1/*
2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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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224 // See if we should schedule a deadlock check
225 if (deadlockCheckEvent.scheduled() == false) {
226 schedule(deadlockCheckEvent, m_deadlock_threshold + curTick());
227 }
228
229 Address line_addr(request->ruby_request.m_PhysicalAddress);
230 line_addr.makeLineAddress();
231 if ((request->ruby_request.m_Type == RubyRequestType_ST) ||
232 (request->ruby_request.m_Type == RubyRequestType_ATOMIC) ||
233 (request->ruby_request.m_Type == RubyRequestType_RMW_Read) ||
234 (request->ruby_request.m_Type == RubyRequestType_RMW_Write) ||
235 (request->ruby_request.m_Type == RubyRequestType_Load_Linked) ||
236 (request->ruby_request.m_Type == RubyRequestType_Store_Conditional) ||
237 (request->ruby_request.m_Type == RubyRequestType_Locked_RMW_Read) ||
238 (request->ruby_request.m_Type == RubyRequestType_Locked_RMW_Write) ||
239 (request->ruby_request.m_Type == RubyRequestType_FLUSH)) {
240 pair<RequestTable::iterator, bool> r =

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377 RequestTable::iterator i = m_writeRequestTable.find(address);
378 assert(i != m_writeRequestTable.end());
379 SequencerRequest* request = i->second;
380
381 m_writeRequestTable.erase(i);
382 markRemoved();
383
384 assert((request->ruby_request.m_Type == RubyRequestType_ST) ||
385 (request->ruby_request.m_Type == RubyRequestType_ATOMIC) ||
386 (request->ruby_request.m_Type == RubyRequestType_RMW_Read) ||
387 (request->ruby_request.m_Type == RubyRequestType_RMW_Write) ||
388 (request->ruby_request.m_Type == RubyRequestType_Load_Linked) ||
389 (request->ruby_request.m_Type == RubyRequestType_Store_Conditional) ||
390 (request->ruby_request.m_Type == RubyRequestType_Locked_RMW_Read) ||
391 (request->ruby_request.m_Type == RubyRequestType_Locked_RMW_Write) ||
392 (request->ruby_request.m_Type == RubyRequestType_FLUSH));
393

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645 // coherence protocol to ensure they follow the proper semantics. In
646 // particular, by identifying the operations as atomic, the protocol
647 // should understand that migratory sharing optimizations should not be
648 // performed (i.e. a load between the LL and SC should not steal away
649 // exclusive permission).
650 //
651 case RubyRequestType_Load_Linked:
652 case RubyRequestType_Store_Conditional:
653 case RubyRequestType_ATOMIC:
654 ctype = RubyRequestType_ATOMIC;
655 break;
656 default:
657 assert(0);
658 }
659
660 RubyAccessMode amtype;
661 switch(request.m_AccessMode){

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669 amtype = RubyAccessMode_User;
670 break;
671 default:
672 assert(0);
673 }
674
675 Address line_addr(request.m_PhysicalAddress);
676 line_addr.makeLineAddress();
677 int proc_id = -1;
678 if (request.pkt != NULL && request.pkt->req->hasContextId()) {
679 proc_id = request.pkt->req->contextId();
680 }
681 RubyRequest *msg = new RubyRequest(request.m_PhysicalAddress.getAddress(),
682 request.data, request.m_Size,
683 request.m_ProgramCounter.getAddress(),
684 ctype, amtype, request.pkt,
685 PrefetchBit_No, proc_id);
686
687 DPRINTFR(ProtocolTrace, "%7s %3s %10s%20s %6s>%-6s %s %s\n",
688 g_eventQueue_ptr->getTime(), m_version, "Seq", "Begin", "", "",

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