thread_bridge.cc

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#include "mem/thread_bridge.hh"
 
#include "base/trace.hh"
#include "sim/eventq.hh"
 
namespace gem5
{
 
ThreadBridge::ThreadBridge(const ThreadBridgeParams &p)
    : SimObject(p), in_port_("in_port", *this), out_port_("out_port", *this)
{
}
 
ThreadBridge::IncomingPort::IncomingPort(const std::string &name,
                                         ThreadBridge &device)
    : ResponsePort(name, &device), device_(device)
{
}
 
AddrRangeList
ThreadBridge::IncomingPort::getAddrRanges() const
{
    return device_.out_port_.getAddrRanges();
}
 
// TimingResponseProtocol
bool
ThreadBridge::IncomingPort::recvTimingReq(PacketPtr pkt)
{
    panic("ThreadBridge only supports atomic/functional access.");
}
void
ThreadBridge::IncomingPort::recvRespRetry()
{
    panic("ThreadBridge only supports atomic/functional access.");
}
 
// AtomicResponseProtocol
Tick
ThreadBridge::IncomingPort::recvAtomicBackdoor(PacketPtr pkt,
                                               MemBackdoorPtr &backdoor)
{
    panic("ThreadBridge only supports atomic/functional access.");
}
Tick
ThreadBridge::IncomingPort::recvAtomic(PacketPtr pkt)
{
    EventQueue::ScopedMigration migrate(device_.eventQueue());
    return device_.out_port_.sendAtomic(pkt);
}
 
// FunctionalResponseProtocol
void
ThreadBridge::IncomingPort::recvFunctional(PacketPtr pkt)
{
    EventQueue::ScopedMigration migrate(device_.eventQueue());
    device_.out_port_.sendFunctional(pkt);
}
 
ThreadBridge::OutgoingPort::OutgoingPort(const std::string &name,
                                         ThreadBridge &device)
    : RequestPort(name, &device), device_(device)
{
}
 
void
ThreadBridge::OutgoingPort::recvRangeChange()
{
    device_.in_port_.sendRangeChange();
}
 
// TimingRequestProtocol
bool
ThreadBridge::OutgoingPort::recvTimingResp(PacketPtr pkt)
{
    panic("ThreadBridge only supports atomic/functional access.");
}
void
ThreadBridge::OutgoingPort::recvReqRetry()
{
    panic("ThreadBridge only supports atomic/functional access.");
}
 
Port &
ThreadBridge::getPort(const std::string &if_name, PortID idx)
{
    if (if_name == "in_port")
        return in_port_;
    if (if_name == "out_port")
        return out_port_;
    return SimObject::getPort(if_name, idx);
}
 
}  // namespace gem5