diff options
Diffstat (limited to 'src/mem/cache/cache.hh')
| -rw-r--r-- | src/mem/cache/cache.hh | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mem/cache/cache.hh b/src/mem/cache/cache.hh index 6da837003..eb40ddb18 100644 --- a/src/mem/cache/cache.hh +++ b/src/mem/cache/cache.hh @@ -202,6 +202,15 @@ class Cache : public BaseCache */ const Enums::Clusivity clusivity; + /** + * Determine if clean lines should be written back or not. In + * cases where a downstream cache is mostly inclusive we likely + * want it to act as a victim cache also for lines that have not + * been modified. Hence, we cannot simply drop the line (or send a + * clean evict), but rather need to send the actual data. + */ + const bool writebackClean; + /** * Upstream caches need this packet until true is returned, so * hold it for deletion until a subsequent call |