1/* 2 * Copyright (c) 2001-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 61 unchanged lines hidden (view full) --- 70TLB::~TLB() 71{ 72 if (table) 73 delete [] table; 74} 75 76// look up an entry in the TLB 77PTE * |
78TLB::lookup(Addr vpn, uint8_t asn) |
79{ 80 // assume not found... 81 PTE *retval = NULL; 82 83 if (PTECache[0]) { 84 if (vpn == PTECache[0]->tag && 85 (PTECache[0]->asma || PTECache[0]->asn == asn)) 86 retval = PTECache[0]; 87 else if (PTECache[1]) { 88 if (vpn == PTECache[1]->tag && 89 (PTECache[1]->asma || PTECache[1]->asn == asn)) 90 retval = PTECache[1]; 91 else if (PTECache[2] && vpn == PTECache[2]->tag && 92 (PTECache[2]->asma || PTECache[2]->asn == asn)) 93 retval = PTECache[2]; 94 } 95 } 96 |
97 if (retval == NULL) { |
98 PageTable::const_iterator i = lookupTable.find(vpn); 99 if (i != lookupTable.end()) { 100 while (i->first == vpn) { 101 int index = i->second; 102 PTE *pte = &table[index]; 103 assert(pte->valid); 104 if (vpn == pte->tag && (pte->asma || pte->asn == asn)) { |
105 retval = updateCache(pte); |
106 break; 107 } 108 109 ++i; 110 } 111 } 112 } 113 --- 193 unchanged lines hidden (view full) --- 307 .name(name() + ".accesses") 308 .desc("ITB accesses"); 309 310 accesses = hits + misses; 311} 312 313 314Fault |
315ITB::translate(RequestPtr &req, ThreadContext *tc) |
316{ 317 //If this is a pal pc, then set PHYSICAL 318 if(FULL_SYSTEM && PcPAL(req->getPC())) 319 req->setFlags(req->getFlags() | PHYSICAL); 320 321 if (PcPAL(req->getPC())) { 322 // strip off PAL PC marker (lsb is 1) 323 req->setPaddr((req->getVaddr() & ~3) & PAddrImplMask); --- 145 unchanged lines hidden (view full) --- 469 470 hits = read_hits + write_hits; 471 misses = read_misses + write_misses; 472 acv = read_acv + write_acv; 473 accesses = read_accesses + write_accesses; 474} 475 476Fault |
477DTB::translate(RequestPtr &req, ThreadContext *tc, bool write) |
478{ 479 Addr pc = tc->readPC(); 480 481 mode_type mode = 482 (mode_type)DTB_CM_CM(tc->readMiscRegNoEffect(IPR_DTB_CM)); 483 484 485 /** --- 150 unchanged lines hidden --- |