2 * Copyright (c) 2005 The Regents of The University of Michigan
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28 * Authors: Ron Dreslinski
33 * Describes a tagged prefetcher based on template policies.
36 #include "mem/cache/prefetch/tagged.hh"
38 #include "params/TaggedPrefetcher.hh"
40 TaggedPrefetcher::TaggedPrefetcher(const TaggedPrefetcherParams
*p
)
41 : QueuedPrefetcher(p
), degree(p
->degree
)
47 TaggedPrefetcher::calculatePrefetch(const PacketPtr
&pkt
,
48 std::vector
<AddrPriority
> &addresses
)
50 Addr blkAddr
= pkt
->getAddr() & ~(Addr
)(blkSize
-1);
52 for (int d
= 1; d
<= degree
; d
++) {
53 Addr newAddr
= blkAddr
+ d
*(blkSize
);
54 if (!samePage(blkAddr
, newAddr
)) {
55 // Count number of unissued prefetches due to page crossing
56 pfSpanPage
+= degree
- d
+ 1;
59 addresses
.push_back(AddrPriority(newAddr
,0));
65 TaggedPrefetcherParams::create()
67 return new TaggedPrefetcher(this);