Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
2012-10-24 19:18:57 +00:00
parent f7ff71bd46
commit b41eec3f65
3222 changed files with 658579 additions and 1 deletions
--- a/simulators/gem5/src/kern/kernel_stats.cc
+++ b/simulators/gem5/src/kern/kernel_stats.cc
@ -0,0 +1,145 @@
+/*
+ * 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.
+ *
+ * Authors: Lisa Hsu
+ *          Nathan Binkert
+ */
+
+#include <string>
+
+#include "base/trace.hh"
+#include "cpu/thread_context.hh"
+#include "kern/kernel_stats.hh"
+#if THE_ISA == ALPHA_ISA
+#include "kern/tru64/tru64_syscalls.hh"
+#endif
+#include "sim/system.hh"
+
+using namespace std;
+using namespace Stats;
+
+namespace Kernel {
+
+Statistics::Statistics(System *system)
+    : iplLast(0), iplLastTick(0)
+{
+}
+
+void
+Statistics::regStats(const string &_name)
+{
+    myname = _name;
+
+    _arm
+        .name(name() + ".inst.arm")
+        .desc("number of arm instructions executed")
+        ;
+
+    _quiesce
+        .name(name() + ".inst.quiesce")
+        .desc("number of quiesce instructions executed")
+        ;
+
+    _iplCount
+        .init(32)
+        .name(name() + ".ipl_count")
+        .desc("number of times we switched to this ipl")
+        .flags(total | pdf | nozero | nonan)
+        ;
+
+    _iplGood
+        .init(32)
+        .name(name() + ".ipl_good")
+        .desc("number of times we switched to this ipl from a different ipl")
+        .flags(total | pdf | nozero | nonan)
+        ;
+
+    _iplTicks
+        .init(32)
+        .name(name() + ".ipl_ticks")
+        .desc("number of cycles we spent at this ipl")
+        .flags(total | pdf | nozero | nonan)
+        ;
+
+    _iplUsed
+        .name(name() + ".ipl_used")
+        .desc("fraction of swpipl calls that actually changed the ipl")
+        .flags(total | nozero | nonan)
+        ;
+
+    _iplUsed = _iplGood / _iplCount;
+#if THE_ISA == ALPHA_ISA
+    _syscall
+        .init(SystemCalls<Tru64>::Number)
+        .name(name() + ".syscall")
+        .desc("number of syscalls executed")
+        .flags(total | pdf | nozero | nonan)
+        ;
+#endif
+
+    //@todo This needs to get the names of syscalls from an appropriate place.
+#if 0
+    for (int i = 0; i < SystemCalls<Tru64>::Number; ++i) {
+        const char *str = SystemCalls<Tru64>::name(i);
+        if (str) {
+            _syscall.subname(i, str);
+        }
+    }
+#endif
+}
+
+void
+Statistics::swpipl(int ipl)
+{
+    assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n");
+
+    _iplCount[ipl]++;
+
+    if (ipl == iplLast)
+        return;
+
+    _iplGood[ipl]++;
+    _iplTicks[iplLast] += curTick() - iplLastTick;
+    iplLastTick = curTick();
+    iplLast = ipl;
+}
+
+void
+Statistics::serialize(ostream &os)
+{
+    SERIALIZE_SCALAR(iplLast);
+    SERIALIZE_SCALAR(iplLastTick);
+}
+
+void
+Statistics::unserialize(Checkpoint *cp, const string &section)
+{
+    UNSERIALIZE_SCALAR(iplLast);
+    UNSERIALIZE_SCALAR(iplLastTick);
+}
+
+} // namespace Kernel