c08351f4d3
Now that the gem5 protocols are split out, it would be nice to put them in their own protocol directory. It's also confusing to have files called *_protocol which are not in the protocol directory. Change-Id: I7475ee111630050a2421816dfd290921baab9f71 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20230 Reviewed-by: Gabe Black <gabeblack@google.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
101 lines
3.4 KiB
C++
101 lines
3.4 KiB
C++
/*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MEM_RUBY_STRUCTURES_PERSISTENTTABLE_HH__
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#define __MEM_RUBY_STRUCTURES_PERSISTENTTABLE_HH__
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#include <iostream>
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#include <unordered_map>
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#include "mem/ruby/common/Address.hh"
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#include "mem/ruby/common/MachineID.hh"
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#include "mem/ruby/common/NetDest.hh"
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#include "mem/ruby/protocol/AccessType.hh"
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class PersistentTableEntry
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{
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public:
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PersistentTableEntry() {}
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void print(std::ostream& out) const {}
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NetDest m_starving;
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NetDest m_marked;
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NetDest m_request_to_write;
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};
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class PersistentTable
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{
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public:
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// Constructors
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PersistentTable();
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// Destructor
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~PersistentTable();
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// Public Methods
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void persistentRequestLock(Addr address, MachineID locker,
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AccessType type);
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void persistentRequestUnlock(Addr address, MachineID unlocker);
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bool okToIssueStarving(Addr address, MachineID machID) const;
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MachineID findSmallest(Addr address) const;
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AccessType typeOfSmallest(Addr address) const;
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void markEntries(Addr address);
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bool isLocked(Addr addr) const;
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int countStarvingForAddress(Addr addr) const;
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int countReadStarvingForAddress(Addr addr) const;
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void print(std::ostream& out) const;
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private:
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// Private copy constructor and assignment operator
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PersistentTable(const PersistentTable& obj);
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PersistentTable& operator=(const PersistentTable& obj);
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// Data Members (m_prefix)
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typedef std::unordered_map<Addr, PersistentTableEntry> AddressMap;
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AddressMap m_map;
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};
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inline std::ostream&
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operator<<(std::ostream& out, const PersistentTable& obj)
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{
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obj.print(out);
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out << std::flush;
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return out;
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}
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inline std::ostream&
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operator<<(std::ostream& out, const PersistentTableEntry& obj)
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{
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obj.print(out);
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out << std::flush;
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return out;
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}
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#endif // __MEM_RUBY_STRUCTURES_PERSISTENTTABLE_HH__
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