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/*
* 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.
*/
/*
* DirectoryMemory.hh
*
* Description:
*
* $Id$
*
*/
#ifndef DIRECTORYMEMORY_H
#define DIRECTORYMEMORY_H
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/common/Address.hh"
#include "mem/ruby/system/MemoryVector.hh"
#include "mem/protocol/Directory_Entry.hh"
#include "sim/sim_object.hh"
#include "params/RubyDirectoryMemory.hh"
#include "mem/ruby/system/SparseMemory.hh"
class DirectoryMemory : public SimObject {
public:
// Constructors
typedef RubyDirectoryMemoryParams Params;
DirectoryMemory(const Params *p);
void init();
// DirectoryMemory(int version);
// Destructor
~DirectoryMemory();
uint64 mapAddressToLocalIdx(PhysAddress address);
static uint64 mapAddressToDirectoryVersion(PhysAddress address);
bool isSparseImplementation() { return m_use_map; }
uint64 getSize() { return m_size_bytes; }
// Public Methods
void printConfig(ostream& out) const;
static void printGlobalConfig(ostream & out);
bool isPresent(PhysAddress address);
Directory_Entry& lookup(PhysAddress address);
void invalidateBlock(PhysAddress address);
void print(ostream& out) const;
void printStats(ostream& out) const;
private:
// Private Methods
// Private copy constructor and assignment operator
DirectoryMemory(const DirectoryMemory& obj);
DirectoryMemory& operator=(const DirectoryMemory& obj);
private:
const string m_name;
// Data Members (m_ prefix)
Directory_Entry **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;
MemoryVector* m_ram;
SparseMemory* m_sparseMemory;
bool m_use_map;
int m_map_levels;
};
// Output operator declaration
ostream& operator<<(ostream& out, const DirectoryMemory& obj);
// ******************* Definitions *******************
// Output operator definition
extern inline
ostream& operator<<(ostream& out, const DirectoryMemory& obj)
{
obj.print(out);
out << flush;
return out;
}
#endif //DIRECTORYMEMORY_H
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