tlb.cc revision 12749
14997SN/A/* 24997SN/A * Copyright (c) 2001-2005 The Regents of The University of Michigan 34997SN/A * All rights reserved. 44997SN/A * 54997SN/A * Redistribution and use in source and binary forms, with or without 64997SN/A * modification, are permitted provided that the following conditions are 74997SN/A * met: redistributions of source code must retain the above copyright 84997SN/A * notice, this list of conditions and the following disclaimer; 94997SN/A * redistributions in binary form must reproduce the above copyright 104997SN/A * notice, this list of conditions and the following disclaimer in the 114997SN/A * documentation and/or other materials provided with the distribution; 124997SN/A * neither the name of the copyright holders nor the names of its 134997SN/A * contributors may be used to endorse or promote products derived from 144997SN/A * this software without specific prior written permission. 154997SN/A * 164997SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 174997SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 184997SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 194997SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 204997SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 214997SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 224997SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234997SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244997SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254997SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 264997SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274997SN/A * 284997SN/A * Authors: Gabe Black 294997SN/A */ 304997SN/A 3110687SAndreas.Sandberg@ARM.com#include "arch/generic/tlb.hh" 3210687SAndreas.Sandberg@ARM.com 334997SN/A#include "cpu/thread_context.hh" 344997SN/A#include "mem/page_table.hh" 358229SN/A#include "sim/faults.hh" 368784SN/A#include "sim/full_system.hh" 374997SN/A#include "sim/process.hh" 384997SN/A 394997SN/AFault 4012749Sgiacomo.travaglini@arm.comGenericTLB::translateAtomic(const RequestPtr &req, ThreadContext *tc, Mode) 414997SN/A{ 428784SN/A if (FullSystem) 435004SN/A panic("Generic translation shouldn't be used in full system mode.\n"); 445004SN/A 458784SN/A Process * p = tc->getProcessPtr(); 465004SN/A 478784SN/A Fault fault = p->pTable->translate(req); 4811321Ssteve.reinhardt@amd.com if (fault != NoFault) 498784SN/A return fault; 508784SN/A 518784SN/A return NoFault; 524997SN/A} 535358SN/A 545358SN/Avoid 5512749Sgiacomo.travaglini@arm.comGenericTLB::translateTiming(const RequestPtr &req, ThreadContext *tc, 566023SN/A Translation *translation, Mode mode) 575894SN/A{ 585894SN/A assert(translation); 596023SN/A translation->finish(translateAtomic(req, tc, mode), req, tc, mode); 605894SN/A} 615894SN/A 629738SN/AFault 6312749Sgiacomo.travaglini@arm.comGenericTLB::finalizePhysical(const RequestPtr &req, ThreadContext *tc, 6412749Sgiacomo.travaglini@arm.com Mode mode) const 659738SN/A{ 669738SN/A return NoFault; 679738SN/A} 689738SN/A 695894SN/Avoid 705358SN/AGenericTLB::demapPage(Addr vaddr, uint64_t asn) 715358SN/A{ 725358SN/A warn("Demapping pages in the generic TLB is unnecessary.\n"); 735358SN/A} 74