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Diffstat (limited to 'src/mem/ruby/system/MultiGrainBloomFilter.hh')
-rw-r--r-- | src/mem/ruby/system/MultiGrainBloomFilter.hh | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/mem/ruby/system/MultiGrainBloomFilter.hh b/src/mem/ruby/system/MultiGrainBloomFilter.hh new file mode 100644 index 000000000..692960853 --- /dev/null +++ b/src/mem/ruby/system/MultiGrainBloomFilter.hh @@ -0,0 +1,89 @@ + +/* + * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * MultiGrainBloomFilter.h + * + * Description: + * + * + */ + +#ifndef MULTIGRAIN_BLOOM_FILTER_H +#define MULTIGRAIN_BLOOM_FILTER_H + +#include "Map.hh" +#include "Global.hh" +#include "AbstractChip.hh" +#include "RubyConfig.hh" +#include "Address.hh" +#include "AbstractBloomFilter.hh" + +class MultiGrainBloomFilter : public AbstractBloomFilter { +public: + + ~MultiGrainBloomFilter(); + MultiGrainBloomFilter(string str); + + void clear(); + void increment(const Address& addr); + void decrement(const Address& addr); + void merge(AbstractBloomFilter * other_filter); + void set(const Address& addr); + void unset(const Address& addr); + + bool isSet(const Address& addr); + int getCount(const Address& addr); + int getTotalCount(); + int getIndex(const Address& addr); + int readBit(const int index); + void writeBit(const int index, const int value); + + void print(ostream& out) const; + +private: + + int get_block_index(const Address& addr); + int get_page_index(const Address & addr); + + // The block filter + Vector<int> m_filter; + int m_filter_size; + int m_filter_size_bits; + // The page number filter + Vector<int> m_page_filter; + int m_page_filter_size; + int m_page_filter_size_bits; + + int m_count_bits; + int m_count; +}; + + +#endif |