tlb.cc revision 4090
13569Sgblack@eecs.umich.edu/* 23569Sgblack@eecs.umich.edu * Copyright (c) 2001-2005 The Regents of The University of Michigan 33569Sgblack@eecs.umich.edu * All rights reserved. 43569Sgblack@eecs.umich.edu * 53569Sgblack@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 63569Sgblack@eecs.umich.edu * modification, are permitted provided that the following conditions are 73569Sgblack@eecs.umich.edu * met: redistributions of source code must retain the above copyright 83569Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 93569Sgblack@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 103569Sgblack@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 113569Sgblack@eecs.umich.edu * documentation and/or other materials provided with the distribution; 123569Sgblack@eecs.umich.edu * neither the name of the copyright holders nor the names of its 133569Sgblack@eecs.umich.edu * contributors may be used to endorse or promote products derived from 143569Sgblack@eecs.umich.edu * this software without specific prior written permission. 153569Sgblack@eecs.umich.edu * 163569Sgblack@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 173569Sgblack@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 183569Sgblack@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 193569Sgblack@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 203569Sgblack@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 213569Sgblack@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 223569Sgblack@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 233569Sgblack@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 243569Sgblack@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 253569Sgblack@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 263569Sgblack@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 273569Sgblack@eecs.umich.edu * 283804Ssaidi@eecs.umich.edu * Authors: Ali Saidi 293569Sgblack@eecs.umich.edu */ 303569Sgblack@eecs.umich.edu 313918Ssaidi@eecs.umich.edu#include <cstring> 323918Ssaidi@eecs.umich.edu 333804Ssaidi@eecs.umich.edu#include "arch/sparc/asi.hh" 343811Ssaidi@eecs.umich.edu#include "arch/sparc/miscregfile.hh" 353569Sgblack@eecs.umich.edu#include "arch/sparc/tlb.hh" 363824Ssaidi@eecs.umich.edu#include "base/bitfield.hh" 373811Ssaidi@eecs.umich.edu#include "base/trace.hh" 383811Ssaidi@eecs.umich.edu#include "cpu/thread_context.hh" 393823Ssaidi@eecs.umich.edu#include "cpu/base.hh" 403823Ssaidi@eecs.umich.edu#include "mem/packet_access.hh" 413823Ssaidi@eecs.umich.edu#include "mem/request.hh" 423569Sgblack@eecs.umich.edu#include "sim/builder.hh" 433569Sgblack@eecs.umich.edu 443804Ssaidi@eecs.umich.edu/* @todo remove some of the magic constants. -- ali 453804Ssaidi@eecs.umich.edu * */ 463569Sgblack@eecs.umich.edunamespace SparcISA 473569Sgblack@eecs.umich.edu{ 483569Sgblack@eecs.umich.edu 493804Ssaidi@eecs.umich.eduTLB::TLB(const std::string &name, int s) 503881Ssaidi@eecs.umich.edu : SimObject(name), size(s), usedEntries(0), lastReplaced(0), 513881Ssaidi@eecs.umich.edu cacheValid(false) 523804Ssaidi@eecs.umich.edu{ 533804Ssaidi@eecs.umich.edu // To make this work you'll have to change the hypervisor and OS 543804Ssaidi@eecs.umich.edu if (size > 64) 553804Ssaidi@eecs.umich.edu fatal("SPARC T1 TLB registers don't support more than 64 TLB entries."); 563569Sgblack@eecs.umich.edu 573804Ssaidi@eecs.umich.edu tlb = new TlbEntry[size]; 583918Ssaidi@eecs.umich.edu std::memset(tlb, 0, sizeof(TlbEntry) * size); 593881Ssaidi@eecs.umich.edu 603881Ssaidi@eecs.umich.edu for (int x = 0; x < size; x++) 613881Ssaidi@eecs.umich.edu freeList.push_back(&tlb[x]); 623804Ssaidi@eecs.umich.edu} 633569Sgblack@eecs.umich.edu 643804Ssaidi@eecs.umich.eduvoid 653804Ssaidi@eecs.umich.eduTLB::clearUsedBits() 663804Ssaidi@eecs.umich.edu{ 673804Ssaidi@eecs.umich.edu MapIter i; 683881Ssaidi@eecs.umich.edu for (i = lookupTable.begin(); i != lookupTable.end(); i++) { 693804Ssaidi@eecs.umich.edu TlbEntry *t = i->second; 703804Ssaidi@eecs.umich.edu if (!t->pte.locked()) { 713804Ssaidi@eecs.umich.edu t->used = false; 723804Ssaidi@eecs.umich.edu usedEntries--; 733804Ssaidi@eecs.umich.edu } 743804Ssaidi@eecs.umich.edu } 753804Ssaidi@eecs.umich.edu} 763569Sgblack@eecs.umich.edu 773569Sgblack@eecs.umich.edu 783804Ssaidi@eecs.umich.eduvoid 793804Ssaidi@eecs.umich.eduTLB::insert(Addr va, int partition_id, int context_id, bool real, 803826Ssaidi@eecs.umich.edu const PageTableEntry& PTE, int entry) 813804Ssaidi@eecs.umich.edu{ 823569Sgblack@eecs.umich.edu 833569Sgblack@eecs.umich.edu 843804Ssaidi@eecs.umich.edu MapIter i; 853826Ssaidi@eecs.umich.edu TlbEntry *new_entry = NULL; 863907Ssaidi@eecs.umich.edu// TlbRange tr; 873826Ssaidi@eecs.umich.edu int x; 883811Ssaidi@eecs.umich.edu 893836Ssaidi@eecs.umich.edu cacheValid = false; 903915Ssaidi@eecs.umich.edu va &= ~(PTE.size()-1); 913907Ssaidi@eecs.umich.edu /* tr.va = va; 923881Ssaidi@eecs.umich.edu tr.size = PTE.size() - 1; 933881Ssaidi@eecs.umich.edu tr.contextId = context_id; 943881Ssaidi@eecs.umich.edu tr.partitionId = partition_id; 953881Ssaidi@eecs.umich.edu tr.real = real; 963907Ssaidi@eecs.umich.edu*/ 973881Ssaidi@eecs.umich.edu 983881Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Inserting TLB Entry; va=%#x pa=%#x pid=%d cid=%d r=%d entryid=%d\n", 993881Ssaidi@eecs.umich.edu va, PTE.paddr(), partition_id, context_id, (int)real, entry); 1003881Ssaidi@eecs.umich.edu 1013881Ssaidi@eecs.umich.edu // Demap any entry that conflicts 1023907Ssaidi@eecs.umich.edu for (x = 0; x < size; x++) { 1033907Ssaidi@eecs.umich.edu if (tlb[x].range.real == real && 1043907Ssaidi@eecs.umich.edu tlb[x].range.partitionId == partition_id && 1053907Ssaidi@eecs.umich.edu tlb[x].range.va < va + PTE.size() - 1 && 1063907Ssaidi@eecs.umich.edu tlb[x].range.va + tlb[x].range.size >= va && 1073907Ssaidi@eecs.umich.edu (real || tlb[x].range.contextId == context_id )) 1083907Ssaidi@eecs.umich.edu { 1093907Ssaidi@eecs.umich.edu if (tlb[x].valid) { 1103907Ssaidi@eecs.umich.edu freeList.push_front(&tlb[x]); 1113907Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Conflicting entry %#X , deleting it\n", x); 1123907Ssaidi@eecs.umich.edu 1133907Ssaidi@eecs.umich.edu tlb[x].valid = false; 1143907Ssaidi@eecs.umich.edu if (tlb[x].used) { 1153907Ssaidi@eecs.umich.edu tlb[x].used = false; 1163907Ssaidi@eecs.umich.edu usedEntries--; 1173907Ssaidi@eecs.umich.edu } 1183907Ssaidi@eecs.umich.edu lookupTable.erase(tlb[x].range); 1193907Ssaidi@eecs.umich.edu } 1203907Ssaidi@eecs.umich.edu } 1213907Ssaidi@eecs.umich.edu } 1223907Ssaidi@eecs.umich.edu 1233907Ssaidi@eecs.umich.edu 1243907Ssaidi@eecs.umich.edu/* 1253881Ssaidi@eecs.umich.edu i = lookupTable.find(tr); 1263881Ssaidi@eecs.umich.edu if (i != lookupTable.end()) { 1273881Ssaidi@eecs.umich.edu i->second->valid = false; 1283881Ssaidi@eecs.umich.edu if (i->second->used) { 1293881Ssaidi@eecs.umich.edu i->second->used = false; 1303881Ssaidi@eecs.umich.edu usedEntries--; 1313881Ssaidi@eecs.umich.edu } 1323881Ssaidi@eecs.umich.edu freeList.push_front(i->second); 1333881Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Found conflicting entry %#X , deleting it\n", 1343881Ssaidi@eecs.umich.edu i->second); 1353881Ssaidi@eecs.umich.edu lookupTable.erase(i); 1363881Ssaidi@eecs.umich.edu } 1373907Ssaidi@eecs.umich.edu*/ 1383811Ssaidi@eecs.umich.edu 1393826Ssaidi@eecs.umich.edu if (entry != -1) { 1403826Ssaidi@eecs.umich.edu assert(entry < size && entry >= 0); 1413826Ssaidi@eecs.umich.edu new_entry = &tlb[entry]; 1423826Ssaidi@eecs.umich.edu } else { 1433881Ssaidi@eecs.umich.edu if (!freeList.empty()) { 1443881Ssaidi@eecs.umich.edu new_entry = freeList.front(); 1453881Ssaidi@eecs.umich.edu } else { 1463881Ssaidi@eecs.umich.edu x = lastReplaced; 1473881Ssaidi@eecs.umich.edu do { 1483881Ssaidi@eecs.umich.edu ++x; 1493881Ssaidi@eecs.umich.edu if (x == size) 1503881Ssaidi@eecs.umich.edu x = 0; 1513881Ssaidi@eecs.umich.edu if (x == lastReplaced) 1523881Ssaidi@eecs.umich.edu goto insertAllLocked; 1533881Ssaidi@eecs.umich.edu } while (tlb[x].pte.locked()); 1543881Ssaidi@eecs.umich.edu lastReplaced = x; 1553881Ssaidi@eecs.umich.edu new_entry = &tlb[x]; 1563881Ssaidi@eecs.umich.edu } 1573881Ssaidi@eecs.umich.edu /* 1583826Ssaidi@eecs.umich.edu for (x = 0; x < size; x++) { 1593826Ssaidi@eecs.umich.edu if (!tlb[x].valid || !tlb[x].used) { 1603826Ssaidi@eecs.umich.edu new_entry = &tlb[x]; 1613826Ssaidi@eecs.umich.edu break; 1623826Ssaidi@eecs.umich.edu } 1633881Ssaidi@eecs.umich.edu }*/ 1643569Sgblack@eecs.umich.edu } 1653569Sgblack@eecs.umich.edu 1663881Ssaidi@eecs.umich.eduinsertAllLocked: 1673804Ssaidi@eecs.umich.edu // Update the last ently if their all locked 1683881Ssaidi@eecs.umich.edu if (!new_entry) { 1693826Ssaidi@eecs.umich.edu new_entry = &tlb[size-1]; 1703881Ssaidi@eecs.umich.edu } 1713881Ssaidi@eecs.umich.edu 1723881Ssaidi@eecs.umich.edu freeList.remove(new_entry); 1733907Ssaidi@eecs.umich.edu if (new_entry->valid && new_entry->used) 1743907Ssaidi@eecs.umich.edu usedEntries--; 1753929Ssaidi@eecs.umich.edu if (new_entry->valid) 