tlb.cc revision 8782
16019Shines@cs.fsu.edu/* 27093Sgblack@eecs.umich.edu * Copyright (c) 2010 ARM Limited 37093Sgblack@eecs.umich.edu * All rights reserved 47093Sgblack@eecs.umich.edu * 57093Sgblack@eecs.umich.edu * The license below extends only to copyright in the software and shall 67093Sgblack@eecs.umich.edu * not be construed as granting a license to any other intellectual 77093Sgblack@eecs.umich.edu * property including but not limited to intellectual property relating 87093Sgblack@eecs.umich.edu * to a hardware implementation of the functionality of the software 97093Sgblack@eecs.umich.edu * licensed hereunder. You may use the software subject to the license 107093Sgblack@eecs.umich.edu * terms below provided that you ensure that this notice is replicated 117093Sgblack@eecs.umich.edu * unmodified and in its entirety in all distributions of the software, 127093Sgblack@eecs.umich.edu * modified or unmodified, in source code or in binary form. 137093Sgblack@eecs.umich.edu * 146019Shines@cs.fsu.edu * Copyright (c) 2001-2005 The Regents of The University of Michigan 156019Shines@cs.fsu.edu * All rights reserved. 166019Shines@cs.fsu.edu * 176019Shines@cs.fsu.edu * Redistribution and use in source and binary forms, with or without 186019Shines@cs.fsu.edu * modification, are permitted provided that the following conditions are 196019Shines@cs.fsu.edu * met: redistributions of source code must retain the above copyright 206019Shines@cs.fsu.edu * notice, this list of conditions and the following disclaimer; 216019Shines@cs.fsu.edu * redistributions in binary form must reproduce the above copyright 226019Shines@cs.fsu.edu * notice, this list of conditions and the following disclaimer in the 236019Shines@cs.fsu.edu * documentation and/or other materials provided with the distribution; 246019Shines@cs.fsu.edu * neither the name of the copyright holders nor the names of its 256019Shines@cs.fsu.edu * contributors may be used to endorse or promote products derived from 266019Shines@cs.fsu.edu * this software without specific prior written permission. 276019Shines@cs.fsu.edu * 286019Shines@cs.fsu.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 296019Shines@cs.fsu.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 306019Shines@cs.fsu.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 316019Shines@cs.fsu.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 326019Shines@cs.fsu.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 336019Shines@cs.fsu.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 346019Shines@cs.fsu.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 356019Shines@cs.fsu.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 366019Shines@cs.fsu.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 376019Shines@cs.fsu.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 386019Shines@cs.fsu.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 396019Shines@cs.fsu.edu * 407399SAli.Saidi@ARM.com * Authors: Ali Saidi 417399SAli.Saidi@ARM.com * Nathan Binkert 426019Shines@cs.fsu.edu * Steve Reinhardt 436019Shines@cs.fsu.edu */ 446019Shines@cs.fsu.edu 456019Shines@cs.fsu.edu#include <string> 466019Shines@cs.fsu.edu#include <vector> 476019Shines@cs.fsu.edu 486116Snate@binkert.org#include "arch/arm/faults.hh" 496019Shines@cs.fsu.edu#include "arch/arm/pagetable.hh" 508782Sgblack@eecs.umich.edu#include "arch/arm/system.hh" 518756Sgblack@eecs.umich.edu#include "arch/arm/table_walker.hh" 526019Shines@cs.fsu.edu#include "arch/arm/tlb.hh" 536019Shines@cs.fsu.edu#include "arch/arm/utility.hh" 546019Shines@cs.fsu.edu#include "base/inifile.hh" 556019Shines@cs.fsu.edu#include "base/str.hh" 566019Shines@cs.fsu.edu#include "base/trace.hh" 576019Shines@cs.fsu.edu#include "cpu/thread_context.hh" 588232Snate@binkert.org#include "debug/Checkpoint.hh" 598232Snate@binkert.org#include "debug/TLB.hh" 608232Snate@binkert.org#include "debug/TLBVerbose.hh" 616116Snate@binkert.org#include "mem/page_table.hh" 626116Snate@binkert.org#include "params/ArmTLB.hh" 638756Sgblack@eecs.umich.edu#include "sim/full_system.hh" 646019Shines@cs.fsu.edu#include "sim/process.hh" 656019Shines@cs.fsu.edu 666019Shines@cs.fsu.eduusing namespace std; 676019Shines@cs.fsu.eduusing namespace ArmISA; 686019Shines@cs.fsu.edu 696019Shines@cs.fsu.eduTLB::TLB(const Params *p) 708756Sgblack@eecs.umich.edu : BaseTLB(p), size(p->size) , tableWalker(p->walker), 718756Sgblack@eecs.umich.edu rangeMRU(1), bootUncacheability(false), miscRegValid(false) 726019Shines@cs.fsu.edu{ 737404SAli.Saidi@ARM.com table = new TlbEntry[size]; 748352SChander.Sudanthi@ARM.com memset(table, 0, sizeof(TlbEntry) * size); 757399SAli.Saidi@ARM.com 767404SAli.Saidi@ARM.com tableWalker->setTlb(this); 776019Shines@cs.fsu.edu} 786019Shines@cs.fsu.edu 796019Shines@cs.fsu.eduTLB::~TLB() 806019Shines@cs.fsu.edu{ 816019Shines@cs.fsu.edu if (table) 826019Shines@cs.fsu.edu delete [] table; 836019Shines@cs.fsu.edu} 846019Shines@cs.fsu.edu 857694SAli.Saidi@ARM.combool 867694SAli.Saidi@ARM.comTLB::translateFunctional(ThreadContext *tc, Addr va, Addr &pa) 877694SAli.Saidi@ARM.com{ 887749SAli.Saidi@ARM.com if (!miscRegValid) 897749SAli.Saidi@ARM.com updateMiscReg(tc); 907749SAli.Saidi@ARM.com TlbEntry *e = lookup(va, contextId, true); 917694SAli.Saidi@ARM.com if (!e) 927694SAli.Saidi@ARM.com return false; 937694SAli.Saidi@ARM.com pa = e->pAddr(va); 947694SAli.Saidi@ARM.com return true; 957694SAli.Saidi@ARM.com} 967694SAli.Saidi@ARM.com 977404SAli.Saidi@ARM.comTlbEntry* 987694SAli.Saidi@ARM.comTLB::lookup(Addr va, uint8_t cid, bool functional) 996019Shines@cs.fsu.edu{ 1007404SAli.Saidi@ARM.com 1017404SAli.Saidi@ARM.com TlbEntry *retval = NULL; 1027404SAli.Saidi@ARM.com 1037697SAli.Saidi@ARM.com // Maitaining LRU array 1047404SAli.Saidi@ARM.com 1057404SAli.Saidi@ARM.com int x = 0; 1067404SAli.Saidi@ARM.com while (retval == NULL && x < size) { 1077404SAli.Saidi@ARM.com if (table[x].match(va, cid)) { 1087404SAli.Saidi@ARM.com 1097697SAli.Saidi@ARM.com // We only move the hit entry ahead when the position is higher than rangeMRU 1107697SAli.Saidi@ARM.com if (x > rangeMRU) { 1117697SAli.Saidi@ARM.com TlbEntry tmp_entry = table[x]; 1127697SAli.Saidi@ARM.com for(int i = x; i > 0; i--) 1137697SAli.Saidi@ARM.com table[i] = table[i-1]; 1147697SAli.Saidi@ARM.com table[0] = tmp_entry; 1157697SAli.Saidi@ARM.com retval = &table[0]; 1167697SAli.Saidi@ARM.com } else { 1177697SAli.Saidi@ARM.com retval = &table[x]; 1187697SAli.Saidi@ARM.com } 1197404SAli.Saidi@ARM.com break; 1207404SAli.Saidi@ARM.com } 1217404SAli.Saidi@ARM.com x++; 1227404SAli.Saidi@ARM.com } 1237404SAli.Saidi@ARM.com 1247404SAli.Saidi@ARM.com DPRINTF(TLBVerbose, "Lookup %#x, cid %#x -> %s ppn %#x size: %#x pa: %#x ap:%d\n", 1257404SAli.Saidi@ARM.com va, cid, retval ? "hit" : "miss", retval ? retval->pfn : 0, 1267404SAli.Saidi@ARM.com retval ? retval->size : 0, retval ? retval->pAddr(va) : 0, 1277404SAli.Saidi@ARM.com retval ? retval->ap : 0); 1287404SAli.Saidi@ARM.com ; 1297404SAli.Saidi@ARM.com return retval; 1306019Shines@cs.fsu.edu} 1316019Shines@cs.fsu.edu 1326019Shines@cs.fsu.edu// insert a new TLB entry 1336019Shines@cs.fsu.eduvoid 1347404SAli.Saidi@ARM.comTLB::insert(Addr addr, TlbEntry &entry) 1356019Shines@cs.fsu.edu{ 1367404SAli.Saidi@ARM.com DPRINTF(TLB, "Inserting entry into TLB with pfn:%#x size:%#x vpn: %#x" 1377404SAli.Saidi@ARM.com " asid:%d N:%d global:%d valid:%d nc:%d sNp:%d xn:%d ap:%#x" 1387404SAli.Saidi@ARM.com " domain:%#x\n", entry.pfn, entry.size, entry.vpn, entry.asid, 1397404SAli.Saidi@ARM.com entry.N, entry.global, entry.valid, entry.nonCacheable, entry.sNp, 1407404SAli.Saidi@ARM.com entry.xn, entry.ap, entry.domain); 1417404SAli.Saidi@ARM.com 1427697SAli.Saidi@ARM.com if (table[size-1].valid) 1437404SAli.Saidi@ARM.com DPRINTF(TLB, " - Replacing Valid entry %#x, asn %d ppn %#x size: %#x ap:%d\n", 1447697SAli.Saidi@ARM.com table[size-1].vpn << table[size-1].N, table[size-1].asid, 1457697SAli.Saidi@ARM.com table[size-1].pfn << table[size-1].N, table[size-1].size, 1467697SAli.Saidi@ARM.com table[size-1].ap); 1477404SAli.Saidi@ARM.com 1487697SAli.Saidi@ARM.com //inserting to MRU position and evicting the LRU one 1497404SAli.Saidi@ARM.com 1507697SAli.Saidi@ARM.com for(int i = size-1; i > 0; i--) 1517697SAli.Saidi@ARM.com table[i] = table[i-1]; 1527697SAli.Saidi@ARM.com table[0] = entry; 1537734SAli.Saidi@ARM.com 1547734SAli.Saidi@ARM.com inserts++; 1556019Shines@cs.fsu.edu} 1566019Shines@cs.fsu.edu 1576019Shines@cs.fsu.eduvoid 1587404SAli.Saidi@ARM.comTLB::printTlb() 1597404SAli.Saidi@ARM.com{ 1607404SAli.Saidi@ARM.com int x = 0; 1617404SAli.Saidi@ARM.com TlbEntry *te; 1627404SAli.Saidi@ARM.com DPRINTF(TLB, "Current TLB contents:\n"); 