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This commit is contained in:
RuigeLee
2023-11-07 15:45:31 +08:00
parent 7d8a4851f9
commit 99d3490173
5 changed files with 98 additions and 94 deletions
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65
src/main/scala/Switch/DMA.scala
View File

@@ -17,13 +17,7 @@ abstract class DMAMstBase(val edgeOut: TLEdgeOut)(implicit p: Parameters) extend
class SwitchMuxIO(implicit p: Parameters) extends SwitchBundle{
val dmaMst = new MacTileLinkMasterIO
val triTx = Input ( Vec( chn, Bool()) )
val triRx = Output( Vec( chn, Bool()) )
val r_TxPtr = Input(UInt(32.W))
val r_RxPtr = Input(UInt(32.W))
val r_TxLen = Input(UInt(16.W))
val r_RxLen = Output(UInt(16.W))
val sel = Vec( chn, Flipped(new DMA_Register_Bundle) )
}
@@ -47,13 +41,18 @@ abstract class DMAMstBase(val edgeOut: TLEdgeOut)(implicit p: Parameters) extend
val dmaAValid = RegInit(false.B)
val dmaABits = Reg(new TLBundleA(edgeOut.bundle))
val dmaAddress = Reg( UInt(32.W) )
val trigRxNum = Reg(UInt((log2Ceil(chn)).W))
val trigTxNum = Reg(UInt((log2Ceil(chn)).W))
val rxLength = RegInit(0.U)
}
trait DMAMstFSM{ this: DMAMstBase =>
stateNxt :=
Mux1H(Seq(
( stateCur === stateIdle ) -> Mux( (io.triTx.foldLeft(false.B)(_|_) & io.r_TxLen > 32.U), stateTx, Mux( rxBuff.io.deq.valid, stateRx, stateIdle ) ),
( stateCur === stateIdle ) -> Mux( (0 until chn).map{i => (io.sel(i).triTx & io.sel(i).r_TxLen > 32.U)}.foldLeft(false.B)(_|_) , stateTx, Mux( rxBuff.mInfo.source.valid, stateRx, stateIdle ) ),
( stateCur === stateRx ) -> Mux( stateDMA === 0.U, stateIdle, stateRx ),
( stateCur === stateTx ) -> Mux( stateDMA === 0.U, stateIdle, stateTx ),
))
@@ -64,7 +63,7 @@ trait DMAMstFSM{ this: DMAMstBase =>
} .elsewhen( io.dmaMst.A.fire ){
stateDMA := 2.U
} .elsewhen( io.dmaMst.D.fire & isLastD ){
when( stateCur === stateTx & dmaAddress === (io.r_TxPtr + io.r_TxLen) ){
when( stateCur === stateTx & dmaAddress === (io.sel(trigTxNum).r_TxPtr + io.sel(trigTxNum).r_TxLen) ){
stateDMA := 0.U
} .elsewhen( stateCur === stateRx & ~rxBuff.io.deq.valid ){
stateDMA := 0.U
@@ -80,13 +79,28 @@ trait DMAMstTileLink{ this: DMAMstBase =>
val mInfoValid = stateCur === stateTx
when( rxBuff.mInfo.source.valid & stateCur === stateIdle & stateNxt === stateRx ){
assert( rxBuff.mInfo.source.bits(48) === 1.U )
trigRxNum := rxBuff.mInfo.source.bits
dmaAddress := io.sel(rxBuff.mInfo.source.bits( log2Ceil(chn)-1, 0 )).r_RxPtr
}
when( stateCur === stateIdle & stateNxt === stateTx ){
dmaAddress := io.r_TxPtr
} .elsewhen( stateCur === stateIdle & stateNxt === stateRx ){
dmaAddress := io.r_RxPtr
} .elsewhen( io.dmaMst.A.fire ){
for( i <- 0 until chn ){
io.sel(i).triRx := rxBuff.io.deq.fire & rxBuff.io.deq.bits.isLast & trigRxNum === i.U
io.sel(i).r_RxLen := RegEnable( rxLength + 1.U, io.sel(i).triRx )
}
for( i <- 0 until chn ){
when( io.sel(i).triTx & io.sel(i).r_TxLen > 32.U & stateCur === stateIdle ){
trigTxNum := i.U
dmaAddress := io.sel(i).r_TxPtr
assert( stateNxt === stateTx )
}
}
when( io.dmaMst.A.fire ){
dmaAddress := dmaAddress + 1.U
}
@@ -129,7 +143,7 @@ trait DMAMstTileLink{ this: DMAMstBase =>
trait DMAMstBuff{ this: DMAMstBase =>
val rxLength = RegInit(0.U)
when( rxBuff.io.deq.fire ){
when( rxBuff.io.deq.bits.isStart ){
@@ -139,32 +153,15 @@ trait DMAMstBuff{ this: DMAMstBase =>
}
}
val trigRxNum = Reg(UInt((log2Ceil(chn)).W))
when( rxBuff.mInfo.source.valid ){
assert( rxBuff.mInfo.source.bits(48) === 1.U )
trigRxNum := rxBuff.mInfo.source.bits
}
for( i <- 0 until chn ){
io.triRx(i) := rxBuff.io.deq.fire & rxBuff.io.deq.bits.isLast & trigRxNum === i.U
}
io.r_RxLen := RegEnable( rxLength, io.triRx.foldLeft(false.B)(_|_) )
txBuff.io.enq.valid := io.dmaMst.D.valid & stateCur === stateTx
txBuff.io.enq.bits.data := io.dmaMst.D.bits.data
txBuff.io.enq.bits.isStart := RegEnable( dmaAddress === io.r_TxPtr, io.dmaMst.A.fire)
txBuff.io.enq.bits.isLast := dmaAddress === (io.r_TxPtr + io.r_TxLen)
txBuff.io.enq.bits.isStart := RegEnable( dmaAddress === io.sel(trigTxNum).r_TxPtr, io.dmaMst.A.fire)
txBuff.io.enq.bits.isLast := dmaAddress === (io.sel(trigTxNum).r_TxPtr + io.sel(trigTxNum).r_TxLen)
val trigTxNum = Reg(UInt((log2Ceil(chn)).W))
val mInfoValid = stateCur === stateTx
for( i <- 0 until chn ){
when( io.triTx(i) & io.r_TxLen(i) > 32.U & stateCur === stateIdle ){
trigTxNum := i.U
}
}
}