1763929Ssaidi@eecs.umich.edu lookupTable.erase(new_entry->range); 1773907Ssaidi@eecs.umich.edu 1783907Ssaidi@eecs.umich.edu 1793804Ssaidi@eecs.umich.edu assert(PTE.valid()); 1803804Ssaidi@eecs.umich.edu new_entry->range.va = va; 1813881Ssaidi@eecs.umich.edu new_entry->range.size = PTE.size() - 1; 1823804Ssaidi@eecs.umich.edu new_entry->range.partitionId = partition_id; 1833804Ssaidi@eecs.umich.edu new_entry->range.contextId = context_id; 1843804Ssaidi@eecs.umich.edu new_entry->range.real = real; 1853804Ssaidi@eecs.umich.edu new_entry->pte = PTE; 1863804Ssaidi@eecs.umich.edu new_entry->used = true;; 1873804Ssaidi@eecs.umich.edu new_entry->valid = true; 1883804Ssaidi@eecs.umich.edu usedEntries++; 1893569Sgblack@eecs.umich.edu 1903569Sgblack@eecs.umich.edu 1913569Sgblack@eecs.umich.edu 1923863Ssaidi@eecs.umich.edu i = lookupTable.insert(new_entry->range, new_entry); 1933863Ssaidi@eecs.umich.edu assert(i != lookupTable.end()); 1943804Ssaidi@eecs.umich.edu 1953804Ssaidi@eecs.umich.edu // If all entries have there used bit set, clear it on them all, but the 1963804Ssaidi@eecs.umich.edu // one we just inserted 1973804Ssaidi@eecs.umich.edu if (usedEntries == size) { 1983804Ssaidi@eecs.umich.edu clearUsedBits(); 1993804Ssaidi@eecs.umich.edu new_entry->used = true; 2003804Ssaidi@eecs.umich.edu usedEntries++; 2013804Ssaidi@eecs.umich.edu } 2023804Ssaidi@eecs.umich.edu 2033569Sgblack@eecs.umich.edu} 2043804Ssaidi@eecs.umich.edu 2053804Ssaidi@eecs.umich.edu 2063804Ssaidi@eecs.umich.eduTlbEntry* 2074070Ssaidi@eecs.umich.eduTLB::lookup(Addr va, int partition_id, bool real, int context_id, bool 2084070Ssaidi@eecs.umich.edu update_used) 2093804Ssaidi@eecs.umich.edu{ 2103804Ssaidi@eecs.umich.edu MapIter i; 2113804Ssaidi@eecs.umich.edu TlbRange tr; 2123804Ssaidi@eecs.umich.edu TlbEntry *t; 2133804Ssaidi@eecs.umich.edu 2143811Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Looking up entry va=%#x pid=%d cid=%d r=%d\n", 2153811Ssaidi@eecs.umich.edu va, partition_id, context_id, real); 2163804Ssaidi@eecs.umich.edu // Assemble full address structure 2173804Ssaidi@eecs.umich.edu tr.va = va; 2183863Ssaidi@eecs.umich.edu tr.size = MachineBytes; 2193804Ssaidi@eecs.umich.edu tr.contextId = context_id; 2203804Ssaidi@eecs.umich.edu tr.partitionId = partition_id; 2213804Ssaidi@eecs.umich.edu tr.real = real; 2223804Ssaidi@eecs.umich.edu 2233804Ssaidi@eecs.umich.edu // Try to find the entry 2243804Ssaidi@eecs.umich.edu i = lookupTable.find(tr); 2253804Ssaidi@eecs.umich.edu if (i == lookupTable.end()) { 2263811Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: No valid entry found\n"); 2273804Ssaidi@eecs.umich.edu return NULL; 2283804Ssaidi@eecs.umich.edu } 2293804Ssaidi@eecs.umich.edu 2303804Ssaidi@eecs.umich.edu // Mark the entries used bit and clear other used bits in needed 2313804Ssaidi@eecs.umich.edu t = i->second; 2323826Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Valid entry found pa: %#x size: %#x\n", t->pte.paddr(), 2333826Ssaidi@eecs.umich.edu t->pte.size()); 2344070Ssaidi@eecs.umich.edu 2354070Ssaidi@eecs.umich.edu // Update the used bits only if this is a real access (not a fake one from 2364070Ssaidi@eecs.umich.edu // virttophys() 2374070Ssaidi@eecs.umich.edu if (!t->used && update_used) { 2383804Ssaidi@eecs.umich.edu t->used = true; 2393804Ssaidi@eecs.umich.edu usedEntries++; 2403804Ssaidi@eecs.umich.edu if (usedEntries == size) { 2413804Ssaidi@eecs.umich.edu clearUsedBits(); 2423804Ssaidi@eecs.umich.edu t->used = true; 2433804Ssaidi@eecs.umich.edu usedEntries++; 2443804Ssaidi@eecs.umich.edu } 2453804Ssaidi@eecs.umich.edu } 2463804Ssaidi@eecs.umich.edu 2473804Ssaidi@eecs.umich.edu return t; 2483804Ssaidi@eecs.umich.edu} 2493804Ssaidi@eecs.umich.edu 2503826Ssaidi@eecs.umich.eduvoid 2513826Ssaidi@eecs.umich.eduTLB::dumpAll() 2523826Ssaidi@eecs.umich.edu{ 2533863Ssaidi@eecs.umich.edu MapIter i; 2543826Ssaidi@eecs.umich.edu for (int x = 0; x < size; x++) { 2553826Ssaidi@eecs.umich.edu if (tlb[x].valid) { 2563826Ssaidi@eecs.umich.edu DPRINTFN("%4d: %#2x:%#2x %c %#4x %#8x %#8x %#16x\n", 2573826Ssaidi@eecs.umich.edu x, tlb[x].range.partitionId, tlb[x].range.contextId, 2583826Ssaidi@eecs.umich.edu tlb[x].range.real ? 'R' : ' ', tlb[x].range.size, 2593826Ssaidi@eecs.umich.edu tlb[x].range.va, tlb[x].pte.paddr(), tlb[x].pte()); 2603826Ssaidi@eecs.umich.edu } 2613826Ssaidi@eecs.umich.edu } 2623826Ssaidi@eecs.umich.edu} 2633804Ssaidi@eecs.umich.edu 2643804Ssaidi@eecs.umich.eduvoid 2653804Ssaidi@eecs.umich.eduTLB::demapPage(Addr va, int partition_id, bool real, int context_id) 2663804Ssaidi@eecs.umich.edu{ 2673804Ssaidi@eecs.umich.edu TlbRange tr; 2683804Ssaidi@eecs.umich.edu MapIter i; 2693804Ssaidi@eecs.umich.edu 2703863Ssaidi@eecs.umich.edu DPRINTF(IPR, "TLB: Demapping Page va=%#x pid=%#d cid=%d r=%d\n", 2713863Ssaidi@eecs.umich.edu va, partition_id, context_id, real); 2723863Ssaidi@eecs.umich.edu 2733836Ssaidi@eecs.umich.edu cacheValid = false; 2743836Ssaidi@eecs.umich.edu 2753804Ssaidi@eecs.umich.edu // Assemble full address structure 2763804Ssaidi@eecs.umich.edu tr.va = va; 2773863Ssaidi@eecs.umich.edu tr.size = MachineBytes; 2783804Ssaidi@eecs.umich.edu tr.contextId = context_id; 2793804Ssaidi@eecs.umich.edu tr.partitionId = partition_id; 2803804Ssaidi@eecs.umich.edu tr.real = real; 2813804Ssaidi@eecs.umich.edu 2823804Ssaidi@eecs.umich.edu // Demap any entry that conflicts 2833804Ssaidi@eecs.umich.edu i = lookupTable.find(tr); 2843804Ssaidi@eecs.umich.edu if (i != lookupTable.end()) { 2853863Ssaidi@eecs.umich.edu DPRINTF(IPR, "TLB: Demapped page\n"); 2863804Ssaidi@eecs.umich.edu i->second->valid = false; 2873804Ssaidi@eecs.umich.edu if (i->second->used) { 2883804Ssaidi@eecs.umich.edu i->second->used = false; 2893804Ssaidi@eecs.umich.edu usedEntries--; 2903804Ssaidi@eecs.umich.edu } 2913881Ssaidi@eecs.umich.edu freeList.push_front(i->second); 2923804Ssaidi@eecs.umich.edu lookupTable.erase(i); 2933804Ssaidi@eecs.umich.edu } 2943804Ssaidi@eecs.umich.edu} 2953804Ssaidi@eecs.umich.edu 2963804Ssaidi@eecs.umich.eduvoid 2973804Ssaidi@eecs.umich.eduTLB::demapContext(int partition_id, int context_id) 2983804Ssaidi@eecs.umich.edu{ 2993804Ssaidi@eecs.umich.edu int x; 3003863Ssaidi@eecs.umich.edu DPRINTF(IPR, "TLB: Demapping Context pid=%#d cid=%d\n", 3013863Ssaidi@eecs.umich.edu partition_id, context_id); 3023836Ssaidi@eecs.umich.edu cacheValid = false; 3033804Ssaidi@eecs.umich.edu for (x = 0; x < size; x++) { 3043804Ssaidi@eecs.umich.edu if (tlb[x].range.contextId == context_id && 3053804Ssaidi@eecs.umich.edu tlb[x].range.partitionId == partition_id) { 3063881Ssaidi@eecs.umich.edu if (tlb[x].valid == true) { 3073881Ssaidi@eecs.umich.edu freeList.push_front(&tlb[x]); 3083881Ssaidi@eecs.umich.edu } 3093804Ssaidi@eecs.umich.edu tlb[x].valid = false; 3103804Ssaidi@eecs.umich.edu if (tlb[x].used) { 3113804Ssaidi@eecs.umich.edu tlb[x].used = false; 3123804Ssaidi@eecs.umich.edu usedEntries--; 3133804Ssaidi@eecs.umich.edu } 3143804Ssaidi@eecs.umich.edu lookupTable.erase(tlb[x].range); 3153804Ssaidi@eecs.umich.edu } 3163804Ssaidi@eecs.umich.edu } 3173804Ssaidi@eecs.umich.edu} 3183804Ssaidi@eecs.umich.edu 3193804Ssaidi@eecs.umich.eduvoid 3203804Ssaidi@eecs.umich.eduTLB::demapAll(int partition_id) 3213804Ssaidi@eecs.umich.edu{ 3223804Ssaidi@eecs.umich.edu int x; 3233863Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Demapping All pid=%#d\n", partition_id); 3243836Ssaidi@eecs.umich.edu cacheValid = false; 3253804Ssaidi@eecs.umich.edu for (x = 0; x < size; x++) { 3263804Ssaidi@eecs.umich.edu if (!tlb[x].pte.locked() && tlb[x].range.partitionId == partition_id) { 3273881Ssaidi@eecs.umich.edu if (tlb[x].valid == true){ 3283881Ssaidi@eecs.umich.edu freeList.push_front(&tlb[x]); 3293881Ssaidi@eecs.umich.edu } 3303804Ssaidi@eecs.umich.edu tlb[x].valid = false; 3313804Ssaidi@eecs.umich.edu if (tlb[x].used) { 3323804Ssaidi@eecs.umich.edu tlb[x].used = false; 3333804Ssaidi@eecs.umich.edu usedEntries--; 3343804Ssaidi@eecs.umich.edu } 3353804Ssaidi@eecs.umich.edu lookupTable.erase(tlb[x].range); 3363804Ssaidi@eecs.umich.edu } 3373804Ssaidi@eecs.umich.edu } 3383804Ssaidi@eecs.umich.edu} 3393804Ssaidi@eecs.umich.edu 3403804Ssaidi@eecs.umich.eduvoid 3413804Ssaidi@eecs.umich.eduTLB::invalidateAll() 3423804Ssaidi@eecs.umich.edu{ 3433804Ssaidi@eecs.umich.edu int x; 3443836Ssaidi@eecs.umich.edu cacheValid = false; 3453836Ssaidi@eecs.umich.edu 3463881Ssaidi@eecs.umich.edu freeList.clear(); 3473907Ssaidi@eecs.umich.edu lookupTable.clear(); 3483804Ssaidi@eecs.umich.edu for (x = 0; x < size; x++) { 3493881Ssaidi@eecs.umich.edu if (tlb[x].valid == true) 3503881Ssaidi@eecs.umich.edu freeList.push_back(&tlb[x]); 3513804Ssaidi@eecs.umich.edu tlb[x].valid = false; 3523907Ssaidi@eecs.umich.edu tlb[x].used = false; 3533804Ssaidi@eecs.umich.edu } 3543804Ssaidi@eecs.umich.edu usedEntries = 0; 3553804Ssaidi@eecs.umich.edu} 3563804Ssaidi@eecs.umich.edu 3573804Ssaidi@eecs.umich.eduuint64_t 3583804Ssaidi@eecs.umich.eduTLB::TteRead(int entry) { 3593881Ssaidi@eecs.umich.edu if (entry >= size) 3603881Ssaidi@eecs.umich.edu panic("entry: %d\n", entry); 