1/*
2 * Copyright (c) 2011-2012 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2002-2005 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ron Dreslinski
41 * Andreas Hansson
42 * William Wang
43 */
44
45/**
46 * @file
47 * Port Object Declaration.
48 */
49
50#ifndef __MEM_PORT_HH__
51#define __MEM_PORT_HH__
52
53#include <list>
54
55#include "base/range.hh"
56#include "mem/packet.hh"
57
58/**
59 * This typedef is used to clean up getAddrRanges(). It's declared
60 * outside the Port object since it's also used by some mem objects.
61 * Eventually we should move this typedef to wherever Addr is
62 * defined.
63 */
64
65typedef std::list<Range<Addr> > AddrRangeList;
66typedef std::list<Range<Addr> >::iterator AddrRangeIter;
67
68class MemObject;
69
70/**
71 * Ports are used to interface memory objects to each other. A port is
72 * either a master or a slave and the connected peer is always of the
| 1/*
2 * Copyright (c) 2011-2012 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
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated
11 * unmodified and in its entirety in all distributions of the software,
12 * modified or unmodified, in source code or in binary form.
13 *
14 * Copyright (c) 2002-2005 The Regents of The University of Michigan
15 * All rights reserved.
16 *
17 * Redistribution and use in source and binary forms, with or without
18 * modification, are permitted provided that the following conditions are
19 * met: redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer;
21 * redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution;
24 * neither the name of the copyright holders nor the names of its
25 * contributors may be used to endorse or promote products derived from
26 * this software without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
32 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
33 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
34 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
35 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
36 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
37 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
38 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 *
40 * Authors: Ron Dreslinski
41 * Andreas Hansson
42 * William Wang
43 */
44
45/**
46 * @file
47 * Port Object Declaration.
48 */
49
50#ifndef __MEM_PORT_HH__
51#define __MEM_PORT_HH__
52
53#include <list>
54
55#include "base/range.hh"
56#include "mem/packet.hh"
57
58/**
59 * This typedef is used to clean up getAddrRanges(). It's declared
60 * outside the Port object since it's also used by some mem objects.
61 * Eventually we should move this typedef to wherever Addr is
62 * defined.
63 */
64
65typedef std::list<Range<Addr> > AddrRangeList;
66typedef std::list<Range<Addr> >::iterator AddrRangeIter;
67
68class MemObject;
69
70/**
71 * Ports are used to interface memory objects to each other. A port is
72 * either a master or a slave and the connected peer is always of the
|
73 * opposite role.
74 *
75 * Each port has a name and an owner, and enables three basic types of
76 * accesses to the peer port: functional, atomic and timing.
| 73 * opposite role. Each port has a name, an owner, and an identifier.
|
77 */
78class Port
79{
80
81 private:
82
83 /** Descriptive name (for DPRINTF output) */
84 std::string portName;
85
86 protected:
87
88 /**
89 * A numeric identifier to distinguish ports in a vector, and set
90 * to InvalidPortID in case this port is not part of a vector.
91 */
92 const PortID id;
93
| 74 */
75class Port
76{
77
78 private:
79
80 /** Descriptive name (for DPRINTF output) */
81 std::string portName;
82
83 protected:
84
85 /**
86 * A numeric identifier to distinguish ports in a vector, and set
87 * to InvalidPortID in case this port is not part of a vector.
88 */
89 const PortID id;
90
|
94 /** A pointer to the peer port. */
95 Port* peer;
96
| |
97 /** A reference to the MemObject that owns this port. */
98 MemObject& owner;
99
100 /**
101 * Abstract base class for ports
102 *
103 * @param _name Port name including the owners name
104 * @param _owner The MemObject that is the structural owner of this port
105 * @param _id A port identifier for vector ports
106 */
107 Port(const std::string& _name, MemObject& _owner, PortID _id);
108
109 /**
110 * Virtual destructor due to inheritance.
111 */
112 virtual ~Port();
113
114 public:
115
116 /** Return port name (for DPRINTF). */
117 const std::string name() const { return portName; }
118
119 /** Get the port id. */
120 PortID getId() const { return id; }
121
| 91 /** A reference to the MemObject that owns this port. */
92 MemObject& owner;
93
94 /**
95 * Abstract base class for ports
96 *
97 * @param _name Port name including the owners name
98 * @param _owner The MemObject that is the structural owner of this port
99 * @param _id A port identifier for vector ports
100 */
101 Port(const std::string& _name, MemObject& _owner, PortID _id);
102
103 /**
104 * Virtual destructor due to inheritance.
