ext, mem: Pull DRAMPower SHA 90d6290 and rebase

This patch syncs the DRAMPower library of gem5 to the
external github (https://github.com/ravenrd/DRAMPower).

The version pulled in is the commit:
90d6290f802c29b3de9e10233ceee22290907ce6
from 30th Oct. 2016.

This change also modifies the DRAM Ctrl interaction with the
DRAMPower, due to changes in the lib API in the above version.

Previously multiple functions were called to prepare the power
lib before calling the function that would calculate the enery. With
the new API, these functions are encompassed inside the function to
calculate the energy and therefore should now be removed from the
DRAM controller.

The other key difference is the introduction of a new function called
calcWindowEnergy which can be useful for any system that wants
to do measurements over intervals. For gem5 DRAM ctrl that means we
now need to accumulate the window energy measurements into the total
stat.

Change-Id: I3570fff2805962e166ff2a1a3217ebf2d5a197fb
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/5724
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/ext/drampower/src/MemBankWiseParams.h b/ext/drampower/src/MemBankWiseParams.h
new file mode 100644
index 000000000..0cc98fb46
--- /dev/null
+++ b/ext/drampower/src/MemBankWiseParams.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2012-2014, TU Delft
+ * Copyright (c) 2012-2014, TU Eindhoven
+ * Copyright (c) 2012-2016, TU Kaiserslautern
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * Authors: Subash Kannoth, Matthias Jung, Eder Zulian
+ *
+ */
+#ifndef MEMBANKWISEPARAMS_H
+#define MEMBANKWISEPARAMS_H
+
+#include <stdint.h>
+#include <vector>
+#include <algorithm>
+#include <numeric>
+
+namespace Data {
+  class MemBankWiseParams {
+    public:
+      // Set of possible PASR modes
+      enum pasrModes{
+        PASR_0,
+        PASR_1,
+        PASR_2,
+        PASR_3,
+        PASR_4,
+        PASR_5,
+        PASR_6,
+        PASR_7
+      };
+      // List of active banks under the specified PASR mode
+      std::vector<unsigned> activeBanks;
+      // ACT Standby power factor
+      int64_t bwPowerFactRho;
+      // Self-Refresh power factor( true : Bankwise mode)
+      int64_t bwPowerFactSigma;
+      // Bankwise or Normal mode
+      bool bwMode;
+      // Wherther PASR is enabled ( true : enabled )
+      bool flgPASR;
+      //Default constructor
+      MemBankWiseParams();
+      MemBankWiseParams(int64_t factRho, int64_t factSigma,
+                        bool hasPASR, int64_t pasrMode,
+                        bool opMode, unsigned nbrofBanks);
+
+      bool isBankActiveInPasr(const unsigned bankIdx) const;
+  };
+}
+
+#endif // MEMBANKWISEPARAMS_H