tlb.hh (10687:276da6265ab8) tlb.hh (10905:a6ca6831e775)
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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69 Stats::Formula data_misses;
70 Stats::Formula data_acv;
71 Stats::Formula data_accesses;
72
73
74 typedef std::multimap<Addr, int> PageTable;
75 PageTable lookupTable; // Quick lookup into page table
76
1/*
2 * Copyright (c) 2001-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

--- 60 unchanged lines hidden (view full) ---

69 Stats::Formula data_misses;
70 Stats::Formula data_acv;
71 Stats::Formula data_accesses;
72
73
74 typedef std::multimap<Addr, int> PageTable;
75 PageTable lookupTable; // Quick lookup into page table
76
77 TlbEntry *table; // the Page Table
78 int size; // TLB Size
77 std::vector<TlbEntry> table; // the Page Table
79 int nlu; // not last used entry (for replacement)
80
78 int nlu; // not last used entry (for replacement)
79
81 void nextnlu() { if (++nlu >= size) nlu = 0; }
80 void nextnlu() { if (++nlu >= table.size()) nlu = 0; }
82 TlbEntry *lookup(Addr vpn, uint8_t asn);
83
84 public:
85 typedef AlphaTLBParams Params;
86 TLB(const Params *p);
87 virtual ~TLB();
88
89 void takeOverFrom(BaseTLB *otlb) {}
90
91 virtual void regStats();
92
81 TlbEntry *lookup(Addr vpn, uint8_t asn);
82
83 public:
84 typedef AlphaTLBParams Params;
85 TLB(const Params *p);
86 virtual ~TLB();
87
88 void takeOverFrom(BaseTLB *otlb) {}
89
90 virtual void regStats();
91
93 int getsize() const { return size; }
92 int getsize() const { return table.size(); }
94
95 TlbEntry &index(bool advance = true);
96 void insert(Addr vaddr, TlbEntry &entry);
97
98 void flushAll();
99 void flushProcesses();
100 void flushAddr(Addr addr, uint8_t asn);
101

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113 // unimplemented bits must be all 0 or all 1
114 Addr unimplBits = vaddr & VAddrUnImplMask;
115 return unimplBits == 0 || unimplBits == VAddrUnImplMask;
116 }
117
118 static Fault checkCacheability(RequestPtr &req, bool itb = false);
119
120 // Checkpointing
93
94 TlbEntry &index(bool advance = true);
95 void insert(Addr vaddr, TlbEntry &entry);
96
97 void flushAll();
98 void flushProcesses();
99 void flushAddr(Addr addr, uint8_t asn);
100

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112 // unimplemented bits must be all 0 or all 1
113 Addr unimplBits = vaddr & VAddrUnImplMask;
114 return unimplBits == 0 || unimplBits == VAddrUnImplMask;
115 }
116
117 static Fault checkCacheability(RequestPtr &req, bool itb = false);
118
119 // Checkpointing
121 virtual void serialize(std::ostream &os);
122 virtual void unserialize(Checkpoint *cp, const std::string &section);
120 void serialize(CheckpointOut &cp) const M5_ATTR_OVERRIDE;
121 void unserialize(CheckpointIn &cp) M5_ATTR_OVERRIDE;
123
124 // Most recently used page table entries
125 TlbEntry *EntryCache[3];
126 inline void
127 flushCache()
128 {
129 memset(EntryCache, 0, 3 * sizeof(TlbEntry*));
130 }

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123 // Most recently used page table entries
124 TlbEntry *EntryCache[3];
125 inline void
126 flushCache()
127 {
128 memset(EntryCache, 0, 3 * sizeof(TlbEntry*));
129 }

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