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/*
* Copyright (c) 2001-2005 The Regents of The University of Michigan
* Copyright (c) 2009 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.
*
* Authors: Daniel Sanchez
*/
#ifndef __RUBY_MEMORY_HH__
#define __RUBY_MEMORY_HH__
#include <map>
#include <vector>
#include "base/callback.hh"
#include "mem/packet.hh"
#include "mem/physical.hh"
#include "mem/ruby/system/RubyPort.hh"
#include "params/RubyMemory.hh"
#include "mem/port.hh"
class RubyExitCallback;
class RubyMemory : public PhysicalMemory
{
public:
std::vector<RubyPort *> ruby_ports;
std::vector<RubyPort *> ruby_dma_ports;
class Port : public MemoryPort
{
friend void ruby_hit_callback(int64_t req_id);
RubyMemory *ruby_mem;
RubyPort *ruby_port;
public:
Port(const std::string &_name,
RubyMemory *_memory,
RubyPort *_port);
bool sendTiming(PacketPtr pkt);
void hitCallback(PacketPtr pkt);
protected:
virtual bool recvTiming(PacketPtr pkt);
private:
bool isPioAddress(Addr addr);
};
class RubyEvent : public Event
{
RubyMemory *ruby_ptr;
public:
RubyEvent(RubyMemory *p)
: Event(), ruby_ptr(p) {}
virtual void process() { ruby_ptr->tick(); }
virtual const char *description() const { return "ruby tick"; }
};
struct SenderState : public Packet::SenderState
{
Port *port;
Packet::SenderState *saved;
SenderState(Port *p, Packet::SenderState *s = NULL)
: port(p), saved(s)
{}
};
private:
// prevent copying of a RubyMemory object
RubyMemory(const RubyMemory &specmem);
const RubyMemory &operator=(const RubyMemory &specmem);
RubyEvent* rubyTickEvent;
public:
typedef RubyMemoryParams Params;
RubyMemory(const Params *p);
virtual ~RubyMemory();
const Params *
params() const
{
return safe_cast<const Params *>(_params);
}
public:
virtual ::Port *getPort(const std::string &if_name, int idx = -1);
void virtual init();
//Ruby-related specifics
void printConfigStats(); //dsm: Maybe this function should
//disappear once the configuration
//options change & M5 determines the
//stats file to use
void printStats(std::ostream & out) const;
void clearStats();
void printConfig(std::ostream & out) const;
void tick();
private:
Tick ruby_clock;
Tick ruby_phase;
RubyExitCallback* rubyExitCB;
int ports_per_cpu;
public:
static std::map<int64_t, PacketPtr> pending_requests;
RubyMemory::Port* pio_port;
protected:
std::vector<MemoryPort*> dma_ports;
public:
virtual void serialize(std::ostream &os);
virtual void unserialize(Checkpoint *cp, const std::string §ion);
};
void ruby_hit_callback(int64_t);
class RubyExitCallback : public Callback
{
private:
RubyMemory* ruby;
public:
/**
* virtualize the destructor to make sure that the correct one
* gets called.
*/
virtual ~RubyExitCallback() {};
RubyExitCallback(RubyMemory* rm) {ruby=rm;};
/**
* virtual process function that is invoked when the callback
* queue is executed.
*/
virtual void process() {ruby->printConfigStats(); /*delete ruby; was doing double delete...*/};
};
#endif //__RUBY_MEMORY_HH__
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