diff options
Diffstat (limited to 'src/mem/cache/prefetch/Prefetcher.py')
| -rw-r--r-- | src/mem/cache/prefetch/Prefetcher.py | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/mem/cache/prefetch/Prefetcher.py b/src/mem/cache/prefetch/Prefetcher.py index 3d9c66565..082590853 100644 --- a/src/mem/cache/prefetch/Prefetcher.py +++ b/src/mem/cache/prefetch/Prefetcher.py @@ -180,6 +180,29 @@ class SignaturePathPrefetcher(QueuedPrefetcher): lookahead_confidence_threshold = Param.Float(0.75, "Minimum confidence to continue exploring lookahead entries") +class SignaturePathPrefetcherV2(SignaturePathPrefetcher): + type = 'SignaturePathPrefetcherV2' + cxx_class = 'SignaturePathPrefetcherV2' + cxx_header = "mem/cache/prefetch/signature_path_v2.hh" + + signature_table_entries = "256" + signature_table_assoc = 1 + pattern_table_entries = "512" + pattern_table_assoc = 1 + max_counter_value = 15 + prefetch_confidence_threshold = 0.25 + lookahead_confidence_threshold = 0.25 + + global_history_register_entries = Param.MemorySize("8", + "Number of entries of global history register") + global_history_register_indexing_policy = Param.BaseIndexingPolicy( + SetAssociative(entry_size = 1, + assoc = Parent.global_history_register_entries, + size = Parent.global_history_register_entries), + "Indexing policy of the global history register") + global_history_register_replacement_policy = Param.BaseReplacementPolicy( + LRURP(), "Replacement policy of the global history register") + class AccessMapPatternMatchingPrefetcher(QueuedPrefetcher): type = 'AccessMapPatternMatchingPrefetcher' cxx_class = 'AccessMapPatternMatchingPrefetcher' |