
|
client_xact_id = iacq.client_xact_id,
|
|
addr_block = iacq.addr_block,
|
|
addr_beat = smallput_beat,
|
|
data = smallput_data,
|
|
wmask = Some(smallput_wmask))(outerConfig)
|
|
|
|
val sending_put = Reg(init = Bool(false))
|
|
|
|
val pass_valid = io.in.acquire.valid && !stretch
|
|
|
|
io.out.acquire.bits := MuxCase(Wire(io.out.acquire.bits, init=iacq), Seq(
|
|
(sending_put, put_block_acquire),
|
|
(shrink, get_block_acquire),
|
|
(smallput, put_acquire),
|
|
(smallget, get_acquire)))
|
|
io.out.acquire.valid := sending_put || pass_valid
|
|
io.in.acquire.ready := !sending_put && (stretch || io.out.acquire.ready)
|
|
|
|
when (io.in.acquire.fire() && stretch) {
|
|
acq_data_buffer := iacq.data
|
|
acq_wmask_buffer := iacq.wmask()
|
|
acq_client_id := iacq.client_xact_id
|
|
acq_addr_block := iacq.addr_block
|
|
acq_addr_beat := iacq.addr_beat
|
|
sending_put := Bool(true)
|
|
}
|
|
|
|
when (sending_put && io.out.acquire.ready) {
|
|
acq_data_buffer := acq_data_buffer >> outerDataBits
|
|
acq_wmask_buffer := acq_wmask_buffer >> outerWriteMaskBits
|
|
when (oacq_ctr.inc()) { sending_put := Bool(false) }
|
|
}
|
|
|
|
val ognt_block = ognt.hasMultibeatData()
|
|
val gnt_data_buffer = Reg(Vec(factor, UInt(width = outerDataBits)))
|
|
val gnt_client_id = Reg(ognt.client_xact_id)
|
|
val gnt_manager_id = Reg(ognt.manager_xact_id)
|
|
|
|
val ignt_ctr = Counter(innerDataBeats)
|
|
val ognt_ctr = Counter(factor)
|
|
val sending_get = Reg(init = Bool(false))
|
|
|
|
val get_block_grant = Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = Grant.getDataBlockType,
|
|
client_xact_id = gnt_client_id,
|
|
manager_xact_id = gnt_manager_id,
|
|
addr_beat = ignt_ctr.value,
|
|
data = gnt_data_buffer.toBits)(innerConfig)
|
|
|
|
val smallget_grant = ognt.g_type === Grant.getDataBeatType
|
|
|
|
val get_grant = Grant(
|
|
is_builtin_type = Bool(true),
|
|
g_type = Grant.getDataBeatType,
|
|
client_xact_id = ognt.client_xact_id,
|
|
manager_xact_id = ognt.manager_xact_id,
|
|
addr_beat = ognt.addr_beat >> UInt(log2Up(factor)),
|
|
data = Fill(factor, ognt.data))(innerConfig)
|
|
|
|
io.in.grant.valid := sending_get || (io.out.grant.valid && !ognt_block)
|
|
io.out.grant.ready := !sending_get && (ognt_block || io.in.grant.ready)
|
|
|
|
io.in.grant.bits := MuxCase(Wire(io.in.grant.bits, init=ognt), Seq(
|
|
sending_get -> get_block_grant,
|
|
smallget_grant -> get_grant))
|
|
|
|
when (io.out.grant.valid && ognt_block && !sending_get) {
|
|
gnt_data_buffer(ognt_ctr.value) := ognt.data
|
|
when (ognt_ctr.inc()) {
|
|
gnt_client_id := ognt.client_xact_id
|
|
gnt_manager_id := ognt.manager_xact_id
|
|
sending_get := Bool(true)
|
|
}
|
|
}
|
|
|
|
when (io.in.grant.ready && sending_get) {
|
|
ignt_ctr.inc()
|
|
sending_get := Bool(false)
|
|
}
|
|
}
|
|
|
|
class MMIOTileLinkManagerData(implicit p: Parameters)
|
|
extends TLBundle()(p)
|
|
with HasClientId
|
|
with HasClientTransactionId
|
|
|
|
class MMIOTileLinkManager(implicit p: Parameters)
|
|
extends CoherenceAgentModule()(p) {
|
|
val io = new ManagerTLIO
|
|
|
|
// MMIO requests should never need probe or release
|
|
io.inner.probe.valid := Bool(false)
|
|
io.inner.release.ready := Bool(false)
|
|
|
|
val multibeat_fire = io.outer.acquire.fire() && io.oacq().hasMultibeatData()
|
|
val multibeat_start = multibeat_fire && io.oacq().addr_beat === UInt(0)
|
|
val multibeat_end = multibeat_fire && io.oacq().addr_beat === UInt(outerDataBeats - 1)
|
|
|
|
// Acquire and Grant are basically passthru,
|
|
// except client_id and client_xact_id need to be converted.
