mem-cache: Add match functions to QueueEntry

[gem5.git] / src / mem / port.cc

diff --git a/src/mem/port.cc b/src/mem/port.cc
index 3305541c72b5e2b00698f6b859e6c917dd768d68..933e98243947d0798d12ae58516979670314d40a 100644 (file)
--- a/src/mem/port.cc
+++ b/src/mem/port.cc
@@ -1,5 +1,5 @@
 /*
- * 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
@@ -46,24 +46,54 @@
  * @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)
-    : portName(_name), peer(NULL), owner(_owner)
+BaseMasterPort::BaseMasterPort(const std::string &name, PortID _id)
+    : Port(name, _id), _baseSlavePort(NULL)
+{
+}
+
+BaseMasterPort::~BaseMasterPort()
+{
+}
+
+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)
+{
+}
+
+BaseSlavePort::~BaseSlavePort()
 {
 }
 
-Port::~Port()
+BaseMasterPort&
+BaseSlavePort::getMasterPort() const
 {
+    if (_baseMasterPort == NULL)
+        panic("Cannot getMasterPort on slave port %s that is not connected\n",
+              name());
+
+    return *_baseMasterPort;
 }
 
 /**
  * Master port
  */
-MasterPort::MasterPort(const std::string& name, MemObject* owner)
-    : Port(name, *owner), _slavePort(NULL)
+MasterPort::MasterPort(const std::string& name, MemObject* _owner, PortID _id)
+    : BaseMasterPort(name, _id), _slavePort(NULL), owner(*_owner)
 {
 }
 
@@ -71,44 +101,97 @@ MasterPort::~MasterPort()
 {
 }
 
-SlavePort&
-MasterPort::getSlavePort() const
+void
+MasterPort::bind(Port &peer)
 {
-    if(_slavePort == NULL)
-        panic("Cannot getSlavePort on master port %s that is not connected\n",
+    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);
+}
+
+void
+MasterPort::unbind()
+{
+    if (_slavePort == NULL)
+        panic("Attempting to unbind master port %s that is not connected\n",
               name());
+    _slavePort->slaveUnbind();
+    _slavePort = NULL;
+    _connected = false;
+    _baseSlavePort = NULL;
+}
 
-    return *_slavePort;
+AddrRangeList
+MasterPort::getAddrRanges() const
+{
+    return _slavePort->getAddrRanges();
+}
+
+Tick
+MasterPort::sendAtomic(PacketPtr pkt)
+{
+    assert(pkt->isRequest());
+    return _slavePort->recvAtomic(pkt);
+}
+
+Tick
+MasterPort::sendAtomicBackdoor(PacketPtr pkt, MemBackdoorPtr &backdoor)
+{
+    assert(pkt->isRequest());
+    return _slavePort->recvAtomicBackdoor(pkt, backdoor);
 }
 
 void
-MasterPort::bind(SlavePort& slave_port)
+MasterPort::sendFunctional(PacketPtr pkt)
 {
-    // master port keeps track of the slave port
-    _slavePort = &slave_port;
-    peer = &slave_port;
+    assert(pkt->isRequest());
+    return _slavePort->recvFunctional(pkt);
+}
 
-    // slave port also keeps track of master port
-    _slavePort->bind(*this);
+bool
+MasterPort::sendTimingReq(PacketPtr pkt)
+{
+    assert(pkt->isRequest());
+    return _slavePort->recvTimingReq(pkt);
+}
+
+bool
+MasterPort::tryTiming(PacketPtr pkt) const
+{
+  assert(pkt->isRequest());
+  return _slavePort->tryTiming(pkt);
 }
 
 bool
-MasterPort::isConnected() const
+MasterPort::sendTimingSnoopResp(PacketPtr pkt)
 {
-    return _slavePort != NULL;
+    assert(pkt->isResponse());
+    return _slavePort->recvTimingSnoopResp(pkt);
 }
 
-unsigned
-MasterPort::peerBlockSize() const
+void
+MasterPort::sendRetryResp()
 {
-    return _slavePort->deviceBlockSize();
+    _slavePort->recvRespRetry();
 }
 
- void
+void
 MasterPort::printAddr(Addr a)
 {
-    Request req(a, 1, 0, Request::funcMasterId);
-    Packet pkt(&req, MemCmd::PrintReq, Packet::Broadcast);
+    auto req = std::make_shared<Request>(
+        a, 1, 0, Request::funcMasterId);
+
+    Packet pkt(req, MemCmd::PrintReq);
     Packet::PrintReqState prs(std::cerr);
     pkt.senderState = &prs;
 
@@ -118,8 +201,9 @@ MasterPort::printAddr(Addr a)
 /**
  * Slave port
  */
-SlavePort::SlavePort(const std::string& name, MemObject* owner)
-    : Port(name, *owner), _masterPort(NULL)
+SlavePort::SlavePort(const std::string& name, MemObject* _owner, PortID id)
+    : BaseSlavePort(name, id), _masterPort(NULL), defaultBackdoorWarned(false),
+    owner(*_owner)
 {
 }
 
@@ -128,30 +212,67 @@ SlavePort::~SlavePort()
 }
 
 void
-SlavePort::bind(MasterPort& master_port)
+SlavePort::slaveUnbind()
+{
+    _baseMasterPort = NULL;
+    _masterPort = NULL;
+    _connected = false;
+}
+
+void
+SlavePort::slaveBind(MasterPort& master_port)
 {
+    _baseMasterPort = &master_port;
     _masterPort = &master_port;
-    peer = &master_port;
+    _connected = true;
 }
 
-MasterPort&
-SlavePort::getMasterPort() const
+Tick
+SlavePort::recvAtomicBackdoor(PacketPtr pkt, MemBackdoorPtr &backdoor)
 {
-    if (_masterPort == NULL)
-        panic("Cannot getMasterPort on slave port %s that is not connected\n",
-              name());
+    if (!defaultBackdoorWarned) {
+        warn("Port %s doesn't support requesting a back door.", name());
+        defaultBackdoorWarned = true;
+    }
+    return recvAtomic(pkt);
+}
 
-    return *_masterPort;
+Tick
+SlavePort::sendAtomicSnoop(PacketPtr pkt)
+{
+    assert(pkt->isRequest());
+    return _masterPort->recvAtomicSnoop(pkt);
 }
 
-unsigned
-SlavePort::peerBlockSize() const
+void
+SlavePort::sendFunctionalSnoop(PacketPtr pkt)
 {
-    return _masterPort->deviceBlockSize();
+    assert(pkt->isRequest());
+    return _masterPort->recvFunctionalSnoop(pkt);
 }
 
 bool
-SlavePort::isConnected() const
+SlavePort::sendTimingResp(PacketPtr pkt)
+{
+    assert(pkt->isResponse());
+    return _masterPort->recvTimingResp(pkt);
+}
+
+void
+SlavePort::sendTimingSnoopReq(PacketPtr pkt)
+{
+    assert(pkt->isRequest());
+    _masterPort->recvTimingSnoopReq(pkt);
+}
+
+void
+SlavePort::sendRetryReq()
+{
+    _masterPort->recvReqRetry();
+}
+
+void
+SlavePort::sendRetrySnoopResp()
 {
-    return _masterPort != NULL;
+    _masterPort->recvRetrySnoopResp();
 }