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authorAli Saidi <saidi@eecs.umich.edu>2006-03-21 15:45:31 -0500
committerAli Saidi <saidi@eecs.umich.edu>2006-03-21 15:45:31 -0500
commit8654cfa427d7346d7164946b91ea768e1fd64310 (patch)
tree0b6d8029165e8c4316970cddc83e8fc33c6b79f4 /dev/io_device.cc
parent5c6835ae3fb398fe8aa83ac8b4c806dd6e800b44 (diff)
downloadgem5-8654cfa427d7346d7164946b91ea768e1fd64310.tar.xz
Make PioPort/DmaPort,DmaDevice/PioDevice compile.
Add another type to the PacketResult enum of Unknown Seperate time into requsetTime and responseTime. dev/io_device.cc: dev/io_device.hh: Make PioPort/DmaPort,DmaDevice/PioDevice compile. mem/packet.hh: Add another type to the PacketResult enum of Unknown (e.g. no state set yet) mem/request.hh: Seperate time into requsetTime and responseTime. --HG-- extra : convert_revision : c6394cb838013296caea6492275252b8cae2882f
Diffstat (limited to 'dev/io_device.cc')
-rw-r--r--dev/io_device.cc104
1 files changed, 79 insertions, 25 deletions
diff --git a/dev/io_device.cc b/dev/io_device.cc
index b580c2805..268484e57 100644
--- a/dev/io_device.cc
+++ b/dev/io_device.cc
@@ -29,10 +29,44 @@
#include "dev/io_device.hh"
#include "sim/builder.hh"
+
+PioPort::PioPort(PioDevice *dev)
+ : device(dev)
+{ }
+
+
+Tick
+PioPort::recvAtomic(Packet &pkt)
+{
+ return device->recvAtomic(pkt);
+}
+
+void
+PioPort::recvFunctional(Packet &pkt)
+{
+ device->recvAtomic(pkt);
+}
+
+void
+PioPort::getDeviceAddressRanges(AddrRangeList &range_list, bool &owner)
+{
+ device->addressRanges(range_list, owner);
+}
+
+
+Packet *
+PioPort::recvRetry()
+{
+ Packet* pkt = transmitList.front();
+ transmitList.pop_front();
+ return pkt;
+}
+
+
void
PioPort::SendEvent::process()
{
- if (port->sendTiming(packet) == Success)
+ if (port->Port::sendTiming(packet) == Success)
return;
port->transmitList.push_back(&packet);
@@ -46,37 +80,57 @@ PioDevice::PioDevice(const std::string &name, Platform *p)
bool
-PioDevice::recvTiming(Packet &pkt)
+PioPort::recvTiming(Packet &pkt)
{
device->recvAtomic(pkt);
- sendTiming(pkt, pkt.responseTime-pkt.requestTime);
+ sendTiming(pkt, pkt.req->responseTime-pkt.req->requestTime);
return Success;
}
PioDevice::~PioDevice()
{
if (pioPort)
- delete pioInterface;
+ delete pioPort;
}
-void
-DmaPort::sendDma(Packet &pkt)
+
+DmaPort::DmaPort(DmaDevice *dev)
+ : device(dev)
+{ }
+
+bool
+DmaPort::recvTiming(Packet &pkt)
{
- device->platform->system->memoryMode()
- {
- case MemAtomic:
- }
+ completionEvent->schedule(curTick+1);
+ completionEvent = NULL;
+ return Success;
}
DmaDevice::DmaDevice(const std::string &name, Platform *p)
: PioDevice(name, p)
{
- dmaPort = new dmaPort(this);
+ dmaPort = new DmaPort(this);
}
void
-DmaPort::dmaAction(Memory::Command cmd, DmaPort port, Addr addr, int size,
- Event *event, uint8_t *data = NULL)
+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, DmaPort port, Addr addr, int size,
+ Event *event, uint8_t *data)
{
assert(event);
@@ -92,9 +146,9 @@ DmaPort::dmaAction(Memory::Command cmd, DmaPort port, Addr addr, int size,
basePkt.dest = 0;
basePkt.cmd = cmd;
basePkt.result = Unknown;
- basePkt.request = NULL;
+ basePkt.req = NULL;
baseReq.nicReq = true;
- baseReq.time = curTick;
+ baseReq.requestTime = curTick;
completionEvent = event;
@@ -109,7 +163,7 @@ DmaPort::dmaAction(Memory::Command cmd, DmaPort port, Addr addr, int size,
pkt->req->size = pkt->size;
// Increment the data pointer on a write
pkt->data = data ? data + prevSize : NULL ;
- prevSize = pkt->size;
+ prevSize += pkt->size;
sendDma(*pkt);
}
@@ -122,29 +176,29 @@ 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;
+ /* MemState state = device->platform->system->memState;
if (state == Timing) {
if (sendTiming(pkt) == Failure)
transmitList.push_back(&packet);
- } else if (state == Atomic) {
+ } else if (state == Atomic) {*/
sendAtomic(pkt);
- completionEvent->schedule(pkt.responseTime - pkt.requestTime);
- completionEvent == NULL;
- } else if (state == Functional) {
+ completionEvent->schedule(pkt.req->responseTime - pkt.req->requestTime);
+ completionEvent = NULL;
+/* } else if (state == Functional) {
sendFunctional(pkt);
// Is this correct???
- completionEvent->schedule(pkt.responseTime - pkt.requestTime);
+ completionEvent->schedule(pkt.req->responseTime - pkt.req->requestTime);
completionEvent == NULL;
} else
panic("Unknown memory command state.");
-
+ */
}
DmaDevice::~DmaDevice()
{
- if (dmaInterface)
- delete dmaInterface;
+ if (dmaPort)
+ delete dmaPort;
}