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Workaround for scheduling issues when using PERFORMANCE_MONITORING (with jdw57)

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Alexandre Joannou
2021-02-15 18:07:08 +00:00
parent e3b776a81f
commit 4c19a34eda
2 changed files with 21 additions and 3 deletions
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23
src_Core/CPU/CsrFile.bsv
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@@ -252,21 +252,38 @@ endinterface
module mkPerfCountersToooba (PerfCountersVec);
PerfCounters_IFC #(No_Of_Ctrs, Counter_Width, Report_Width, No_Of_Evts) perf_counters <- mkPerfCounters;
Vector#(No_Of_Ctrs, Reg#(Data)) counters = ?;
let writeCounterFF <- mkFIFO;
rule forwardWriteCounter;
match {.i, .x} <- toGet(writeCounterFF).get;
perf_counters.write_counter(i, x);
endrule
let writeCounterSelFF <- mkFIFO;
rule forwardWriteCounterSel;
match {.i, .x} <- toGet(writeCounterSelFF).get;
perf_counters.write_ctr_sel(i, x);
endrule
let writeCounterInhibitFF <- mkFIFO;
rule forwardWriteCounterInhibit;
let x <- toGet(writeCounterInhibitFF).get;
perf_counters.write_ctr_inhibit(x);
endrule
for (Bit#(TLog#(No_Of_Ctrs)) i = 0; i < 29; i = i + 1) counters[i] =
interface Reg;
method Action _write(Data x) = perf_counters.write_counter(i,x);
method Action _write(Data x) = writeCounterFF.enq(tuple2(i,x));
method Data _read = perf_counters.read_counters[i];
endinterface;
Vector#(No_Of_Ctrs, Reg#(Data)) events = ?;
for (Bit#(TLog#(No_Of_Ctrs)) i = 0; i < 29; i = i + 1) events[i] =
interface Reg;
method Action _write(Data x) = perf_counters.write_ctr_sel(i,truncate(x));
method Action _write(Data x) = writeCounterSelFF.enq(tuple2(i,truncate(x)));
method Data _read = zeroExtend(perf_counters.read_ctr_sels[i]);
endinterface;
interface counter_vec = counters;
interface event_vec = events;
interface inhibit = interface Reg;
method Action _write(Data x) = perf_counters.write_ctr_inhibit(truncate(x));
method Action _write(Data x) = writeCounterInhibitFF.enq(truncate(x));
method Data _read = zeroExtend(perf_counters.read_ctr_inhibit);
endinterface;
method send_performance_events = perf_counters.send_performance_events;