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O3: Create a pipeline activity viewer for the O3 CPU model.

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Implemented a pipeline activity viewer as a python script (util/o3-pipeview.py)
and modified O3 code base to support an extra trace flag (O3PipeView) for
generating traces to be used as inputs by the tool.
This commit is contained in:
Giacomo Gabrielli
2011-07-15 11:53:35 -05:00
parent 09914cdf8f
commit 69ef57fd0f
10 changed files with 315 additions and 0 deletions
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17
src/cpu/o3/commit_impl.hh
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@@ -58,6 +58,7 @@
#include "debug/Commit.hh"
#include "debug/CommitRate.hh"
#include "debug/ExecFaulting.hh"
#include "debug/O3PipeView.hh"
#include "params/DerivO3CPU.hh"
#include "sim/faults.hh"
@@ -1207,6 +1208,22 @@ DefaultCommit<Impl>::commitHead(DynInstPtr &head_inst, unsigned inst_num)
// Finally clear the head ROB entry.
rob->retireHead(tid);
#if TRACING_ON
// Print info needed by the pipeline activity viewer.
DPRINTFR(O3PipeView, "O3PipeView:fetch:%llu:0x%08llx:%d:%llu:%s\n",
head_inst->fetchTick,
head_inst->instAddr(),
head_inst->microPC(),
head_inst->seqNum,
head_inst->staticInst->disassemble(head_inst->instAddr()));
DPRINTFR(O3PipeView, "O3PipeView:decode:%llu\n", head_inst->decodeTick);
DPRINTFR(O3PipeView, "O3PipeView:rename:%llu\n", head_inst->renameTick);
DPRINTFR(O3PipeView, "O3PipeView:dispatch:%llu\n", head_inst->dispatchTick);
DPRINTFR(O3PipeView, "O3PipeView:issue:%llu\n", head_inst->issueTick);
DPRINTFR(O3PipeView, "O3PipeView:complete:%llu\n", head_inst->completeTick);
DPRINTFR(O3PipeView, "O3PipeView:retire:%llu\n", curTick());
#endif
// If this was a store, record it for this cycle.
if (head_inst->isStore())
committedStores[tid] = true;