Hello kokoro, Jason Lowe-Power, Nikos Nikoleris,
I'd like you to reexamine a change. Please visit
https://gem5-review.googlesource.com/c/public/gem5/+/18209
to look at the new patch set (#4).
Change subject: mem-cache: Remove writebacks packet list
......................................................................
mem-cache: Remove writebacks packet list
Previously all atomic writebacks concerned a single block,
therefore, when a block was evicted, no other block would be
pending eviction. With sector tags (and compression),
however, a single replacement can generate many evictions.
This can cause problems, since a writeback that evicts a block
may evict blocks in the lower cache. If one of these conflict
with one of the blocks pending eviction in the higher level, the
snoop must inform it to the lower level. Since atomic mode does
not have a writebuffer, this kind of conflict wouldn't be noticed.
Therefore, instead of evicting multiple blocks at once, we
do it one by one.
Change-Id: I2fc2f9eb0f26248ddf91adbe987d158f5a2e592b
Signed-off-by: Daniel R. Carvalho <oda...@yahoo.com.br>
---
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
6 files changed, 143 insertions(+), 192 deletions(-)
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-Change-Id: I2fc2f9eb0f26248ddf91adbe987d158f5a2e592b
Gerrit-Change-Number: 18209
Gerrit-PatchSet: 4
Gerrit-Owner: Daniel Carvalho <oda...@yahoo.com.br>
Gerrit-Reviewer: Daniel Carvalho <oda...@yahoo.com.br>
Gerrit-Reviewer: Jason Lowe-Power <ja...@lowepower.com>
Gerrit-Reviewer: Nikos Nikoleris <nikos.nikole...@arm.com>
Gerrit-Reviewer: kokoro <noreply+kok...@google.com>
Gerrit-MessageType: newpatchset
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