packet.hh (8229:78bf55f23338) packet.hh (8436:5648986156db)
1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * Copyright (c) 2010 Advanced Micro Devices, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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98 MessageResp,
99 // Error responses
100 // @TODO these should be classified as responses rather than
101 // requests; coding them as requests initially for backwards
102 // compatibility
103 NetworkNackError, // nacked at network layer (not by protocol)
104 InvalidDestError, // packet dest field invalid
105 BadAddressError, // memory address invalid
1/*
2 * Copyright (c) 2006 The Regents of The University of Michigan
3 * Copyright (c) 2010 Advanced Micro Devices, Inc.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright

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98 MessageResp,
99 // Error responses
100 // @TODO these should be classified as responses rather than
101 // requests; coding them as requests initially for backwards
102 // compatibility
103 NetworkNackError, // nacked at network layer (not by protocol)
104 InvalidDestError, // packet dest field invalid
105 BadAddressError, // memory address invalid
106 FunctionalReadError, // unable to fulfill functional read
107 FunctionalWriteError, // unable to fulfill functional write
106 // Fake simulator-only commands
107 PrintReq, // Print state matching address
108 FlushReq, //request for a cache flush
109 NUM_MEM_CMDS
110 };
111
112 private:
113 /**

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235 /// when the packet is destroyed?
236 static const FlagsType STATIC_DATA = 0x00001000;
237 /// The data pointer points to a value that should be freed when
238 /// the packet is destroyed.
239 static const FlagsType DYNAMIC_DATA = 0x00002000;
240 /// the data pointer points to an array (thus delete []) needs to
241 /// be called on it rather than simply delete.
242 static const FlagsType ARRAY_DATA = 0x00004000;
108 // Fake simulator-only commands
109 PrintReq, // Print state matching address
110 FlushReq, //request for a cache flush
111 NUM_MEM_CMDS
112 };
113
114 private:
115 /**

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237 /// when the packet is destroyed?
238 static const FlagsType STATIC_DATA = 0x00001000;
239 /// The data pointer points to a value that should be freed when
240 /// the packet is destroyed.
241 static const FlagsType DYNAMIC_DATA = 0x00002000;
242 /// the data pointer points to an array (thus delete []) needs to
243 /// be called on it rather than simply delete.
244 static const FlagsType ARRAY_DATA = 0x00004000;
245 /// suppress the error if this packet encounters a functional
246 /// access failure.
247 static const FlagsType SUPPRESS_FUNC_ERROR = 0x00008000;
243
244 Flags flags;
245
246 public:
247 typedef MemCmd::Command Command;
248
249 /// The command field of the packet.
250 MemCmd cmd;

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423 bool sharedAsserted() { return flags.isSet(SHARED); }
424
425 // Special control flags
426 void setExpressSnoop() { flags.set(EXPRESS_SNOOP); }
427 bool isExpressSnoop() { return flags.isSet(EXPRESS_SNOOP); }
428 void setSupplyExclusive() { flags.set(SUPPLY_EXCLUSIVE); }
429 void clearSupplyExclusive() { flags.clear(SUPPLY_EXCLUSIVE); }
430 bool isSupplyExclusive() { return flags.isSet(SUPPLY_EXCLUSIVE); }
248
249 Flags flags;
250
251 public:
252 typedef MemCmd::Command Command;
253
254 /// The command field of the packet.
255 MemCmd cmd;

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428 bool sharedAsserted() { return flags.isSet(SHARED); }
429
430 // Special control flags
431 void setExpressSnoop() { flags.set(EXPRESS_SNOOP); }
432 bool isExpressSnoop() { return flags.isSet(EXPRESS_SNOOP); }
433 void setSupplyExclusive() { flags.set(SUPPLY_EXCLUSIVE); }
434 void clearSupplyExclusive() { flags.clear(SUPPLY_EXCLUSIVE); }
435 bool isSupplyExclusive() { return flags.isSet(SUPPLY_EXCLUSIVE); }
436 void setSuppressFuncError() { flags.set(SUPPRESS_FUNC_ERROR); }
437 bool suppressFuncError() { return flags.isSet(SUPPRESS_FUNC_ERROR); }
431
432 // Network error conditions... encapsulate them as methods since
433 // their encoding keeps changing (from result field to command
434 // field, etc.)
435 void
436 setNacked()
437 {
438 assert(isResponse());

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612 }
613
614 void
615 makeTimingResponse()
616 {
617 makeResponse();
618 }
619
438
439 // Network error conditions... encapsulate them as methods since
440 // their encoding keeps changing (from result field to command
441 // field, etc.)
442 void
443 setNacked()
444 {
445 assert(isResponse());

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619 }
620
621 void
622 makeTimingResponse()
623 {
624 makeResponse();
625 }
626
627 void
628 setFunctionalResponseStatus(bool success)
629 {
630 if (!success) {
631 if (isWrite()) {
632 cmd = MemCmd::FunctionalWriteError;
633 } else {
634 cmd = MemCmd::FunctionalReadError;
635 }
636 }
637 }
638
620 /**
621 * Take a request packet that has been returned as NACKED and
622 * modify it so that it can be sent out again. Only packets that
623 * need a response can be NACKED, so verify that that is true.
624 */
625 void
626 reinitNacked()
627 {

--- 193 unchanged lines hidden --- 		639 /**
640 * Take a request packet that has been returned as NACKED and
641 * modify it so that it can be sent out again. Only packets that
642 * need a response can be NACKED, so verify that that is true.
643 */
644 void
645 reinitNacked()
646 {

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