| /* |
| * Copyright (c) 2002-2005 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: Steve Reinhardt |
| */ |
| |
| /** |
| * @file |
| * Port object definitions. |
| */ |
| #include <cstring> |
| |
| #include "base/chunk_generator.hh" |
| #include "base/trace.hh" |
| #include "mem/mem_object.hh" |
| #include "mem/port.hh" |
| |
| class DefaultPeerPort : public Port |
| { |
| protected: |
| void blowUp() const |
| { |
| fatal("%s: Unconnected port!", peer->name()); |
| } |
| |
| public: |
| DefaultPeerPort() |
| : Port("default_port", NULL) |
| { } |
| |
| bool recvTiming(PacketPtr) |
| { |
| blowUp(); |
| return false; |
| } |
| |
| Tick recvAtomic(PacketPtr) |
| { |
| blowUp(); |
| return 0; |
| } |
| |
| void recvFunctional(PacketPtr) |
| { |
| blowUp(); |
| } |
| |
| void recvStatusChange(Status) |
| { |
| blowUp(); |
| } |
| |
| unsigned |
| deviceBlockSize() const |
| { |
| blowUp(); |
| return 0; |
| } |
| |
| void getDeviceAddressRanges(AddrRangeList &, bool &) |
| { |
| blowUp(); |
| } |
| |
| bool isDefaultPort() const { return true; } |
| }; |
| |
| DefaultPeerPort defaultPeerPort; |
| |
| Port::Port(const std::string &_name, MemObject *_owner) |
| : EventManager(_owner), portName(_name), peer(&defaultPeerPort), |
| owner(_owner) |
| { |
| } |
| |
| Port::~Port() |
| { |
| } |
| |
| void |
| Port::setPeer(Port *port) |
| { |
| DPRINTF(Config, "setting peer to %s\n", port->name()); |
| |
| peer = port; |
| } |
| |
| void |
| Port::setOwner(MemObject *_owner) |
| { |
| eventq = _owner->queue(); |
| owner = _owner; |
| } |
| |
| void |
| Port::removeConn() |
| { |
| if (peer->getOwner()) |
| peer->getOwner()->deletePortRefs(peer); |
| peer = NULL; |
| } |
| |
| void |
| Port::blobHelper(Addr addr, uint8_t *p, int size, MemCmd cmd) |
| { |
| Request req; |
| |
| for (ChunkGenerator gen(addr, size, peerBlockSize()); |
| !gen.done(); gen.next()) { |
| req.setPhys(gen.addr(), gen.size(), 0); |
| Packet pkt(&req, cmd, Packet::Broadcast); |
| pkt.dataStatic(p); |
| sendFunctional(&pkt); |
| p += gen.size(); |
| } |
| } |
| |
| void |
| Port::writeBlob(Addr addr, uint8_t *p, int size) |
| { |
| blobHelper(addr, p, size, MemCmd::WriteReq); |
| } |
| |
| void |
| Port::readBlob(Addr addr, uint8_t *p, int size) |
| { |
| blobHelper(addr, p, size, MemCmd::ReadReq); |
| } |
| |
| void |
| Port::memsetBlob(Addr addr, uint8_t val, int size) |
| { |
| // quick and dirty... |
| uint8_t *buf = new uint8_t[size]; |
| |
| std::memset(buf, val, size); |
| blobHelper(addr, buf, size, MemCmd::WriteReq); |
| |
| delete [] buf; |
| } |
| |
| |
| void |
| Port::printAddr(Addr a) |
| { |
| Request req(a, 1, 0); |
| Packet pkt(&req, MemCmd::PrintReq, Packet::Broadcast); |
| Packet::PrintReqState prs(std::cerr); |
| pkt.senderState = &prs; |
| |
| sendFunctional(&pkt); |
| } |