tlb.cc revision 5894
110448Snilay@cs.wisc.edu/* 210448Snilay@cs.wisc.edu * Copyright (c) 2001-2005 The Regents of The University of Michigan 310448Snilay@cs.wisc.edu * All rights reserved. 410448Snilay@cs.wisc.edu * 510448Snilay@cs.wisc.edu * Redistribution and use in source and binary forms, with or without 610448Snilay@cs.wisc.edu * modification, are permitted provided that the following conditions are 710448Snilay@cs.wisc.edu * met: redistributions of source code must retain the above copyright 810448Snilay@cs.wisc.edu * notice, this list of conditions and the following disclaimer; 910448Snilay@cs.wisc.edu * redistributions in binary form must reproduce the above copyright 1010448Snilay@cs.wisc.edu * notice, this list of conditions and the following disclaimer in the 1110448Snilay@cs.wisc.edu * documentation and/or other materials provided with the distribution; 1210448Snilay@cs.wisc.edu * neither the name of the copyright holders nor the names of its 1310448Snilay@cs.wisc.edu * contributors may be used to endorse or promote products derived from 1410448Snilay@cs.wisc.edu * this software without specific prior written permission. 1510448Snilay@cs.wisc.edu * 1610448Snilay@cs.wisc.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1710448Snilay@cs.wisc.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1810448Snilay@cs.wisc.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1910448Snilay@cs.wisc.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2010448Snilay@cs.wisc.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2110448Snilay@cs.wisc.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2210447Snilay@cs.wisc.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2310447Snilay@cs.wisc.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2410447Snilay@cs.wisc.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2510447Snilay@cs.wisc.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2610447Snilay@cs.wisc.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2710447Snilay@cs.wisc.edu * 2810447Snilay@cs.wisc.edu * Authors: Gabe Black 2910447Snilay@cs.wisc.edu */ 3010447Snilay@cs.wisc.edu 3110447Snilay@cs.wisc.edu#include "cpu/thread_context.hh" 3210447Snilay@cs.wisc.edu#include "mem/page_table.hh" 3310447Snilay@cs.wisc.edu#include "sim/process.hh" 3410447Snilay@cs.wisc.edu#include "sim/tlb.hh" 3510447Snilay@cs.wisc.edu 3610447Snilay@cs.wisc.eduFault 3710447Snilay@cs.wisc.eduGenericTLB::translateAtomic(RequestPtr req, ThreadContext * tc, bool) 3810447Snilay@cs.wisc.edu{ 3910447Snilay@cs.wisc.edu#if FULL_SYSTEM 4010447Snilay@cs.wisc.edu panic("Generic translation shouldn't be used in full system mode.\n"); 4110447Snilay@cs.wisc.edu#else 4210447Snilay@cs.wisc.edu Process * p = tc->getProcessPtr(); 4310447Snilay@cs.wisc.edu 4410447Snilay@cs.wisc.edu Fault fault = p->pTable->translate(req); 4510447Snilay@cs.wisc.edu if(fault != NoFault) 4610447Snilay@cs.wisc.edu return fault; 4710447Snilay@cs.wisc.edu 4810447Snilay@cs.wisc.edu return NoFault; 4910447Snilay@cs.wisc.edu#endif 5010447Snilay@cs.wisc.edu} 5110447Snilay@cs.wisc.edu 5210447Snilay@cs.wisc.eduvoid 5310447Snilay@cs.wisc.eduGenericTLB::translateTiming(RequestPtr req, ThreadContext *tc, 5410447Snilay@cs.wisc.edu Translation *translation, bool write) 5510447Snilay@cs.wisc.edu{ 5610447Snilay@cs.wisc.edu assert(translation); 5710447Snilay@cs.wisc.edu translation->finish(translateAtomic(req, tc, write), req, tc, write); 5810447Snilay@cs.wisc.edu} 5910447Snilay@cs.wisc.edu 6010447Snilay@cs.wisc.eduvoid 6110447Snilay@cs.wisc.eduGenericTLB::demapPage(Addr vaddr, uint64_t asn) 6210447Snilay@cs.wisc.edu{ 6310447Snilay@cs.wisc.edu warn("Demapping pages in the generic TLB is unnecessary.\n"); 6410447Snilay@cs.wisc.edu} 6510447Snilay@cs.wisc.edu