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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* Copyright (c) 2012 Advanced Micro Devices, Inc.
* 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_ABSTRACT_MEMORY_CONTROL_HH__
#define __MEM_RUBY_SYSTEM_ABSTRACT_MEMORY_CONTROL_HH__
#include <iostream>
#include <list>
#include <string>
#include "mem/protocol/MemoryControlRequestType.hh"
#include "mem/ruby/common/Consumer.hh"
#include "mem/ruby/slicc_interface/Message.hh"
#include "mem/ruby/system/MemoryNode.hh"
#include "params/MemoryControl.hh"
#include "sim/clocked_object.hh"
//////////////////////////////////////////////////////////////////////////////
class MemoryControl : public ClockedObject, public Consumer
{
public:
typedef MemoryControlParams Params;
const Params *params() const
{ return dynamic_cast<const Params *>(_params); }
MemoryControl(const Params *p);
virtual void init() = 0;
virtual void reset() = 0;
~MemoryControl();
virtual void wakeup() = 0;
virtual void setConsumer(Consumer* consumer_ptr) = 0;
virtual Consumer* getConsumer() = 0;
virtual void setClockObj(ClockedObject* consumer_ptr) {}
virtual void setDescription(const std::string& name) = 0;
virtual std::string getDescription() = 0;
// Called from the directory:
virtual void enqueue(const MsgPtr& message, Cycles latency) = 0;
virtual void enqueueMemRef(MemoryNode& memRef) = 0;
virtual void dequeue() = 0;
virtual const Message* peek() = 0;
virtual MemoryNode peekNode() = 0;
virtual bool isReady() = 0;
virtual bool areNSlotsAvailable(int n) = 0; // infinite queue length
virtual void print(std::ostream& out) const = 0;
virtual void regStats() {};
virtual const int getChannel(const physical_address_t addr) const = 0;
virtual const int getBank(const physical_address_t addr) const = 0;
virtual const int getRank(const physical_address_t addr) const = 0;
virtual const int getRow(const physical_address_t addr) const = 0;
//added by SS
virtual int getBanksPerRank() = 0;
virtual int getRanksPerDimm() = 0;
virtual int getDimmsPerChannel() = 0;
virtual void recordRequestType(MemoryControlRequestType requestType);
virtual bool functionalReadBuffers(Packet *pkt)
{ fatal("Functional read access not implemented!");}
virtual uint32_t functionalWriteBuffers(Packet *pkt)
{ fatal("Functional read access not implemented!");}
protected:
class MemCntrlEvent : public Event
{
public:
MemCntrlEvent(MemoryControl* _mem_cntrl)
{
mem_cntrl = _mem_cntrl;
}
private:
void process() { mem_cntrl->wakeup(); }
MemoryControl* mem_cntrl;
};
MemCntrlEvent m_event;
};
#endif // __MEM_RUBY_SYSTEM_ABSTRACT_MEMORY_CONTROL_HH__
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