3613881Ssaidi@eecs.umich.edu 3623804Ssaidi@eecs.umich.edu assert(entry < size); 3633881Ssaidi@eecs.umich.edu if (tlb[entry].valid) 3643881Ssaidi@eecs.umich.edu return tlb[entry].pte(); 3653881Ssaidi@eecs.umich.edu else 3663881Ssaidi@eecs.umich.edu return (uint64_t)-1ll; 3673804Ssaidi@eecs.umich.edu} 3683804Ssaidi@eecs.umich.edu 3693804Ssaidi@eecs.umich.eduuint64_t 3703804Ssaidi@eecs.umich.eduTLB::TagRead(int entry) { 3713804Ssaidi@eecs.umich.edu assert(entry < size); 3723804Ssaidi@eecs.umich.edu uint64_t tag; 3733881Ssaidi@eecs.umich.edu if (!tlb[entry].valid) 3743881Ssaidi@eecs.umich.edu return (uint64_t)-1ll; 3753804Ssaidi@eecs.umich.edu 3763881Ssaidi@eecs.umich.edu tag = tlb[entry].range.contextId; 3773881Ssaidi@eecs.umich.edu tag |= tlb[entry].range.va; 3783881Ssaidi@eecs.umich.edu tag |= (uint64_t)tlb[entry].range.partitionId << 61; 3793804Ssaidi@eecs.umich.edu tag |= tlb[entry].range.real ? ULL(1) << 60 : 0; 3803804Ssaidi@eecs.umich.edu tag |= (uint64_t)~tlb[entry].pte._size() << 56; 3813804Ssaidi@eecs.umich.edu return tag; 3823804Ssaidi@eecs.umich.edu} 3833804Ssaidi@eecs.umich.edu 3843804Ssaidi@eecs.umich.edubool 3853804Ssaidi@eecs.umich.eduTLB::validVirtualAddress(Addr va, bool am) 3863804Ssaidi@eecs.umich.edu{ 3873804Ssaidi@eecs.umich.edu if (am) 3883804Ssaidi@eecs.umich.edu return true; 3893804Ssaidi@eecs.umich.edu if (va >= StartVAddrHole && va <= EndVAddrHole) 3903804Ssaidi@eecs.umich.edu return false; 3913804Ssaidi@eecs.umich.edu return true; 3923804Ssaidi@eecs.umich.edu} 3933804Ssaidi@eecs.umich.edu 3943804Ssaidi@eecs.umich.eduvoid 3953804Ssaidi@eecs.umich.eduTLB::writeSfsr(ThreadContext *tc, int reg, bool write, ContextType ct, 3963804Ssaidi@eecs.umich.edu bool se, FaultTypes ft, int asi) 3973804Ssaidi@eecs.umich.edu{ 3983804Ssaidi@eecs.umich.edu uint64_t sfsr; 3993804Ssaidi@eecs.umich.edu sfsr = tc->readMiscReg(reg); 4003804Ssaidi@eecs.umich.edu 4013804Ssaidi@eecs.umich.edu if (sfsr & 0x1) 4023804Ssaidi@eecs.umich.edu sfsr = 0x3; 4033804Ssaidi@eecs.umich.edu else 4043804Ssaidi@eecs.umich.edu sfsr = 1; 4053804Ssaidi@eecs.umich.edu 4063804Ssaidi@eecs.umich.edu if (write) 4073804Ssaidi@eecs.umich.edu sfsr |= 1 << 2; 4083804Ssaidi@eecs.umich.edu sfsr |= ct << 4; 4093804Ssaidi@eecs.umich.edu if (se) 4103804Ssaidi@eecs.umich.edu sfsr |= 1 << 6; 4113804Ssaidi@eecs.umich.edu sfsr |= ft << 7; 4123804Ssaidi@eecs.umich.edu sfsr |= asi << 16; 4133826Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(reg, sfsr); 4143804Ssaidi@eecs.umich.edu} 4153804Ssaidi@eecs.umich.edu 4163826Ssaidi@eecs.umich.eduvoid 4173826Ssaidi@eecs.umich.eduTLB::writeTagAccess(ThreadContext *tc, int reg, Addr va, int context) 4183826Ssaidi@eecs.umich.edu{ 4193916Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: Writing Tag Access: va: %#X ctx: %#X value: %#X\n", 4203916Ssaidi@eecs.umich.edu va, context, mbits(va, 63,13) | mbits(context,12,0)); 4213916Ssaidi@eecs.umich.edu 4223826Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(reg, mbits(va, 63,13) | mbits(context,12,0)); 4233826Ssaidi@eecs.umich.edu} 4243804Ssaidi@eecs.umich.edu 4253804Ssaidi@eecs.umich.eduvoid 4263804Ssaidi@eecs.umich.eduITB::writeSfsr(ThreadContext *tc, bool write, ContextType ct, 4273804Ssaidi@eecs.umich.edu bool se, FaultTypes ft, int asi) 4283804Ssaidi@eecs.umich.edu{ 4293811Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: ITB Fault: w=%d ct=%d ft=%d asi=%d\n", 4303811Ssaidi@eecs.umich.edu (int)write, ct, ft, asi); 4313804Ssaidi@eecs.umich.edu TLB::writeSfsr(tc, MISCREG_MMU_ITLB_SFSR, write, ct, se, ft, asi); 4323804Ssaidi@eecs.umich.edu} 4333804Ssaidi@eecs.umich.edu 4343804Ssaidi@eecs.umich.eduvoid 4353826Ssaidi@eecs.umich.eduITB::writeTagAccess(ThreadContext *tc, Addr va, int context) 4363826Ssaidi@eecs.umich.edu{ 4373826Ssaidi@eecs.umich.edu TLB::writeTagAccess(tc, MISCREG_MMU_ITLB_TAG_ACCESS, va, context); 4383826Ssaidi@eecs.umich.edu} 4393826Ssaidi@eecs.umich.edu 4403826Ssaidi@eecs.umich.eduvoid 4413804Ssaidi@eecs.umich.eduDTB::writeSfr(ThreadContext *tc, Addr a, bool write, ContextType ct, 4423804Ssaidi@eecs.umich.edu bool se, FaultTypes ft, int asi) 4433804Ssaidi@eecs.umich.edu{ 4443811Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: DTB Fault: A=%#x w=%d ct=%d ft=%d asi=%d\n", 4453811Ssaidi@eecs.umich.edu a, (int)write, ct, ft, asi); 4463804Ssaidi@eecs.umich.edu TLB::writeSfsr(tc, MISCREG_MMU_DTLB_SFSR, write, ct, se, ft, asi); 4473826Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_SFAR, a); 4483804Ssaidi@eecs.umich.edu} 4493804Ssaidi@eecs.umich.edu 4503836Ssaidi@eecs.umich.eduvoid 4513826Ssaidi@eecs.umich.eduDTB::writeTagAccess(ThreadContext *tc, Addr va, int context) 4523826Ssaidi@eecs.umich.edu{ 4533826Ssaidi@eecs.umich.edu TLB::writeTagAccess(tc, MISCREG_MMU_DTLB_TAG_ACCESS, va, context); 4543826Ssaidi@eecs.umich.edu} 4553826Ssaidi@eecs.umich.edu 4563826Ssaidi@eecs.umich.edu 4573804Ssaidi@eecs.umich.edu 4583804Ssaidi@eecs.umich.eduFault 4593804Ssaidi@eecs.umich.eduITB::translate(RequestPtr &req, ThreadContext *tc) 4603804Ssaidi@eecs.umich.edu{ 4613833Ssaidi@eecs.umich.edu uint64_t tlbdata = tc->readMiscReg(MISCREG_TLB_DATA); 4623833Ssaidi@eecs.umich.edu 4633836Ssaidi@eecs.umich.edu Addr vaddr = req->getVaddr(); 4643836Ssaidi@eecs.umich.edu TlbEntry *e; 4653836Ssaidi@eecs.umich.edu 4663836Ssaidi@eecs.umich.edu assert(req->getAsi() == ASI_IMPLICIT); 4673836Ssaidi@eecs.umich.edu 4683836Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: ITB Request to translate va=%#x size=%d\n", 4693836Ssaidi@eecs.umich.edu vaddr, req->getSize()); 4703836Ssaidi@eecs.umich.edu 4713836Ssaidi@eecs.umich.edu // Be fast if we can! 4723836Ssaidi@eecs.umich.edu if (cacheValid && cacheState == tlbdata) { 4733836Ssaidi@eecs.umich.edu if (cacheEntry) { 4743836Ssaidi@eecs.umich.edu if (cacheEntry->range.va < vaddr + sizeof(MachInst) && 4753836Ssaidi@eecs.umich.edu cacheEntry->range.va + cacheEntry->range.size >= vaddr) { 4763836Ssaidi@eecs.umich.edu req->setPaddr(cacheEntry->pte.paddr() & ~(cacheEntry->pte.size()-1) | 4773836Ssaidi@eecs.umich.edu vaddr & cacheEntry->pte.size()-1 ); 4783836Ssaidi@eecs.umich.edu return NoFault; 4793836Ssaidi@eecs.umich.edu } 4803836Ssaidi@eecs.umich.edu } else { 4813836Ssaidi@eecs.umich.edu req->setPaddr(vaddr & PAddrImplMask); 4823836Ssaidi@eecs.umich.edu return NoFault; 4833836Ssaidi@eecs.umich.edu } 4843836Ssaidi@eecs.umich.edu } 4853836Ssaidi@eecs.umich.edu 4863833Ssaidi@eecs.umich.edu bool hpriv = bits(tlbdata,0,0); 4873833Ssaidi@eecs.umich.edu bool red = bits(tlbdata,1,1); 4883833Ssaidi@eecs.umich.edu bool priv = bits(tlbdata,2,2); 4893833Ssaidi@eecs.umich.edu bool addr_mask = bits(tlbdata,3,3); 4903833Ssaidi@eecs.umich.edu bool lsu_im = bits(tlbdata,4,4); 4913833Ssaidi@eecs.umich.edu 4923833Ssaidi@eecs.umich.edu int part_id = bits(tlbdata,15,8); 4933833Ssaidi@eecs.umich.edu int tl = bits(tlbdata,18,16); 4943833Ssaidi@eecs.umich.edu int pri_context = bits(tlbdata,47,32); 4953804Ssaidi@eecs.umich.edu int context; 4963804Ssaidi@eecs.umich.edu ContextType ct; 4973804Ssaidi@eecs.umich.edu int asi; 4983804Ssaidi@eecs.umich.edu bool real = false; 4993804Ssaidi@eecs.umich.edu 5003833Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: priv:%d hpriv:%d red:%d lsuim:%d part_id: %#X\n", 5013833Ssaidi@eecs.umich.edu priv, hpriv, red, lsu_im, part_id); 5023811Ssaidi@eecs.umich.edu 5033804Ssaidi@eecs.umich.edu if (tl > 0) { 5043804Ssaidi@eecs.umich.edu asi = ASI_N; 5053804Ssaidi@eecs.umich.edu ct = Nucleus; 5063804Ssaidi@eecs.umich.edu context = 0; 5073804Ssaidi@eecs.umich.edu } else { 5083804Ssaidi@eecs.umich.edu asi = ASI_P; 5093804Ssaidi@eecs.umich.edu ct = Primary; 5103833Ssaidi@eecs.umich.edu context = pri_context; 5113804Ssaidi@eecs.umich.edu } 5123804Ssaidi@eecs.umich.edu 5133833Ssaidi@eecs.umich.edu if ( hpriv || red ) { 5143836Ssaidi@eecs.umich.edu cacheValid = true; 5153836Ssaidi@eecs.umich.edu cacheState = tlbdata; 5163836Ssaidi@eecs.umich.edu cacheEntry = NULL; 5173836Ssaidi@eecs.umich.edu req->setPaddr(vaddr & PAddrImplMask); 5183804Ssaidi@eecs.umich.edu return NoFault; 5193804Ssaidi@eecs.umich.edu } 5203804Ssaidi@eecs.umich.edu 5213836Ssaidi@eecs.umich.edu // If the access is unaligned trap 5223836Ssaidi@eecs.umich.edu if (vaddr & 0x3) { 5233804Ssaidi@eecs.umich.edu writeSfsr(tc, false, ct, false, OtherFault, asi); 5243804Ssaidi@eecs.umich.edu return new MemAddressNotAligned; 5253804Ssaidi@eecs.umich.edu } 5263804Ssaidi@eecs.umich.edu 5273804Ssaidi@eecs.umich.edu if (addr_mask) 5283804Ssaidi@eecs.umich.edu vaddr = vaddr & VAddrAMask; 5293804Ssaidi@eecs.umich.edu 5303804Ssaidi@eecs.umich.edu if (!validVirtualAddress(vaddr, addr_mask)) { 5313804Ssaidi@eecs.umich.edu writeSfsr(tc, false, ct, false, VaOutOfRange, asi); 5323804Ssaidi@eecs.umich.edu return new InstructionAccessException; 5333804Ssaidi@eecs.umich.edu } 5343804Ssaidi@eecs.umich.edu 5353833Ssaidi@eecs.umich.edu if (!lsu_im) { 5363836Ssaidi@eecs.umich.edu e = lookup(vaddr, part_id, true); 5373804Ssaidi@eecs.umich.edu real = true; 5383804Ssaidi@eecs.umich.edu context = 0; 5393804Ssaidi@eecs.umich.edu } else { 