From af27586fbc75480725fbef0564775fe5aa8cc8d8 Mon Sep 17 00:00:00 2001 From: Rekai Gonzalez Alberquilla Date: Thu, 7 Apr 2016 11:32:38 -0500 Subject: mem: Add priority to QueuedPrefetcher Queued prefetcher entries now count with a priority field. The idea is to add packets ordered by priority and then by age. For the existing algorithms in which priority doesn't make sense, it is set to 0 for all deferred packets in the queue. --- src/mem/cache/prefetch/stride.cc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/mem/cache/prefetch/stride.cc') diff --git a/src/mem/cache/prefetch/stride.cc b/src/mem/cache/prefetch/stride.cc index 4456cf237..6b8fee828 100644 --- a/src/mem/cache/prefetch/stride.cc +++ b/src/mem/cache/prefetch/stride.cc @@ -98,7 +98,7 @@ StridePrefetcher::PCTable::~PCTable() { void StridePrefetcher::calculatePrefetch(const PacketPtr &pkt, - std::vector &addresses) + std::vector &addresses) { if (!pkt->req->hasPC()) { DPRINTF(HWPrefetch, "Ignoring request with no PC.\n"); @@ -153,7 +153,7 @@ StridePrefetcher::calculatePrefetch(const PacketPtr &pkt, Addr new_addr = pkt_addr + d * prefetch_stride; if (samePage(pkt_addr, new_addr)) { DPRINTF(HWPrefetch, "Queuing prefetch to %#x.\n", new_addr); - addresses.push_back(new_addr); + addresses.push_back(AddrPriority(new_addr, 0)); } else { // Record the number of page crossing prefetches generated pfSpanPage += degree - d + 1; -- cgit v1.2.3