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Merge pull request #477 from firesim/fix-tracerv-cycle 

[TracerV] Fix the reported target cycle
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Sagar Karandikar 2020-01-25 07:34:05 -08:00 committed by GitHub
parent eaaef6afa1 e64301372d
commit 6dd3d1fd4f
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1 changed files with 8 additions and 10 deletions
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18
sim/firesim-lib/src/main/scala/bridges/TracerVBridge.scala
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@ -156,11 +156,6 @@ class TracerVBridgeModule(key: TracerVKey)(implicit p: Parameters) extends Bridg
triggerCycleCountEnd := hostTriggerCycleCountEnd
val trace_cycle_counter = RegInit(0.U(64.W))
when (tFire) {
trace_cycle_counter := trace_cycle_counter + 1.U
} .otherwise {
trace_cycle_counter := trace_cycle_counter
}
//target instruction type trigger (trigger through target software)
//can configure the trigger instruction type externally though simulation driver
@ -226,14 +221,17 @@ class TracerVBridgeModule(key: TracerVKey)(implicit p: Parameters) extends Bridg
0.U((outgoingPCISdat.io.enq.bits.getWidth - Cat(uint_traces).getWidth - trace_cycle_counter.getWidth).W)),
Cat(uint_traces))
val tFireHelper = DecoupledHelper(outgoingPCISdat.io.enq.ready,
hPort.toHost.hValid, hPort.fromHost.hReady)
hPort.fromHost.hValid := tFireHelper.fire(hPort.fromHost.hReady)
hPort.toHost.hReady := tFireHelper.fire
val tFireHelper = DecoupledHelper(outgoingPCISdat.io.enq.ready, hPort.toHost.hValid)
hPort.toHost.hReady := tFireHelper.fire(hPort.toHost.hValid)
// We don't drive tokens back to the target.
hPort.fromHost.hValid := true.B
outgoingPCISdat.io.enq.valid := tFireHelper.fire(outgoingPCISdat.io.enq.ready, trigger)
when (tFireHelper.fire) {
trace_cycle_counter := trace_cycle_counter + 1.U
}
// This need to go on a debug switch
//when (outgoingPCISdat.io.enq.fire()) {
// hPort.hBits.traces.zipWithIndex.foreach({ case (bundle, bIdx) =>