103
src/main/scala/Switch/DMARegisters.scala
View File

@@ -9,17 +9,22 @@ import org.chipsalliance.cde.config._
import freechips.rocketchip.diplomacy._
import freechips.rocketchip.interrupts._
class DMA_Register_Bundle extends Bundle{
val r_TxPtr = Output(UInt(32.W))
val r_RxPtr = Output(UInt(32.W))
val r_TxLen = Output(UInt(16.W))
val r_RxLen = Input (UInt(16.W))
val triTx = Output( Bool())
val triRx = Input ( Bool())
}
class DmaRegIO(implicit p: Parameters) extends SwitchBundle{
val MacAddr = Output(UInt(48.W))
val r_TxPtr = Output( Vec(chn, UInt(32.W)) )
val r_RxPtr = Output( Vec(chn, UInt(32.W)) )
val r_TxLen = Output( Vec(chn, UInt(16.W)) )
val r_RxLen = Input ( Vec(chn, UInt(16.W)) )
val triTx = Output( Vec( chn, Bool()) )
val triRx = Input ( Vec( chn, Bool()) )
val sel = Vec( chn, new DMA_Register_Bundle )
}
class DmaReg(implicit p: Parameters) extends LazyModule with HasSwitchParameters{
@@ -58,17 +63,17 @@ class DmaRegImp(outer: DmaReg)(implicit p: Parameters) extends LazyModuleImp(out
val triRx = for( i <- 0 until chn ) yield { RegInit(false.B) }
for( i <- 0 until chn ) {
io.r_TxPtr(i) := txPtr(i)
io.r_RxPtr(i) := rxPtr(i)
io.r_TxLen(i) := txLen(i)
io.sel(i).r_TxPtr := txPtr(i)
io.sel(i).r_RxPtr := rxPtr(i)
io.sel(i).r_TxLen := txLen(i)
}
for( i <- 0 until chn ) { when( io.triRx(i) ) { triRx(i) := true.B } }
for( i <- 0 until chn ) { when( io.sel(i).triRx ) { triRx(i) := true.B } }
outer.configNode.regmap(
val comMap = Seq(
( 0 << 2 ) ->
RegFieldGroup("MAC_ADDR0", Some("MAC Address Register 0"), Seq(
RegField(32)
@@ -77,41 +82,49 @@ class DmaRegImp(outer: DmaReg)(implicit p: Parameters) extends LazyModuleImp(out
( 1 << 2 ) ->
RegFieldGroup("MAC_ADDR1", Some("MAC Address Register 1"), Seq(
RegField(32)
)),
// (0 until chn).map{ i =>
// ( (10*i + 10) << 2 ) ->
// RegFieldGroup("DMATrigger", Some("Tx Control DMA"), Seq(
// RegField.w(1, RegWriteFn((valid, data) => { io.triTx(i) := (valid & (data === 1.U)) ; true.B} ), RegFieldDesc("bd", s"bd$i", reset=Some(0x0))),
// RegField(1, triRx(i), RegFieldDesc("bd", s"bd$i", reset=Some(0x0)))
// ))
// }
// (0 until chn).map{ i =>
// ( (10*i + 11) << 2 ) ->
// RegFieldGroup("TxRxDMALength", Some("Tx RxControl DMA"), Seq(
// RegField(16, txLen(i), RegFieldDesc("txLen", "length of tx", reset=Some(65535))),
// RegField.r(16, io.r_RxLen(i), RegFieldDesc("rxLen", "length of rx")),
// ))
// }
// (0 until chn).map{ i =>
// ( (10*i + 12) << 2 ) ->
// RegFieldGroup("TxDMAAddress", Some("Tx Control DMA"), Seq(
// RegField(32, txPtr(i), RegFieldDesc("txPtr", "pointer of tx", reset=Some(0x80002000))),
// ))
// }
// (0 until chn).map{ i =>
// ( (10*i + 13) << 2 ) ->
// RegFieldGroup("RxDMAAddress", Some("Rx Control DMA"), Seq(
// RegField(32, rxPtr(i), RegFieldDesc("rxPtr", "pointer of rx", reset=Some(0x80002000))),
// ))
// }
))
)
val trigMap =
((0 until chn).map{ i =>
( (10*i + 10) << 2 ) ->
RegFieldGroup("DMATrigger", Some("Tx Control DMA"), Seq(
RegField.w(1, RegWriteFn((valid, data) => { io.sel(i).triTx := (valid & (data === 1.U)) ; true.B} ), RegFieldDesc("bd", s"bd$i", reset=Some(0x0))),
RegField(1, triRx(i), RegFieldDesc("bd", s"bd$i", reset=Some(0x0)))
))
})
val lenMap =
(0 until chn).map{ i =>
( (10*i + 11) << 2 ) ->
RegFieldGroup("TxRxDMALength", Some("Tx RxControl DMA"), Seq(
RegField(16, txLen(i), RegFieldDesc("txLen", "length of tx", reset=Some(65535))),
RegField.r(16, io.sel(i).r_RxLen, RegFieldDesc("rxLen", "length of rx")),
))
}
val txAddrMap =
(0 until chn).map{ i =>
( (10*i + 12) << 2 ) ->
RegFieldGroup("TxDMAAddress", Some("Tx Control DMA"), Seq(
RegField(32, txPtr(i), RegFieldDesc("txPtr", "pointer of tx", reset=Some(0x80002000))),
))
}
val rxAddrMap =
(0 until chn).map{ i =>
( (10*i + 13) << 2 ) ->
RegFieldGroup("RxDMAAddress", Some("Rx Control DMA"), Seq(
RegField(32, rxPtr(i), RegFieldDesc("rxPtr", "pointer of rx", reset=Some(0x80002000))),
))
}
val regMap = comMap ++ trigMap ++ lenMap ++ txAddrMap ++ rxAddrMap
outer.configNode.regmap(regMap: _*)

