diff options
Diffstat (limited to 'dev/io_device.cc')
| -rw-r--r-- | dev/io_device.cc | 238 |
1 files changed, 0 insertions, 238 deletions
diff --git a/dev/io_device.cc b/dev/io_device.cc deleted file mode 100644 index 634b11b7e..000000000 --- a/dev/io_device.cc +++ /dev/null @@ -1,238 +0,0 @@ -/* - * Copyright (c) 2006 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. - */ - -#include "dev/io_device.hh" -#include "sim/builder.hh" - - -PioPort::PioPort(PioDevice *dev, Platform *p) - : device(dev), platform(p) -{ } - - -Tick -PioPort::recvAtomic(Packet *pkt) -{ - return device->recvAtomic(pkt); -} - -void -PioPort::recvFunctional(Packet *pkt) -{ - device->recvAtomic(pkt); -} - -void -PioPort::getDeviceAddressRanges(AddrRangeList &resp, AddrRangeList &snoop) -{ - snoop.clear(); - device->addressRanges(resp); -} - - -Packet * -PioPort::recvRetry() -{ - Packet* pkt = transmitList.front(); - transmitList.pop_front(); - return pkt; -} - - -void -PioPort::SendEvent::process() -{ - if (port->Port::sendTiming(packet) == Success) - return; - - port->transmitList.push_back(packet); -} - - -bool -PioPort::recvTiming(Packet *pkt) -{ - device->recvAtomic(pkt); - sendTiming(pkt, pkt->time - pkt->req->getTime()); - return Success; -} - -PioDevice::~PioDevice() -{ - if (pioPort) - delete pioPort; -} - -void -PioDevice::init() -{ - if (!pioPort) - panic("Pio port not connected to anything!"); - pioPort->sendStatusChange(Port::RangeChange); -} - -void -BasicPioDevice::addressRanges(AddrRangeList &range_list) -{ - assert(pioSize != 0); - range_list.clear(); - range_list.push_back(RangeSize(pioAddr, pioSize)); -} - - -DmaPort::DmaPort(DmaDevice *dev, Platform *p) - : device(dev), platform(p), pendingCount(0) -{ } - -bool -DmaPort::recvTiming(Packet *pkt) -{ - if (pkt->senderState) { - DmaReqState *state; - state = (DmaReqState*)pkt->senderState; - state->completionEvent->schedule(pkt->time - pkt->req->getTime()); - delete pkt->req; - delete pkt; - } else { - delete pkt->req; - delete pkt; - } - - return Success; -} - -DmaDevice::DmaDevice(Params *p) - : PioDevice(p), dmaPort(NULL) -{ } - -void -DmaPort::SendEvent::process() -{ - if (port->Port::sendTiming(packet) == Success) - return; - - port->transmitList.push_back(packet); -} - -Packet * -DmaPort::recvRetry() -{ - Packet* pkt = transmitList.front(); - transmitList.pop_front(); - return pkt; -} -void -DmaPort::dmaAction(Command cmd, Addr addr, int size, Event *event, - uint8_t *data) -{ - - assert(event); - - int prevSize = 0; - Packet basePkt; - Request baseReq(false); - - basePkt.flags = 0; - basePkt.coherence = NULL; - basePkt.senderState = NULL; - basePkt.dest = Packet::Broadcast; - basePkt.cmd = cmd; - basePkt.result = Unknown; - basePkt.req = NULL; -// baseReq.nicReq = true; - baseReq.setTime(curTick); - - for (ChunkGenerator gen(addr, size, peerBlockSize()); - !gen.done(); gen.next()) { - Packet *pkt = new Packet(basePkt); - Request *req = new Request(baseReq); - pkt->addr = gen.addr(); - pkt->size = gen.size(); - pkt->req = req; - pkt->req->setPaddr(pkt->addr); - pkt->req->setSize(pkt->size); - // Increment the data pointer on a write - if (data) - pkt->dataStatic(data + prevSize) ; - prevSize += pkt->size; - // Set the last bit of the dma as the final packet for this dma - // and set it's completion event. - if (prevSize == size) { - DmaReqState *state = new DmaReqState(event, true); - - pkt->senderState = (void*)state; - } - assert(pendingCount >= 0); - pendingCount++; - sendDma(pkt); - } - // since this isn't getting used and we want a check to make sure that all - // packets had data in them at some point. - basePkt.dataStatic((uint8_t*)NULL); -} - - -void -DmaPort::sendDma(Packet *pkt) -{ - // some kind of selction between access methods - // more work is going to have to be done to make - // switching actually work - /* MemState state = device->platform->system->memState; - - if (state == Timing) { - if (sendTiming(pkt) == Failure) - transmitList.push_back(&packet); - } else if (state == Atomic) {*/ - sendAtomic(pkt); - if (pkt->senderState) { - DmaReqState *state = (DmaReqState*)pkt->senderState; - state->completionEvent->schedule(curTick + (pkt->time - pkt->req->getTime()) +1); - } - pendingCount--; - assert(pendingCount >= 0); - delete pkt->req; - delete pkt; - -/* } else if (state == Functional) { - sendFunctional(pkt); - // Is this correct??? - completionEvent->schedule(pkt->req->responseTime - pkt->req->requestTime); - completionEvent == NULL; - } else - panic("Unknown memory command state."); - */ -} - -DmaDevice::~DmaDevice() -{ - if (dmaPort) - delete dmaPort; -} - - |