PersistentTable.hh revision 7455
112854Sgabeblack@google.com/* 212854Sgabeblack@google.com * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 312854Sgabeblack@google.com * All rights reserved. 412854Sgabeblack@google.com * 512854Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 612854Sgabeblack@google.com * modification, are permitted provided that the following conditions are 712854Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 812854Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 912854Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1012854Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1112854Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1212854Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1312854Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1412854Sgabeblack@google.com * this software without specific prior written permission. 1512854Sgabeblack@google.com * 1612854Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712854Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812854Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912854Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012854Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112854Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212854Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312854Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412854Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512854Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612854Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712854Sgabeblack@google.com */ 2812854Sgabeblack@google.com 2912854Sgabeblack@google.com#ifndef __MEM_RUBY_SYSTEM_PERSISTENTTABLE_HH__ 3012854Sgabeblack@google.com#define __MEM_RUBY_SYSTEM_PERSISTENTTABLE_HH__ 3112854Sgabeblack@google.com 3212854Sgabeblack@google.com#include <iostream> 3312854Sgabeblack@google.com 3412854Sgabeblack@google.com#include "base/hashmap.hh" 3512854Sgabeblack@google.com#include "mem/protocol/AccessType.hh" 3612854Sgabeblack@google.com#include "mem/ruby/common/Address.hh" 3712854Sgabeblack@google.com#include "mem/ruby/common/Global.hh" 3812854Sgabeblack@google.com#include "mem/ruby/common/NetDest.hh" 3912854Sgabeblack@google.com#include "mem/ruby/system/MachineID.hh" 4012854Sgabeblack@google.com 4112854Sgabeblack@google.comclass PersistentTableEntry 4212854Sgabeblack@google.com{ 4312854Sgabeblack@google.com public: 4412854Sgabeblack@google.com void print(std::ostream& out) const {} 4512854Sgabeblack@google.com 4612854Sgabeblack@google.com NetDest m_starving; 4712854Sgabeblack@google.com NetDest m_marked; 4812854Sgabeblack@google.com NetDest m_request_to_write; 4912854Sgabeblack@google.com}; 5012854Sgabeblack@google.com 5112854Sgabeblack@google.comclass PersistentTable 5212854Sgabeblack@google.com{ 5312854Sgabeblack@google.com public: 5412854Sgabeblack@google.com // Constructors 5512854Sgabeblack@google.com PersistentTable(); 5612854Sgabeblack@google.com 5712854Sgabeblack@google.com // Destructor 5812854Sgabeblack@google.com ~PersistentTable(); 5912854Sgabeblack@google.com 6012854Sgabeblack@google.com // Public Methods 6112854Sgabeblack@google.com void persistentRequestLock(const Address& address, MachineID locker, 6212854Sgabeblack@google.com AccessType type); 6312854Sgabeblack@google.com void persistentRequestUnlock(const Address& address, MachineID unlocker); 6412854Sgabeblack@google.com bool okToIssueStarving(const Address& address, MachineID machID) const; 6512854Sgabeblack@google.com MachineID findSmallest(const Address& address) const; 6612854Sgabeblack@google.com AccessType typeOfSmallest(const Address& address) const; 6712854Sgabeblack@google.com void markEntries(const Address& address); 6812854Sgabeblack@google.com bool isLocked(const Address& addr) const; 6912854Sgabeblack@google.com int countStarvingForAddress(const Address& addr) const; 7012854Sgabeblack@google.com int countReadStarvingForAddress(const Address& addr) const; 7112854Sgabeblack@google.com 7212854Sgabeblack@google.com static void printConfig(std::ostream& out) {} 7312854Sgabeblack@google.com 7412854Sgabeblack@google.com void print(std::ostream& out) const; 7512854Sgabeblack@google.com 7612854Sgabeblack@google.com private: 7712854Sgabeblack@google.com // Private copy constructor and assignment operator 7812854Sgabeblack@google.com PersistentTable(const PersistentTable& obj); 7912854Sgabeblack@google.com PersistentTable& operator=(const PersistentTable& obj); 8012854Sgabeblack@google.com 8112854Sgabeblack@google.com // Data Members (m_prefix) 8212854Sgabeblack@google.com typedef m5::hash_map<Address, PersistentTableEntry> AddressMap; 8312854Sgabeblack@google.com AddressMap m_map; 8412854Sgabeblack@google.com}; 8512854Sgabeblack@google.com 8612854Sgabeblack@google.cominline std::ostream& 8712854Sgabeblack@google.comoperator<<(std::ostream& out, const PersistentTable& obj) 8812854Sgabeblack@google.com{ 8912854Sgabeblack@google.com obj.print(out); 9012854Sgabeblack@google.com out << std::flush; 9112854Sgabeblack@google.com return out; 9212854Sgabeblack@google.com} 9312854Sgabeblack@google.com 9412854Sgabeblack@google.cominline std::ostream& 9512854Sgabeblack@google.comoperator<<(std::ostream& out, const PersistentTableEntry& obj) 9612854Sgabeblack@google.com{ 9712854Sgabeblack@google.com obj.print(out); 9812854Sgabeblack@google.com out << std::flush; 9912854Sgabeblack@google.com return out; 10012854Sgabeblack@google.com} 10112854Sgabeblack@google.com 10212854Sgabeblack@google.com#endif // __MEM_RUBY_SYSTEM_PERSISTENTTABLE_HH__ 10312854Sgabeblack@google.com