1637404SAli.Saidi@ARM.com while (x < size) { 1647404SAli.Saidi@ARM.com te = &table[x]; 1657404SAli.Saidi@ARM.com if (te->valid) 1667404SAli.Saidi@ARM.com DPRINTF(TLB, " * %#x, asn %d ppn %#x size: %#x ap:%d\n", 1677404SAli.Saidi@ARM.com te->vpn << te->N, te->asid, te->pfn << te->N, te->size, te->ap); 1687404SAli.Saidi@ARM.com x++; 1697404SAli.Saidi@ARM.com } 1707404SAli.Saidi@ARM.com} 1717404SAli.Saidi@ARM.com 1727404SAli.Saidi@ARM.com 1737404SAli.Saidi@ARM.comvoid 1746019Shines@cs.fsu.eduTLB::flushAll() 1756019Shines@cs.fsu.edu{ 1767404SAli.Saidi@ARM.com DPRINTF(TLB, "Flushing all TLB entries\n"); 1777404SAli.Saidi@ARM.com int x = 0; 1787404SAli.Saidi@ARM.com TlbEntry *te; 1797404SAli.Saidi@ARM.com while (x < size) { 1807404SAli.Saidi@ARM.com te = &table[x]; 1817734SAli.Saidi@ARM.com if (te->valid) { 1827404SAli.Saidi@ARM.com DPRINTF(TLB, " - %#x, asn %d ppn %#x size: %#x ap:%d\n", 1837404SAli.Saidi@ARM.com te->vpn << te->N, te->asid, te->pfn << te->N, te->size, te->ap); 1847734SAli.Saidi@ARM.com flushedEntries++; 1857734SAli.Saidi@ARM.com } 1867404SAli.Saidi@ARM.com x++; 1877404SAli.Saidi@ARM.com } 1887404SAli.Saidi@ARM.com 1898352SChander.Sudanthi@ARM.com memset(table, 0, sizeof(TlbEntry) * size); 1907734SAli.Saidi@ARM.com 1917734SAli.Saidi@ARM.com flushTlb++; 1926019Shines@cs.fsu.edu} 1936019Shines@cs.fsu.edu 1947404SAli.Saidi@ARM.com 1957404SAli.Saidi@ARM.comvoid 1967404SAli.Saidi@ARM.comTLB::flushMvaAsid(Addr mva, uint64_t asn) 1977404SAli.Saidi@ARM.com{ 1987404SAli.Saidi@ARM.com DPRINTF(TLB, "Flushing mva %#x asid: %#x\n", mva, asn); 1997404SAli.Saidi@ARM.com TlbEntry *te; 2007404SAli.Saidi@ARM.com 2017404SAli.Saidi@ARM.com te = lookup(mva, asn); 2027404SAli.Saidi@ARM.com while (te != NULL) { 2037404SAli.Saidi@ARM.com DPRINTF(TLB, " - %#x, asn %d ppn %#x size: %#x ap:%d\n", 2047404SAli.Saidi@ARM.com te->vpn << te->N, te->asid, te->pfn << te->N, te->size, te->ap); 2057404SAli.Saidi@ARM.com te->valid = false; 2067734SAli.Saidi@ARM.com flushedEntries++; 2077404SAli.Saidi@ARM.com te = lookup(mva,asn); 2087404SAli.Saidi@ARM.com } 2097734SAli.Saidi@ARM.com flushTlbMvaAsid++; 2107404SAli.Saidi@ARM.com} 2117404SAli.Saidi@ARM.com 2127404SAli.Saidi@ARM.comvoid 2137404SAli.Saidi@ARM.comTLB::flushAsid(uint64_t asn) 2147404SAli.Saidi@ARM.com{ 2157404SAli.Saidi@ARM.com DPRINTF(TLB, "Flushing all entries with asid: %#x\n", asn); 2167404SAli.Saidi@ARM.com 2177404SAli.Saidi@ARM.com int x = 0; 2187404SAli.Saidi@ARM.com TlbEntry *te; 2197404SAli.Saidi@ARM.com 2207404SAli.Saidi@ARM.com while (x < size) { 2217404SAli.Saidi@ARM.com te = &table[x]; 2227404SAli.Saidi@ARM.com if (te->asid == asn) { 2237404SAli.Saidi@ARM.com te->valid = false; 2247404SAli.Saidi@ARM.com DPRINTF(TLB, " - %#x, asn %d ppn %#x size: %#x ap:%d\n", 2257404SAli.Saidi@ARM.com te->vpn << te->N, te->asid, te->pfn << te->N, te->size, te->ap); 2267734SAli.Saidi@ARM.com flushedEntries++; 2277404SAli.Saidi@ARM.com } 2287404SAli.Saidi@ARM.com x++; 2297404SAli.Saidi@ARM.com } 2307734SAli.Saidi@ARM.com flushTlbAsid++; 2317404SAli.Saidi@ARM.com} 2327404SAli.Saidi@ARM.com 2337404SAli.Saidi@ARM.comvoid 2347404SAli.Saidi@ARM.comTLB::flushMva(Addr mva) 2357404SAli.Saidi@ARM.com{ 2367404SAli.Saidi@ARM.com DPRINTF(TLB, "Flushing all entries with mva: %#x\n", mva); 2377404SAli.Saidi@ARM.com 2387404SAli.Saidi@ARM.com int x = 0; 2397404SAli.Saidi@ARM.com TlbEntry *te; 2407404SAli.Saidi@ARM.com 2417404SAli.Saidi@ARM.com while (x < size) { 2427404SAli.Saidi@ARM.com te = &table[x]; 2437404SAli.Saidi@ARM.com Addr v = te->vpn << te->N; 2447404SAli.Saidi@ARM.com if (mva >= v && mva < v + te->size) { 2457404SAli.Saidi@ARM.com te->valid = false; 2467404SAli.Saidi@ARM.com DPRINTF(TLB, " - %#x, asn %d ppn %#x size: %#x ap:%d\n", 2477404SAli.Saidi@ARM.com te->vpn << te->N, te->asid, te->pfn << te->N, te->size, te->ap); 2487734SAli.Saidi@ARM.com flushedEntries++; 2497404SAli.Saidi@ARM.com } 2507404SAli.Saidi@ARM.com x++; 2517404SAli.Saidi@ARM.com } 2527734SAli.Saidi@ARM.com flushTlbMva++; 2537404SAli.Saidi@ARM.com} 2547404SAli.Saidi@ARM.com 2556019Shines@cs.fsu.eduvoid 2566019Shines@cs.fsu.eduTLB::serialize(ostream &os) 2576019Shines@cs.fsu.edu{ 2587733SAli.Saidi@ARM.com DPRINTF(Checkpoint, "Serializing Arm TLB\n"); 2597733SAli.Saidi@ARM.com 2607733SAli.Saidi@ARM.com SERIALIZE_SCALAR(_attr); 2618353SAli.Saidi@ARM.com 2628353SAli.Saidi@ARM.com