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/*
* Copyright (c) 2008 The Regents of The University of Michigan
* 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: Gabe Black
*/
#ifndef __DEV_X86_INTDEV_HH__
#define __DEV_X86_INTDEV_HH__
#include <cassert>
#include <string>
#include "arch/x86/x86_traits.hh"
#include "arch/x86/intmessage.hh"
#include "mem/mem_object.hh"
#include "mem/mport.hh"
#include "sim/sim_object.hh"
#include "params/X86IntSourcePin.hh"
#include "params/X86IntSinkPin.hh"
#include "params/X86IntLine.hh"
#include <list>
namespace X86ISA {
typedef std::list<int> ApicList;
class IntDev
{
protected:
class IntPort : public MessagePort
{
IntDev * device;
Tick latency;
Addr intAddr;
public:
IntPort(const std::string &_name, MemObject * _parent,
IntDev *dev, Tick _latency) :
MessagePort(_name, _parent), device(dev), latency(_latency)
{
}
void getDeviceAddressRanges(AddrRangeList &resp, bool &snoop)
{
snoop = false;
device->getIntAddrRange(resp);
}
Tick recvMessage(PacketPtr pkt)
{
return device->recvMessage(pkt);
}
Tick recvResponse(PacketPtr pkt)
{
return device->recvResponse(pkt);
}
// This is x86 focused, so if this class becomes generic, this would
// need to be moved into a subclass.
void sendMessage(ApicList apics,
TriggerIntMessage message, bool timing);
void recvStatusChange(Status status)
{
if (status == RangeChange) {
sendStatusChange(Port::RangeChange);
}
}
};
IntPort * intPort;
public:
IntDev(MemObject * parent, Tick latency = 0)
{
if (parent != NULL) {
intPort = new IntPort(parent->name() + ".int_port",
parent, this, latency);
} else {
intPort = NULL;
}
}
virtual ~IntDev()
{}
virtual void
signalInterrupt(int line)
{
panic("signalInterrupt not implemented.\n");
}
virtual void
raiseInterruptPin(int number)
{
panic("raiseInterruptPin not implemented.\n");
}
virtual void
lowerInterruptPin(int number)
{
panic("lowerInterruptPin not implemented.\n");
}
virtual Tick
recvMessage(PacketPtr pkt)
{
panic("recvMessage not implemented.\n");
return 0;
}
virtual Tick
recvResponse(PacketPtr pkt)
{
delete pkt->req;
delete pkt;
return 0;
}
virtual void
getIntAddrRange(AddrRangeList &range_list)
{
panic("intAddrRange not implemented.\n");
}
};
class IntSinkPin : public SimObject
{
public:
IntDev * device;
int number;
typedef X86IntSinkPinParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
IntSinkPin(Params *p) : SimObject(p),
device(dynamic_cast<IntDev *>(p->device)), number(p->number)
{
assert(device);
}
};
class IntSourcePin : public SimObject
{
protected:
std::vector<IntSinkPin *> sinks;
public:
typedef X86IntSourcePinParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
void
addSink(IntSinkPin *sink)
{
sinks.push_back(sink);
}
void
raise()
{
for (int i = 0; i < sinks.size(); i++) {
const IntSinkPin &pin = *sinks[i];
pin.device->raiseInterruptPin(pin.number);
}
}
void
lower()
{
for (int i = 0; i < sinks.size(); i++) {
const IntSinkPin &pin = *sinks[i];
pin.device->lowerInterruptPin(pin.number);
}
}
IntSourcePin(Params *p) : SimObject(p)
{}
};
class IntLine : public SimObject
{
protected:
IntSourcePin *source;
IntSinkPin *sink;
public:
typedef X86IntLineParams Params;
const Params *
params() const
{
return dynamic_cast<const Params *>(_params);
}
IntLine(Params *p) : SimObject(p), source(p->source), sink(p->sink)
{
source->addSink(sink);
}
};
} // namespace X86ISA
#endif //__DEV_X86_INTDEV_HH__
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