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base, mem-cache: Do not expose tags to the AssociativeCache

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Exposing the tag of a cache entry through the associative
cache APIs makes it hard to generalize the cache for
structured tags. Ultimately the tag should be a property
of the cache entry and any tag extraction logic (if needed)
should reside there. In this we can reuse the associative
cache for different Entry params, each one bearing a different
representation of a tag

Change-Id: I51b4526be64683614e01d763b1656e5be23a611b
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
This commit is contained in:
Giacomo Travaglini
2024-04-12 14:16:10 +01:00
parent 31d967b453
commit 4814fedef0
28 changed files with 140 additions and 79 deletions
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27
src/mem/cache/prefetch/irregular_stream_buffer.cc vendored
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@@ -48,21 +48,22 @@ IrregularStreamBuffer::IrregularStreamBuffer(
p.training_unit_entries,
p.training_unit_assoc,
p.training_unit_replacement_policy,
p.training_unit_indexing_policy),
p.training_unit_indexing_policy,
TrainingUnitEntry(p.training_unit_indexing_policy)),
psAddressMappingCache((name() + ".PSAddressMappingCache").c_str(),
p.address_map_cache_entries,
p.address_map_cache_assoc,
p.ps_address_map_cache_replacement_policy,
p.ps_address_map_cache_indexing_policy,
AddressMappingEntry(prefetchCandidatesPerEntry,
p.num_counter_bits)),
p.address_map_cache_entries,
p.address_map_cache_assoc,
p.ps_address_map_cache_replacement_policy,
p.ps_address_map_cache_indexing_policy,
AddressMappingEntry(prefetchCandidatesPerEntry,
p.num_counter_bits, p.ps_address_map_cache_indexing_policy)),
spAddressMappingCache((name() + ".SPAddressMappingCache").c_str(),
p.address_map_cache_entries,
p.address_map_cache_assoc,
p.sp_address_map_cache_replacement_policy,
p.sp_address_map_cache_indexing_policy,
AddressMappingEntry(prefetchCandidatesPerEntry,
p.num_counter_bits)),
p.address_map_cache_entries,
p.address_map_cache_assoc,
p.sp_address_map_cache_replacement_policy,
p.sp_address_map_cache_indexing_policy,
AddressMappingEntry(prefetchCandidatesPerEntry,
p.num_counter_bits, p.sp_address_map_cache_indexing_policy)),
structuralAddressCounter(0)
{
assert(isPowerOf2(prefetchCandidatesPerEntry));