base.cc (6658:f4de76601762) base.cc (6665:874f2ee2f115)
1/*
2 * Copyright (c) 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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40#include "config/the_isa.hh"
41#include "mem/cache/base.hh"
42#include "mem/cache/prefetch/base.hh"
43#include "mem/request.hh"
44
45BasePrefetcher::BasePrefetcher(const BaseCacheParams *p)
46 : size(p->prefetcher_size), pageStop(!p->prefetch_past_page),
47 serialSquash(p->prefetch_serial_squash),
1/*
2 * Copyright (c) 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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40#include "config/the_isa.hh"
41#include "mem/cache/base.hh"
42#include "mem/cache/prefetch/base.hh"
43#include "mem/request.hh"
44
45BasePrefetcher::BasePrefetcher(const BaseCacheParams *p)
46 : size(p->prefetcher_size), pageStop(!p->prefetch_past_page),
47 serialSquash(p->prefetch_serial_squash),
48 cacheCheckPush(p->prefetch_cache_check_push),
49 onlyData(p->prefetch_data_accesses_only)
50{
51}
52
53void
54BasePrefetcher::setCache(BaseCache *_cache)
55{
56 cache = _cache;

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138 return NULL;
139 }
140
141 PacketPtr pkt;
142 bool keep_trying = false;
143 do {
144 pkt = *pf.begin();
145 pf.pop_front();
48 onlyData(p->prefetch_data_accesses_only)
49{
50}
51
52void
53BasePrefetcher::setCache(BaseCache *_cache)
54{
55 cache = _cache;

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137 return NULL;
138 }
139
140 PacketPtr pkt;
141 bool keep_trying = false;
142 do {
143 pkt = *pf.begin();
144 pf.pop_front();
146 if (!cacheCheckPush) {
147 keep_trying = cache->inCache(pkt->getAddr());
148 }
149
150 if (keep_trying) {
151 DPRINTF(HWPrefetch, "addr 0x%x in cache, skipping\n",
152 pkt->getAddr());
153 delete pkt->req;
154 delete pkt;
155 }
156

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221 Addr addr = *addrIter;
222
223 pfIdentified++;
224
225 DPRINTF(HWPrefetch, "Found a pf candidate addr: 0x%x, "
226 "inserting into prefetch queue with delay %d time %d\n",
227 addr, *delayIter, time);
228
145
146 if (keep_trying) {
147 DPRINTF(HWPrefetch, "addr 0x%x in cache, skipping\n",
148 pkt->getAddr());
149 delete pkt->req;
150 delete pkt;
151 }
152

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217 Addr addr = *addrIter;
218
219 pfIdentified++;
220
221 DPRINTF(HWPrefetch, "Found a pf candidate addr: 0x%x, "
222 "inserting into prefetch queue with delay %d time %d\n",
223 addr, *delayIter, time);
224
229 // Check if it is already in the cache
230 if (cacheCheckPush && cache->inCache(addr)) {
231 DPRINTF(HWPrefetch, "Prefetch addr already in cache\n");
232 continue;
233 }
234
235 // Check if it is already in the miss_queue
236 if (cache->inMissQueue(addr)) {
237 DPRINTF(HWPrefetch, "Prefetch addr already in miss queue\n");
238 continue;
239 }
240
241 // Check if it is already in the pf buffer
242 if (inPrefetch(addr) != pf.end()) {
243 pfBufferHit++;
244 DPRINTF(HWPrefetch, "Prefetch addr already in pf buffer\n");
245 continue;
246 }
247
248 // create a prefetch memreq

--- 45 unchanged lines hidden --- 		225 // Check if it is already in the pf buffer
226 if (inPrefetch(addr) != pf.end()) {
227 pfBufferHit++;
228 DPRINTF(HWPrefetch, "Prefetch addr already in pf buffer\n");
229 continue;
230 }
231
232 // create a prefetch memreq

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