|
|
// Associate the inner client_id and client_xact_id
|
|
// with the outer client_xact_id.
|
|
val xact_pending = Reg(init = UInt(0, maxManagerXacts))
|
|
val xact_id_sel = PriorityEncoder(~xact_pending)
|
|
val xact_id_reg = RegEnable(xact_id_sel, multibeat_start)
|
|
val xact_multibeat = Reg(init = Bool(false))
|
|
val outer_xact_id = Mux(xact_multibeat, xact_id_reg, xact_id_sel)
|
|
val xact_free = !xact_pending.andR
|
|
val xact_buffer = Reg(Vec(maxManagerXacts, new MMIOTileLinkManagerData))
|
|
|
|
io.inner.acquire.ready := io.outer.acquire.ready && xact_free
|
|
io.outer.acquire.valid := io.inner.acquire.valid && xact_free
|
|
io.outer.acquire.bits := io.inner.acquire.bits
|
|
io.outer.acquire.bits.client_xact_id := outer_xact_id
|
|
|
|
def isLastBeat[T <: TileLinkChannel with HasTileLinkBeatId](in: T): Bool =
|
|
!in.hasMultibeatData() || in.addr_beat === UInt(outerDataBeats - 1)
|
|
|
|
def addPendingBitOnAcq[T <: AcquireMetadata](in: DecoupledIO[T]): UInt =
|
|
Mux(in.fire() && isLastBeat(in.bits), UIntToOH(in.bits.client_xact_id), UInt(0))
|
|
|
|
def clearPendingBitOnGnt[T <: GrantMetadata](in: DecoupledIO[T]): UInt =
|
|
~Mux(in.fire() && isLastBeat(in.bits) && !in.bits.requiresAck(),
|
|
UIntToOH(in.bits.manager_xact_id), UInt(0))
|
|
|
|
def clearPendingBitOnFin(in: DecoupledIO[Finish]): UInt =
|
|
~Mux(in.fire(), UIntToOH(in.bits.manager_xact_id), UInt(0))
|
|
|
|
xact_pending := (xact_pending | addPendingBitOnAcq(io.outer.acquire)) &
|
|
clearPendingBitOnFin(io.inner.finish) &
|
|
clearPendingBitOnGnt(io.inner.grant)
|
|
|
|
when (io.outer.acquire.fire() && isLastBeat(io.outer.acquire.bits)) {
|
|
xact_buffer(outer_xact_id) := io.iacq()
|
|
}
|
|
|
|
when (multibeat_start) { xact_multibeat := Bool(true) }
|
|
when (multibeat_end) { xact_multibeat := Bool(false) }
|
|
|
|
val gnt_xact = xact_buffer(io.ognt().client_xact_id)
|
|
io.outer.grant.ready := io.inner.grant.ready
|
|
io.inner.grant.valid := io.outer.grant.valid
|
|
io.inner.grant.bits := io.outer.grant.bits
|
|
io.inner.grant.bits.client_id := gnt_xact.client_id
|
|
io.inner.grant.bits.client_xact_id := gnt_xact.client_xact_id
|
|
io.inner.grant.bits.manager_xact_id := io.ognt().client_xact_id
|
|
io.inner.finish.ready := Bool(true)
|
|
}
|