Hello Gabe Black, Curtis Dunham,
I'd like you to reexamine a change. Please visit
https://gem5-review.googlesource.com/9021
to look at the new patch set (#2).
Change subject: mem-cache: Allow clean operations when block allocation
fails
......................................................................
mem-cache: Allow clean operations when block allocation fails
Block allocation can fail when there is an in-service MSHR that
operates on the victim block. This can happed due to:
* an upgrade operation: a request that needs a writable copy of the
block finds a shared (non-writable) copy of the block in the cache
and has allocates an MSHR for the pending upgrade operation, or
* a clean operation: a clean request finds a dirty copy of the block
and allocates an MSHR for the pending clean operation.
This changes relaxes an assertion to allow for the 2nd case (cache
clean operations).
Change-Id: Ib51482160b5f2b3702ed744b0eac2029d34bc9d4
Reviewed-by: Curtis Dunham <[email protected]>
---
M src/mem/cache/cache.cc
M src/mem/cache/mshr.hh
2 files changed, 9 insertions(+), 4 deletions(-)
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: Ib51482160b5f2b3702ed744b0eac2029d34bc9d4
Gerrit-Change-Number: 9021
Gerrit-PatchSet: 2
Gerrit-Owner: Nikos Nikoleris <[email protected]>
Gerrit-Reviewer: Curtis Dunham <[email protected]>
Gerrit-Reviewer: Gabe Black <[email protected]>
Gerrit-Reviewer: Nikos Nikoleris <[email protected]>
Gerrit-MessageType: newpatchset
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