105 */
106 virtual ~Port();
107
108 public:
109
110 /** Return port name (for DPRINTF). */
111 const std::string name() const { return portName; }
112
113 /** Get the port id. */
114 PortID getId() const { return id; }
115
|
122 protected:
123
124 /**
125 * Called by a peer port if sendTimingReq, sendTimingResp or
126 * sendTimingSnoopResp was unsuccesful, and had to wait.
127 */
128 virtual void recvRetry() = 0;
129
130 public:
131
132 /**
133 * Send a retry to a peer port that previously attempted a
134 * sendTimingReq, sendTimingResp or sendTimingSnoopResp which was
135 * unsuccessful.
136 */
137 void sendRetry() { return peer->recvRetry(); }
138
| |
139};
140
141/** Forward declaration */
142class SlavePort;
143
144/**
145 * A MasterPort is a specialisation of a port. In addition to the
146 * basic functionality of sending packets to its slave peer, it also
147 * has functions specific to a master, e.g. to receive range changes
148 * or determine if the port is snooping or not.
149 */
150class MasterPort : public Port
151{
152
153 friend class SlavePort;
154
155 private:
156
157 SlavePort* _slavePort;
158
159 public:
160
161 MasterPort(const std::string& name, MemObject* owner,
162 PortID id = InvalidPortID);
163 virtual ~MasterPort();
164
165 void bind(SlavePort& slave_port);
166 SlavePort& getSlavePort() const;
167 bool isConnected() const;
168
169 /**
170 * Send an atomic request packet, where the data is moved and the
171 * state is updated in zero time, without interleaving with other
172 * memory accesses.
173 *
174 * @param pkt Packet to send.
175 *
176 * @return Estimated latency of access.
177 */
178 Tick sendAtomic(PacketPtr pkt);
179
180 /**
181 * Send a functional request packet, where the data is instantly
182 * updated everywhere in the memory system, without affecting the
183 * current state of any block or moving the block.
184 *
185 * @param pkt Packet to send.
186 */
187 void sendFunctional(PacketPtr pkt);
188
189 /**
190 * Attempt to send a timing request to the slave port by calling
191 * its corresponding receive function. If the send does not
192 * succeed, as indicated by the return value, then the sender must
193 * wait for a recvRetry at which point it can re-issue a
194 * sendTimingReq.
195 *
196 * @param pkt Packet to send.
197 *
198 * @return If the send was succesful or not.
199 */
200 bool sendTimingReq(PacketPtr pkt);
201
202 /**
203 * Attempt to send a timing snoop response packet to the slave
204 * port by calling its corresponding receive function. If the send
205 * does not succeed, as indicated by the return value, then the
206 * sender must wait for a recvRetry at which point it can re-issue
207 * a sendTimingSnoopResp.
208 *
209 * @param pkt Packet to send.
210 */
211 bool sendTimingSnoopResp(PacketPtr pkt);
212
213 /**
| 116};
117
118/** Forward declaration */
119class SlavePort;
120
121/**
122 * A MasterPort is a specialisation of a port. In addition to the
123 * basic functionality of sending packets to its slave peer, it also
124 * has functions specific to a master, e.g. to receive range changes
125 * or determine if the port is snooping or not.
126 */
127class MasterPort : public Port
128{
129
130 friend class SlavePort;
131
132 private:
133
134 SlavePort* _slavePort;
135
136 public:
137
138 MasterPort(const std::string& name, MemObject* owner,
139 PortID id = InvalidPortID);
140 virtual ~MasterPort();
141
142 void bind(SlavePort& slave_port);
143 SlavePort& getSlavePort() const;
144 bool isConnected() const;
145
146 /**
147 * Send an atomic request packet, where the data is moved and the
148 * state is updated in zero time, without interleaving with other
149 * memory accesses.
150 *
151 * @param pkt Packet to send.
152 *
153 * @return Estimated latency of access.
154 */
155 Tick sendAtomic(PacketPtr pkt);
156
157 /**
158 * Send a functional request packet, where the data is instantly
159 * updated everywhere in the memory system, without affecting the
160 * current state of any block or moving the block.
161 *
162 * @param pkt Packet to send.
