60 lines
3.0 KiB
Scala
60 lines
3.0 KiB
Scala
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// See LICENSE.SiFive for license details.
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package uncore.ahb
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import Chisel._
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import chisel3.internal.sourceinfo.SourceInfo
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import config._
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import diplomacy._
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object AHBImp extends NodeImp[AHBMasterPortParameters, AHBSlavePortParameters, AHBEdgeParameters, AHBEdgeParameters, AHBBundle]
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{
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def edgeO(pd: AHBMasterPortParameters, pu: AHBSlavePortParameters): AHBEdgeParameters = AHBEdgeParameters(pd, pu)
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def edgeI(pd: AHBMasterPortParameters, pu: AHBSlavePortParameters): AHBEdgeParameters = AHBEdgeParameters(pd, pu)
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def bundleO(eo: Seq[AHBEdgeParameters]): Vec[AHBBundle] = {
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require (!eo.isEmpty)
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Vec(eo.size, AHBBundle(eo.map(_.bundle).reduce(_.union(_))))
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}
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def bundleI(ei: Seq[AHBEdgeParameters]): Vec[AHBBundle] = {
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require (!ei.isEmpty)
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Vec(ei.size, AHBBundle(ei.map(_.bundle).reduce(_.union(_))))
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}
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def colour = "#00ccff" // bluish
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override def labelI(ei: AHBEdgeParameters) = (ei.slave.beatBytes * 8).toString
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override def labelO(eo: AHBEdgeParameters) = (eo.slave.beatBytes * 8).toString
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def connect(bo: => AHBBundle, bi: => AHBBundle, ei: => AHBEdgeParameters)(implicit p: Parameters, sourceInfo: SourceInfo): (Option[LazyModule], () => Unit) = {
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(None, () => { bi <> bo })
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}
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override def mixO(pd: AHBMasterPortParameters, node: OutwardNode[AHBMasterPortParameters, AHBSlavePortParameters, AHBBundle]): AHBMasterPortParameters =
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pd.copy(masters = pd.masters.map { c => c.copy (nodePath = node +: c.nodePath) })
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override def mixI(pu: AHBSlavePortParameters, node: InwardNode[AHBMasterPortParameters, AHBSlavePortParameters, AHBBundle]): AHBSlavePortParameters =
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pu.copy(slaves = pu.slaves.map { m => m.copy (nodePath = node +: m.nodePath) })
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}
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// Nodes implemented inside modules
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case class AHBIdentityNode() extends IdentityNode(AHBImp)
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case class AHBMasterNode(portParams: AHBMasterPortParameters, numPorts: Range.Inclusive = 1 to 1)
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extends SourceNode(AHBImp)(portParams, numPorts)
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case class AHBSlaveNode(portParams: AHBSlavePortParameters, numPorts: Range.Inclusive = 1 to 1)
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extends SinkNode(AHBImp)(portParams, numPorts)
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case class AHBAdapterNode(
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masterFn: Seq[AHBMasterPortParameters] => AHBMasterPortParameters,
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slaveFn: Seq[AHBSlavePortParameters] => AHBSlavePortParameters,
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numMasterPorts: Range.Inclusive = 1 to 1,
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numSlavePorts: Range.Inclusive = 1 to 1)
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extends InteriorNode(AHBImp)(masterFn, slaveFn, numMasterPorts, numSlavePorts)
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// Nodes passed from an inner module
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case class AHBOutputNode() extends OutputNode(AHBImp)
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case class AHBInputNode() extends InputNode(AHBImp)
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// Nodes used for external ports
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case class AHBBlindOutputNode(portParams: AHBSlavePortParameters) extends BlindOutputNode(AHBImp)(portParams)
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case class AHBBlindInputNode(portParams: AHBMasterPortParameters) extends BlindInputNode(AHBImp)(portParams)
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case class AHBInternalOutputNode(portParams: AHBSlavePortParameters) extends InternalOutputNode(AHBImp)(portParams)
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case class AHBInternalInputNode(portParams: AHBMasterPortParameters) extends InternalInputNode(AHBImp)(portParams)
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