diff options
Diffstat (limited to 'src/mem/ruby')
| -rw-r--r-- | src/mem/ruby/system/Cache.py | 1 | ||||
| -rw-r--r-- | src/mem/ruby/system/CacheMemory.cc | 5 | ||||
| -rw-r--r-- | src/mem/ruby/system/CacheMemory.hh | 1 |
3 files changed, 5 insertions, 2 deletions
diff --git a/src/mem/ruby/system/Cache.py b/src/mem/ruby/system/Cache.py index 06952afd1..ab3ec4b29 100644 --- a/src/mem/ruby/system/Cache.py +++ b/src/mem/ruby/system/Cache.py @@ -38,3 +38,4 @@ class RubyCache(SimObject): latency = Param.Int(""); assoc = Param.Int(""); replacement_policy = Param.String("PSEUDO_LRU", ""); + start_index_bit = Param.Int(6, "index start, default 6 for 64-byte line"); diff --git a/src/mem/ruby/system/CacheMemory.cc b/src/mem/ruby/system/CacheMemory.cc index 604113238..59f97e5fe 100644 --- a/src/mem/ruby/system/CacheMemory.cc +++ b/src/mem/ruby/system/CacheMemory.cc @@ -53,6 +53,7 @@ CacheMemory::CacheMemory(const Params *p) m_cache_assoc = p->assoc; m_policy = p->replacement_policy; m_profiler_ptr = new CacheProfiler(name()); + m_start_index_bit = p->start_index_bit; } void @@ -127,8 +128,8 @@ Index CacheMemory::addressToCacheSet(const Address& address) const { assert(address == line_address(address)); - return address.bitSelect(RubySystem::getBlockSizeBits(), - RubySystem::getBlockSizeBits() + m_cache_num_set_bits - 1); + return address.bitSelect(m_start_index_bit, + m_start_index_bit + m_cache_num_set_bits - 1); } // Given a cache index: returns the index of the tag in a set. diff --git a/src/mem/ruby/system/CacheMemory.hh b/src/mem/ruby/system/CacheMemory.hh index c1d49f784..3ef951821 100644 --- a/src/mem/ruby/system/CacheMemory.hh +++ b/src/mem/ruby/system/CacheMemory.hh @@ -169,6 +169,7 @@ class CacheMemory : public SimObject int m_cache_num_sets; int m_cache_num_set_bits; int m_cache_assoc; + int m_start_index_bit; }; #endif // __MEM_RUBY_SYSTEM_CACHEMEMORY_HH__ |