riscv/rocket-chip
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coreplex: add externalSlaveBuffers configuration option

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This commit is contained in:
Wesley W. Terpstra 2017-09-06 14:58:34 -07:00
parent fd8a51a910
commit 1a87ed1193
2 changed files with 5 additions and 4 deletions
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6
src/main/scala/coreplex/RocketCoreplex.scala
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@ -46,19 +46,19 @@ trait HasRocketTiles extends HasSystemBus
case SynchronousCrossing(params) => { case SynchronousCrossing(params) => {
val wrapper = LazyModule(new SyncRocketTile(tp, i)(pWithExtra)) val wrapper = LazyModule(new SyncRocketTile(tp, i)(pWithExtra))
sbus.fromSyncTiles(params, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode sbus.fromSyncTiles(params, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode
wrapper.slaveNode :*= pbus.bufferToSlaves wrapper.slaveNode :*= pbus.toSyncSlaves(tp.name, tp.externalSlaveBuffers)
wrapper wrapper
} }
case AsynchronousCrossing(depth, sync) => { case AsynchronousCrossing(depth, sync) => {
val wrapper = LazyModule(new AsyncRocketTile(tp, i)(pWithExtra)) val wrapper = LazyModule(new AsyncRocketTile(tp, i)(pWithExtra))
sbus.fromAsyncTiles(depth, sync, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode sbus.fromAsyncTiles(depth, sync, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode
wrapper.slaveNode :*= pbus.toAsyncSlaves(sync, tp.name) wrapper.slaveNode :*= pbus.toAsyncSlaves(sync, tp.name, tp.externalSlaveBuffers)
wrapper wrapper
} }
case RationalCrossing(direction) => { case RationalCrossing(direction) => {
val wrapper = LazyModule(new RationalRocketTile(tp, i)(pWithExtra)) val wrapper = LazyModule(new RationalRocketTile(tp, i)(pWithExtra))
sbus.fromRationalTiles(direction, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode sbus.fromRationalTiles(direction, tp.externalMasterBuffers, tp.name) :=* wrapper.masterNode
wrapper.slaveNode :*= pbus.toRationalSlaves(tp.name) wrapper.slaveNode :*= pbus.toRationalSlaves(tp.name, tp.externalSlaveBuffers)
wrapper wrapper
} }
} }

3
src/main/scala/tile/RocketTile.scala
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@ -20,7 +20,8 @@ case class RocketTileParams(
dataScratchpadBytes: Int = 0, dataScratchpadBytes: Int = 0,
boundaryBuffers: Boolean = false, boundaryBuffers: Boolean = false,
name: Option[String] = Some("tile"), name: Option[String] = Some("tile"),
externalMasterBuffers: Int = 0) extends TileParams { externalMasterBuffers: Int = 0,
externalSlaveBuffers: Int = 0) extends TileParams {
require(icache.isDefined) require(icache.isDefined)
require(dcache.isDefined) require(dcache.isDefined)
} }