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Propagate sourceGen backpressure into MultiCoalescer

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This commit is contained in:
Hansung Kim
2023-05-16 00:24:26 -07:00
parent 3549f62e55
commit 148e2550fa
1 changed files with 5 additions and 4 deletions
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9
src/main/scala/tilelink/Coalescing.scala
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@@ -730,6 +730,7 @@ class CoalescerSourceGen(
// TODO: make sourceGen.io.reclaim Decoupled? // TODO: make sourceGen.io.reclaim Decoupled?
io.outReq <> io.inReq io.outReq <> io.inReq
io.inReq.ready := io.outReq.ready && sourceGen.io.id.valid
// overwrite bits affected by sourcegen backpressure // overwrite bits affected by sourcegen backpressure
io.outReq.valid := io.inReq.valid && sourceGen.io.id.valid io.outReq.valid := io.inReq.valid && sourceGen.io.id.valid
io.outReq.bits.source := sourceGen.io.id.bits io.outReq.bits.source := sourceGen.io.id.bits
@@ -1031,10 +1032,10 @@ class Uncoalescer(
// TODO: inflight table is really a more sophisticated sourcegen. Let it // TODO: inflight table is really a more sophisticated sourcegen. Let it
// also take care of sourcegen instead of having a separte pass // also take care of sourcegen instead of having a separte pass
// (CoalescerSourceGen). // (CoalescerSourceGen).
when(!inflightTable.io.enq.ready) { // when(!inflightTable.io.enq.ready) {
assert(!io.coalReq.valid, // assert(!io.coalReq.valid,
"tried to fire a coalesced request when uncoalescer is not ready") // "tried to fire a coalesced request when uncoalescer is not ready")
} // }
// Construct a new entry for the inflight table using generated coalesced request // Construct a new entry for the inflight table using generated coalesced request
def generateInflightTableEntry: InflightCoalReqTableEntry = { def generateInflightTableEntry: InflightCoalReqTableEntry = {