| /* |
| * 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. |
| */ |
| |
| #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 "arch/generic/mmu.hh" |
| #include "mem/request.hh" |
| |
| namespace gem5 |
| { |
| |
| class ThreadContext; |
| |
| namespace ArmISA { |
| class Translation; |
| class TLB; |
| |
| |
| class Stage2LookUp : public BaseMMU::Translation |
| { |
| private: |
| MMU *mmu; |
| TlbEntry stage1Te; |
| RequestPtr s1Req; |
| BaseMMU::Translation *transState; |
| BaseMMU::Mode mode; |
| bool timing; |
| bool functional; |
| MMU::ArmTranslationType tranType; |
| TlbEntry *stage2Te; |
| RequestPtr req; |
| Fault fault; |
| bool complete; |
| bool selfDelete; |
| bool secure; |
| |
| public: |
| Stage2LookUp(MMU *_mmu, TlbEntry s1_te, const RequestPtr &_req, |
| MMU::Translation *_transState, BaseMMU::Mode _mode, bool _timing, |
| bool _functional, bool _secure, MMU::ArmTranslationType _tranType) : |
| mmu(_mmu), stage1Te(s1_te), s1Req(_req), |
| transState(_transState), mode(_mode), timing(_timing), |
| functional(_functional), tranType(_tranType), stage2Te(nullptr), |
| fault(NoFault), complete(false), selfDelete(false), secure(_secure) |
| { |
| req = std::make_shared<Request>(); |
| req->setVirt(s1_te.pAddr(s1Req->getVaddr()), s1Req->getSize(), |
| s1Req->getFlags(), s1Req->requestorId(), 0); |
| } |
| |
| Fault getTe(ThreadContext *tc, TlbEntry *destTe); |
| |
| void mergeTe(BaseMMU::Mode mode); |
| |
| void setSelfDelete() { selfDelete = true; } |
| |
| bool isComplete() const { return complete; } |
| |
| void markDelayed() {} |
| |
| void finish(const Fault &fault, const RequestPtr &req, ThreadContext *tc, |
| BaseMMU::Mode mode); |
| }; |
| |
| } // namespace ArmISA |
| } // namespace gem5 |
| |
| #endif //__ARCH_ARM_STAGE2_LOOKUP_HH__ |