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28 * Authors: Ron Dreslinski
33 * Describes a tagged prefetcher based on template policies.
36 #include "mem/cache/prefetch/tagged_prefetcher.hh"
38 template <class TagStore, class Buffering>
39 TaggedPrefetcher<TagStore, Buffering>::
40 TaggedPrefetcher(int size, bool pageStop, bool serialSquash,
41 bool cacheCheckPush, bool onlyData,
42 Tick latency, int degree)
43 :Prefetcher<TagStore, Buffering>(size, pageStop, serialSquash,
44 cacheCheckPush, onlyData),
45 latency(latency), degree(degree)
49 template <class TagStore, class Buffering>
51 TaggedPrefetcher<TagStore, Buffering>::
52 calculatePrefetch(MemReqPtr &req, std::list<Addr> &addresses,
53 std::list<Tick> &delays)
55 Addr blkAddr = req->paddr & ~(Addr)(this->blkSize-1);
57 for (int d=1; d <= degree; d++) {
58 Addr newAddr = blkAddr + d*(this->blkSize);
60 (blkAddr & ~(TheISA::VMPageSize - 1)) !=
61 (newAddr & ~(TheISA::VMPageSize - 1)))
63 //Spanned the page, so now stop
64 this->pfSpanPage += degree - d + 1;
69 addresses.push_back(newAddr);
70 delays.push_back(latency);