5403804Ssaidi@eecs.umich.edu e = lookup(vaddr, part_id, false, context); 5413804Ssaidi@eecs.umich.edu } 5423804Ssaidi@eecs.umich.edu 5433804Ssaidi@eecs.umich.edu if (e == NULL || !e->valid) { 5443916Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 5453804Ssaidi@eecs.umich.edu if (real) 5463804Ssaidi@eecs.umich.edu return new InstructionRealTranslationMiss; 5473804Ssaidi@eecs.umich.edu else 5483804Ssaidi@eecs.umich.edu return new FastInstructionAccessMMUMiss; 5493804Ssaidi@eecs.umich.edu } 5503804Ssaidi@eecs.umich.edu 5513804Ssaidi@eecs.umich.edu // were not priviledged accesing priv page 5523804Ssaidi@eecs.umich.edu if (!priv && e->pte.priv()) { 5533928Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 5543804Ssaidi@eecs.umich.edu writeSfsr(tc, false, ct, false, PrivViolation, asi); 5553804Ssaidi@eecs.umich.edu return new InstructionAccessException; 5563804Ssaidi@eecs.umich.edu } 5573804Ssaidi@eecs.umich.edu 5583836Ssaidi@eecs.umich.edu // cache translation date for next translation 5593836Ssaidi@eecs.umich.edu cacheValid = true; 5603836Ssaidi@eecs.umich.edu cacheState = tlbdata; 5613836Ssaidi@eecs.umich.edu cacheEntry = e; 5623836Ssaidi@eecs.umich.edu 5633826Ssaidi@eecs.umich.edu req->setPaddr(e->pte.paddr() & ~(e->pte.size()-1) | 5643836Ssaidi@eecs.umich.edu vaddr & e->pte.size()-1 ); 5653836Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr()); 5663804Ssaidi@eecs.umich.edu return NoFault; 5673804Ssaidi@eecs.umich.edu} 5683804Ssaidi@eecs.umich.edu 5693804Ssaidi@eecs.umich.edu 5703804Ssaidi@eecs.umich.edu 5713804Ssaidi@eecs.umich.eduFault 5723804Ssaidi@eecs.umich.eduDTB::translate(RequestPtr &req, ThreadContext *tc, bool write) 5733804Ssaidi@eecs.umich.edu{ 5743804Ssaidi@eecs.umich.edu /* @todo this could really use some profiling and fixing to make it faster! */ 5753833Ssaidi@eecs.umich.edu uint64_t tlbdata = tc->readMiscReg(MISCREG_TLB_DATA); 5763836Ssaidi@eecs.umich.edu Addr vaddr = req->getVaddr(); 5773836Ssaidi@eecs.umich.edu Addr size = req->getSize(); 5783836Ssaidi@eecs.umich.edu ASI asi; 5793836Ssaidi@eecs.umich.edu asi = (ASI)req->getAsi(); 5803836Ssaidi@eecs.umich.edu bool implicit = false; 5813836Ssaidi@eecs.umich.edu bool hpriv = bits(tlbdata,0,0); 5823833Ssaidi@eecs.umich.edu 5833836Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: DTB Request to translate va=%#x size=%d asi=%#x\n", 5843836Ssaidi@eecs.umich.edu vaddr, size, asi); 5853836Ssaidi@eecs.umich.edu 5863929Ssaidi@eecs.umich.edu if (lookupTable.size() != 64 - freeList.size()) 5873929Ssaidi@eecs.umich.edu panic("Lookup table size: %d tlb size: %d\n", lookupTable.size(), 5883929Ssaidi@eecs.umich.edu freeList.size()); 5893836Ssaidi@eecs.umich.edu if (asi == ASI_IMPLICIT) 5903836Ssaidi@eecs.umich.edu implicit = true; 5913836Ssaidi@eecs.umich.edu 5923836Ssaidi@eecs.umich.edu if (hpriv && implicit) { 5933836Ssaidi@eecs.umich.edu req->setPaddr(vaddr & PAddrImplMask); 5943836Ssaidi@eecs.umich.edu return NoFault; 5953836Ssaidi@eecs.umich.edu } 5963836Ssaidi@eecs.umich.edu 5973836Ssaidi@eecs.umich.edu // Be fast if we can! 5983836Ssaidi@eecs.umich.edu if (cacheValid && cacheState == tlbdata) { 5994090Ssaidi@eecs.umich.edu 6004090Ssaidi@eecs.umich.edu 6014090Ssaidi@eecs.umich.edu 6024090Ssaidi@eecs.umich.edu if (cacheEntry[0]) { 6034090Ssaidi@eecs.umich.edu TlbEntry *ce = cacheEntry[0]; 6044090Ssaidi@eecs.umich.edu Addr ce_va = ce->range.va; 6054090Ssaidi@eecs.umich.edu if (cacheAsi[0] == asi && 6064090Ssaidi@eecs.umich.edu ce_va < vaddr + size && ce_va + ce->range.size > vaddr && 6074090Ssaidi@eecs.umich.edu (!write || ce->pte.writable())) { 6084090Ssaidi@eecs.umich.edu req->setPaddr(ce->pte.paddrMask() | vaddr & ce->pte.sizeMask()); 6094090Ssaidi@eecs.umich.edu if (ce->pte.sideffect() || (ce->pte.paddr() >> 39) & 1) 6104090Ssaidi@eecs.umich.edu req->setFlags(req->getFlags() | UNCACHEABLE); 6114090Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr()); 6124090Ssaidi@eecs.umich.edu return NoFault; 6134090Ssaidi@eecs.umich.edu } // if matched 6144090Ssaidi@eecs.umich.edu } // if cache entry valid 6154090Ssaidi@eecs.umich.edu if (cacheEntry[1]) { 6164090Ssaidi@eecs.umich.edu TlbEntry *ce = cacheEntry[1]; 6174090Ssaidi@eecs.umich.edu Addr ce_va = ce->range.va; 6184090Ssaidi@eecs.umich.edu if (cacheAsi[1] == asi && 6194090Ssaidi@eecs.umich.edu ce_va < vaddr + size && ce_va + ce->range.size > vaddr && 6204090Ssaidi@eecs.umich.edu (!write || ce->pte.writable())) { 6214090Ssaidi@eecs.umich.edu req->setPaddr(ce->pte.paddrMask() | vaddr & ce->pte.sizeMask()); 6224090Ssaidi@eecs.umich.edu if (ce->pte.sideffect() || (ce->pte.paddr() >> 39) & 1) 6234090Ssaidi@eecs.umich.edu req->setFlags(req->getFlags() | UNCACHEABLE); 6244090Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr()); 6254090Ssaidi@eecs.umich.edu return NoFault; 6264090Ssaidi@eecs.umich.edu } // if matched 6274090Ssaidi@eecs.umich.edu } // if cache entry valid 6284090Ssaidi@eecs.umich.edu } 6293836Ssaidi@eecs.umich.edu 6303833Ssaidi@eecs.umich.edu bool red = bits(tlbdata,1,1); 6313833Ssaidi@eecs.umich.edu bool priv = bits(tlbdata,2,2); 6323833Ssaidi@eecs.umich.edu bool addr_mask = bits(tlbdata,3,3); 6333833Ssaidi@eecs.umich.edu bool lsu_dm = bits(tlbdata,5,5); 6343833Ssaidi@eecs.umich.edu 6353833Ssaidi@eecs.umich.edu int part_id = bits(tlbdata,15,8); 6363833Ssaidi@eecs.umich.edu int tl = bits(tlbdata,18,16); 6373833Ssaidi@eecs.umich.edu int pri_context = bits(tlbdata,47,32); 6383916Ssaidi@eecs.umich.edu int sec_context = bits(tlbdata,63,48); 6393833Ssaidi@eecs.umich.edu 6403804Ssaidi@eecs.umich.edu bool real = false; 6413832Ssaidi@eecs.umich.edu ContextType ct = Primary; 6423832Ssaidi@eecs.umich.edu int context = 0; 6433804Ssaidi@eecs.umich.edu 6443804Ssaidi@eecs.umich.edu TlbEntry *e; 6453804Ssaidi@eecs.umich.edu 6463833Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: priv:%d hpriv:%d red:%d lsudm:%d part_id: %#X\n", 6473833Ssaidi@eecs.umich.edu priv, hpriv, red, lsu_dm, part_id); 6483804Ssaidi@eecs.umich.edu 6493804Ssaidi@eecs.umich.edu if (implicit) { 6503804Ssaidi@eecs.umich.edu if (tl > 0) { 6513804Ssaidi@eecs.umich.edu asi = ASI_N; 6523804Ssaidi@eecs.umich.edu ct = Nucleus; 6533804Ssaidi@eecs.umich.edu context = 0; 6543804Ssaidi@eecs.umich.edu } else { 6553804Ssaidi@eecs.umich.edu asi = ASI_P; 6563804Ssaidi@eecs.umich.edu ct = Primary; 6573833Ssaidi@eecs.umich.edu context = pri_context; 6583804Ssaidi@eecs.umich.edu } 6593910Ssaidi@eecs.umich.edu } else { 6603804Ssaidi@eecs.umich.edu // We need to check for priv level/asi priv 6613910Ssaidi@eecs.umich.edu if (!priv && !hpriv && !AsiIsUnPriv(asi)) { 6623804Ssaidi@eecs.umich.edu // It appears that context should be Nucleus in these cases? 6633804Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, Nucleus, false, IllegalAsi, asi); 6643804Ssaidi@eecs.umich.edu return new PrivilegedAction; 6653804Ssaidi@eecs.umich.edu } 6663910Ssaidi@eecs.umich.edu 6673910Ssaidi@eecs.umich.edu if (!hpriv && AsiIsHPriv(asi)) { 6683804Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, Nucleus, false, IllegalAsi, asi); 6693804Ssaidi@eecs.umich.edu return new DataAccessException; 6703804Ssaidi@eecs.umich.edu } 6713804Ssaidi@eecs.umich.edu 6723910Ssaidi@eecs.umich.edu if (AsiIsPrimary(asi)) { 6733910Ssaidi@eecs.umich.edu context = pri_context; 6743910Ssaidi@eecs.umich.edu ct = Primary; 6753910Ssaidi@eecs.umich.edu } else if (AsiIsSecondary(asi)) { 6763910Ssaidi@eecs.umich.edu context = sec_context; 6773910Ssaidi@eecs.umich.edu ct = Secondary; 6783910Ssaidi@eecs.umich.edu } else if (AsiIsNucleus(asi)) { 6793910Ssaidi@eecs.umich.edu ct = Nucleus; 6803910Ssaidi@eecs.umich.edu context = 0; 6813910Ssaidi@eecs.umich.edu } else { // ???? 6823910Ssaidi@eecs.umich.edu ct = Primary; 6833910Ssaidi@eecs.umich.edu context = pri_context; 6843910Ssaidi@eecs.umich.edu } 6853902Ssaidi@eecs.umich.edu } 6863804Ssaidi@eecs.umich.edu 6873926Ssaidi@eecs.umich.edu if (!implicit && asi != ASI_P && asi != ASI_S) { 6883804Ssaidi@eecs.umich.edu if (AsiIsLittle(asi)) 6893804Ssaidi@eecs.umich.edu panic("Little Endian ASIs not supported\n"); 6903804Ssaidi@eecs.umich.edu if (AsiIsNoFault(asi)) 6913804Ssaidi@eecs.umich.edu panic("No Fault ASIs not supported\n"); 6923856Ssaidi@eecs.umich.edu 6933804Ssaidi@eecs.umich.edu if (AsiIsPartialStore(asi)) 6943804Ssaidi@eecs.umich.edu panic("Partial Store ASIs not supported\n"); 6953824Ssaidi@eecs.umich.edu if (AsiIsInterrupt(asi)) 6963824Ssaidi@eecs.umich.edu panic("Interrupt ASIs not supported\n"); 6973823Ssaidi@eecs.umich.edu 6983804Ssaidi@eecs.umich.edu if (AsiIsMmu(asi)) 6993804Ssaidi@eecs.umich.edu goto handleMmuRegAccess; 7003804Ssaidi@eecs.umich.edu if (AsiIsScratchPad(asi)) 7013804Ssaidi@eecs.umich.edu goto handleScratchRegAccess; 7023824Ssaidi@eecs.umich.edu if (AsiIsQueue(asi)) 7033824Ssaidi@eecs.umich.edu goto handleQueueRegAccess; 7043825Ssaidi@eecs.umich.edu if (AsiIsSparcError(asi)) 7053825Ssaidi@eecs.umich.edu goto handleSparcErrorRegAccess; 7063823Ssaidi@eecs.umich.edu 7073926Ssaidi@eecs.umich.edu if (!AsiIsReal(asi) && !AsiIsNucleus(asi) && !AsiIsAsIfUser(asi) && 7084010Ssaidi@eecs.umich.edu !AsiIsTwin(asi) && !AsiIsBlock(asi)) 7093823Ssaidi@eecs.umich.edu panic("Accessing ASI %#X. Should we?