VISHNU RAMADAS has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/67202?usp=email )
Change subject: gpu-compute : Fix incorrect TLB stats when FunctionalTLB is
used
......................................................................
gpu-compute : Fix incorrect TLB stats when FunctionalTLB is used
When FunctionalTLB is used in SE mode, the stats tlbLatency and
tlbCycles report negative values. This patch fixes it by disabling the
updates that result in negative values when FunctionalTLB is set to true
Change-Id: I6962785fc1730b166b6d5b879e9c7618a8d6d4b3
---
M src/gpu-compute/compute_unit.cc
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/src/gpu-compute/compute_unit.cc
b/src/gpu-compute/compute_unit.cc
index 62cfbf9..06fe28f 100644
--- a/src/gpu-compute/compute_unit.cc
+++ b/src/gpu-compute/compute_unit.cc
@@ -1078,7 +1078,9 @@
fatal("pkt is not a read nor a write\n");
}
- stats.tlbCycles -= curTick();
+ if (!functionalTLB) {
+ stats.tlbCycles -= curTick();
+ }
++stats.tlbRequests;
PortID tlbPort_index = perLaneTLB ? index : 0;
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: I6962785fc1730b166b6d5b879e9c7618a8d6d4b3
Gerrit-Change-Number: 67202
Gerrit-PatchSet: 1
Gerrit-Owner: VISHNU RAMADAS <vrama...@wisc.edu>
Gerrit-MessageType: newchange
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