tlb.hh revision 6141:5babc3f3d8c8
1/* 2 * Copyright (c) 2007 The Hewlett-Packard Development Company 3 * All rights reserved. 4 * 5 * Redistribution and use of this software in source and binary forms, 6 * with or without modification, are permitted provided that the 7 * following conditions are met: 8 * 9 * The software must be used only for Non-Commercial Use which means any 10 * use which is NOT directed to receiving any direct monetary 11 * compensation for, or commercial advantage from such use. Illustrative 12 * examples of non-commercial use are academic research, personal study, 13 * teaching, education and corporate research & development. 14 * Illustrative examples of commercial use are distributing products for 15 * commercial advantage and providing services using the software for 16 * commercial advantage. 17 * 18 * If you wish to use this software or functionality therein that may be 19 * covered by patents for commercial use, please contact: 20 * Director of Intellectual Property Licensing 21 * Office of Strategy and Technology 22 * Hewlett-Packard Company 23 * 1501 Page Mill Road 24 * Palo Alto, California 94304 25 * 26 * Redistributions of source code must retain the above copyright notice, 27 * this list of conditions and the following disclaimer. Redistributions 28 * in binary form must reproduce the above copyright notice, this list of 29 * conditions and the following disclaimer in the documentation and/or 30 * other materials provided with the distribution. Neither the name of 31 * the COPYRIGHT HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its 32 * contributors may be used to endorse or promote products derived from 33 * this software without specific prior written permission. No right of 34 * sublicense is granted herewith. Derivatives of the software and 35 * output created using the software may be prepared, but only for 36 * Non-Commercial Uses. Derivatives of the software may be shared with 37 * others provided: (i) the others agree to abide by the list of 38 * conditions herein which includes the Non-Commercial Use restrictions; 39 * and (ii) such Derivatives of the software include the above copyright 40 * notice to acknowledge the contribution from this software where 41 * applicable, this list of conditions and the disclaimer below. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 44 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 45 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 46 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 47 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 48 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 49 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 50 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 51 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 52 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 53 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 54 * 55 * Authors: Gabe Black 56 */ 57 58#ifndef __ARCH_X86_TLB_HH__ 59#define __ARCH_X86_TLB_HH__ 60 61#include <list> 62#include <vector> 63#include <string> 64 65#include "arch/x86/pagetable.hh" 66#include "arch/x86/segmentregs.hh" 67#include "config/full_system.hh" 68#include "mem/mem_object.hh" 69#include "mem/request.hh" 70#include "params/X86TLB.hh" 71#include "sim/faults.hh" 72#include "sim/tlb.hh" 73#include "sim/sim_object.hh" 74 75class ThreadContext; 76class Packet; 77 78namespace X86ISA 79{ 80 class Walker; 81 82 class TLB : public BaseTLB 83 { 84 protected: 85 friend class Walker; 86 87 typedef std::list<TlbEntry *> EntryList; 88 89 uint32_t configAddress; 90 91 public: 92 93 typedef X86TLBParams Params; 94 TLB(const Params *p); 95 96 void dumpAll(); 97 98 TlbEntry *lookup(Addr va, bool update_lru = true); 99 100 void setConfigAddress(uint32_t addr); 101 102 protected: 103 104 EntryList::iterator lookupIt(Addr va, bool update_lru = true); 105 106#if FULL_SYSTEM 107 protected: 108 109 Walker * walker; 110#endif 111 112 public: 113 void invalidateAll(); 114 115 void invalidateNonGlobal(); 116 117 void demapPage(Addr va, uint64_t asn); 118 119 protected: 120 int size; 121 122 TlbEntry * tlb; 123 124 EntryList freeList; 125 EntryList entryList; 126 127 Fault translateInt(RequestPtr req, ThreadContext *tc); 128 129 Fault translate(RequestPtr req, ThreadContext *tc, 130 Translation *translation, Mode mode, 131 bool &delayedResponse, bool timing); 132 133 public: 134 135 Fault translateAtomic(RequestPtr req, ThreadContext *tc, Mode mode); 136 void translateTiming(RequestPtr req, ThreadContext *tc, 137 Translation *translation, Mode mode); 138 139#if FULL_SYSTEM 140 Tick doMmuRegRead(ThreadContext *tc, Packet *pkt); 141 Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt); 142#endif 143 144 TlbEntry * insert(Addr vpn, TlbEntry &entry); 145 146 // Checkpointing 147 virtual void serialize(std::ostream &os); 148 virtual void unserialize(Checkpoint *cp, const std::string §ion); 149 }; 150} 151 152#endif // __ARCH_X86_TLB_HH__ 153