tlb.cc (3906:4cf7d8d42349) tlb.cc (3907:00f18b4eedb5)
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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76void
77TLB::insert(Addr va, int partition_id, int context_id, bool real,
78 const PageTableEntry& PTE, int entry)
79{
80
81
82 MapIter i;
83 TlbEntry *new_entry = NULL;
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;

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

76void
77TLB::insert(Addr va, int partition_id, int context_id, bool real,
78 const PageTableEntry& PTE, int entry)
79{
80
81
82 MapIter i;
83 TlbEntry *new_entry = NULL;
84 TlbRange tr;
84// TlbRange tr;
85 int x;
86
87 cacheValid = false;
85 int x;
86
87 cacheValid = false;
88 tr.va = va;
88 /* tr.va = va;
89 tr.size = PTE.size() - 1;
90 tr.contextId = context_id;
91 tr.partitionId = partition_id;
92 tr.real = real;
89 tr.size = PTE.size() - 1;
90 tr.contextId = context_id;
91 tr.partitionId = partition_id;
92 tr.real = real;
93*/
93
94
94
95 DPRINTF(TLB, "TLB: Inserting TLB Entry; va=%#x pa=%#x pid=%d cid=%d r=%d entryid=%d\n",
96 va, PTE.paddr(), partition_id, context_id, (int)real, entry);
97
98 // Demap any entry that conflicts
95 DPRINTF(TLB, "TLB: Inserting TLB Entry; va=%#x pa=%#x pid=%d cid=%d r=%d entryid=%d\n",
96 va, PTE.paddr(), partition_id, context_id, (int)real, entry);
97
98 // Demap any entry that conflicts
99 for (x = 0; x < size; x++) {
100 if (tlb[x].range.real == real &&
101 tlb[x].range.partitionId == partition_id &&
102 tlb[x].range.va < va + PTE.size() - 1 &&
103 tlb[x].range.va + tlb[x].range.size >= va &&
104 (real || tlb[x].range.contextId == context_id ))
105 {
106 if (tlb[x].valid) {
107 freeList.push_front(&tlb[x]);
108 DPRINTF(TLB, "TLB: Conflicting entry %#X , deleting it\n", x);
109
110 tlb[x].valid = false;
111 if (tlb[x].used) {
112 tlb[x].used = false;
113 usedEntries--;
114 }
115 lookupTable.erase(tlb[x].range);
116 }
117 }
118 }
119
120
121/*
99 i = lookupTable.find(tr);
100 if (i != lookupTable.end()) {
101 i->second->valid = false;
102 if (i->second->used) {
103 i->second->used = false;
104 usedEntries--;
105 }
106 freeList.push_front(i->second);
107 DPRINTF(TLB, "TLB: Found conflicting entry %#X , deleting it\n",
108 i->second);
109 lookupTable.erase(i);
110 }
122 i = lookupTable.find(tr);
123 if (i != lookupTable.end()) {
124 i->second->valid = false;
125 if (i->second->used) {
126 i->second->used = false;
127 usedEntries--;
128 }
129 freeList.push_front(i->second);
130 DPRINTF(TLB, "TLB: Found conflicting entry %#X , deleting it\n",
131 i->second);
132 lookupTable.erase(i);
133 }
134*/
111
135
112
113 if (entry != -1) {
114 assert(entry < size && entry >= 0);
115 new_entry = &tlb[entry];
116 } else {
117 if (!freeList.empty()) {
118 new_entry = freeList.front();
119 } else {
120 x = lastReplaced;
121 do {
122 ++x;
123 if (x == size)
124 x = 0;
125 if (x == lastReplaced)
126 goto insertAllLocked;
127 } while (tlb[x].pte.locked());
128 lastReplaced = x;
129 new_entry = &tlb[x];
136 if (entry != -1) {
137 assert(entry < size && entry >= 0);
138 new_entry = &tlb[entry];
139 } else {
140 if (!freeList.empty()) {
141 new_entry = freeList.front();
142 } else {
143 x = lastReplaced;
144 do {
145 ++x;
146 if (x == size)
147 x = 0;
148 if (x == lastReplaced)
149 goto insertAllLocked;
150 } while (tlb[x].pte.locked());
151 lastReplaced = x;
152 new_entry = &tlb[x];
130 lookupTable.erase(new_entry->range);
131 }
132 /*
133 for (x = 0; x < size; x++) {
134 if (!tlb[x].valid || !tlb[x].used) {
135 new_entry = &tlb[x];
136 break;
137 }
138 }*/
139 }
140
141insertAllLocked:
142 // Update the last ently if their all locked
143 if (!new_entry) {
144 new_entry = &tlb[size-1];
153 }
154 /*
155 for (x = 0; x < size; x++) {
156 if (!tlb[x].valid || !tlb[x].used) {
157 new_entry = &tlb[x];
158 break;
159 }
160 }*/
161 }
162
163insertAllLocked:
164 // Update the last ently if their all locked
165 if (!new_entry) {
166 new_entry = &tlb[size-1];
145 lookupTable.erase(new_entry->range);
146 }
147
148 freeList.remove(new_entry);
167 }
168
169 freeList.remove(new_entry);
170 if (new_entry->valid && new_entry->used)
171 usedEntries--;
172
173 lookupTable.erase(new_entry->range);
174
175
149 DPRINTF(TLB, "Using entry: %#X\n", new_entry);
150
151 assert(PTE.valid());
152 new_entry->range.va = va;
153 new_entry->range.size = PTE.size() - 1;
154 new_entry->range.partitionId = partition_id;
155 new_entry->range.contextId = context_id;
156 new_entry->range.real = real;

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310
311void
312TLB::invalidateAll()
313{
314 int x;
315 cacheValid = false;
316
317 freeList.clear();
176 DPRINTF(TLB, "Using entry: %#X\n", new_entry);
177
178 assert(PTE.valid());
179 new_entry->range.va = va;
180 new_entry->range.size = PTE.size() - 1;
181 new_entry->range.partitionId = partition_id;
182 new_entry->range.contextId = context_id;
183 new_entry->range.real = real;

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337
338void
339TLB::invalidateAll()
340{
341 int x;
342 cacheValid = false;
343
344 freeList.clear();
345 lookupTable.clear();
318 for (x = 0; x < size; x++) {
319 if (tlb[x].valid == true)
320 freeList.push_back(&tlb[x]);
321 tlb[x].valid = false;
346 for (x = 0; x < size; x++) {
347 if (tlb[x].valid == true)
348 freeList.push_back(&tlb[x]);
349 tlb[x].valid = false;
350 tlb[x].used = false;
322 }
323 usedEntries = 0;
324}
325
326uint64_t
327TLB::TteRead(int entry) {
328 if (entry >= size)
329 panic("entry: %d\n", entry);

--- 937 unchanged lines hidden --- 		351 }
352 usedEntries = 0;
353}
354
355uint64_t
356TLB::TteRead(int entry) {
357 if (entry >= size)
358 panic("entry: %d\n", entry);

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