From 7405a3530b99f57b1d4a427a47e285afe5dd6e7f Mon Sep 17 00:00:00 2001 From: Ron Dreslinski Date: Tue, 14 Mar 2006 18:03:34 -0500 Subject: Remove unneeded header files. Add some forward declerations. Fix ordering problem of variables in constructor (see sourceforge) Factor out code from header into _impl file to speed building process (keep cache_builder smaller in size) --HG-- extra : convert_revision : 20087f88f95628af716094e09c2287e09580149e --- mem/cache/prefetch/tagged_prefetcher_impl.hh | 73 ++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 mem/cache/prefetch/tagged_prefetcher_impl.hh (limited to 'mem') diff --git a/mem/cache/prefetch/tagged_prefetcher_impl.hh b/mem/cache/prefetch/tagged_prefetcher_impl.hh new file mode 100644 index 000000000..6c27256a9 --- /dev/null +++ b/mem/cache/prefetch/tagged_prefetcher_impl.hh @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file + * Describes a tagged prefetcher based on template policies. + */ + +#include "mem/cache/prefetch/tagged_prefetcher.hh" + +template +TaggedPrefetcher:: +TaggedPrefetcher(int size, bool pageStop, bool serialSquash, + bool cacheCheckPush, bool onlyData, + Tick latency, int degree) + :Prefetcher(size, pageStop, serialSquash, + cacheCheckPush, onlyData), + latency(latency), degree(degree) +{ +} + +template +void +TaggedPrefetcher:: +calculatePrefetch(MemReqPtr &req, std::list &addresses, + std::list &delays) +{ + Addr blkAddr = req->paddr & ~(Addr)(this->blkSize-1); + + for (int d=1; d <= degree; d++) { + Addr newAddr = blkAddr + d*(this->blkSize); + if (this->pageStop && + (blkAddr & ~(TheISA::VMPageSize - 1)) != + (newAddr & ~(TheISA::VMPageSize - 1))) + { + //Spanned the page, so now stop + this->pfSpanPage += degree - d + 1; + return; + } + else + { + addresses.push_back(newAddr); + delays.push_back(latency); + } + } +} + + -- cgit v1.2.3 From 73b0fbc3e1fa1138e73d6486743ecdf24213e057 Mon Sep 17 00:00:00 2001 From: Ron Dreslinski Date: Thu, 16 Mar 2006 11:34:19 -0500 Subject: Don't forget to check in the needed header file for the conditional prefetch building. --HG-- extra : convert_revision : 2c2562da323fa1249af72af3a89c7666c745ae2b --- mem/config/prefetch.hh | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 mem/config/prefetch.hh (limited to 'mem') diff --git a/mem/config/prefetch.hh b/mem/config/prefetch.hh new file mode 100644 index 000000000..03eb570f0 --- /dev/null +++ b/mem/config/prefetch.hh @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2004-2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/** + * @file + * Central location to configure which prefetch types we want to build + * into the simulator. In the future, this should probably be + * autogenerated by some sort of configuration script. + */ +#define USE_TAGGED 1 //Be sure not to turn this off, it is also used for no + //prefetching case unless you always want to use a + //different prefetcher +//#define USE_STRIDED 1 +//#define USE_GHB 1 -- cgit v1.2.3