ruby: Import the latest ruby changes from gems.

This was done with an automated process, so there could be things that were
done in this tree in the past that didn't make it.  One known regression
is that atomic memory operations do not seem to work properly anymore.

1 files changed, 88 insertions, 0 deletions

diff --git a/src/mem/ruby/filters/MultiGrainBloomFilter.hh b/src/mem/ruby/filters/MultiGrainBloomFilter.hh
new file mode 100644
index 000000000..66a32ecd4
--- /dev/null
+++ b/src/mem/ruby/filters/MultiGrainBloomFilter.hh
@@ -0,0 +1,88 @@
+
+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * 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.
+ */
+
+/*
+ * MultiGrainBloomFilter.hh
+ *
+ * Description:
+ *
+ *
+ */
+
+#ifndef MULTIGRAIN_BLOOM_FILTER_H
+#define MULTIGRAIN_BLOOM_FILTER_H
+
+#include "mem/gems_common/Map.hh"
+#include "mem/ruby/common/Global.hh"
+#include "mem/ruby/config/RubyConfig.hh"
+#include "mem/ruby/common/Address.hh"
+#include "mem/ruby/filters/AbstractBloomFilter.hh"
+
+class MultiGrainBloomFilter : public AbstractBloomFilter {
+public:
+
+  ~MultiGrainBloomFilter();
+  MultiGrainBloomFilter(string str);
+
+  void clear();
+  void increment(const Address& addr);
+  void decrement(const Address& addr);
+  void merge(AbstractBloomFilter * other_filter);
+  void set(const Address& addr);
+  void unset(const Address& addr);
+
+  bool isSet(const Address& addr);
+  int getCount(const Address& addr);
+  int getTotalCount();
+  int getIndex(const Address& addr);
+  int readBit(const int index);
+  void writeBit(const int index, const int value);
+
+  void print(ostream& out) const;
+
+private:
+
+  int get_block_index(const Address& addr);
+  int get_page_index(const Address & addr);
+
+  // The block filter
+  Vector<int> m_filter;
+  int m_filter_size;
+  int m_filter_size_bits;
+  // The page number filter
+  Vector<int> m_page_filter;
+  int m_page_filter_size;
+  int m_page_filter_size_bits;
+
+  int m_count_bits;
+  int m_count;
+};
+
+
+#endif