gpu-compute: AMD's baseline GPU model

1 files changed, 62 insertions, 0 deletions

diff --git a/src/mem/ruby/system/WeightedLRUPolicy.hh b/src/mem/ruby/system/WeightedLRUPolicy.hh
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+++ b/src/mem/ruby/system/WeightedLRUPolicy.hh
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+/*
+ * Copyright (c) 2013-2015 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * For use for simulation and test purposes only
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of the copyright holder 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 HOLDER 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.
+ *
+ * Author: Sooraj Puthoor
+ */
+
+#ifndef __MEM_RUBY_SYSTEM_WEIGHTEDLRUPOLICY_HH__
+#define __MEM_RUBY_SYSTEM_WEIGHTEDLRUPOLICY_HH__
+
+#include "mem/ruby/structures/AbstractReplacementPolicy.hh"
+#include "mem/ruby/structures/CacheMemory.hh"
+#include "params/WeightedLRUReplacementPolicy.hh"
+
+/* Simple true LRU replacement policy */
+
+class WeightedLRUPolicy : public AbstractReplacementPolicy
+{
+  public:
+    typedef WeightedLRUReplacementPolicyParams Params;
+    WeightedLRUPolicy(const Params* p);
+    ~WeightedLRUPolicy();
+
+    void touch(int64_t set, int64_t way, Tick time);
+    void touch(int64_t set, int64_t way, Tick time, int occupancy);
+    int64_t getVictim(int64_t set) const override;
+
+    bool useOccupancy() const { return true; }
+
+    CacheMemory * m_cache;
+    int **m_last_occ_ptr;
+};
+
+#endif // __MEM_RUBY_SYSTEM_WeightedLRUPolicy_HH__