1 files changed, 94 insertions, 0 deletions
diff --git a/src/kern/system_events.cc b/src/kern/system_events.cc
new file mode 100644
index 000000000..f3b1bf91d
--- /dev/null
+++ b/src/kern/system_events.cc
@@ -0,0 +1,94 @@
+/*
+ * 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.
+ */
+
+#include "cpu/base.hh"
+#include "cpu/cpu_exec_context.hh"
+#include "kern/kernel_stats.hh"
+#include "kern/system_events.hh"
+#include "sim/system.hh"
+
+using namespace TheISA;
+
+void
+SkipFuncEvent::process(ExecContext *xc)
+{
+    Addr newpc = xc->readIntReg(ReturnAddressReg);
+
+    DPRINTF(PCEvent, "skipping %s: pc=%x, newpc=%x\n", description,
+            xc->readPC(), newpc);
+
+    xc->setPC(newpc);
+    xc->setNextPC(xc->readPC() + sizeof(TheISA::MachInst));
+/*
+    BranchPred *bp = xc->getCpuPtr()->getBranchPred();
+    if (bp != NULL) {
+        bp->popRAS(xc->getThreadNum());
+    }
+*/
+}
+
+
+FnEvent::FnEvent(PCEventQueue *q, const std::string &desc, Addr addr,
+                 Stats::MainBin *bin)
+    : PCEvent(q, desc, addr), _name(desc), mybin(bin)
+{
+}
+
+void
+FnEvent::process(ExecContext *xc)
+{
+    if (xc->misspeculating())
+        return;
+
+    xc->getSystemPtr()->kernelBinning->call(xc, mybin);
+}
+
+void
+IdleStartEvent::process(ExecContext *xc)
+{
+    if (xc->getKernelStats())
+        xc->getKernelStats()->setIdleProcess(
+            xc->readMiscReg(AlphaISA::IPR_PALtemp23), xc);
+    remove();
+}
+
+void
+InterruptStartEvent::process(ExecContext *xc)
+{
+    if (xc->getKernelStats())
+        xc->getKernelStats()->mode(Kernel::interrupt, xc);
+}
+
+void
+InterruptEndEvent::process(ExecContext *xc)
+{
+    // We go back to kernel, if we are user, inside the rti
+    // pal code we will get switched to user because of the ICM write
+    if (xc->getKernelStats())
+        xc->getKernelStats()->mode(Kernel::kernel, xc);
+}