riscv/rocket-chip
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TileLinkIO.GrantAck -> TileLinkIO.Finish

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This commit is contained in:
Henry Cook
2014-04-26 15:17:05 -07:00
parent 3f53d532c2
commit 1163131d1e
4 changed files with 22 additions and 22 deletions
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10
uncore/src/main/scala/cache.scala
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@@ -214,9 +214,9 @@ class L2HellaCache(bankId: Int)(implicit conf: L2CacheConfig) extends CoherenceA
grant_arb.io.in zip trackerList map { case (arb, t) => arb <> t.io.client.grant }
// Free finished transactions
val ack = io.client.grant_ack
trackerList.map(_.io.client.grant_ack.valid := ack.valid)
trackerList.map(_.io.client.grant_ack.bits := ack.bits)
val ack = io.client.finish
trackerList.map(_.io.client.finish.valid := ack.valid)
trackerList.map(_.io.client.finish.bits := ack.bits)
ack.ready := Bool(true)
// Create an arbiter for the one memory port
@@ -239,7 +239,7 @@ abstract class L2XactTracker()(implicit conf: L2CacheConfig) extends Module {
val c_acq = io.client.acquire.bits
val c_rel = io.client.release.bits
val c_gnt = io.client.grant.bits
val c_ack = io.client.grant_ack.bits
val c_ack = io.client.finish.bits
val m_gnt = io.master.grant.bits
}
@@ -423,7 +423,7 @@ class L2AcquireTracker(trackerId: Int, bankId: Int)(implicit conf: L2CacheConfig
when(io.master.grant.valid && m_gnt.payload.client_xact_id === UInt(trackerId)) {
io.client.grant.valid := Bool(true)
}
when(io.client.grant_ack.valid && c_ack.payload.master_xact_id === UInt(trackerId)) {
when(io.client.finish.valid && c_ack.payload.master_xact_id === UInt(trackerId)) {
state := s_idle
}
}

8
uncore/src/main/scala/htif.scala
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@@ -154,7 +154,7 @@ class HTIF(w: Int, pcr_RESET: Int, nSCR: Int, offsetBits: Int)(implicit conf: Ti
}
mem_acked := Bool(false)
}
when (state === state_mem_finish && io.mem.grant_ack.ready) {
when (state === state_mem_finish && io.mem.finish.ready) {
state := Mux(cmd === cmd_readmem || pos === UInt(1), state_tx, state_rx)
pos := pos - UInt(1)
addr := addr + UInt(1 << offsetBits-3)
@@ -186,9 +186,9 @@ class HTIF(w: Int, pcr_RESET: Int, nSCR: Int, offsetBits: Int)(implicit conf: Ti
io.mem.acquire.bits.payload.data := mem_req_data
io.mem.acquire.bits.header.src := UInt(conf.ln.nClients) // By convention HTIF is the client with the largest id
io.mem.acquire.bits.header.dst := UInt(0) // DNC; Overwritten outside module
io.mem.grant_ack.valid := (state === state_mem_finish) && mem_needs_ack
io.mem.grant_ack.bits.payload.master_xact_id := mem_gxid
io.mem.grant_ack.bits.header.dst := mem_gsrc
io.mem.finish.valid := (state === state_mem_finish) && mem_needs_ack
io.mem.finish.bits.payload.master_xact_id := mem_gxid
io.mem.finish.bits.header.dst := mem_gsrc
io.mem.probe.ready := Bool(false)
io.mem.release.valid := Bool(false)

16
uncore/src/main/scala/tilelink.scala
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@@ -148,14 +148,14 @@ class Grant(implicit val tlconf: TileLinkConfiguration) extends MasterSourcedMes
val g_type = UInt(width = tlconf.co.grantTypeWidth)
}
class GrantAck(implicit val tlconf: TileLinkConfiguration) extends ClientSourcedMessage with HasMasterTransactionId
class Finish(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))
val finish = new DecoupledIO(new LogicalNetworkIO(new Finish))
override def clone = { new UncachedTileLinkIO().asInstanceOf[this.type] }
}
@@ -214,9 +214,9 @@ abstract class UncachedTileLinkIOArbiter(n: Int)(implicit conf: TileLinkConfigur
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 }
val finish_arb = Module(new RRArbiter(new LogicalNetworkIO(new Finish), n))
io.out.finish <> finish_arb.io.out
finish_arb.io.in zip io.in map { case (arb, req) => arb <> req.finish }
}
abstract class TileLinkIOArbiter(n: Int)(implicit conf: TileLinkConfiguration) extends TileLinkArbiterLike(n)(conf) {
@@ -233,9 +233,9 @@ abstract class TileLinkIOArbiter(n: Int)(implicit conf: TileLinkConfiguration) e
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 }
val finish_arb = Module(new RRArbiter(new LogicalNetworkIO(new Finish), n))
io.out.finish <> finish_arb.io.out
finish_arb.io.in zip io.in map { case (arb, req) => arb <> req.finish }
}
abstract trait AppendsArbiterId {

10
uncore/src/main/scala/uncore.scala
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@@ -64,9 +64,9 @@ class L2CoherenceAgent(bankId: Int)(implicit conf: L2CoherenceAgentConfiguration
grant_arb.io.in zip trackerList map { case (arb, t) => arb <> t.io.client.grant }
// Free finished transactions
val ack = io.client.grant_ack
trackerList.map(_.io.client.grant_ack.valid := ack.valid)
trackerList.map(_.io.client.grant_ack.bits := ack.bits)
val ack = io.client.finish
trackerList.map(_.io.client.finish.valid := ack.valid)
trackerList.map(_.io.client.finish.bits := ack.bits)
ack.ready := Bool(true)
// Create an arbiter for the one memory port
@@ -89,7 +89,7 @@ abstract class XactTracker()(implicit conf: L2CoherenceAgentConfiguration) exten
val c_acq = io.client.acquire.bits
val c_rel = io.client.release.bits
val c_gnt = io.client.grant.bits
val c_ack = io.client.grant_ack.bits
val c_ack = io.client.finish.bits
val m_gnt = io.master.grant.bits
}
@@ -273,7 +273,7 @@ class AcquireTracker(trackerId: Int, bankId: Int)(implicit conf: L2CoherenceAgen
when(io.master.grant.valid && m_gnt.payload.client_xact_id === UInt(trackerId)) {
io.client.grant.valid := Bool(true)
}
when(io.client.grant_ack.valid && c_ack.payload.master_xact_id === UInt(trackerId)) {
when(io.client.finish.valid && c_ack.payload.master_xact_id === UInt(trackerId)) {
state := s_idle
}
}