1/*
2 * Copyright (c) 2012 ARM Limited
3 * All rights reserved.
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software

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82
83 /** Number of outstanding packets the dma port has. */
84 int pendingCount;
85
86 /** If we need to drain, keep the drain event around until we're done
87 * here.*/
88 Event *drainEvent;
89
90 /** If the port is currently waiting for a retry before it can send whatever
91 * it is that it's sending. */
92 bool inRetry;
93
94 virtual bool recvTimingResp(PacketPtr pkt);
95
96 virtual void recvRetry() ;
97
98 void queueDma(PacketPtr pkt, bool front = false);
99 void sendDma();
100
101 public:
102
103 DmaPort(MemObject *dev, System *s);
104
105 void dmaAction(Packet::Command cmd, Addr addr, int size, Event *event,
106 uint8_t *data, Tick delay, Request::Flags flag = 0);
107
108 bool dmaPending() { return pendingCount > 0; }
109
110 unsigned cacheBlockSize() const { return peerBlockSize(); }
111 unsigned int drain(Event *de);
112};

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