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author | Matt Horsnell <Matt.Horsnell@arm.com> | 2013-02-15 17:40:09 -0500 |
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committer | Matt Horsnell <Matt.Horsnell@arm.com> | 2013-02-15 17:40:09 -0500 |
commit | e88e7d88b9a9876ee040dad96acf3deabebe1fa7 (patch) | |
tree | 54322d578272a21cd721788f25746cfbd88d94bb /src/cpu/o3/lsq_unit_impl.hh | |
parent | 64599080697a8db49b7e28609927bb4c1ed3c05e (diff) | |
download | gem5-e88e7d88b9a9876ee040dad96acf3deabebe1fa7.tar.xz |
o3: fix tick used for renaming and issue with range selection
Fixes the tick used from rename:
- previously this gathered the tick on leaving rename which was always 1 less
than the dispatch. This conflated the decode ticks when back pressure built
in the pipeline.
- now picks up tick on entry.
Added --store_completions flag:
- will additionally display the store completion tail in the viewer.
- this highlights periods when large numbers of stores are outstanding (>16 LSQ
blocking)
Allows selection by tick range (previously this caused an infinite loop)
Diffstat (limited to 'src/cpu/o3/lsq_unit_impl.hh')
-rw-r--r-- | src/cpu/o3/lsq_unit_impl.hh | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cpu/o3/lsq_unit_impl.hh b/src/cpu/o3/lsq_unit_impl.hh index a4cb56767..f0b27ba41 100644 --- a/src/cpu/o3/lsq_unit_impl.hh +++ b/src/cpu/o3/lsq_unit_impl.hh @@ -51,6 +51,7 @@ #include "debug/Activity.hh" #include "debug/IEW.hh" #include "debug/LSQUnit.hh" +#include "debug/O3PipeView.hh" #include "mem/packet.hh" #include "mem/request.hh" @@ -1137,6 +1138,13 @@ LSQUnit<Impl>::completeStore(int store_idx) "idx:%i\n", storeQueue[store_idx].inst->seqNum, store_idx, storeHead); +#if TRACING_ON + if (DTRACE(O3PipeView)) { + storeQueue[store_idx].inst->storeTick = + curTick() - storeQueue[store_idx].inst->fetchTick; + } +#endif + if (isStalled() && storeQueue[store_idx].inst->seqNum == stallingStoreIsn) { DPRINTF(LSQUnit, "Unstalling, stalling store [sn:%lli] " |