163 */
164 void sendFunctional(PacketPtr pkt);
165
166 /**
167 * Attempt to send a timing request to the slave port by calling
168 * its corresponding receive function. If the send does not
169 * succeed, as indicated by the return value, then the sender must
170 * wait for a recvRetry at which point it can re-issue a
171 * sendTimingReq.
172 *
173 * @param pkt Packet to send.
174 *
175 * @return If the send was succesful or not.
176 */
177 bool sendTimingReq(PacketPtr pkt);
178
179 /**
180 * Attempt to send a timing snoop response packet to the slave
181 * port by calling its corresponding receive function. If the send
182 * does not succeed, as indicated by the return value, then the
183 * sender must wait for a recvRetry at which point it can re-issue
184 * a sendTimingSnoopResp.
185 *
186 * @param pkt Packet to send.
187 */
188 bool sendTimingSnoopResp(PacketPtr pkt);
189
190 /**
|
| 191 * Send a retry to the slave port that previously attempted a
192 * sendTimingResp to this master port and failed.
193 */
194 void sendRetry();
195
196 /**
|
214 * Determine if this master port is snooping or not. The default
215 * implementation returns false and thus tells the neighbour we
216 * are not snooping. Any master port that wants to receive snoop
217 * requests (e.g. a cache connected to a bus) has to override this
218 * function.
219 *
220 * @return true if the port should be considered a snooper
221 */
222 virtual bool isSnooping() const { return false; }
223
224 /**
225 * Called by a peer port in order to determine the block size of
226 * the owner of this port.
227 */
228 virtual unsigned deviceBlockSize() const { return 0; }
229
230 /** Called by the associated device if it wishes to find out the blocksize
231 of the device on attached to the peer port.
232 */
233 unsigned peerBlockSize() const;
234
235 /** Inject a PrintReq for the given address to print the state of
236 * that address throughout the memory system. For debugging.
237 */
238 void printAddr(Addr a);
239
240 protected:
241
242 /**
243 * Receive an atomic snoop request packet from the slave port.
244 */
245 virtual Tick recvAtomicSnoop(PacketPtr pkt)
246 {
247 panic("%s was not expecting an atomic snoop request\n", name());
248 return 0;
249 }
250
251 /**
252 * Receive a functional snoop request packet from the slave port.
253 */
254 virtual void recvFunctionalSnoop(PacketPtr pkt)
255 {
256 panic("%s was not expecting a functional snoop request\n", name());
257 }
258
259 /**
260 * Receive a timing response from the slave port.
261 */
262 virtual bool recvTimingResp(PacketPtr pkt) = 0;
263
264 /**
265 * Receive a timing snoop request from the slave port.
266 */
267 virtual void recvTimingSnoopReq(PacketPtr pkt)
268 {
269 panic("%s was not expecting a timing snoop request\n", name());
270 }
271
272 /**
| 197 * Determine if this master port is snooping or not. The default
198 * implementation returns false and thus tells the neighbour we
199 * are not snooping. Any master port that wants to receive snoop
200 * requests (e.g. a cache connected to a bus) has to override this
201 * function.
202 *
203 * @return true if the port should be considered a snooper
204 */
205 virtual bool isSnooping() const { return false; }
206
207 /**
208 * Called by a peer port in order to determine the block size of
209 * the owner of this port.
210 */
211 virtual unsigned deviceBlockSize() const { return 0; }
212
213 /** Called by the associated device if it wishes to find out the blocksize
214 of the device on attached to the peer port.
215 */
216 unsigned peerBlockSize() const;
217
218 /** Inject a PrintReq for the given address to print the state of
219 * that address throughout the memory system. For debugging.
220 */
221 void printAddr(Addr a);
222
223 protected:
224
225 /**
226 * Receive an atomic snoop request packet from the slave port.
227 */
228 virtual Tick recvAtomicSnoop(PacketPtr pkt)
229 {
230 panic("%s was not expecting an atomic snoop request\n", name());
231 return 0;
232 }
233
234 /**
235 * Receive a functional snoop request packet from the slave port.
236 */
237 virtual void recvFunctionalSnoop(PacketPtr pkt)
238 {
239 panic("%s was not expecting a functional snoop request\n", name());
240 }
241
242 /**
243 * Receive a timing response from the slave port.
244 */
245 virtual bool recvTimingResp(PacketPtr pkt) = 0;
246
247 /**
248 * Receive a timing snoop request from the slave port.
