/*
- * Copyright (c) 2012 ARM Limited
+ * Copyright (c) 2012,2015,2017 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* @file
* Port object definitions.
*/
+#include "mem/port.hh"
+
#include "base/trace.hh"
#include "mem/mem_object.hh"
-#include "mem/port.hh"
-Port::Port(const std::string &_name, MemObject& _owner, PortID _id)
- : portName(_name), id(_id), owner(_owner)
+BaseMasterPort::BaseMasterPort(const std::string &name, PortID _id)
+ : Port(name, _id), _baseSlavePort(NULL)
{
}
-Port::~Port()
+BaseMasterPort::~BaseMasterPort()
{
}
-/**
- * Master port
- */
-MasterPort::MasterPort(const std::string& name, MemObject* owner, PortID _id)
- : Port(name, *owner, _id), _slavePort(NULL)
+BaseSlavePort&
+BaseMasterPort::getSlavePort() const
+{
+ if (_baseSlavePort == NULL)
+ panic("Cannot getSlavePort on master port %s that is not connected\n",
+ name());
+
+ return *_baseSlavePort;
+}
+
+BaseSlavePort::BaseSlavePort(const std::string &name, PortID _id)
+ : Port(name, _id), _baseMasterPort(NULL)
{
}
-MasterPort::~MasterPort()
+BaseSlavePort::~BaseSlavePort()
{
}
-SlavePort&
-MasterPort::getSlavePort() const
+BaseMasterPort&
+BaseSlavePort::getMasterPort() const
{
- if(_slavePort == NULL)
- panic("Cannot getSlavePort on master port %s that is not connected\n",
+ if (_baseMasterPort == NULL)
+ panic("Cannot getMasterPort on slave port %s that is not connected\n",
name());
- return *_slavePort;
+ return *_baseMasterPort;
}
-void
-MasterPort::bind(SlavePort& slave_port)
+/**
+ * Master port
+ */
+MasterPort::MasterPort(const std::string& name, MemObject* _owner, PortID _id)
+ : BaseMasterPort(name, _id), _slavePort(NULL), owner(*_owner)
{
- // master port keeps track of the slave port
- _slavePort = &slave_port;
+}
- // slave port also keeps track of master port
- _slavePort->bind(*this);
+MasterPort::~MasterPort()
+{
}
-bool
-MasterPort::isConnected() const
+void
+MasterPort::bind(Port &peer)
{
- return _slavePort != NULL;
+ auto *slave_port = dynamic_cast<SlavePort *>(&peer);
+ if (!slave_port) {
+ fatal("Attempt to bind port %s to non-slave port %s.",
+ name(), peer.name());
+ }
+ // bind on the level of the base ports
+ _baseSlavePort = slave_port;
+
+ // master port keeps track of the slave port
+ _slavePort = slave_port;
+ _connected = true;
+ // slave port also keeps track of master port
+ _slavePort->slaveBind(*this);
}
-unsigned
-MasterPort::peerBlockSize() const
+void
+MasterPort::unbind()
{
- return _slavePort->deviceBlockSize();
+ if (_slavePort == NULL)
+ panic("Attempting to unbind master port %s that is not connected\n",
+ name());
+ _slavePort->slaveUnbind();
+ _slavePort = NULL;
+ _connected = false;
+ _baseSlavePort = NULL;
}
AddrRangeList
return _slavePort->recvAtomic(pkt);
}
+Tick
+MasterPort::sendAtomicBackdoor(PacketPtr pkt, MemBackdoorPtr &backdoor)
+{
+ assert(pkt->isRequest());
+ return _slavePort->recvAtomicBackdoor(pkt, backdoor);
+}
+
void
MasterPort::sendFunctional(PacketPtr pkt)
{
return _slavePort->recvTimingReq(pkt);
}
+bool
+MasterPort::tryTiming(PacketPtr pkt) const
+{
+ assert(pkt->isRequest());
+ return _slavePort->tryTiming(pkt);
+}
+
bool
MasterPort::sendTimingSnoopResp(PacketPtr pkt)
{
}
void
-MasterPort::sendRetry()
+MasterPort::sendRetryResp()
{
- _slavePort->recvRetry();
+ _slavePort->recvRespRetry();
}
void
MasterPort::printAddr(Addr a)
{
- Request req(a, 1, 0, Request::funcMasterId);
- Packet pkt(&req, MemCmd::PrintReq);
+ auto req = std::make_shared<Request>(
+ a, 1, 0, Request::funcMasterId);
+
+ Packet pkt(req, MemCmd::PrintReq);
Packet::PrintReqState prs(std::cerr);
pkt.senderState = &prs;
/**
* Slave port
*/
-SlavePort::SlavePort(const std::string& name, MemObject* owner, PortID id)
- : Port(name, *owner, id), _masterPort(NULL)
+SlavePort::SlavePort(const std::string& name, MemObject* _owner, PortID id)
+ : BaseSlavePort(name, id), _masterPort(NULL), defaultBackdoorWarned(false),
+ owner(*_owner)
{
}
}
void
-SlavePort::bind(MasterPort& master_port)
-{
- _masterPort = &master_port;
-}
-
-MasterPort&
-SlavePort::getMasterPort() const
+SlavePort::slaveUnbind()
{
- if (_masterPort == NULL)
- panic("Cannot getMasterPort on slave port %s that is not connected\n",
- name());
-
- return *_masterPort;
+ _baseMasterPort = NULL;
+ _masterPort = NULL;
+ _connected = false;
}
-unsigned
-SlavePort::peerBlockSize() const
+void
+SlavePort::slaveBind(MasterPort& master_port)
{
- return _masterPort->deviceBlockSize();
+ _baseMasterPort = &master_port;
+ _masterPort = &master_port;
+ _connected = true;
}
-bool
-SlavePort::isConnected() const
+Tick
+SlavePort::recvAtomicBackdoor(PacketPtr pkt, MemBackdoorPtr &backdoor)
{
- return _masterPort != NULL;
+ if (!defaultBackdoorWarned) {
+ warn("Port %s doesn't support requesting a back door.", name());
+ defaultBackdoorWarned = true;
+ }
+ return recvAtomic(pkt);
}
Tick
}
void
-SlavePort::sendRetry()
+SlavePort::sendRetryReq()
+{
+ _masterPort->recvReqRetry();
+}
+
+void
+SlavePort::sendRetrySnoopResp()
{
- _masterPort->recvRetry();
+ _masterPort->recvRetrySnoopResp();
}