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| /gem5/src/mem/ | ||
| H A D | snoop_filter.hh | 10399:0644819fc32f Sat Sep 20 17:18:00 EDT 2014 Stephan Diestelhorst <stephan.diestelhorst@arm.com> mem: Simple Snoop Filter This is a first cut at a simple snoop filter that tracks presence of lines in the caches "above" it. The snoop filter can be applied at any given cache hierarchy and will then handle the caches above it appropriately; there is no need to use this only in the last-level bus. This design currently has some limitations: missing stats, no notion of clean evictions (these will not update the underlying snoop filter, because they are not sent from the evicting cache down), no notion of capacity for the snoop filter and thus no need for invalidations caused by capacity pressure in the snoop filter. These are planned to be added on top with future change sets. |
| H A D | snoop_filter.cc | 10399:0644819fc32f Sat Sep 20 17:18:00 EDT 2014 Stephan Diestelhorst <stephan.diestelhorst@arm.com> mem: Simple Snoop Filter This is a first cut at a simple snoop filter that tracks presence of lines in the caches "above" it. The snoop filter can be applied at any given cache hierarchy and will then handle the caches above it appropriately; there is no need to use this only in the last-level bus. This design currently has some limitations: missing stats, no notion of clean evictions (these will not update the underlying snoop filter, because they are not sent from the evicting cache down), no notion of capacity for the snoop filter and thus no need for invalidations caused by capacity pressure in the snoop filter. These are planned to be added on top with future change sets. |
| H A D | SConscript | 10399:0644819fc32f Sat Sep 20 17:18:00 EDT 2014 Stephan Diestelhorst <stephan.diestelhorst@arm.com> mem: Simple Snoop Filter This is a first cut at a simple snoop filter that tracks presence of lines in the caches "above" it. The snoop filter can be applied at any given cache hierarchy and will then handle the caches above it appropriately; there is no need to use this only in the last-level bus. This design currently has some limitations: missing stats, no notion of clean evictions (these will not update the underlying snoop filter, because they are not sent from the evicting cache down), no notion of capacity for the snoop filter and thus no need for invalidations caused by capacity pressure in the snoop filter. These are planned to be added on top with future change sets. |
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