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Diffstat (limited to 'src/mem/ruby/structures/DirectoryMemory.hh')
-rw-r--r-- | src/mem/ruby/structures/DirectoryMemory.hh | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/mem/ruby/structures/DirectoryMemory.hh b/src/mem/ruby/structures/DirectoryMemory.hh new file mode 100644 index 000000000..cc390e428 --- /dev/null +++ b/src/mem/ruby/structures/DirectoryMemory.hh @@ -0,0 +1,104 @@ +/* + * 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. + */ + +#ifndef __MEM_RUBY_SYSTEM_DIRECTORYMEMORY_HH__ +#define __MEM_RUBY_SYSTEM_DIRECTORYMEMORY_HH__ + +#include <iostream> +#include <string> + +#include "mem/protocol/DirectoryRequestType.hh" +#include "mem/ruby/common/Address.hh" +#include "mem/ruby/slicc_interface/AbstractEntry.hh" +#include "mem/ruby/structures/MemoryVector.hh" +#include "mem/ruby/structures/SparseMemory.hh" +#include "params/RubyDirectoryMemory.hh" +#include "sim/sim_object.hh" + +class DirectoryMemory : public SimObject +{ + public: + typedef RubyDirectoryMemoryParams Params; + DirectoryMemory(const Params *p); + ~DirectoryMemory(); + + void init(); + + uint64 mapAddressToLocalIdx(PhysAddress address); + static uint64 mapAddressToDirectoryVersion(PhysAddress address); + + bool isSparseImplementation() { return m_use_map; } + uint64 getSize() { return m_size_bytes; } + + bool isPresent(PhysAddress address); + AbstractEntry* lookup(PhysAddress address); + AbstractEntry* allocate(const PhysAddress& address, + AbstractEntry* new_entry); + + void invalidateBlock(PhysAddress address); + + void print(std::ostream& out) const; + void regStats(); + + void recordRequestType(DirectoryRequestType requestType); + + private: + // Private copy constructor and assignment operator + DirectoryMemory(const DirectoryMemory& obj); + DirectoryMemory& operator=(const DirectoryMemory& obj); + + private: + const std::string m_name; + AbstractEntry **m_entries; + // int m_size; // # of memory module blocks this directory is + // responsible for + uint64 m_size_bytes; + uint64 m_size_bits; + uint64 m_num_entries; + int m_version; + + static int m_num_directories; + static int m_num_directories_bits; + static uint64_t m_total_size_bytes; + static int m_numa_high_bit; + + MemoryVector* m_ram; + SparseMemory* m_sparseMemory; + bool m_use_map; + int m_map_levels; +}; + +inline std::ostream& +operator<<(std::ostream& out, const DirectoryMemory& obj) +{ + obj.print(out); + out << std::flush; + return out; +} + +#endif // __MEM_RUBY_SYSTEM_DIRECTORYMEMORY_HH__ |