Merge ktlim@zizzer:/bk/newmem

into  zamp.eecs.umich.edu:/z/ktlim2/clean/newmem

--HG--
extra : convert_revision : 3d951bbeee0178de47e1bdbe704808544bfe732e

1 files changed, 129 insertions, 0 deletions

diff --git a/cpu/thread_state.hh b/cpu/thread_state.hh
new file mode 100644
index 000000000..e09cb12fd
--- /dev/null
+++ b/cpu/thread_state.hh
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2006 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.
+ */
+
+#ifndef __CPU_THREAD_STATE_HH__
+#define __CPU_THREAD_STATE_HH__
+
+#include "cpu/exec_context.hh"
+
+#if FULL_SYSTEM
+class EndQuiesceEvent;
+class FunctionProfile;
+class ProfileNode;
+namespace Kernel {
+    class Statistics;
+};
+#else
+class FunctionalMemory;
+class Process;
+#endif
+
+/**
+ *  Struct for holding general thread state that is needed across CPU
+ *  models.  This includes things such as pointers to the process,
+ *  memory, quiesce events, and certain stats.  This can be expanded
+ *  to hold more thread-specific stats within it.
+ */
+struct ThreadState {
+#if FULL_SYSTEM
+    ThreadState(int _cpuId, int _tid, FunctionalMemory *_mem)
+        : cpuId(_cpuId), tid(_tid), mem(_mem), lastActivate(0), lastSuspend(0),
+          profile(NULL), profileNode(NULL), profilePC(0), quiesceEvent(NULL)
+#else
+    ThreadState(int _cpuId, int _tid, FunctionalMemory *_mem,
+                Process *_process, short _asid)
+        : cpuId(_cpuId), tid(_tid), mem(_mem), process(_process), asid(_asid)
+#endif
+    {
+        funcExeInst = 0;
+        storeCondFailures = 0;
+    }
+
+    ExecContext::Status status;
+
+    int cpuId;
+
+    // Index of hardware thread context on the CPU that this represents.
+    int tid;
+
+    Counter numInst;
+    Stats::Scalar<> numInsts;
+    Stats::Scalar<> numMemRefs;
+
+    // number of simulated loads
+    Counter numLoad;
+    Counter startNumLoad;
+
+    FunctionalMemory *mem;	// functional storage for process address space
+
+#if FULL_SYSTEM
+    Tick lastActivate;
+    Tick lastSuspend;
+
+    FunctionProfile *profile;
+    ProfileNode *profileNode;
+    Addr profilePC;
+
+    EndQuiesceEvent *quiesceEvent;
+
+    Kernel::Statistics *kernelStats;
+#else
+    Process *process;
+
+    // Address space ID.  Note that this is used for TIMING cache
+    // simulation only; all functional memory accesses should use
+    // one of the FunctionalMemory pointers above.
+    short asid;
+
+#endif
+
+    /**
+     * Temporary storage to pass the source address from copy_load to
+     * copy_store.
+     * @todo Remove this temporary when we have a better way to do it.
+     */
+    Addr copySrcAddr;
+    /**
+     * Temp storage for the physical source address of a copy.
+     * @todo Remove this temporary when we have a better way to do it.
+     */
+    Addr copySrcPhysAddr;
+
+    /*
+     * number of executed instructions, for matching with syscall trace
+     * points in EIO files.
+     */
+    Counter funcExeInst;
+
+    //
+    // Count failed store conditionals so we can warn of apparent
+    // application deadlock situations.
+    unsigned storeCondFailures;
+};
+
+#endif // __CPU_THREAD_STATE_HH__