2
src/main/scala/Switch/MacRegisters.scala
View File

@@ -66,7 +66,7 @@ class MacReg(chn: Int)(implicit p: Parameters) extends LazyModule{
// DTS
val dtsdevice = new SimpleDevice(s"mac($chn)",Seq(s"mac_($chn)"))
val dtsdevice = new SimpleDevice(s"mac$chn",Seq(s"mac_$chn"))
val int_node = IntSourceNode(IntSourcePortSimple(num = 1, resources = dtsdevice.int))

12
src/main/scala/Switch/Switch.scala
View File

@@ -60,15 +60,9 @@ class SwitchImp(outer: Switch)(implicit p: Parameters) extends LazyModuleImp(out
val dmaMst = Module(new DmaNode(dma_edge))
dmaMst.io.triTx := outer.dmaReg.module.io.triTx
outer.dmaReg.module.io.triRx := dmaMst.io.triRx
dmaMst.io.sel <> outer.dmaReg.module.io.sel
dmaMst.io.r_TxPtr := outer.dmaReg.module.io.r_TxPtr
dmaMst.io.r_RxPtr := outer.dmaReg.module.io.r_RxPtr
dmaMst.io.r_TxLen := outer.dmaReg.module.io.r_TxLen
outer.dmaReg.module.io.r_RxLen := dmaMst.io.r_RxLen
dmaMst.io.dmaMst.D.bits := dma_bus.d.bits
dmaMst.io.dmaMst.D.valid := dma_bus.d.valid
dma_bus.d.ready := dmaMst.io.dmaMst.D.ready
@@ -146,8 +140,8 @@ class SwitchImp(outer: Switch)(implicit p: Parameters) extends LazyModuleImp(out
for( i <- 0 until chn+1 ){
tempTxPort(chn+1-1).valid := false.B
tempTxPort(chn+1-1).bits := 0.U.asTypeOf(new Mac_Stream_Bundle)
tempTxPort(i).valid := false.B
tempTxPort(i).bits := 0.U.asTypeOf(new Mac_Stream_Bundle)
}
robin.io.deq.rx.ready := false.B