249 */
250 virtual void recvTimingSnoopReq(PacketPtr pkt)
251 {
252 panic("%s was not expecting a timing snoop request\n", name());
253 }
254
255 /**
|
| 256 * Called by the slave port if sendTimingReq or
257 * sendTimingSnoopResp was called on this master port (causing
258 * recvTimingReq and recvTimingSnoopResp to be called on the
259 * slave port) and was unsuccesful.
260 */
261 virtual void recvRetry() = 0;
262
263 /**
|
273 * Called to receive an address range change from the peer slave
274 * port. the default implementation ignored the change and does
275 * nothing. Override this function in a derived class if the owner
276 * needs to be aware of he laesddress ranges, e.g. in an
277 * interconnect component like a bus.
278 */
279 virtual void recvRangeChange() { }
280};
281
282/**
283 * A SlavePort is a specialisation of a port. In addition to the
284 * basic functionality of sending packets to its master peer, it also
285 * has functions specific to a slave, e.g. to send range changes
286 * and get the address ranges that the port responds to.
287 */
288class SlavePort : public Port
289{
290
291 friend class MasterPort;
292
293 private:
294
295 MasterPort* _masterPort;
296
297 public:
298
299 SlavePort(const std::string& name, MemObject* owner,
300 PortID id = InvalidPortID);
301 virtual ~SlavePort();
302
303 void bind(MasterPort& master_port);
304 MasterPort& getMasterPort() const;
305 bool isConnected() const;
306
307 /**
308 * Send an atomic snoop request packet, where the data is moved
309 * and the state is updated in zero time, without interleaving
310 * with other memory accesses.
311 *
312 * @param pkt Snoop packet to send.
313 *
314 * @return Estimated latency of access.
315 */
316 Tick sendAtomicSnoop(PacketPtr pkt);
317
318 /**
319 * Send a functional snoop request packet, where the data is
320 * instantly updated everywhere in the memory system, without
321 * affecting the current state of any block or moving the block.
322 *
323 * @param pkt Snoop packet to send.
324 */
325 void sendFunctionalSnoop(PacketPtr pkt);
326
327 /**
328 * Attempt to send a timing response to the master port by calling
329 * its corresponding receive function. If the send does not
330 * succeed, as indicated by the return value, then the sender must
331 * wait for a recvRetry at which point it can re-issue a
332 * sendTimingResp.
333 *
334 * @param pkt Packet to send.
335 *
336 * @return If the send was succesful or not.
337 */
338 bool sendTimingResp(PacketPtr pkt);
339
340 /**
341 * Attempt to send a timing snoop request packet to the master port
342 * by calling its corresponding receive function. Snoop requests
343 * always succeed and hence no return value is needed.
344 *
345 * @param pkt Packet to send.
346 */
347 void sendTimingSnoopReq(PacketPtr pkt);
348
349 /**
| 264 * Called to receive an address range change from the peer slave
265 * port. the default implementation ignored the change and does
266 * nothing. Override this function in a derived class if the owner
267 * needs to be aware of he laesddress ranges, e.g. in an
268 * interconnect component like a bus.
269 */
270 virtual void recvRangeChange() { }
271};
272
273/**
274 * A SlavePort is a specialisation of a port. In addition to the
275 * basic functionality of sending packets to its master peer, it also
276 * has functions specific to a slave, e.g. to send range changes
277 * and get the address ranges that the port responds to.
278 */
279class SlavePort : public Port
280{
281
282 friend class MasterPort;
283
284 private:
285
286 MasterPort* _masterPort;
287
288 public:
289
290 SlavePort(const std::string& name, MemObject* owner,
291 PortID id = InvalidPortID);
292 virtual ~SlavePort();
293
294 void bind(MasterPort& master_port);
295 MasterPort& getMasterPort() const;
296 bool isConnected() const;
297
298 /**
299 * Send an atomic snoop request packet, where the data is moved
300 * and the state is updated in zero time, without interleaving
301 * with other memory accesses.
302 *
303 * @param pkt Snoop packet to send.
304 *
305 * @return Estimated latency of access.
306 */
307 Tick sendAtomicSnoop(PacketPtr pkt);
308
309 /**
310 * Send a functional snoop request packet, where the data is
311 * instantly updated everywhere in the memory system, without
312 * affecting the current state of any block or moving the block.
