2 * Copyright (c) 2010-2013 ARM Limited
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.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions are
16 * met: redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer;
18 * redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution;
21 * neither the name of the copyright holders nor the names of its
22 * contributors may be used to endorse or promote products derived from
23 * this software without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
41 #ifndef __ARCH_ARM_STAGE2_LOOKUP_HH__
42 #define __ARCH_ARM_STAGE2_LOOKUP_HH__
46 #include "arch/arm/system.hh"
47 #include "arch/arm/table_walker.hh"
48 #include "arch/arm/tlb.hh"
49 #include "mem/request.hh"
58 class Stage2LookUp : public BaseTLB::Translation
65 TLB::Translation *transState;
69 TLB::ArmTranslationType tranType;
77 Stage2LookUp(TLB *s1Tlb, TLB *s2Tlb, TlbEntry s1Te, const RequestPtr &_req,
78 TLB::Translation *_transState, BaseTLB::Mode _mode, bool _timing,
79 bool _functional, TLB::ArmTranslationType _tranType) :
80 stage1Tlb(s1Tlb), stage2Tlb(s2Tlb), stage1Te(s1Te), s1Req(_req),
81 transState(_transState), mode(_mode), timing(_timing),
82 functional(_functional), tranType(_tranType), stage2Te(nullptr),
83 fault(NoFault), complete(false), selfDelete(false)
85 req = std::make_shared<Request>();
86 req->setVirt(0, s1Te.pAddr(s1Req->getVaddr()), s1Req->getSize(),
87 s1Req->getFlags(), s1Req->masterId(), 0);
90 Fault getTe(ThreadContext *tc, TlbEntry *destTe);
92 void mergeTe(const RequestPtr &req, BaseTLB::Mode mode);
94 void setSelfDelete() { selfDelete = true; }
96 bool isComplete() const { return complete; }
100 void finish(const Fault &fault, const RequestPtr &req, ThreadContext *tc,
105 } // namespace ArmISA
107 #endif //__ARCH_ARM_STAGE2_LOOKUP_HH__