diff options
Diffstat (limited to 'src/dev/dma_device.cc')
| -rw-r--r-- | src/dev/dma_device.cc | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/dev/dma_device.cc b/src/dev/dma_device.cc index 5033c3617..d53ea2546 100644 --- a/src/dev/dma_device.cc +++ b/src/dev/dma_device.cc @@ -152,7 +152,7 @@ DmaPort::recvRetry() trySendTimingReq(); } -void +RequestPtr DmaPort::dmaAction(Packet::Command cmd, Addr addr, int size, Event *event, uint8_t *data, Tick delay, Request::Flags flag) { @@ -161,11 +161,17 @@ DmaPort::dmaAction(Packet::Command cmd, Addr addr, int size, Event *event, // i.e. cache line size DmaReqState *reqState = new DmaReqState(event, size, delay); + // (functionality added for Table Walker statistics) + // We're only interested in this when there will only be one request. + // For simplicity, we return the last request, which would also be + // the only request in that case. + RequestPtr req = NULL; + DPRINTF(DMA, "Starting DMA for addr: %#x size: %d sched: %d\n", addr, size, event ? event->scheduled() : -1); for (ChunkGenerator gen(addr, size, sys->cacheLineSize()); !gen.done(); gen.next()) { - Request *req = new Request(gen.addr(), gen.size(), flag, masterId); + req = new Request(gen.addr(), gen.size(), flag, masterId); req->taskId(ContextSwitchTaskId::DMA); PacketPtr pkt = new Packet(req, cmd); @@ -184,6 +190,8 @@ DmaPort::dmaAction(Packet::Command cmd, Addr addr, int size, Event *event, // just created, for atomic this involves actually completing all // the requests sendDma(); + + return req; } void |