packet.hh (2813:89d9196456ac) packet.hh (2814:b723c79f5349)
1/*
2 * Copyright (c) 2006 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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95
96 /** The address of the request. This address could be virtual or
97 * physical, depending on the system configuration. */
98 Addr addr;
99
100 /** The size of the request or transfer. */
101 int size;
102
1/*
2 * Copyright (c) 2006 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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95
96 /** The address of the request. This address could be virtual or
97 * physical, depending on the system configuration. */
98 Addr addr;
99
100 /** The size of the request or transfer. */
101 int size;
102
103 /** The offset within the block that represents the data. */
104 int offset;
105
106 /** Device address (e.g., bus ID) of the source of the
107 * transaction. The source is not responsible for setting this
108 * field; it is set implicitly by the interconnect when the
109 * packet * is first sent. */
110 short src;
111
112 /** Device address (e.g., bus ID) of the destination of the
113 * transaction. The special value Broadcast indicates that the
114 * packet should be routed based on its address. This field is
115 * initialized in the constructor and is thus always valid
116 * (unlike * addr, size, and src). */
117 short dest;
118
119 /** Are the 'addr' and 'size' fields valid? */
120 bool addrSizeValid;
121 /** Is the 'src' field valid? */
122 bool srcValid;
103 /** Device address (e.g., bus ID) of the source of the
104 * transaction. The source is not responsible for setting this
105 * field; it is set implicitly by the interconnect when the
106 * packet * is first sent. */
107 short src;
108
109 /** Device address (e.g., bus ID) of the destination of the
110 * transaction. The special value Broadcast indicates that the
111 * packet should be routed based on its address. This field is
112 * initialized in the constructor and is thus always valid
113 * (unlike * addr, size, and src). */
114 short dest;
115
116 /** Are the 'addr' and 'size' fields valid? */
117 bool addrSizeValid;
118 /** Is the 'src' field valid? */
119 bool srcValid;
123 /** Is the offset valid. */
124 bool offsetValid;
125
126
127 public:
128
129 /** Used to calculate latencies for each packet.*/
130 Tick time;
131
132 /** The special destination address indicating that the packet

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220 bool isWrite() { return (cmd & IsWrite) != 0; }
221 bool isRequest() { return (cmd & IsRequest) != 0; }
222 bool isResponse() { return (cmd & IsResponse) != 0; }
223 bool needsResponse() { return (cmd & NeedsResponse) != 0; }
224 bool isInvalidate() { return (cmd * IsInvalidate) != 0; }
225
226 bool isCacheFill() { return (flags & CACHE_LINE_FILL) != 0; }
227 bool isNoAllocate() { return (flags & NO_ALLOCATE) != 0; }
120
121
122 public:
123
124 /** Used to calculate latencies for each packet.*/
125 Tick time;
126
127 /** The special destination address indicating that the packet

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215 bool isWrite() { return (cmd & IsWrite) != 0; }
216 bool isRequest() { return (cmd & IsRequest) != 0; }
217 bool isResponse() { return (cmd & IsResponse) != 0; }
218 bool needsResponse() { return (cmd & NeedsResponse) != 0; }
219 bool isInvalidate() { return (cmd * IsInvalidate) != 0; }
220
221 bool isCacheFill() { return (flags & CACHE_LINE_FILL) != 0; }
222 bool isNoAllocate() { return (flags & NO_ALLOCATE) != 0; }
223 bool isCompressed() { return (flags & COMPRESSED) != 0; }
228
224
225 bool nic_pkt() { assert("Unimplemented\n" && 0); }
226
229 /** Possible results of a packet's request. */
230 enum Result
231 {
232 Success,
233 BadAddress,
234 Nacked,
235 Unknown
236 };