int num_entries = size; 2638353SAli.Saidi@ARM.com SERIALIZE_SCALAR(num_entries); 2647733SAli.Saidi@ARM.com for(int i = 0; i < size; i++){ 2657733SAli.Saidi@ARM.com nameOut(os, csprintf("%s.TlbEntry%d", name(), i)); 2667733SAli.Saidi@ARM.com table[i].serialize(os); 2677733SAli.Saidi@ARM.com } 2686019Shines@cs.fsu.edu} 2696019Shines@cs.fsu.edu 2706019Shines@cs.fsu.eduvoid 2716019Shines@cs.fsu.eduTLB::unserialize(Checkpoint *cp, const string §ion) 2726019Shines@cs.fsu.edu{ 2737733SAli.Saidi@ARM.com DPRINTF(Checkpoint, "Unserializing Arm TLB\n"); 2746019Shines@cs.fsu.edu 2757733SAli.Saidi@ARM.com UNSERIALIZE_SCALAR(_attr); 2768353SAli.Saidi@ARM.com int num_entries; 2778353SAli.Saidi@ARM.com UNSERIALIZE_SCALAR(num_entries); 2788353SAli.Saidi@ARM.com for(int i = 0; i < min(size, num_entries); i++){ 2797733SAli.Saidi@ARM.com table[i].unserialize(cp, csprintf("%s.TlbEntry%d", section, i)); 2807733SAli.Saidi@ARM.com } 2817749SAli.Saidi@ARM.com miscRegValid = false; 2826019Shines@cs.fsu.edu} 2836019Shines@cs.fsu.edu 2846019Shines@cs.fsu.eduvoid 2856019Shines@cs.fsu.eduTLB::regStats() 2866019Shines@cs.fsu.edu{ 2877734SAli.Saidi@ARM.com instHits 2887734SAli.Saidi@ARM.com .name(name() + ".inst_hits") 2897734SAli.Saidi@ARM.com .desc("ITB inst hits") 2907734SAli.Saidi@ARM.com ; 2917734SAli.Saidi@ARM.com 2927734SAli.Saidi@ARM.com instMisses 2937734SAli.Saidi@ARM.com .name(name() + ".inst_misses") 2947734SAli.Saidi@ARM.com .desc("ITB inst misses") 2957734SAli.Saidi@ARM.com ; 2967734SAli.Saidi@ARM.com 2977734SAli.Saidi@ARM.com instAccesses 2987734SAli.Saidi@ARM.com .name(name() + ".inst_accesses") 2997734SAli.Saidi@ARM.com .desc("ITB inst accesses") 3007734SAli.Saidi@ARM.com ; 3017734SAli.Saidi@ARM.com 3027734SAli.Saidi@ARM.com readHits 3036019Shines@cs.fsu.edu .name(name() + ".read_hits") 3046019Shines@cs.fsu.edu .desc("DTB read hits") 3056019Shines@cs.fsu.edu ; 3066019Shines@cs.fsu.edu 3077734SAli.Saidi@ARM.com readMisses 3086019Shines@cs.fsu.edu .name(name() + ".read_misses") 3096019Shines@cs.fsu.edu .desc("DTB read misses") 3106019Shines@cs.fsu.edu ; 3116019Shines@cs.fsu.edu 3127734SAli.Saidi@ARM.com readAccesses 3136019Shines@cs.fsu.edu .name(name() + ".read_accesses") 3146019Shines@cs.fsu.edu .desc("DTB read accesses") 3156019Shines@cs.fsu.edu ; 3166019Shines@cs.fsu.edu 3177734SAli.Saidi@ARM.com writeHits 3186019Shines@cs.fsu.edu .name(name() + ".write_hits") 3196019Shines@cs.fsu.edu .desc("DTB write hits") 3206019Shines@cs.fsu.edu ; 3216019Shines@cs.fsu.edu 3227734SAli.Saidi@ARM.com writeMisses 3236019Shines@cs.fsu.edu .name(name() + ".write_misses") 3246019Shines@cs.fsu.edu .desc("DTB write misses") 3256019Shines@cs.fsu.edu ; 3266019Shines@cs.fsu.edu 3277734SAli.Saidi@ARM.com writeAccesses 3286019Shines@cs.fsu.edu .name(name() + ".write_accesses") 3296019Shines@cs.fsu.edu .desc("DTB write accesses") 3306019Shines@cs.fsu.edu ; 3316019Shines@cs.fsu.edu 3326019Shines@cs.fsu.edu hits 3336019Shines@cs.fsu.edu .name(name() + ".hits") 3346019Shines@cs.fsu.edu .desc("DTB hits") 3356019Shines@cs.fsu.edu ; 3366019Shines@cs.fsu.edu 3376019Shines@cs.fsu.edu misses 3386019Shines@cs.fsu.edu .name(name() + ".misses") 3396019Shines@cs.fsu.edu .desc("DTB misses") 3406019Shines@cs.fsu.edu ; 3416019Shines@cs.fsu.edu 3426019Shines@cs.fsu.edu accesses 3436019Shines@cs.fsu.edu .name(name() + ".accesses") 3446019Shines@cs.fsu.edu .desc("DTB accesses") 3456019Shines@cs.fsu.edu ; 3466019Shines@cs.fsu.edu 3477734SAli.Saidi@ARM.com flushTlb 3487734SAli.Saidi@ARM.com .name(name() + ".flush_tlb") 3497734SAli.Saidi@ARM.com .desc("Number of times complete TLB was flushed") 3507734SAli.Saidi@ARM.com ; 3517734SAli.Saidi@ARM.com 3527734SAli.Saidi@ARM.com flushTlbMva 3537734SAli.Saidi@ARM.com .name(name() + ".flush_tlb_mva") 3547734SAli.Saidi@ARM.com .desc("Number of times TLB was flushed by MVA") 3557734SAli.Saidi@ARM.com ; 3567734SAli.Saidi@ARM.com 3577734SAli.Saidi@ARM.com flushTlbMvaAsid 3587734SAli.Saidi@ARM.com .name(name() + ".flush_tlb_mva_asid") 3597734SAli.Saidi@ARM.com .desc("Number of times TLB was flushed by MVA & ASID") 3607734SAli.Saidi@ARM.com ; 3617734SAli.Saidi@ARM.com 3627734SAli.Saidi@ARM.com flushTlbAsid 3637734SAli.Saidi@ARM.com .name(name() + ".flush_tlb_asid") 3647734SAli.Saidi@ARM.com .desc("Number of times TLB was flushed by ASID") 3657734SAli.Saidi@ARM.com ; 3667734SAli.Saidi@ARM.com 