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Give slack time after trace EOF before sim termination

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... so that we make sure to receive all outstanding responses.
This fixes the response traces being truncated too early.
This commit is contained in:
Hansung Kim
2023-04-21 16:26:09 -07:00
parent 3f9f7a1d67
commit 3ba566b9f7
1 changed files with 12 additions and 11 deletions
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23
src/main/scala/tilelink/Coalescing.scala
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@@ -760,18 +760,19 @@ class MemTraceDriverImp(outer: MemTraceDriver, numLanes: Int, traceFile: String)
dontTouch(tlOut.d) dontTouch(tlOut.d)
} }
io.finished := sim.io.trace_read.finished // Give some slack time after trace EOF to the downstream system so that we
when(io.finished) { // make sure to receive all outstanding responses.
assert( val finishCounter = RegInit(200.U(64.W))
false.B, when (sim.io.trace_read.finished) {
"\n\n\nsimulation Successfully finished\n\n\n (this assertion intentional fail upon MemTracer termination)" finishCounter := finishCounter - 1.U
)
} }
io.finished := (finishCounter === 0.U)
// Clock Counter, for debugging purpose // when(io.finished) {
val clkcount = RegInit(0.U(64.W)) // assert(
clkcount := clkcount + 1.U // false.B,
dontTouch(clkcount) // "\n\n\nsimulation Successfully finished\n\n\n (this assertion intentional fail upon MemTracer termination)"
// )
// }
} }
class SimMemTrace(filename: String, numLanes: Int) class SimMemTrace(filename: String, numLanes: Int)