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+/*
+ * Copyright (c) 2010-2013 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Ali Saidi
+ * Giacomo Gabrielli
+ */
+
+#ifndef __ARCH_ARM_STAGE2_LOOKUP_HH__
+#define __ARCH_ARM_STAGE2_LOOKUP_HH__
+
+#include <list>
+
+#include "arch/arm/system.hh"
+#include "arch/arm/table_walker.hh"
+#include "arch/arm/tlb.hh"
+#include "mem/request.hh"
+#include "sim/tlb.hh"
+
+class ThreadContext;
+
+namespace ArmISA {
+class Translation;
+class TLB;
+
+
+class Stage2LookUp : public BaseTLB::Translation
+{
+ private:
+ TLB *stage1Tlb;
+ TLB *stage2Tlb;
+ TlbEntry stage1Te;
+ RequestPtr s1Req;
+ TLB::Translation *transState;
+ BaseTLB::Mode mode;
+ bool timing;
+ bool functional;
+ TLB::ArmTranslationType tranType;
+ TlbEntry *stage2Te;
+ Request req;
+ Fault fault;
+ bool complete;
+ bool selfDelete;
+
+ public:
+ Stage2LookUp(TLB *s1Tlb, TLB *s2Tlb, TlbEntry s1Te, RequestPtr _req,
+ TLB::Translation *_transState, BaseTLB::Mode _mode, bool _timing,
+ bool _functional, TLB::ArmTranslationType _tranType) :
+ stage1Tlb(s1Tlb), stage2Tlb(s2Tlb), stage1Te(s1Te), s1Req(_req),
+ transState(_transState), mode(_mode), timing(_timing),
+ functional(_functional), tranType(_tranType), fault(NoFault),
+ complete(false), selfDelete(false)
+ {
+ req.setVirt(0, s1Te.pAddr(s1Req->getVaddr()), s1Req->getSize(),
+ s1Req->getFlags(), s1Req->masterId(), 0);
+ }
+
+ Fault getTe(ThreadContext *tc, TlbEntry *destTe);
+
+ void mergeTe(RequestPtr req, BaseTLB::Mode mode);
+
+ void setSelfDelete() { selfDelete = true; }
+
+ bool isComplete() const { return complete; }
+
+ void markDelayed() {}
+
+ void finish(Fault fault, RequestPtr req, ThreadContext *tc,
+ BaseTLB::Mode mode);
+};
+
+
+} // namespace ArmISA
+
+#endif //__ARCH_ARM_STAGE2_LOOKUP_HH__
+