3677734SAli.Saidi@ARM.com flushedEntries 3687734SAli.Saidi@ARM.com .name(name() + ".flush_entries") 3697734SAli.Saidi@ARM.com .desc("Number of entries that have been flushed from TLB") 3707734SAli.Saidi@ARM.com ; 3717734SAli.Saidi@ARM.com 3727734SAli.Saidi@ARM.com alignFaults 3737734SAli.Saidi@ARM.com .name(name() + ".align_faults") 3747734SAli.Saidi@ARM.com .desc("Number of TLB faults due to alignment restrictions") 3757734SAli.Saidi@ARM.com ; 3767734SAli.Saidi@ARM.com 3777734SAli.Saidi@ARM.com prefetchFaults 3787734SAli.Saidi@ARM.com .name(name() + ".prefetch_faults") 3797734SAli.Saidi@ARM.com .desc("Number of TLB faults due to prefetch") 3807734SAli.Saidi@ARM.com ; 3817734SAli.Saidi@ARM.com 3827734SAli.Saidi@ARM.com domainFaults 3837734SAli.Saidi@ARM.com .name(name() + ".domain_faults") 3847734SAli.Saidi@ARM.com .desc("Number of TLB faults due to domain restrictions") 3857734SAli.Saidi@ARM.com ; 3867734SAli.Saidi@ARM.com 3877734SAli.Saidi@ARM.com permsFaults 3887734SAli.Saidi@ARM.com .name(name() + ".perms_faults") 3897734SAli.Saidi@ARM.com .desc("Number of TLB faults due to permissions restrictions") 3907734SAli.Saidi@ARM.com ; 3917734SAli.Saidi@ARM.com 3927734SAli.Saidi@ARM.com instAccesses = instHits + instMisses; 3937734SAli.Saidi@ARM.com readAccesses = readHits + readMisses; 3947734SAli.Saidi@ARM.com writeAccesses = writeHits + writeMisses; 3957734SAli.Saidi@ARM.com hits = readHits + writeHits + instHits; 3967734SAli.Saidi@ARM.com misses = readMisses + writeMisses + instMisses; 3977734SAli.Saidi@ARM.com accesses = readAccesses + writeAccesses + instAccesses; 3986019Shines@cs.fsu.edu} 3996019Shines@cs.fsu.edu 4007404SAli.Saidi@ARM.comFault 4017404SAli.Saidi@ARM.comTLB::translateSe(RequestPtr req, ThreadContext *tc, Mode mode, 4027404SAli.Saidi@ARM.com Translation *translation, bool &delay, bool timing) 4037404SAli.Saidi@ARM.com{ 4047749SAli.Saidi@ARM.com if (!miscRegValid) 4057749SAli.Saidi@ARM.com updateMiscReg(tc); 4067720Sgblack@eecs.umich.edu Addr vaddr = req->getVaddr(); 4077294Sgblack@eecs.umich.edu uint32_t flags = req->getFlags(); 4087294Sgblack@eecs.umich.edu 4097404SAli.Saidi@ARM.com bool is_fetch = (mode == Execute); 4107404SAli.Saidi@ARM.com bool is_write = (mode == Write); 4117404SAli.Saidi@ARM.com 4127404SAli.Saidi@ARM.com if (!is_fetch) { 4137294Sgblack@eecs.umich.edu assert(flags & MustBeOne); 4147404SAli.Saidi@ARM.com if (sctlr.a || !(flags & AllowUnaligned)) { 4157404SAli.Saidi@ARM.com if (vaddr & flags & AlignmentMask) { 4167404SAli.Saidi@ARM.com return new DataAbort(vaddr, 0, is_write, ArmFault::AlignmentFault); 4177294Sgblack@eecs.umich.edu } 4187294Sgblack@eecs.umich.edu } 4197294Sgblack@eecs.umich.edu } 4206019Shines@cs.fsu.edu 4218782Sgblack@eecs.umich.edu if (!FullSystem) { 4228782Sgblack@eecs.umich.edu Addr paddr; 4238782Sgblack@eecs.umich.edu Process *p = tc->getProcessPtr(); 4247404SAli.Saidi@ARM.com 4258782Sgblack@eecs.umich.edu if (!p->pTable->translate(vaddr, paddr)) 4268782Sgblack@eecs.umich.edu return Fault(new GenericPageTableFault(vaddr)); 4278782Sgblack@eecs.umich.edu req->setPaddr(paddr); 4288782Sgblack@eecs.umich.edu } 4296019Shines@cs.fsu.edu 4306019Shines@cs.fsu.edu return NoFault; 4317404SAli.Saidi@ARM.com} 4327404SAli.Saidi@ARM.com 4337404SAli.Saidi@ARM.comFault 4347406SAli.Saidi@ARM.comTLB::trickBoxCheck(RequestPtr req, Mode mode, uint8_t domain, bool sNp) 4357406SAli.Saidi@ARM.com{ 4367406SAli.Saidi@ARM.com return NoFault; 4377406SAli.Saidi@ARM.com} 4387406SAli.Saidi@ARM.com 4397406SAli.Saidi@ARM.comFault 4407406SAli.Saidi@ARM.comTLB::walkTrickBoxCheck(Addr pa, Addr va, Addr sz, bool is_exec, 4417406SAli.Saidi@ARM.com bool is_write, uint8_t domain, bool sNp) 4427406SAli.Saidi@ARM.com{ 4437406SAli.Saidi@ARM.com return NoFault; 4447406SAli.Saidi@ARM.com} 4457406SAli.Saidi@ARM.com 4467406SAli.Saidi@ARM.comFault 4477404SAli.Saidi@ARM.comTLB::translateFs(RequestPtr req, ThreadContext *tc, Mode mode, 4487404SAli.Saidi@ARM.com Translation *translation, bool &delay, bool timing) 4497404SAli.Saidi@ARM.com{ 4508202SAli.Saidi@ARM.com if (!miscRegValid) { 4517749SAli.Saidi@ARM.com updateMiscReg(tc); 4528202SAli.Saidi@ARM.com DPRINTF(TLBVerbose, "TLB variables changed!