Hello Jason Lowe-Power, Nikos Nikoleris,
I'd like you to reexamine a change. Please visit
https://gem5-review.googlesource.com/c/public/gem5/+/12087
to look at the new patch set (#2).
Change subject: mem-cache: Handle data expansion
......................................................................
mem-cache: Handle data expansion
When a block in compressed form is overwriten, it may change
its size. If the new compressed size is bigger, and the total
size becomes bigger than the block size, one or more blocks
will have to be evicted. This is called data expansion, or
fat writes.
This patch adds the functionality to handle data expansions
by evicting the co-allocated blocks to make room for an
expanded block.
As a side effect, satisfyRequest() must now return writebacks.
Change-Id: I0bd77bf6446bfae336889940b2f75d6f0c87e533
---
M src/mem/cache/base.cc
M src/mem/cache/base.hh
M src/mem/cache/cache.cc
M src/mem/cache/cache.hh
M src/mem/cache/noncoherent_cache.cc
M src/mem/cache/noncoherent_cache.hh
M src/mem/cache/tags/Tags.py
M src/mem/cache/tags/compressed_tags.cc
M src/mem/cache/tags/compressed_tags.hh
9 files changed, 201 insertions(+), 23 deletions(-)
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I0bd77bf6446bfae336889940b2f75d6f0c87e533
Gerrit-Change-Number: 12087
Gerrit-PatchSet: 2
Gerrit-Owner: Daniel Carvalho <[email protected]>
Gerrit-Reviewer: Daniel Carvalho <[email protected]>
Gerrit-Reviewer: Jason Lowe-Power <[email protected]>
Gerrit-Reviewer: Nikos Nikoleris <[email protected]>
Gerrit-MessageType: newpatchset
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