\n", asi); 7103804Ssaidi@eecs.umich.edu } 7113804Ssaidi@eecs.umich.edu 7123826Ssaidi@eecs.umich.edu // If the asi is unaligned trap 7133826Ssaidi@eecs.umich.edu if (vaddr & size-1) { 7143826Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, false, ct, false, OtherFault, asi); 7153826Ssaidi@eecs.umich.edu return new MemAddressNotAligned; 7163826Ssaidi@eecs.umich.edu } 7173826Ssaidi@eecs.umich.edu 7183826Ssaidi@eecs.umich.edu if (addr_mask) 7193826Ssaidi@eecs.umich.edu vaddr = vaddr & VAddrAMask; 7203826Ssaidi@eecs.umich.edu 7213826Ssaidi@eecs.umich.edu if (!validVirtualAddress(vaddr, addr_mask)) { 7223826Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, false, ct, true, VaOutOfRange, asi); 7233826Ssaidi@eecs.umich.edu return new DataAccessException; 7243826Ssaidi@eecs.umich.edu } 7253826Ssaidi@eecs.umich.edu 7263826Ssaidi@eecs.umich.edu 7273910Ssaidi@eecs.umich.edu if ((!lsu_dm && !hpriv && !red) || AsiIsReal(asi)) { 7283804Ssaidi@eecs.umich.edu real = true; 7293804Ssaidi@eecs.umich.edu context = 0; 7303804Ssaidi@eecs.umich.edu }; 7313804Ssaidi@eecs.umich.edu 7323804Ssaidi@eecs.umich.edu if (hpriv && (implicit || (!AsiIsAsIfUser(asi) && !AsiIsReal(asi)))) { 7333836Ssaidi@eecs.umich.edu req->setPaddr(vaddr & PAddrImplMask); 7343804Ssaidi@eecs.umich.edu return NoFault; 7353804Ssaidi@eecs.umich.edu } 7363804Ssaidi@eecs.umich.edu 7373836Ssaidi@eecs.umich.edu e = lookup(vaddr, part_id, real, context); 7383804Ssaidi@eecs.umich.edu 7393804Ssaidi@eecs.umich.edu if (e == NULL || !e->valid) { 7403916Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 7413811Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: DTB Failed to find matching TLB entry\n"); 7423804Ssaidi@eecs.umich.edu if (real) 7433804Ssaidi@eecs.umich.edu return new DataRealTranslationMiss; 7443804Ssaidi@eecs.umich.edu else 7453804Ssaidi@eecs.umich.edu return new FastDataAccessMMUMiss; 7463804Ssaidi@eecs.umich.edu 7473804Ssaidi@eecs.umich.edu } 7483804Ssaidi@eecs.umich.edu 7493928Ssaidi@eecs.umich.edu if (!priv && e->pte.priv()) { 7503928Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 7513928Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), PrivViolation, asi); 7523928Ssaidi@eecs.umich.edu return new DataAccessException; 7533928Ssaidi@eecs.umich.edu } 7543804Ssaidi@eecs.umich.edu 7553804Ssaidi@eecs.umich.edu if (write && !e->pte.writable()) { 7563928Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 7573804Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), OtherFault, asi); 7583804Ssaidi@eecs.umich.edu return new FastDataAccessProtection; 7593804Ssaidi@eecs.umich.edu } 7603804Ssaidi@eecs.umich.edu 7613804Ssaidi@eecs.umich.edu if (e->pte.nofault() && !AsiIsNoFault(asi)) { 7623928Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 7633804Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), LoadFromNfo, asi); 7643804Ssaidi@eecs.umich.edu return new DataAccessException; 7653804Ssaidi@eecs.umich.edu } 7663804Ssaidi@eecs.umich.edu 7673928Ssaidi@eecs.umich.edu if (e->pte.sideffect() && AsiIsNoFault(asi)) { 7683928Ssaidi@eecs.umich.edu writeTagAccess(tc, vaddr, context); 7693928Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, ct, e->pte.sideffect(), SideEffect, asi); 7703928Ssaidi@eecs.umich.edu return new DataAccessException; 7713928Ssaidi@eecs.umich.edu } 7723928Ssaidi@eecs.umich.edu 7733928Ssaidi@eecs.umich.edu 7744090Ssaidi@eecs.umich.edu if (e->pte.sideffect() || (e->pte.paddr() >> 39) & 1) 7753804Ssaidi@eecs.umich.edu req->setFlags(req->getFlags() | UNCACHEABLE); 7763804Ssaidi@eecs.umich.edu 7773836Ssaidi@eecs.umich.edu // cache translation date for next translation 7783836Ssaidi@eecs.umich.edu cacheState = tlbdata; 7793881Ssaidi@eecs.umich.edu if (!cacheValid) { 7803881Ssaidi@eecs.umich.edu cacheEntry[1] = NULL; 7813881Ssaidi@eecs.umich.edu cacheEntry[0] = NULL; 7823881Ssaidi@eecs.umich.edu } 7833881Ssaidi@eecs.umich.edu 7843836Ssaidi@eecs.umich.edu if (cacheEntry[0] != e && cacheEntry[1] != e) { 7853836Ssaidi@eecs.umich.edu cacheEntry[1] = cacheEntry[0]; 7863836Ssaidi@eecs.umich.edu cacheEntry[0] = e; 7873836Ssaidi@eecs.umich.edu cacheAsi[1] = cacheAsi[0]; 7883836Ssaidi@eecs.umich.edu cacheAsi[0] = asi; 7893836Ssaidi@eecs.umich.edu if (implicit) 7903836Ssaidi@eecs.umich.edu cacheAsi[0] = (ASI)0; 7913836Ssaidi@eecs.umich.edu } 7923881Ssaidi@eecs.umich.edu cacheValid = true; 7933826Ssaidi@eecs.umich.edu req->setPaddr(e->pte.paddr() & ~(e->pte.size()-1) | 7943836Ssaidi@eecs.umich.edu vaddr & e->pte.size()-1); 7953836Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr()); 7963804Ssaidi@eecs.umich.edu return NoFault; 7973806Ssaidi@eecs.umich.edu /** Normal flow ends here. */ 7983804Ssaidi@eecs.umich.edu 7993806Ssaidi@eecs.umich.eduhandleScratchRegAccess: 8003806Ssaidi@eecs.umich.edu if (vaddr > 0x38 || (vaddr >= 0x20 && vaddr < 0x30 && !hpriv)) { 8013806Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi); 8023806Ssaidi@eecs.umich.edu return new DataAccessException; 8033806Ssaidi@eecs.umich.edu } 8043824Ssaidi@eecs.umich.edu goto regAccessOk; 8053824Ssaidi@eecs.umich.edu 8063824Ssaidi@eecs.umich.eduhandleQueueRegAccess: 8073824Ssaidi@eecs.umich.edu if (!priv && !hpriv) { 8083824Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi); 8093824Ssaidi@eecs.umich.edu return new PrivilegedAction; 8103824Ssaidi@eecs.umich.edu } 8113881Ssaidi@eecs.umich.edu if (!hpriv && vaddr & 0xF || vaddr > 0x3f8 || vaddr < 0x3c0) { 8123824Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi); 8133824Ssaidi@eecs.umich.edu return new DataAccessException; 8143824Ssaidi@eecs.umich.edu } 8153824Ssaidi@eecs.umich.edu goto regAccessOk; 8163824Ssaidi@eecs.umich.edu 8173825Ssaidi@eecs.umich.eduhandleSparcErrorRegAccess: 8183825Ssaidi@eecs.umich.edu if (!hpriv) { 8194070Ssaidi@eecs.umich.edu writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi); 8204070Ssaidi@eecs.umich.edu if (priv) 8213825Ssaidi@eecs.umich.edu return new DataAccessException; 8224070Ssaidi@eecs.umich.edu else 8233825Ssaidi@eecs.umich.edu return new PrivilegedAction; 8243825Ssaidi@eecs.umich.edu } 8253825Ssaidi@eecs.umich.edu goto regAccessOk; 8263825Ssaidi@eecs.umich.edu 8273825Ssaidi@eecs.umich.edu 8283824Ssaidi@eecs.umich.eduregAccessOk: 8293804Ssaidi@eecs.umich.eduhandleMmuRegAccess: 8303811Ssaidi@eecs.umich.edu DPRINTF(TLB, "TLB: DTB Translating MM IPR access\n"); 8313806Ssaidi@eecs.umich.edu req->setMmapedIpr(true); 8323806Ssaidi@eecs.umich.edu req->setPaddr(req->getVaddr()); 8333806Ssaidi@eecs.umich.edu return NoFault; 8343804Ssaidi@eecs.umich.edu}; 8353804Ssaidi@eecs.umich.edu 8363806Ssaidi@eecs.umich.eduTick 8373806Ssaidi@eecs.umich.eduDTB::doMmuRegRead(ThreadContext *tc, Packet *pkt) 8383806Ssaidi@eecs.umich.edu{ 8393823Ssaidi@eecs.umich.edu Addr va = pkt->getAddr(); 8403823Ssaidi@eecs.umich.edu ASI asi = (ASI)pkt->req->getAsi(); 8414070Ssaidi@eecs.umich.edu uint64_t temp; 8423823Ssaidi@eecs.umich.edu 8433823Ssaidi@eecs.umich.edu DPRINTF(IPR, "Memory Mapped IPR Read: asi=%#X a=%#x\n", 8443823Ssaidi@eecs.umich.edu (uint32_t)pkt->req->getAsi(), pkt->getAddr()); 8453823Ssaidi@eecs.umich.edu 8463823Ssaidi@eecs.umich.edu switch (asi) { 8473823Ssaidi@eecs.umich.edu case ASI_LSU_CONTROL_REG: 8483823Ssaidi@eecs.umich.edu assert(va == 0); 8493823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_LSU_CTRL)); 8503823Ssaidi@eecs.umich.edu break; 8513823Ssaidi@eecs.umich.edu case ASI_MMU: 8523823Ssaidi@eecs.umich.edu switch (va) { 8533823Ssaidi@eecs.umich.edu case 0x8: 8543823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_P_CONTEXT)); 8553823Ssaidi@eecs.umich.edu break; 8563823Ssaidi@eecs.umich.edu case 0x10: 8573823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_S_CONTEXT)); 8583823Ssaidi@eecs.umich.edu break; 8593823Ssaidi@eecs.umich.edu default: 8603823Ssaidi@eecs.umich.edu goto doMmuReadError; 8613823Ssaidi@eecs.umich.edu } 8623823Ssaidi@eecs.umich.edu break; 8633824Ssaidi@eecs.umich.edu case ASI_QUEUE: 8643824Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_QUEUE_CPU_MONDO_HEAD + 8653824Ssaidi@eecs.umich.edu (va >> 4) - 0x3c)); 8663824Ssaidi@eecs.umich.edu break; 8673823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_ZERO_TSB_BASE_PS0: 8683823Ssaidi@eecs.umich.edu assert(va == 0); 8693823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS0)); 8703823Ssaidi@eecs.umich.edu break; 8713823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_ZERO_TSB_BASE_PS1: 8723823Ssaidi@eecs.umich.edu assert(va == 0); 8733823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS1)); 8743823Ssaidi@eecs.umich.edu break; 8753823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_ZERO_CONFIG: 8763823Ssaidi@eecs.umich.edu assert(va == 0); 8773823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_CONFIG)); 8783823Ssaidi@eecs.umich.edu break; 8793823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_ZERO_TSB_BASE_PS0: 8803823Ssaidi@eecs.umich.edu assert(va == 0); 8813823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS0)); 