io_device.hh (5386:5614618f4027) io_device.hh (5534:9eaf72819836)
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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84 Port *outPort;
85
86 /** Total number of bytes that this transaction involves. */
87 Addr totBytes;
88
89 /** Number of bytes that have been acked for this transaction. */
90 Addr numBytes;
91
1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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84 Port *outPort;
85
86 /** Total number of bytes that this transaction involves. */
87 Addr totBytes;
88
89 /** Number of bytes that have been acked for this transaction. */
90 Addr numBytes;
91
92 DmaReqState(Event *ce, Port *p, Addr tb)
93 : completionEvent(ce), outPort(p), totBytes(tb), numBytes(0)
92 /** Amount to delay completion of dma by */
93 Tick delay;
94
95 DmaReqState(Event *ce, Port *p, Addr tb, Tick _delay)
96 : completionEvent(ce), outPort(p), totBytes(tb), numBytes(0),
97 delay(_delay)
94 {}
95 };
96
97 DmaDevice *device;
98 std::list<PacketPtr> transmitList;
99
100 /** The system that device/port are in. This is used to select which mode
101 * we are currently operating in. */

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139
140 /** event to give us a kick every time we backoff time is reached. */
141 EventWrapper<DmaPort, &DmaPort::sendDma> backoffEvent;
142
143 public:
144 DmaPort(DmaDevice *dev, System *s);
145
146 void dmaAction(Packet::Command cmd, Addr addr, int size, Event *event,
98 {}
99 };
100
101 DmaDevice *device;
102 std::list<PacketPtr> transmitList;
103
104 /** The system that device/port are in. This is used to select which mode
105 * we are currently operating in. */

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143
144 /** event to give us a kick every time we backoff time is reached. */
145 EventWrapper<DmaPort, &DmaPort::sendDma> backoffEvent;
146
147 public:
148 DmaPort(DmaDevice *dev, System *s);
149
150 void dmaAction(Packet::Command cmd, Addr addr, int size, Event *event,
147 uint8_t *data = NULL);
151 uint8_t *data, Tick delay);
148
149 bool dmaPending() { return pendingCount > 0; }
150
151 int cacheBlockSize() { return peerBlockSize(); }
152 unsigned int drain(Event *de);
153};
154
155/**

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260 virtual ~DmaDevice();
261
262 const Params *
263 params() const
264 {
265 return dynamic_cast<const Params *>(_params);
266 }
267
152
153 bool dmaPending() { return pendingCount > 0; }
154
155 int cacheBlockSize() { return peerBlockSize(); }
156 unsigned int drain(Event *de);
157};
158
159/**

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264 virtual ~DmaDevice();
265
266 const Params *
267 params() const
268 {
269 return dynamic_cast<const Params *>(_params);
270 }
271
268 void dmaWrite(Addr addr, int size, Event *event, uint8_t *data)
272 void dmaWrite(Addr addr, int size, Event *event, uint8_t *data, Tick delay = 0)
269 {
273 {
270 dmaPort->dmaAction(MemCmd::WriteReq, addr, size, event, data);
274 dmaPort->dmaAction(MemCmd::WriteReq, addr, size, event, data, delay);
271 }
272
275 }
276
273 void dmaRead(Addr addr, int size, Event *event, uint8_t *data)
277 void dmaRead(Addr addr, int size, Event *event, uint8_t *data, Tick delay = 0)
274 {
278 {
275 dmaPort->dmaAction(MemCmd::ReadReq, addr, size, event, data);
279 dmaPort->dmaAction(MemCmd::ReadReq, addr, size, event, data, delay);
276 }
277
278 bool dmaPending() { return dmaPort->dmaPending(); }
279
280 virtual unsigned int drain(Event *de);
281
282 int cacheBlockSize() { return dmaPort->cacheBlockSize(); }
283

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281
282 bool dmaPending() { return dmaPort->dmaPending(); }
283
284 virtual unsigned int drain(Event *de);
285
286 int cacheBlockSize() { return dmaPort->cacheBlockSize(); }
287

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