Merge Ruby Stuff

1 files changed, 160 insertions, 0 deletions

diff --git a/src/mem/ruby/tester/DetermGETXGenerator.cc b/src/mem/ruby/tester/DetermGETXGenerator.cc
new file mode 100644
index 000000000..e4d8addd2
--- /dev/null
+++ b/src/mem/ruby/tester/DetermGETXGenerator.cc
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+
+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * 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.
+ */
+
+/*
+ * $Id$
+ *
+ */
+
+// This Deterministic Generator generates GETX requests for all nodes in the system
+// The GETX requests are generated one at a time in round-robin fashion 0...1...2...etc.
+
+#include "mem/ruby/tester/DetermGETXGenerator.hh"
+#include "mem/protocol/DetermGETXGeneratorStatus.hh"
+#include "mem/protocol/LockStatus.hh"
+#include "mem/ruby/system/Sequencer.hh"
+#include "mem/ruby/system/System.hh"
+#include "mem/ruby/config/RubyConfig.hh"
+#include "mem/ruby/common/SubBlock.hh"
+#include "mem/ruby/tester/DeterministicDriver.hh"
+#include "mem/protocol/Chip.hh"
+#include "mem/packet.hh"
+
+DetermGETXGenerator::DetermGETXGenerator(NodeID node, DeterministicDriver& driver) :
+  m_driver(driver)
+{
+  m_status = DetermGETXGeneratorStatus_Thinking;
+  m_last_transition = 0;
+  m_node = node;
+  m_address = Address(9999);  // initialize to null value
+  m_counter = 0;
+
+  // don't know exactly when this node needs to request so just guess randomly
+  g_eventQueue_ptr->scheduleEvent(this, 1+(random() % 200));
+}
+
+DetermGETXGenerator::~DetermGETXGenerator()
+{
+}
+
+void DetermGETXGenerator::wakeup()
+{
+  DEBUG_EXPR(TESTER_COMP, MedPrio, m_node);
+  DEBUG_EXPR(TESTER_COMP, MedPrio, m_status);
+
+  // determine if this node is next for the GETX round robin request
+  if (m_status == DetermGETXGeneratorStatus_Thinking) {
+    if (m_driver.isStoreReady(m_node)) {
+      pickAddress();
+      m_status = DetermGETXGeneratorStatus_Store_Pending;  // Store Pending
+      m_last_transition = g_eventQueue_ptr->getTime();
+      initiateStore();  // GETX
+    } else { // I'll check again later
+      g_eventQueue_ptr->scheduleEvent(this, thinkTime());
+    }
+  } else {
+    WARN_EXPR(m_status);
+    ERROR_MSG("Invalid status");
+  }
+
+}
+
+void DetermGETXGenerator::performCallback(NodeID proc, SubBlock& data)
+{
+  Address address = data.getAddress();
+  assert(proc == m_node);
+  assert(address == m_address);
+
+  DEBUG_EXPR(TESTER_COMP, LowPrio, proc);
+  DEBUG_EXPR(TESTER_COMP, LowPrio, m_status);
+  DEBUG_EXPR(TESTER_COMP, LowPrio, address);
+  DEBUG_EXPR(TESTER_COMP, LowPrio, data);
+
+  if (m_status == DetermGETXGeneratorStatus_Store_Pending) {
+    m_driver.recordStoreLatency(g_eventQueue_ptr->getTime() - m_last_transition);
+    data.writeByte(m_node);
+    m_driver.storeCompleted(m_node, data.getAddress());  // advance the store queue
+
+    m_counter++;
+    if (m_counter < g_tester_length) {
+      m_status = DetermGETXGeneratorStatus_Thinking;
+      m_last_transition = g_eventQueue_ptr->getTime();
+      g_eventQueue_ptr->scheduleEvent(this, waitTime());
+    } else {
+      m_driver.reportDone();
+      m_status = DetermGETXGeneratorStatus_Done;
+      m_last_transition = g_eventQueue_ptr->getTime();
+    }
+
+  } else {
+    WARN_EXPR(m_status);
+    ERROR_MSG("Invalid status");
+  }
+}
+
+int DetermGETXGenerator::thinkTime() const
+{
+  return g_think_time;
+}
+
+int DetermGETXGenerator::waitTime() const
+{
+  return g_wait_time;
+}
+
+void DetermGETXGenerator::pickAddress()
+{
+  assert(m_status == DetermGETXGeneratorStatus_Thinking);
+
+  m_address = m_driver.getNextStoreAddr(m_node);
+}
+
+void DetermGETXGenerator::initiateStore()
+{
+  DEBUG_MSG(TESTER_COMP, MedPrio, "initiating Store");
+
+  Addr data_addr = m_address.getAddress();
+  Request request(0, data_addr, 1, Flags<unsigned int>(), 3, 0, 0);
+  MemCmd::Command command;
+  command = MemCmd::WriteReq;
+
+  Packet pkt(&request, command, 0); // TODO -- make dest a real NodeID
+
+  sequencer()->makeRequest(&pkt);
+}
+
+Sequencer* DetermGETXGenerator::sequencer() const
+{
+  return g_system_ptr->getChip(m_node/RubyConfig::numberOfProcsPerChip())->getSequencer(m_node%RubyConfig::numberOfProcsPerChip());
+}
+
+void DetermGETXGenerator::print(ostream& out) const
+{
+}
+