8823823Ssaidi@eecs.umich.edu break; 8833823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_ZERO_TSB_BASE_PS1: 8843823Ssaidi@eecs.umich.edu assert(va == 0); 8853823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS1)); 8863823Ssaidi@eecs.umich.edu break; 8873823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_ZERO_CONFIG: 8883823Ssaidi@eecs.umich.edu assert(va == 0); 8893823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_CONFIG)); 8903823Ssaidi@eecs.umich.edu break; 8913823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS0: 8923823Ssaidi@eecs.umich.edu assert(va == 0); 8933823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS0)); 8943823Ssaidi@eecs.umich.edu break; 8953823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS1: 8963823Ssaidi@eecs.umich.edu assert(va == 0); 8973823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS1)); 8983823Ssaidi@eecs.umich.edu break; 8993823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_NONZERO_CONFIG: 9003823Ssaidi@eecs.umich.edu assert(va == 0); 9013823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_CONFIG)); 9023823Ssaidi@eecs.umich.edu break; 9033823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS0: 9043823Ssaidi@eecs.umich.edu assert(va == 0); 9053823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS0)); 9063823Ssaidi@eecs.umich.edu break; 9073823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS1: 9083823Ssaidi@eecs.umich.edu assert(va == 0); 9093823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS1)); 9103823Ssaidi@eecs.umich.edu break; 9113823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_NONZERO_CONFIG: 9123823Ssaidi@eecs.umich.edu assert(va == 0); 9133823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG)); 9143823Ssaidi@eecs.umich.edu break; 9153826Ssaidi@eecs.umich.edu case ASI_SPARC_ERROR_STATUS_REG: 9163912Ssaidi@eecs.umich.edu pkt->set((uint64_t)0); 9173826Ssaidi@eecs.umich.edu break; 9183823Ssaidi@eecs.umich.edu case ASI_HYP_SCRATCHPAD: 9193823Ssaidi@eecs.umich.edu case ASI_SCRATCHPAD: 9203823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_SCRATCHPAD_R0 + (va >> 3))); 9213823Ssaidi@eecs.umich.edu break; 9223826Ssaidi@eecs.umich.edu case ASI_IMMU: 9233826Ssaidi@eecs.umich.edu switch (va) { 9243833Ssaidi@eecs.umich.edu case 0x0: 9253833Ssaidi@eecs.umich.edu temp = tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS); 9263833Ssaidi@eecs.umich.edu pkt->set(bits(temp,63,22) | bits(temp,12,0) << 48); 9273833Ssaidi@eecs.umich.edu break; 9283906Ssaidi@eecs.umich.edu case 0x18: 9293906Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_SFSR)); 9303906Ssaidi@eecs.umich.edu break; 9313826Ssaidi@eecs.umich.edu case 0x30: 9323826Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS)); 9333826Ssaidi@eecs.umich.edu break; 9343826Ssaidi@eecs.umich.edu default: 9353826Ssaidi@eecs.umich.edu goto doMmuReadError; 9363826Ssaidi@eecs.umich.edu } 9373826Ssaidi@eecs.umich.edu break; 9383823Ssaidi@eecs.umich.edu case ASI_DMMU: 9393823Ssaidi@eecs.umich.edu switch (va) { 9403833Ssaidi@eecs.umich.edu case 0x0: 9413833Ssaidi@eecs.umich.edu temp = tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS); 9423833Ssaidi@eecs.umich.edu pkt->set(bits(temp,63,22) | bits(temp,12,0) << 48); 9433833Ssaidi@eecs.umich.edu break; 9443906Ssaidi@eecs.umich.edu case 0x18: 9453906Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_SFSR)); 9463906Ssaidi@eecs.umich.edu break; 9473906Ssaidi@eecs.umich.edu case 0x20: 9483906Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_SFAR)); 9493906Ssaidi@eecs.umich.edu break; 9503826Ssaidi@eecs.umich.edu case 0x30: 9513826Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS)); 9523826Ssaidi@eecs.umich.edu break; 9533823Ssaidi@eecs.umich.edu case 0x80: 9543823Ssaidi@eecs.umich.edu pkt->set(tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID)); 9553823Ssaidi@eecs.umich.edu break; 9563823Ssaidi@eecs.umich.edu default: 9573823Ssaidi@eecs.umich.edu goto doMmuReadError; 9583823Ssaidi@eecs.umich.edu } 9593823Ssaidi@eecs.umich.edu break; 9603833Ssaidi@eecs.umich.edu case ASI_DMMU_TSB_PS0_PTR_REG: 9614070Ssaidi@eecs.umich.edu pkt->set(MakeTsbPtr(Ps0, 9624070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS), 9634070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS0), 9644070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_CONFIG), 9654070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS0), 9664070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_CONFIG))); 9673833Ssaidi@eecs.umich.edu break; 9683833Ssaidi@eecs.umich.edu case ASI_DMMU_TSB_PS1_PTR_REG: 9694070Ssaidi@eecs.umich.edu pkt->set(MakeTsbPtr(Ps1, 9704070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS), 9714070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS1), 9724070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_CONFIG), 9734070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS1), 9744070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_CONFIG))); 9753833Ssaidi@eecs.umich.edu break; 9763899Ssaidi@eecs.umich.edu case ASI_IMMU_TSB_PS0_PTR_REG: 9774070Ssaidi@eecs.umich.edu pkt->set(MakeTsbPtr(Ps0, 9784070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS), 9794070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS0), 9804070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_CONFIG), 9814070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS0), 9824070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG))); 9833899Ssaidi@eecs.umich.edu break; 9843899Ssaidi@eecs.umich.edu case ASI_IMMU_TSB_PS1_PTR_REG: 9854070Ssaidi@eecs.umich.edu pkt->set(MakeTsbPtr(Ps1, 9864070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS), 9874070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS1), 9884070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_CONFIG), 9894070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS1), 9904070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG))); 9913899Ssaidi@eecs.umich.edu break; 9923833Ssaidi@eecs.umich.edu 9933823Ssaidi@eecs.umich.edu default: 9943823Ssaidi@eecs.umich.edudoMmuReadError: 9953823Ssaidi@eecs.umich.edu panic("need to impl DTB::doMmuRegRead() got asi=%#x, va=%#x\n", 9963823Ssaidi@eecs.umich.edu (uint32_t)asi, va); 9973823Ssaidi@eecs.umich.edu } 9983823Ssaidi@eecs.umich.edu pkt->result = Packet::Success; 9993823Ssaidi@eecs.umich.edu return tc->getCpuPtr()->cycles(1); 10003806Ssaidi@eecs.umich.edu} 10013806Ssaidi@eecs.umich.edu 10023806Ssaidi@eecs.umich.eduTick 10033806Ssaidi@eecs.umich.eduDTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt) 10043806Ssaidi@eecs.umich.edu{ 10053823Ssaidi@eecs.umich.edu uint64_t data = gtoh(pkt->get<uint64_t>()); 10063823Ssaidi@eecs.umich.edu Addr va = pkt->getAddr(); 10073823Ssaidi@eecs.umich.edu ASI asi = (ASI)pkt->req->getAsi(); 10083823Ssaidi@eecs.umich.edu 10093826Ssaidi@eecs.umich.edu Addr ta_insert; 10103826Ssaidi@eecs.umich.edu Addr va_insert; 10113826Ssaidi@eecs.umich.edu Addr ct_insert; 10123826Ssaidi@eecs.umich.edu int part_insert; 10133826Ssaidi@eecs.umich.edu int entry_insert = -1; 10143826Ssaidi@eecs.umich.edu bool real_insert; 10153863Ssaidi@eecs.umich.edu bool ignore; 10163863Ssaidi@eecs.umich.edu int part_id; 10173863Ssaidi@eecs.umich.edu int ctx_id; 10183826Ssaidi@eecs.umich.edu PageTableEntry pte; 10193826Ssaidi@eecs.umich.edu 10203825Ssaidi@eecs.umich.edu DPRINTF(IPR, "Memory Mapped IPR Write: asi=%#X a=%#x d=%#X\n", 10213823Ssaidi@eecs.umich.edu (uint32_t)asi, va, data); 10223823Ssaidi@eecs.umich.edu 10233823Ssaidi@eecs.umich.edu switch (asi) { 10243823Ssaidi@eecs.umich.edu case ASI_LSU_CONTROL_REG: 10253823Ssaidi@eecs.umich.edu assert(va == 0); 10263823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_LSU_CTRL, data); 10273823Ssaidi@eecs.umich.edu break; 10283823Ssaidi@eecs.umich.edu case ASI_MMU: 10293823Ssaidi@eecs.umich.edu switch (va) { 10303823Ssaidi@eecs.umich.edu case 0x8: 10313823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_P_CONTEXT, data); 10323823Ssaidi@eecs.umich.edu break; 10333823Ssaidi@eecs.umich.edu case 0x10: 10343823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_S_CONTEXT, data); 10353823Ssaidi@eecs.umich.edu break; 10363823Ssaidi@eecs.umich.edu default: 10373823Ssaidi@eecs.umich.edu goto doMmuWriteError; 10383823Ssaidi@eecs.umich.edu } 10393823Ssaidi@eecs.umich.edu break; 10403824Ssaidi@eecs.umich.edu case ASI_QUEUE: 10413825Ssaidi@eecs.umich.edu assert(mbits(data,13,6) == data); 10423824Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_QUEUE_CPU_MONDO_HEAD + 10433824Ssaidi@eecs.umich.edu (va >> 4) - 0x3c, data); 10443824Ssaidi@eecs.umich.edu break; 10453823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_ZERO_TSB_BASE_PS0: 10463823Ssaidi@eecs.umich.edu assert(va == 0); 10473823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS0, data); 10483823Ssaidi@eecs.umich.edu break; 10493823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_ZERO_TSB_BASE_PS1: 10503823Ssaidi@eecs.umich.edu assert(va == 0); 10513823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS1, data); 