\n"); 4538202SAli.Saidi@ARM.com } 4547749SAli.Saidi@ARM.com 4557720Sgblack@eecs.umich.edu Addr vaddr = req->getVaddr(); 4567404SAli.Saidi@ARM.com uint32_t flags = req->getFlags(); 4577404SAli.Saidi@ARM.com 4587404SAli.Saidi@ARM.com bool is_fetch = (mode == Execute); 4597404SAli.Saidi@ARM.com bool is_write = (mode == Write); 4607749SAli.Saidi@ARM.com bool is_priv = isPriv && !(flags & UserMode); 4617404SAli.Saidi@ARM.com 4628552Sdaniel.johnson@arm.com req->setAsid(contextId.asid); 4638552Sdaniel.johnson@arm.com 4648202SAli.Saidi@ARM.com DPRINTF(TLBVerbose, "CPSR is priv:%d UserMode:%d\n", 4657749SAli.Saidi@ARM.com isPriv, flags & UserMode); 4667603SGene.Wu@arm.com // If this is a clrex instruction, provide a PA of 0 with no fault 4677603SGene.Wu@arm.com // This will force the monitor to set the tracked address to 0 4687603SGene.Wu@arm.com // a bit of a hack but this effectively clrears this processors monitor 4697705Sgblack@eecs.umich.edu if (flags & Request::CLEAR_LL){ 4707603SGene.Wu@arm.com req->setPaddr(0); 4717606SGene.Wu@arm.com req->setFlags(Request::UNCACHEABLE); 4727705Sgblack@eecs.umich.edu req->setFlags(Request::CLEAR_LL); 4737603SGene.Wu@arm.com return NoFault; 4747603SGene.Wu@arm.com } 4757608SGene.Wu@arm.com if ((req->isInstFetch() && (!sctlr.i)) || 4767608SGene.Wu@arm.com ((!req->isInstFetch()) && (!sctlr.c))){ 4777608SGene.Wu@arm.com req->setFlags(Request::UNCACHEABLE); 4787608SGene.Wu@arm.com } 4797404SAli.Saidi@ARM.com if (!is_fetch) { 4807404SAli.Saidi@ARM.com assert(flags & MustBeOne); 4817404SAli.Saidi@ARM.com if (sctlr.a || !(flags & AllowUnaligned)) { 4827404SAli.Saidi@ARM.com if (vaddr & flags & AlignmentMask) { 4837734SAli.Saidi@ARM.com alignFaults++; 4847404SAli.Saidi@ARM.com return new DataAbort(vaddr, 0, is_write, ArmFault::AlignmentFault); 4857404SAli.Saidi@ARM.com } 4867404SAli.Saidi@ARM.com } 4877404SAli.Saidi@ARM.com } 4887404SAli.Saidi@ARM.com 4897404SAli.Saidi@ARM.com Fault fault; 4907404SAli.Saidi@ARM.com 4916757SAli.Saidi@ARM.com if (!sctlr.m) { 4927093Sgblack@eecs.umich.edu req->setPaddr(vaddr); 4937404SAli.Saidi@ARM.com if (sctlr.tre == 0) { 4947404SAli.Saidi@ARM.com req->setFlags(Request::UNCACHEABLE); 4957404SAli.Saidi@ARM.com } else { 4967404SAli.Saidi@ARM.com if (nmrr.ir0 == 0 || nmrr.or0 == 0 || prrr.tr0 != 0x2) 4977404SAli.Saidi@ARM.com req->setFlags(Request::UNCACHEABLE); 4987404SAli.Saidi@ARM.com } 4997436Sdam.sunwoo@arm.com 5007436Sdam.sunwoo@arm.com // Set memory attributes 5017436Sdam.sunwoo@arm.com TlbEntry temp_te; 5027439Sdam.sunwoo@arm.com tableWalker->memAttrs(tc, temp_te, sctlr, 0, 1); 5037436Sdam.sunwoo@arm.com temp_te.shareable = true; 5047436Sdam.sunwoo@arm.com DPRINTF(TLBVerbose, "(No MMU) setting memory attributes: shareable:\ 5057436Sdam.sunwoo@arm.com %d, innerAttrs: %d, outerAttrs: %d\n", temp_te.shareable, 5067436Sdam.sunwoo@arm.com temp_te.innerAttrs, temp_te.outerAttrs); 5077436Sdam.sunwoo@arm.com setAttr(temp_te.attributes); 5087436Sdam.sunwoo@arm.com 5097404SAli.Saidi@ARM.com return trickBoxCheck(req, mode, 0, false); 5107404SAli.Saidi@ARM.com } 5117404SAli.Saidi@ARM.com 5127749SAli.Saidi@ARM.com DPRINTF(TLBVerbose, "Translating vaddr=%#x context=%d\n", vaddr, contextId); 5137404SAli.Saidi@ARM.com // Translation enabled 5147404SAli.Saidi@ARM.com 5157749SAli.Saidi@ARM.com TlbEntry *te = lookup(vaddr, contextId); 5167404SAli.Saidi@ARM.com if (te == NULL) { 5177611SGene.Wu@arm.com if (req->isPrefetch()){ 5187611SGene.Wu@arm.com //if the request is a prefetch don't attempt to fill the TLB 5197611SGene.Wu@arm.com //or go any further with the memory access 5207734SAli.Saidi@ARM.com prefetchFaults++; 5217611SGene.Wu@arm.com return new PrefetchAbort(vaddr, ArmFault::PrefetchTLBMiss); 5227611SGene.Wu@arm.com } 5237734SAli.Saidi@ARM.com 5247734SAli.Saidi@ARM.com if (is_fetch) 5257734SAli.Saidi@ARM.com instMisses++; 5267734SAli.Saidi@ARM.com else if (is_write) 5277734SAli.Saidi@ARM.com writeMisses++; 5287734SAli.Saidi@ARM.com else 5297734SAli.Saidi@ARM.com readMisses++; 5307734SAli.Saidi@ARM.com 5317404SAli.Saidi@ARM.com // start translation table walk, pass variables rather than 5327404SAli.Saidi@ARM.com // re-retreaving in table walker for speed 5337404SAli.Saidi@ARM.com DPRINTF(TLB, "TLB Miss: Starting hardware table walker for %#x(%d)\n", 5347749SAli.Saidi@ARM.com vaddr, contextId); 5357749SAli.Saidi@ARM.com fault = tableWalker->walk(req, tc, contextId, mode, translation, 5367404SAli.Saidi@ARM.com timing); 5378067SAli.Saidi@ARM.com if (timing && fault == NoFault) { 5387404SAli.Saidi@ARM.com delay = true; 5397437Sdam.sunwoo@arm.com // for timing mode, return and wait for table walk 5407437Sdam.sunwoo@arm.com return fault; 5417437Sdam.sunwoo@arm.com } 5427404SAli.Saidi@ARM.com if (fault) 5437404SAli.Saidi@ARM.com return fault; 5447404SAli.Saidi@ARM.com 5457749SAli.Saidi@ARM.com te = lookup(vaddr, contextId); 5467404SAli.Saidi@ARM.com if (!te) 5477404SAli.Saidi@ARM.com printTlb(); 5487404SAli.Saidi@ARM.com assert(te); 5497734SAli.Saidi@ARM.com } else { 5507734SAli.Saidi@ARM.com if (is_fetch) 5517734SAli.Saidi@ARM.com instHits++; 5527734SAli.Saidi@ARM.com else if (is_write) 5537734SAli.Saidi@ARM.com writeHits++; 5547734SAli.Saidi@ARM.com else 5557734SAli.Saidi@ARM.com readHits++; 5567404SAli.Saidi@ARM.com } 5577404SAli.Saidi@ARM.com 5587436Sdam.sunwoo@arm.com // Set memory attributes 5597436Sdam.sunwoo@arm.com DPRINTF(TLBVerbose, 5607436Sdam.sunwoo@arm.com "Setting memory attributes: shareable: %d, innerAttrs: %d, \ 5617436Sdam.sunwoo@arm.com outerAttrs: %d\n", 5627436Sdam.sunwoo@arm.com te->shareable, te->innerAttrs, te->outerAttrs); 5637436Sdam.sunwoo@arm.com setAttr(te->attributes); 5647850SMatt.Horsnell@arm.com if (te->nonCacheable) { 5657606SGene.Wu@arm.com req->setFlags(Request::UNCACHEABLE); 5667749SAli.Saidi@ARM.com 5677850SMatt.Horsnell@arm.com // Prevent prefetching from I/O devices. 5687850SMatt.Horsnell@arm.com if (req->isPrefetch()) { 5697850SMatt.Horsnell@arm.com return new PrefetchAbort(vaddr, ArmFault::PrefetchUncacheable); 5707850SMatt.Horsnell@arm.com } 5717850SMatt.Horsnell@arm.com } 5727850SMatt.Horsnell@arm.com 5738782Sgblack@eecs.umich.edu if (FullSystem) { 5748782Sgblack@eecs.umich.edu if (!bootUncacheability && 5758782Sgblack@eecs.umich.edu ((ArmSystem*)tc->getSystemPtr())->adderBootUncacheable(vaddr)) 5768782Sgblack@eecs.umich.edu req->setFlags(Request::UNCACHEABLE); 5778782Sgblack@eecs.umich.edu } 5788527SAli.Saidi@ARM.com 5797404SAli.Saidi@ARM.com switch ( (dacr >> (te->domain * 2)) & 0x3) { 5807404SAli.Saidi@ARM.com case 0: 5817734SAli.Saidi@ARM.com domainFaults++; 5827404SAli.Saidi@ARM.com DPRINTF(TLB, "TLB Fault: Data abort on domain. DACR: %#x domain: %#x" 5837404SAli.Saidi@ARM.com " write:%d sNp:%d\n", dacr, te->domain, is_write, te->sNp); 5847404SAli.Saidi@ARM.com if (is_fetch) 5857404SAli.Saidi@ARM.com return new PrefetchAbort(vaddr, 5867404SAli.Saidi@ARM.com (te->sNp ? ArmFault::Domain0 : ArmFault::Domain1)); 5877404SAli.Saidi@ARM.com else 5887404SAli.Saidi@ARM.com return new DataAbort(vaddr, te->domain, is_write, 5897404SAli.Saidi@ARM.com (te->sNp ? ArmFault::Domain0 : ArmFault::Domain1)); 5907404SAli.Saidi@ARM.com case 1: 5917404SAli.Saidi@ARM.com // Continue with permissions check 5927404SAli.Saidi@ARM.com break; 5937404SAli.Saidi@ARM.com case 2: 5947404SAli.Saidi@ARM.com panic("UNPRED domain\n"); 5957404SAli.Saidi@ARM.com case 3: 5967404SAli.Saidi@ARM.com req->setPaddr(te->pAddr(vaddr)); 5977404SAli.Saidi@ARM.com fault = trickBoxCheck(req, mode, te->domain, te->sNp); 5987404SAli.Saidi@ARM.com if (fault) 5997404SAli.Saidi@ARM.com return fault; 6006757SAli.Saidi@ARM.com return NoFault; 6016757SAli.Saidi@ARM.com } 6027404SAli.Saidi@ARM.com 6037404SAli.Saidi@ARM.com uint8_t ap = te->ap; 6047404SAli.Saidi@ARM.com 6057404SAli.Saidi@ARM.com if (sctlr.afe == 1) 6067404SAli.Saidi@ARM.com ap |= 1; 6077404SAli.Saidi@ARM.com 6087404SAli.Saidi@ARM.com bool abt; 6097404SAli.Saidi@ARM.com 6107406SAli.Saidi@ARM.com /* if (!sctlr.xp) 6117406SAli.Saidi@ARM.com ap &= 0x3; 6127406SAli.Saidi@ARM.com*/ 6137404SAli.Saidi@ARM.com switch (ap) { 6147404SAli.Saidi@ARM.com case 0: 6157406SAli.Saidi@ARM.com DPRINTF(TLB, "Access permissions 0, checking rs:%#x\n", (int)sctlr.rs); 6167406SAli.Saidi@ARM.com if (!sctlr.xp) { 6177406SAli.Saidi@ARM.com switch ((int)sctlr.rs) { 6187406SAli.Saidi@ARM.com case 2: 6197406SAli.Saidi@ARM.com abt = is_write; 6207406SAli.Saidi@ARM.com break; 6217406SAli.Saidi@ARM.com case 1: 6227406SAli.Saidi@ARM.com abt = is_write || !is_priv; 6237406SAli.Saidi@ARM.com break; 6247406SAli.Saidi@ARM.com case 0: 6257406SAli.Saidi@ARM.com case 3: 6267406SAli.Saidi@ARM.com default: 6277406SAli.Saidi@ARM.com abt = true; 6287406SAli.Saidi@ARM.com break; 6297406SAli.Saidi@ARM.com } 6307406SAli.Saidi@ARM.com } else { 6317406SAli.Saidi@ARM.com abt = true; 6327406SAli.Saidi@ARM.com } 6337404SAli.Saidi@ARM.com