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244
245 /** Accessor function that returns the destination index of
246 the packet. */
247 short getDest() const { return dest; }
248 void setDest(short _dest) { dest = _dest; }
249
250 Addr getAddr() const { assert(addrSizeValid); return addr; }
251 int getSize() const { assert(addrSizeValid); return size; }
227 /** Possible results of a packet's request. */
228 enum Result
229 {
230 Success,
231 BadAddress,
232 Nacked,
233 Unknown
234 };

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242
243 /** Accessor function that returns the destination index of
244 the packet. */
245 short getDest() const { return dest; }
246 void setDest(short _dest) { dest = _dest; }
247
248 Addr getAddr() const { assert(addrSizeValid); return addr; }
249 int getSize() const { assert(addrSizeValid); return size; }
252 int getOffset() const { assert(offsetValid); return offset; }
250 Addr getOffset(int blkSize) const { return req->getPaddr() & (Addr)(blkSize - 1); }
253
254 void addrOverride(Addr newAddr) { assert(addrSizeValid); addr = newAddr; }
255 void cmdOverride(Command newCmd) { cmd = newCmd; }
256
257 /** Constructor. Note that a Request object must be constructed
258 * first, but the Requests's physical address and size fields
259 * need not be valid. The command and destination addresses
260 * must be supplied. */
261 Packet(Request *_req, Command _cmd, short _dest)
262 : data(NULL), staticData(false), dynamicData(false), arrayData(false),
263 addr(_req->paddr), size(_req->size), dest(_dest),
264 addrSizeValid(_req->validPaddr),
251
252 void addrOverride(Addr newAddr) { assert(addrSizeValid); addr = newAddr; }
253 void cmdOverride(Command newCmd) { cmd = newCmd; }
254
255 /** Constructor. Note that a Request object must be constructed
256 * first, but the Requests's physical address and size fields
257 * need not be valid. The command and destination addresses
258 * must be supplied. */
259 Packet(Request *_req, Command _cmd, short _dest)
260 : data(NULL), staticData(false), dynamicData(false), arrayData(false),
261 addr(_req->paddr), size(_req->size), dest(_dest),
262 addrSizeValid(_req->validPaddr),
265 srcValid(false), offsetValid(false),
263 srcValid(false),
266 req(_req), coherence(NULL), senderState(NULL), cmd(_cmd),
267 result(Unknown)
268 {
269 flags = 0;
270 }
271
272 /** Alternate constructor if you are trying to create a packet with
273 * a request that is for a whole block, not the address from the req.
274 * this allows for overriding the size/addr of the req.*/
275 Packet(Request *_req, Command _cmd, short _dest, int _blkSize)
276 : data(NULL), staticData(false), dynamicData(false), arrayData(false),
277 addr(_req->paddr & ~(_blkSize - 1)), size(_blkSize),
264 req(_req), coherence(NULL), senderState(NULL), cmd(_cmd),
265 result(Unknown)
266 {
267 flags = 0;
268 }
269
270 /** Alternate constructor if you are trying to create a packet with
271 * a request that is for a whole block, not the address from the req.
272 * this allows for overriding the size/addr of the req.*/
273 Packet(Request *_req, Command _cmd, short _dest, int _blkSize)
274 : data(NULL), staticData(false), dynamicData(false), arrayData(false),
275 addr(_req->paddr & ~(_blkSize - 1)), size(_blkSize),
278 offset(_req->paddr & (_blkSize - 1)), dest(_dest),
279 addrSizeValid(_req->validPaddr), srcValid(false), offsetValid(true),
276 dest(_dest),
277 addrSizeValid(_req->validPaddr), srcValid(false),
280 req(_req), coherence(NULL), senderState(NULL), cmd(_cmd),
281 result(Unknown)
282 {
283 flags = 0;
284 }
285
286 /** Destructor. */
287 ~Packet()

--- 84 unchanged lines hidden --- 		278 req(_req), coherence(NULL), senderState(NULL), cmd(_cmd),
279 result(Unknown)
280 {
281 flags = 0;
282 }
283
284 /** Destructor. */
285 ~Packet()

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