10523823Ssaidi@eecs.umich.edu break; 10533823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_ZERO_CONFIG: 10543823Ssaidi@eecs.umich.edu assert(va == 0); 10553823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_C0_CONFIG, data); 10563823Ssaidi@eecs.umich.edu break; 10573823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_ZERO_TSB_BASE_PS0: 10583823Ssaidi@eecs.umich.edu assert(va == 0); 10593823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS0, data); 10603823Ssaidi@eecs.umich.edu break; 10613823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_ZERO_TSB_BASE_PS1: 10623823Ssaidi@eecs.umich.edu assert(va == 0); 10633823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS1, data); 10643823Ssaidi@eecs.umich.edu break; 10653823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_ZERO_CONFIG: 10663823Ssaidi@eecs.umich.edu assert(va == 0); 10673823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_C0_CONFIG, data); 10683823Ssaidi@eecs.umich.edu break; 10693823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS0: 10703823Ssaidi@eecs.umich.edu assert(va == 0); 10713823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS0, data); 10723823Ssaidi@eecs.umich.edu break; 10733823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_NONZERO_TSB_BASE_PS1: 10743823Ssaidi@eecs.umich.edu assert(va == 0); 10753823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS1, data); 10763823Ssaidi@eecs.umich.edu break; 10773823Ssaidi@eecs.umich.edu case ASI_DMMU_CTXT_NONZERO_CONFIG: 10783823Ssaidi@eecs.umich.edu assert(va == 0); 10793823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_CX_CONFIG, data); 10803823Ssaidi@eecs.umich.edu break; 10813823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS0: 10823823Ssaidi@eecs.umich.edu assert(va == 0); 10833823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS0, data); 10843823Ssaidi@eecs.umich.edu break; 10853823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_NONZERO_TSB_BASE_PS1: 10863823Ssaidi@eecs.umich.edu assert(va == 0); 10873823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS1, data); 10883823Ssaidi@eecs.umich.edu break; 10893823Ssaidi@eecs.umich.edu case ASI_IMMU_CTXT_NONZERO_CONFIG: 10903823Ssaidi@eecs.umich.edu assert(va == 0); 10913823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG, data); 10923823Ssaidi@eecs.umich.edu break; 10933825Ssaidi@eecs.umich.edu case ASI_SPARC_ERROR_EN_REG: 10943825Ssaidi@eecs.umich.edu case ASI_SPARC_ERROR_STATUS_REG: 10953825Ssaidi@eecs.umich.edu warn("Ignoring write to SPARC ERROR regsiter\n"); 10963825Ssaidi@eecs.umich.edu break; 10973823Ssaidi@eecs.umich.edu case ASI_HYP_SCRATCHPAD: 10983823Ssaidi@eecs.umich.edu case ASI_SCRATCHPAD: 10993823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_SCRATCHPAD_R0 + (va >> 3), data); 11003823Ssaidi@eecs.umich.edu break; 11013826Ssaidi@eecs.umich.edu case ASI_IMMU: 11023826Ssaidi@eecs.umich.edu switch (va) { 11033906Ssaidi@eecs.umich.edu case 0x18: 11043906Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_SFSR, data); 11053906Ssaidi@eecs.umich.edu break; 11063826Ssaidi@eecs.umich.edu case 0x30: 11073916Ssaidi@eecs.umich.edu sext<59>(bits(data, 59,0)); 11083826Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS, data); 11093826Ssaidi@eecs.umich.edu break; 11103826Ssaidi@eecs.umich.edu default: 11113826Ssaidi@eecs.umich.edu goto doMmuWriteError; 11123826Ssaidi@eecs.umich.edu } 11133826Ssaidi@eecs.umich.edu break; 11143826Ssaidi@eecs.umich.edu case ASI_ITLB_DATA_ACCESS_REG: 11153826Ssaidi@eecs.umich.edu entry_insert = bits(va, 8,3); 11163826Ssaidi@eecs.umich.edu case ASI_ITLB_DATA_IN_REG: 11173826Ssaidi@eecs.umich.edu assert(entry_insert != -1 || mbits(va,10,9) == va); 11183826Ssaidi@eecs.umich.edu ta_insert = tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_TAG_ACCESS); 11193826Ssaidi@eecs.umich.edu va_insert = mbits(ta_insert, 63,13); 11203826Ssaidi@eecs.umich.edu ct_insert = mbits(ta_insert, 12,0); 11213826Ssaidi@eecs.umich.edu part_insert = tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID); 11223826Ssaidi@eecs.umich.edu real_insert = bits(va, 9,9); 11233826Ssaidi@eecs.umich.edu pte.populate(data, bits(va,10,10) ? PageTableEntry::sun4v : 11243826Ssaidi@eecs.umich.edu PageTableEntry::sun4u); 11253826Ssaidi@eecs.umich.edu tc->getITBPtr()->insert(va_insert, part_insert, ct_insert, real_insert, 11263826Ssaidi@eecs.umich.edu pte, entry_insert); 11273826Ssaidi@eecs.umich.edu break; 11283826Ssaidi@eecs.umich.edu case ASI_DTLB_DATA_ACCESS_REG: 11293826Ssaidi@eecs.umich.edu entry_insert = bits(va, 8,3); 11303826Ssaidi@eecs.umich.edu case ASI_DTLB_DATA_IN_REG: 11313826Ssaidi@eecs.umich.edu assert(entry_insert != -1 || mbits(va,10,9) == va); 11323826Ssaidi@eecs.umich.edu ta_insert = tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS); 11333826Ssaidi@eecs.umich.edu va_insert = mbits(ta_insert, 63,13); 11343826Ssaidi@eecs.umich.edu ct_insert = mbits(ta_insert, 12,0); 11353826Ssaidi@eecs.umich.edu part_insert = tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID); 11363826Ssaidi@eecs.umich.edu real_insert = bits(va, 9,9); 11373826Ssaidi@eecs.umich.edu pte.populate(data, bits(va,10,10) ? PageTableEntry::sun4v : 11383826Ssaidi@eecs.umich.edu PageTableEntry::sun4u); 11393826Ssaidi@eecs.umich.edu insert(va_insert, part_insert, ct_insert, real_insert, pte, entry_insert); 11403826Ssaidi@eecs.umich.edu break; 11413863Ssaidi@eecs.umich.edu case ASI_IMMU_DEMAP: 11423863Ssaidi@eecs.umich.edu ignore = false; 11433863Ssaidi@eecs.umich.edu ctx_id = -1; 11443863Ssaidi@eecs.umich.edu part_id = tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID); 11453863Ssaidi@eecs.umich.edu switch (bits(va,5,4)) { 11463863Ssaidi@eecs.umich.edu case 0: 11473863Ssaidi@eecs.umich.edu ctx_id = tc->readMiscRegWithEffect(MISCREG_MMU_P_CONTEXT); 11483863Ssaidi@eecs.umich.edu break; 11493863Ssaidi@eecs.umich.edu case 1: 11503863Ssaidi@eecs.umich.edu ignore = true; 11513863Ssaidi@eecs.umich.edu break; 11523863Ssaidi@eecs.umich.edu case 3: 11533863Ssaidi@eecs.umich.edu ctx_id = 0; 11543863Ssaidi@eecs.umich.edu break; 11553863Ssaidi@eecs.umich.edu default: 11563863Ssaidi@eecs.umich.edu ignore = true; 11573863Ssaidi@eecs.umich.edu } 11583863Ssaidi@eecs.umich.edu 11593863Ssaidi@eecs.umich.edu switch(bits(va,7,6)) { 11603863Ssaidi@eecs.umich.edu case 0: // demap page 11613863Ssaidi@eecs.umich.edu if (!ignore) 11623863Ssaidi@eecs.umich.edu tc->getITBPtr()->demapPage(mbits(va,63,13), part_id, 11633863Ssaidi@eecs.umich.edu bits(va,9,9), ctx_id); 11643863Ssaidi@eecs.umich.edu break; 11653863Ssaidi@eecs.umich.edu case 1: //demap context 11663863Ssaidi@eecs.umich.edu if (!ignore) 11673863Ssaidi@eecs.umich.edu tc->getITBPtr()->demapContext(part_id, ctx_id); 11683863Ssaidi@eecs.umich.edu break; 11693863Ssaidi@eecs.umich.edu case 2: 11703863Ssaidi@eecs.umich.edu tc->getITBPtr()->demapAll(part_id); 11713863Ssaidi@eecs.umich.edu break; 11723863Ssaidi@eecs.umich.edu default: 11733863Ssaidi@eecs.umich.edu panic("Invalid type for IMMU demap\n"); 11743863Ssaidi@eecs.umich.edu } 11753863Ssaidi@eecs.umich.edu break; 11763823Ssaidi@eecs.umich.edu case ASI_DMMU: 11773823Ssaidi@eecs.umich.edu switch (va) { 11783906Ssaidi@eecs.umich.edu case 0x18: 11793906Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_SFSR, data); 11803906Ssaidi@eecs.umich.edu break; 11813826Ssaidi@eecs.umich.edu case 0x30: 11823916Ssaidi@eecs.umich.edu sext<59>(bits(data, 59,0)); 11833826Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_DTLB_TAG_ACCESS, data); 11843826Ssaidi@eecs.umich.edu break; 11853823Ssaidi@eecs.umich.edu case 0x80: 11863823Ssaidi@eecs.umich.edu tc->setMiscRegWithEffect(MISCREG_MMU_PART_ID, data); 11873823Ssaidi@eecs.umich.edu break; 11883823Ssaidi@eecs.umich.edu default: 11893823Ssaidi@eecs.umich.edu goto doMmuWriteError; 11903823Ssaidi@eecs.umich.edu } 11913823Ssaidi@eecs.umich.edu break; 11923863Ssaidi@eecs.umich.edu case ASI_DMMU_DEMAP: 11933863Ssaidi@eecs.umich.edu ignore = false; 11943863Ssaidi@eecs.umich.edu ctx_id = -1; 11953863Ssaidi@eecs.umich.edu part_id = tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID); 11963863Ssaidi@eecs.umich.edu switch (bits(va,5,4)) { 11973863Ssaidi@eecs.umich.edu case 0: 11983863Ssaidi@eecs.umich.edu ctx_id = tc->readMiscRegWithEffect(MISCREG_MMU_P_CONTEXT); 11993863Ssaidi@eecs.umich.edu break; 12003863Ssaidi@eecs.umich.edu case 1: 12013863Ssaidi@eecs.umich.edu ctx_id = tc->readMiscRegWithEffect(MISCREG_MMU_S_CONTEXT); 12023863Ssaidi@eecs.umich.edu break; 12033863Ssaidi@eecs.umich.edu case 3: 12043863Ssaidi@eecs.umich.edu ctx_id = 0; 12053863Ssaidi@eecs.umich.edu break; 12063863Ssaidi@eecs.umich.edu default: 12073863Ssaidi@eecs.umich.edu ignore = true; 12083863Ssaidi@eecs.umich.edu } 12093863Ssaidi@eecs.umich.edu 12103863Ssaidi@eecs.umich.edu switch(bits(va,7,6)) { 12113863Ssaidi@eecs.umich.edu case 0: // demap page 12123863Ssaidi@eecs.umich.edu if (!ignore) 12133863Ssaidi@eecs.umich.edu demapPage(mbits(va,63,13), part_id, bits(va,9,9), ctx_id); 12143863Ssaidi@eecs.umich.edu break; 12153863Ssaidi@eecs.umich.edu case 