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authorSteve Reinhardt <stever@gmail.com>2008-02-10 14:15:42 -0800
committerSteve Reinhardt <stever@gmail.com>2008-02-10 14:15:42 -0800
commitd56e77c180aeca0ff1ba271378424787345ec0b8 (patch)
tree2533f37fd2657cca05c3459aba34e128548c8172 /src/mem/cache/tags/base.hh
parent6cc1573923754ecb406d03ab4d807f928737c294 (diff)
downloadgem5-d56e77c180aeca0ff1ba271378424787345ec0b8.tar.xz
Rename cache files for brevity and consistency with rest of tree.
--HG-- rename : src/mem/cache/base_cache.cc => src/mem/cache/base.cc rename : src/mem/cache/base_cache.hh => src/mem/cache/base.hh rename : src/mem/cache/cache_blk.cc => src/mem/cache/blk.cc rename : src/mem/cache/cache_blk.hh => src/mem/cache/blk.hh rename : src/mem/cache/cache_builder.cc => src/mem/cache/builder.cc rename : src/mem/cache/miss/mshr.cc => src/mem/cache/mshr.cc rename : src/mem/cache/miss/mshr.hh => src/mem/cache/mshr.hh rename : src/mem/cache/miss/mshr_queue.cc => src/mem/cache/mshr_queue.cc rename : src/mem/cache/miss/mshr_queue.hh => src/mem/cache/mshr_queue.hh rename : src/mem/cache/prefetch/base_prefetcher.cc => src/mem/cache/prefetch/base.cc rename : src/mem/cache/prefetch/base_prefetcher.hh => src/mem/cache/prefetch/base.hh rename : src/mem/cache/prefetch/ghb_prefetcher.cc => src/mem/cache/prefetch/ghb.cc rename : src/mem/cache/prefetch/ghb_prefetcher.hh => src/mem/cache/prefetch/ghb.hh rename : src/mem/cache/prefetch/stride_prefetcher.cc => src/mem/cache/prefetch/stride.cc rename : src/mem/cache/prefetch/stride_prefetcher.hh => src/mem/cache/prefetch/stride.hh rename : src/mem/cache/prefetch/tagged_prefetcher.cc => src/mem/cache/prefetch/tagged.cc rename : src/mem/cache/prefetch/tagged_prefetcher.hh => src/mem/cache/prefetch/tagged.hh rename : src/mem/cache/tags/base_tags.cc => src/mem/cache/tags/base.cc rename : src/mem/cache/tags/base_tags.hh => src/mem/cache/tags/base.hh rename : src/mem/cache/tags/Repl.py => src/mem/cache/tags/iic_repl/Repl.py rename : src/mem/cache/tags/repl/gen.cc => src/mem/cache/tags/iic_repl/gen.cc rename : src/mem/cache/tags/repl/gen.hh => src/mem/cache/tags/iic_repl/gen.hh rename : src/mem/cache/tags/repl/repl.hh => src/mem/cache/tags/iic_repl/repl.hh extra : convert_revision : ff7a35cc155a8d80317563c45cebe405984eac62
Diffstat (limited to 'src/mem/cache/tags/base.hh')
-rw-r--r--src/mem/cache/tags/base.hh143
1 files changed, 143 insertions, 0 deletions
diff --git a/src/mem/cache/tags/base.hh b/src/mem/cache/tags/base.hh
new file mode 100644
index 000000000..b7b0c7ef0
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+++ b/src/mem/cache/tags/base.hh
@@ -0,0 +1,143 @@
+/*
+ * Copyright (c) 2003-2005 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.
+ *
+ * Authors: Erik Hallnor
+ * Ron Dreslinski
+ */
+
+/**
+ * @file
+ * Declaration of a common base class for cache tagstore objects.
+ */
+
+#ifndef __BASE_TAGS_HH__
+#define __BASE_TAGS_HH__
+
+#include <string>
+#include "base/statistics.hh"
+#include "base/callback.hh"
+
+class BaseCache;
+
+/**
+ * A common base class of Cache tagstore objects.
+ */
+class BaseTags
+{
+ protected:
+ /** Pointer to the parent cache. */
+ BaseCache *cache;
+
+ /** Local copy of the parent cache name. Used for DPRINTF. */
+ std::string objName;
+
+ /**
+ * The number of tags that need to be touched to meet the warmup
+ * percentage.
+ */
+ int warmupBound;
+ /** Marked true when the cache is warmed up. */
+ bool warmedUp;
+
+ // Statistics
+ /**
+ * @addtogroup CacheStatistics
+ * @{
+ */
+
+ /** Number of replacements of valid blocks per thread. */
+ Stats::Vector<> replacements;
+ /** Per cycle average of the number of tags that hold valid data. */
+ Stats::Average<> tagsInUse;
+
+ /** The total number of references to a block before it is replaced. */
+ Stats::Scalar<> totalRefs;
+
+ /**
+ * The number of reference counts sampled. This is different from
+ * replacements because we sample all the valid blocks when the simulator
+ * exits.
+ */
+ Stats::Scalar<> sampledRefs;
+
+ /**
+ * Average number of references to a block before is was replaced.
+ * @todo This should change to an average stat once we have them.
+ */
+ Stats::Formula avgRefs;
+
+ /** The cycle that the warmup percentage was hit. */
+ Stats::Scalar<> warmupCycle;
+ /**
+ * @}
+ */
+
+ public:
+
+ /**
+ * Destructor.
+ */
+ virtual ~BaseTags() {}
+
+ /**
+ * Set the parent cache back pointer. Also copies the cache name to
+ * objName.
+ * @param _cache Pointer to parent cache.
+ */
+ void setCache(BaseCache *_cache);
+
+ /**
+ * Return the parent cache name.
+ * @return the parent cache name.
+ */
+ const std::string &name() const
+ {
+ return objName;
+ }
+
+ /**
+ * Register local statistics.
+ * @param name The name to preceed each statistic name.
+ */
+ void regStats(const std::string &name);
+
+ /**
+ * Average in the reference count for valid blocks when the simulation
+ * exits.
+ */
+ virtual void cleanupRefs() {}
+};
+
+class BaseTagsCallback : public Callback
+{
+ BaseTags *tags;
+ public:
+ BaseTagsCallback(BaseTags *t) : tags(t) {}
+ virtual void process() { tags->cleanupRefs(); };
+};
+
+#endif //__BASE_TAGS_HH__