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subsystem: even more general coupler methods

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This commit is contained in:
Henry Cook
2018-02-23 12:50:51 -08:00
parent 5b1d72c776
commit 5725e17969
4 changed files with 55 additions and 92 deletions
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30
src/main/scala/subsystem/SystemBus.scala
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@ -18,6 +18,9 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
private val master_splitter = LazyModule(new TLSplitter)
inwardNode :=* master_splitter.node
protected def fixFromThenSplit(policy: TLFIFOFixer.Policy, buffers: Int): TLInwardNode =
master_splitter.node :=* TLBuffer.chain(buffers).foldLeft(TLFIFOFixer(policy))(_ :=* _)
def busView = master_splitter.node.edges.in.head
def toPeripheryBus(buffer: BufferParams = BufferParams.none)
@ -59,9 +62,7 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
(name: Option[String] = None, buffer: BufferParams = BufferParams.default)
(gen: => NodeHandle[TLClientPortParameters,TLManagerPortParameters,TLEdgeIn,TLBundle,D,U,E,B] =
TLIdentity.gen): OutwardNodeHandle[D,U,E,B] = {
to("slave" named name) {
gen :*= TLFragmenter(params.beatBytes, params.blockBytes) :*= bufferTo(buffer)
}
to("slave" named name) { gen :*= fragmentTo(buffer) }
}
def fromFrontBus(gen: => TLNode): TLInwardNode = {
@ -72,8 +73,7 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
(name: Option[String], buffers: Int = 0, cork: Option[Boolean] = None)
(gen: => TLNode): TLInwardNode = {
from("tile" named name) {
(List(master_splitter.node, TLFIFOFixer(TLFIFOFixer.allUncacheable)) ++ TLBuffer.chain(buffers))
.reduce(_ :=* _) :=* gen
fixFromThenSplit(TLFIFOFixer.allUncacheable, buffers) :=* gen
}
}
@ -88,34 +88,20 @@ class SystemBus(params: SystemBusParams)(implicit p: Parameters) extends TLBusWr
(name: Option[String] = None, buffers: Int = 0)
(gen: => NodeHandle[D,U,E,B,TLClientPortParameters,TLManagerPortParameters,TLEdgeOut,TLBundle] =
TLIdentity.gen): InwardNodeHandle[D,U,E,B] = {
from("port" named name) {
(List(
master_splitter.node,
TLFIFOFixer(TLFIFOFixer.all)) ++
TLBuffer.chain(buffers)).reduce(_ :=* _) :=* gen
}
from("port" named name) { fixFromThenSplit(TLFIFOFixer.all, buffers) :=* gen }
}
def fromCoherentMaster[D,U,E,B <: Data]
(name: Option[String] = None, buffers: Int = 0)
(gen: => NodeHandle[D,U,E,B,TLClientPortParameters,TLManagerPortParameters,TLEdgeOut,TLBundle] =
TLIdentity.gen): InwardNodeHandle[D,U,E,B] = {
from("coherent_master" named name) {
(inwardNode
:=* TLBuffer.chain(buffers).foldLeft(TLFIFOFixer(TLFIFOFixer.all))(_ :=* _)
:=* gen)
}
from("coherent_master" named name) { fixFrom(TLFIFOFixer.all, buffers) :=* gen }
}
def fromMaster[D,U,E,B <: Data]
(name: Option[String] = None, buffers: Int = 0)
(gen: => NodeHandle[D,U,E,B,TLClientPortParameters,TLManagerPortParameters,TLEdgeOut,TLBundle] =
TLIdentity.gen): InwardNodeHandle[D,U,E,B] = {
from("master" named name) {
(master_splitter.node
:=* TLFIFOFixer(TLFIFOFixer.all)
:=* TLBuffer.chain(buffers).reduce(_ :=* _)
:=* gen)
}
from("master" named name) { fixFromThenSplit(TLFIFOFixer.all, buffers) :=* gen }
}
}