1: //demap context 12163863Ssaidi@eecs.umich.edu if (!ignore) 12173863Ssaidi@eecs.umich.edu demapContext(part_id, ctx_id); 12183863Ssaidi@eecs.umich.edu break; 12193863Ssaidi@eecs.umich.edu case 2: 12203863Ssaidi@eecs.umich.edu demapAll(part_id); 12213863Ssaidi@eecs.umich.edu break; 12223863Ssaidi@eecs.umich.edu default: 12233863Ssaidi@eecs.umich.edu panic("Invalid type for IMMU demap\n"); 12243863Ssaidi@eecs.umich.edu } 12253863Ssaidi@eecs.umich.edu break; 12263823Ssaidi@eecs.umich.edu default: 12273823Ssaidi@eecs.umich.edudoMmuWriteError: 12283823Ssaidi@eecs.umich.edu panic("need to impl DTB::doMmuRegWrite() got asi=%#x, va=%#x d=%#x\n", 12293823Ssaidi@eecs.umich.edu (uint32_t)pkt->req->getAsi(), pkt->getAddr(), data); 12303823Ssaidi@eecs.umich.edu } 12313823Ssaidi@eecs.umich.edu pkt->result = Packet::Success; 12323823Ssaidi@eecs.umich.edu return tc->getCpuPtr()->cycles(1); 12333806Ssaidi@eecs.umich.edu} 12343806Ssaidi@eecs.umich.edu 12353804Ssaidi@eecs.umich.eduvoid 12364070Ssaidi@eecs.umich.eduDTB::GetTsbPtr(ThreadContext *tc, Addr addr, int ctx, Addr *ptrs) 12374070Ssaidi@eecs.umich.edu{ 12384070Ssaidi@eecs.umich.edu uint64_t tag_access = mbits(addr,63,13) | mbits(ctx,12,0); 12394070Ssaidi@eecs.umich.edu ptrs[0] = MakeTsbPtr(Ps0, tag_access, 12404070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS0), 12414070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_CONFIG), 12424070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS0), 12434070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_CONFIG)); 12444070Ssaidi@eecs.umich.edu ptrs[1] = MakeTsbPtr(Ps1, tag_access, 12454070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_TSB_PS1), 12464070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_C0_CONFIG), 12474070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_TSB_PS1), 12484070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_DTLB_CX_CONFIG)); 12494070Ssaidi@eecs.umich.edu ptrs[2] = MakeTsbPtr(Ps0, tag_access, 12504070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS0), 12514070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_CONFIG), 12524070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS0), 12534070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG)); 12544070Ssaidi@eecs.umich.edu ptrs[3] = MakeTsbPtr(Ps1, tag_access, 12554070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_TSB_PS1), 12564070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_C0_CONFIG), 12574070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_TSB_PS1), 12584070Ssaidi@eecs.umich.edu tc->readMiscRegWithEffect(MISCREG_MMU_ITLB_CX_CONFIG)); 12594070Ssaidi@eecs.umich.edu} 12604070Ssaidi@eecs.umich.edu 12614070Ssaidi@eecs.umich.edu 12624070Ssaidi@eecs.umich.edu 12634070Ssaidi@eecs.umich.edu 12644070Ssaidi@eecs.umich.edu 12654070Ssaidi@eecs.umich.eduuint64_t 12664070Ssaidi@eecs.umich.eduDTB::MakeTsbPtr(TsbPageSize ps, uint64_t tag_access, uint64_t c0_tsb, 12674070Ssaidi@eecs.umich.edu uint64_t c0_config, uint64_t cX_tsb, uint64_t cX_config) 12684070Ssaidi@eecs.umich.edu{ 12694070Ssaidi@eecs.umich.edu uint64_t tsb; 12704070Ssaidi@eecs.umich.edu uint64_t config; 12714070Ssaidi@eecs.umich.edu 12724070Ssaidi@eecs.umich.edu if (bits(tag_access, 12,0) == 0) { 12734070Ssaidi@eecs.umich.edu tsb = c0_tsb; 12744070Ssaidi@eecs.umich.edu config = c0_config; 12754070Ssaidi@eecs.umich.edu } else { 12764070Ssaidi@eecs.umich.edu tsb = cX_tsb; 12774070Ssaidi@eecs.umich.edu config = cX_config; 12784070Ssaidi@eecs.umich.edu } 12794070Ssaidi@eecs.umich.edu 12804070Ssaidi@eecs.umich.edu uint64_t ptr = mbits(tsb,63,13); 12814070Ssaidi@eecs.umich.edu bool split = bits(tsb,12,12); 12824070Ssaidi@eecs.umich.edu int tsb_size = bits(tsb,3,0); 12834070Ssaidi@eecs.umich.edu int page_size = (ps == Ps0) ? bits(config, 2,0) : bits(config,10,8); 12844070Ssaidi@eecs.umich.edu 12854070Ssaidi@eecs.umich.edu if (ps == Ps1 && split) 12864070Ssaidi@eecs.umich.edu ptr |= ULL(1) << (13 + tsb_size); 12874070Ssaidi@eecs.umich.edu ptr |= (tag_access >> (9 + page_size * 3)) & mask(12+tsb_size, 4); 12884070Ssaidi@eecs.umich.edu 12894070Ssaidi@eecs.umich.edu return ptr; 12904070Ssaidi@eecs.umich.edu} 12914070Ssaidi@eecs.umich.edu 12924070Ssaidi@eecs.umich.edu 12934070Ssaidi@eecs.umich.eduvoid 12943804Ssaidi@eecs.umich.eduTLB::serialize(std::ostream &os) 12953804Ssaidi@eecs.umich.edu{ 12964000Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(size); 12974000Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(usedEntries); 12984000Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(lastReplaced); 12994000Ssaidi@eecs.umich.edu 13004000Ssaidi@eecs.umich.edu // convert the pointer based free list into an index based one 13014000Ssaidi@eecs.umich.edu int *free_list = (int*)malloc(sizeof(int) * size); 13024000Ssaidi@eecs.umich.edu int cntr = 0; 13034000Ssaidi@eecs.umich.edu std::list<TlbEntry*>::iterator i; 13044000Ssaidi@eecs.umich.edu i = freeList.begin(); 13054000Ssaidi@eecs.umich.edu while (i != freeList.end()) { 13064000Ssaidi@eecs.umich.edu free_list[cntr++] = ((size_t)*i - (size_t)tlb)/ sizeof(TlbEntry); 13074000Ssaidi@eecs.umich.edu i++; 13084000Ssaidi@eecs.umich.edu } 13094000Ssaidi@eecs.umich.edu SERIALIZE_SCALAR(cntr); 13104000Ssaidi@eecs.umich.edu SERIALIZE_ARRAY(free_list, cntr); 13114000Ssaidi@eecs.umich.edu 13124000Ssaidi@eecs.umich.edu for (int x = 0; x < size; x++) { 13134000Ssaidi@eecs.umich.edu nameOut(os, csprintf("%s.PTE%d", name(), x)); 13144000Ssaidi@eecs.umich.edu tlb[x].serialize(os); 13154000Ssaidi@eecs.umich.edu } 13163804Ssaidi@eecs.umich.edu} 13173804Ssaidi@eecs.umich.edu 13183804Ssaidi@eecs.umich.eduvoid 13193804Ssaidi@eecs.umich.eduTLB::unserialize(Checkpoint *cp, const std::string §ion) 13203804Ssaidi@eecs.umich.edu{ 13214000Ssaidi@eecs.umich.edu int oldSize; 13224000Ssaidi@eecs.umich.edu 13234000Ssaidi@eecs.umich.edu paramIn(cp, section, "size", oldSize); 13244000Ssaidi@eecs.umich.edu if (oldSize != size) 13254000Ssaidi@eecs.umich.edu panic("Don't support unserializing different sized TLBs\n"); 13264000Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(usedEntries); 13274000Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(lastReplaced); 13284000Ssaidi@eecs.umich.edu 13294000Ssaidi@eecs.umich.edu int cntr; 13304000Ssaidi@eecs.umich.edu UNSERIALIZE_SCALAR(cntr); 13314000Ssaidi@eecs.umich.edu 13324000Ssaidi@eecs.umich.edu int *free_list = (int*)malloc(sizeof(int) * cntr); 13334000Ssaidi@eecs.umich.edu freeList.clear(); 13344000Ssaidi@eecs.umich.edu UNSERIALIZE_ARRAY(free_list, cntr); 13354000Ssaidi@eecs.umich.edu for (int x = 0; x < cntr; x++) 13364000Ssaidi@eecs.umich.edu freeList.push_back(&tlb[free_list[x]]); 13374000Ssaidi@eecs.umich.edu 13384000Ssaidi@eecs.umich.edu lookupTable.clear(); 13394000Ssaidi@eecs.umich.edu for (int x = 0; x < size; x++) { 13404000Ssaidi@eecs.umich.edu tlb[x].unserialize(cp, csprintf("%s.PTE%d", section, x)); 13414000Ssaidi@eecs.umich.edu if (tlb[x].valid) 13424000Ssaidi@eecs.umich.edu lookupTable.insert(tlb[x].range, &tlb[x]); 13434000Ssaidi@eecs.umich.edu 13444000Ssaidi@eecs.umich.edu } 13453804Ssaidi@eecs.umich.edu} 13463804Ssaidi@eecs.umich.edu 13473804Ssaidi@eecs.umich.edu 13483804Ssaidi@eecs.umich.eduDEFINE_SIM_OBJECT_CLASS_NAME("SparcTLB", TLB) 13493804Ssaidi@eecs.umich.edu 13503804Ssaidi@eecs.umich.eduBEGIN_DECLARE_SIM_OBJECT_PARAMS(ITB) 13513804Ssaidi@eecs.umich.edu 13523804Ssaidi@eecs.umich.edu Param<int> size; 13533804Ssaidi@eecs.umich.edu 13543804Ssaidi@eecs.umich.eduEND_DECLARE_SIM_OBJECT_PARAMS(ITB) 13553804Ssaidi@eecs.umich.edu 13563804Ssaidi@eecs.umich.eduBEGIN_INIT_SIM_OBJECT_PARAMS(ITB) 13573804Ssaidi@eecs.umich.edu 13583804Ssaidi@eecs.umich.edu INIT_PARAM_DFLT(size, "TLB size", 48) 13593804Ssaidi@eecs.umich.edu 13603804Ssaidi@eecs.umich.eduEND_INIT_SIM_OBJECT_PARAMS(ITB) 13613804Ssaidi@eecs.umich.edu 13623804Ssaidi@eecs.umich.edu 13633804Ssaidi@eecs.umich.eduCREATE_SIM_OBJECT(ITB) 13643804Ssaidi@eecs.umich.edu{ 13653804Ssaidi@eecs.umich.edu return new ITB(getInstanceName(), size); 13663804Ssaidi@eecs.umich.edu} 13673804Ssaidi@eecs.umich.edu 13683804Ssaidi@eecs.umich.eduREGISTER_SIM_OBJECT("SparcITB", ITB) 13693804Ssaidi@eecs.umich.edu 13703804Ssaidi@eecs.umich.eduBEGIN_DECLARE_SIM_OBJECT_PARAMS(DTB) 13713804Ssaidi@eecs.umich.edu 13723804Ssaidi@eecs.umich.edu Param<int> size; 13733804Ssaidi@eecs.umich.edu 13743804Ssaidi@eecs.umich.eduEND_DECLARE_SIM_OBJECT_PARAMS(DTB) 13753804Ssaidi@eecs.umich.edu 13763804Ssaidi@eecs.umich.eduBEGIN_INIT_SIM_OBJECT_PARAMS(DTB) 13773804Ssaidi@eecs.umich.edu 13783804Ssaidi@eecs.umich.edu INIT_PARAM_DFLT(size, "TLB size", 64) 13793804Ssaidi@eecs.umich.edu 13803804Ssaidi@eecs.umich.eduEND_INIT_SIM_OBJECT_PARAMS(DTB) 13813804Ssaidi@eecs.umich.edu 13823804Ssaidi@eecs.umich.edu 13833804Ssaidi@eecs.umich.eduCREATE_SIM_OBJECT(DTB) 13843804Ssaidi@eecs.umich.edu{ 13853804Ssaidi@eecs.umich.edu return new DTB(getInstanceName(), size); 13863804Ssaidi@eecs.umich.edu} 13873804Ssaidi@eecs.umich.edu 13883804Ssaidi@eecs.umich.eduREGISTER_SIM_OBJECT("SparcDTB", DTB) 13893804Ssaidi@eecs.umich.edu} 1390