313 *
314 * @param pkt Snoop packet to send.
315 */
316 void sendFunctionalSnoop(PacketPtr pkt);
317
318 /**
319 * Attempt to send a timing response to the master port by calling
320 * its corresponding receive function. If the send does not
321 * succeed, as indicated by the return value, then the sender must
322 * wait for a recvRetry at which point it can re-issue a
323 * sendTimingResp.
324 *
325 * @param pkt Packet to send.
326 *
327 * @return If the send was succesful or not.
328 */
329 bool sendTimingResp(PacketPtr pkt);
330
331 /**
332 * Attempt to send a timing snoop request packet to the master port
333 * by calling its corresponding receive function. Snoop requests
334 * always succeed and hence no return value is needed.
335 *
336 * @param pkt Packet to send.
337 */
338 void sendTimingSnoopReq(PacketPtr pkt);
339
340 /**
|
| 341 * Send a retry to the master port that previously attempted a
342 * sendTimingReq or sendTimingSnoopResp to this slave port and
343 * failed.
344 */
345 void sendRetry();
346
347 /**
|
350 * Called by a peer port in order to determine the block size of
351 * the owner of this port.
352 */
353 virtual unsigned deviceBlockSize() const { return 0; }
354
355 /** Called by the associated device if it wishes to find out the blocksize
356 of the device on attached to the peer port.
357 */
358 unsigned peerBlockSize() const;
359
360 /**
361 * Called by the owner to send a range change
362 */
363 void sendRangeChange() const { _masterPort->recvRangeChange(); }
364
365 /**
366 * Get a list of the non-overlapping address ranges the owner is
367 * responsible for. All slave ports must override this function
368 * and return a populated list with at least one item.
369 *
370 * @return a list of ranges responded to
371 */
372 virtual AddrRangeList getAddrRanges() = 0;
373
374 protected:
375
376 /**
377 * Receive an atomic request packet from the master port.
378 */
379 virtual Tick recvAtomic(PacketPtr pkt) = 0;
380
381 /**
382 * Receive a functional request packet from the master port.
383 */
384 virtual void recvFunctional(PacketPtr pkt) = 0;
385
386 /**
387 * Receive a timing request from the master port.
388 */
389 virtual bool recvTimingReq(PacketPtr pkt) = 0;
390
391 /**
392 * Receive a timing snoop response from the master port.
393 */
394 virtual bool recvTimingSnoopResp(PacketPtr pkt)
395 {
396 panic("%s was not expecting a timing snoop response\n", name());
397 }
398
| 348 * Called by a peer port in order to determine the block size of
349 * the owner of this port.
350 */
351 virtual unsigned deviceBlockSize() const { return 0; }
352
353 /** Called by the associated device if it wishes to find out the blocksize
354 of the device on attached to the peer port.
355 */
356 unsigned peerBlockSize() const;
357
358 /**
359 * Called by the owner to send a range change
360 */
361 void sendRangeChange() const { _masterPort->recvRangeChange(); }
362
363 /**
364 * Get a list of the non-overlapping address ranges the owner is
365 * responsible for. All slave ports must override this function
366 * and return a populated list with at least one item.
367 *
368 * @return a list of ranges responded to
369 */
370 virtual AddrRangeList getAddrRanges() = 0;
371
372 protected:
373
374 /**
375 * Receive an atomic request packet from the master port.
376 */
377 virtual Tick recvAtomic(PacketPtr pkt) = 0;
378
379 /**
380 * Receive a functional request packet from the master port.
381 */
382 virtual void recvFunctional(PacketPtr pkt) = 0;
383
384 /**
385 * Receive a timing request from the master port.
386 */
387 virtual bool recvTimingReq(PacketPtr pkt) = 0;
388
389 /**
390 * Receive a timing snoop response from the master port.
391 */
392 virtual bool recvTimingSnoopResp(PacketPtr pkt)
393 {
394 panic("%s was not expecting a timing snoop response\n", name());
395 }
396
|
| 397 /**
398 * Called by the master port if sendTimingResp was called on this
399 * slave port (causing recvTimingResp to be called on the master
400 * port) and was unsuccesful.
401 */
402 virtual void recvRetry() = 0;
403
|
399};
400
401#endif //__MEM_PORT_HH__
| 404};
405
406#endif //__MEM_PORT_HH__
|