break; 6347404SAli.Saidi@ARM.com case 1: 6357404SAli.Saidi@ARM.com abt = !is_priv; 6367404SAli.Saidi@ARM.com break; 6377404SAli.Saidi@ARM.com case 2: 6387404SAli.Saidi@ARM.com abt = !is_priv && is_write; 6397404SAli.Saidi@ARM.com break; 6407404SAli.Saidi@ARM.com case 3: 6417404SAli.Saidi@ARM.com abt = false; 6427404SAli.Saidi@ARM.com break; 6437404SAli.Saidi@ARM.com case 4: 6447404SAli.Saidi@ARM.com panic("UNPRED premissions\n"); 6457404SAli.Saidi@ARM.com case 5: 6467404SAli.Saidi@ARM.com abt = !is_priv || is_write; 6477404SAli.Saidi@ARM.com break; 6487404SAli.Saidi@ARM.com case 6: 6497404SAli.Saidi@ARM.com case 7: 6507404SAli.Saidi@ARM.com abt = is_write; 6517404SAli.Saidi@ARM.com break; 6527404SAli.Saidi@ARM.com default: 6537404SAli.Saidi@ARM.com panic("Unknown permissions\n"); 6547404SAli.Saidi@ARM.com } 6557404SAli.Saidi@ARM.com if ((is_fetch) && (abt || te->xn)) { 6567734SAli.Saidi@ARM.com permsFaults++; 6577404SAli.Saidi@ARM.com DPRINTF(TLB, "TLB Fault: Prefetch abort on permission check. AP:%d priv:%d" 6587404SAli.Saidi@ARM.com " write:%d sNp:%d\n", ap, is_priv, is_write, te->sNp); 6597404SAli.Saidi@ARM.com return new PrefetchAbort(vaddr, 6607404SAli.Saidi@ARM.com (te->sNp ? ArmFault::Permission0 : 6617404SAli.Saidi@ARM.com ArmFault::Permission1)); 6627404SAli.Saidi@ARM.com } else if (abt) { 6637734SAli.Saidi@ARM.com permsFaults++; 6647404SAli.Saidi@ARM.com DPRINTF(TLB, "TLB Fault: Data abort on permission check. AP:%d priv:%d" 6657404SAli.Saidi@ARM.com " write:%d sNp:%d\n", ap, is_priv, is_write, te->sNp); 6667404SAli.Saidi@ARM.com return new DataAbort(vaddr, te->domain, is_write, 6677404SAli.Saidi@ARM.com (te->sNp ? ArmFault::Permission0 : 6687404SAli.Saidi@ARM.com ArmFault::Permission1)); 6697404SAli.Saidi@ARM.com } 6707404SAli.Saidi@ARM.com 6717404SAli.Saidi@ARM.com req->setPaddr(te->pAddr(vaddr)); 6727404SAli.Saidi@ARM.com // Check for a trickbox generated address fault 6737404SAli.Saidi@ARM.com fault = trickBoxCheck(req, mode, te->domain, te->sNp); 6747404SAli.Saidi@ARM.com if (fault) 6757404SAli.Saidi@ARM.com return fault; 6767404SAli.Saidi@ARM.com 6776757SAli.Saidi@ARM.com return NoFault; 6787404SAli.Saidi@ARM.com} 6796757SAli.Saidi@ARM.com 6807404SAli.Saidi@ARM.comFault 6817404SAli.Saidi@ARM.comTLB::translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode) 6827404SAli.Saidi@ARM.com{ 6837404SAli.Saidi@ARM.com bool delay = false; 6847404SAli.Saidi@ARM.com Fault fault; 6858756Sgblack@eecs.umich.edu if (FullSystem) 6868756Sgblack@eecs.umich.edu fault = translateFs(req, tc, mode, NULL, delay, false); 6878756Sgblack@eecs.umich.edu else 6888756Sgblack@eecs.umich.edu fault = translateSe(req, tc, mode, NULL, delay, false); 6897404SAli.Saidi@ARM.com assert(!delay); 6907404SAli.Saidi@ARM.com return fault; 6916019Shines@cs.fsu.edu} 6926019Shines@cs.fsu.edu 6937404SAli.Saidi@ARM.comFault 6946116Snate@binkert.orgTLB::translateTiming(RequestPtr req, ThreadContext *tc, 6956116Snate@binkert.org Translation *translation, Mode mode) 6966020Sgblack@eecs.umich.edu{ 6976020Sgblack@eecs.umich.edu assert(translation); 6987404SAli.Saidi@ARM.com bool delay = false; 6997404SAli.Saidi@ARM.com Fault fault; 7008756Sgblack@eecs.umich.edu if (FullSystem) 7018756Sgblack@eecs.umich.edu fault = translateFs(req, tc, mode, translation, delay, true); 7028756Sgblack@eecs.umich.edu else 7038756Sgblack@eecs.umich.edu fault = translateSe(req, tc, mode, translation, delay, true); 7048527SAli.Saidi@ARM.com DPRINTF(TLBVerbose, "Translation returning delay=%d fault=%d\n", delay, fault != 7058067SAli.Saidi@ARM.com NoFault); 7067404SAli.Saidi@ARM.com if (!delay) 7077404SAli.Saidi@ARM.com translation->finish(fault, req, tc, mode); 7087944SGiacomo.Gabrielli@arm.com else 7097944SGiacomo.Gabrielli@arm.com translation->markDelayed(); 7107404SAli.Saidi@ARM.com return fault; 7116020Sgblack@eecs.umich.edu} 7126020Sgblack@eecs.umich.edu 7137781SAli.Saidi@ARM.comPort* 7147781SAli.Saidi@ARM.comTLB::getPort() 7157781SAli.Saidi@ARM.com{ 7167781SAli.Saidi@ARM.com return tableWalker->getPort("port"); 7177781SAli.Saidi@ARM.com} 7187781SAli.Saidi@ARM.com 7197781SAli.Saidi@ARM.com 7207781SAli.Saidi@ARM.com 7216116Snate@binkert.orgArmISA::TLB * 7226116Snate@binkert.orgArmTLBParams::create() 7236019Shines@cs.fsu.edu{ 7246116Snate@binkert.org return new ArmISA::TLB(this); 7256019Shines@cs.fsu.edu} 726