cb7782f78d
This patch allows ruby to have multiple clock domains. As I understand with this patch, controllers can have different frequencies. The entire network needs to run at a single frequency. The idea is that with in an object, time is treated in terms of cycles. But the messages that are passed from one entity to another should contain the time in Ticks. As of now, this is only true for the message buffers, but not for the links in the network. As I understand the code, all the entities in different networks (simple, garnet-fixed, garnet-flexible) should be clocked at the same frequency. Another problem is that the directory controller has to operate at the same frequency as the ruby system. This is because the memory controller does not make use of the Message Buffer, and instead implements a buffer of its own. So, it has no idea of the frequency at which the directory controller is operating and uses ruby system's frequency for scheduling events.
98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
/*
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* Copyright (c) 2009 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_SLICC_INTERFACE_RUBY_REQUEST_HH__
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#define __MEM_RUBY_SLICC_INTERFACE_RUBY_REQUEST_HH__
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#include <ostream>
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#include "mem/protocol/Message.hh"
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#include "mem/protocol/PrefetchBit.hh"
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#include "mem/protocol/RubyAccessMode.hh"
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#include "mem/protocol/RubyRequestType.hh"
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#include "mem/ruby/common/Address.hh"
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class RubyRequest : public Message
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{
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public:
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Address m_PhysicalAddress;
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Address m_LineAddress;
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RubyRequestType m_Type;
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Address m_ProgramCounter;
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RubyAccessMode m_AccessMode;
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int m_Size;
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PrefetchBit m_Prefetch;
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uint8_t* data;
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PacketPtr pkt;
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unsigned m_contextId;
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RubyRequest(Tick curTime, uint64_t _paddr, uint8_t* _data, int _len,
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uint64_t _pc, RubyRequestType _type, RubyAccessMode _access_mode,
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PacketPtr _pkt, PrefetchBit _pb = PrefetchBit_No,
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unsigned _proc_id = 100)
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: Message(curTime),
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m_PhysicalAddress(_paddr),
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m_Type(_type),
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m_ProgramCounter(_pc),
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m_AccessMode(_access_mode),
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m_Size(_len),
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m_Prefetch(_pb),
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data(_data),
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pkt(_pkt),
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m_contextId(_proc_id)
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{
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m_LineAddress = m_PhysicalAddress;
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m_LineAddress.makeLineAddress();
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}
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RubyRequest(Tick curTime) : Message(curTime) {}
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RubyRequest* clone() const { return new RubyRequest(*this); }
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const Address& getLineAddress() const { return m_LineAddress; }
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const Address& getPhysicalAddress() const { return m_PhysicalAddress; }
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const RubyRequestType& getType() const { return m_Type; }
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const Address& getProgramCounter() const { return m_ProgramCounter; }
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const RubyAccessMode& getAccessMode() const { return m_AccessMode; }
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const int& getSize() const { return m_Size; }
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const PrefetchBit& getPrefetch() const { return m_Prefetch; }
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void print(std::ostream& out) const;
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bool functionalRead(Packet *pkt);
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bool functionalWrite(Packet *pkt);
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};
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inline std::ostream&
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operator<<(std::ostream& out, const RubyRequest& 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
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