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cpu: Disable MinorCPU value forwarding with write strobes

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Change-Id: I7cb50b80b70fcf43ab23eb9e7333d16328993fe1
Signed-off-by: Gabor Dozsa <gabor.dozsa@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/19173
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Gabor Dozsa
2019-01-23 15:15:16 +00:00
committed by Giacomo Travaglini
parent 64e136175e
commit bd32682445
1 changed files with 9 additions and 1 deletions
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10
src/cpu/minor/lsq.cc
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@@ -142,10 +142,18 @@ LSQ::LSQRequest::containsAddrRangeOf(
LSQ::AddrRangeCoverage
LSQ::LSQRequest::containsAddrRangeOf(LSQRequestPtr other_request)
{
return containsAddrRangeOf(request->getPaddr(), request->getSize(),
AddrRangeCoverage ret = containsAddrRangeOf(
request->getPaddr(), request->getSize(),
other_request->request->getPaddr(), other_request->request->getSize());
/* If there is a strobe mask then store data forwarding might not be
* correct. Instead of checking enablemant of every byte we just fall back
* to PartialAddrRangeCoverage to prohibit store data forwarding */
if (ret == FullAddrRangeCoverage && request->isMasked())
ret = PartialAddrRangeCoverage;
return ret;
}
bool
LSQ::LSQRequest::isBarrier()
{