ruby: garnet2.0

Revamped version of garnet with more optimized single-cycle routers,
more configurability, and cleaner code.

1 files changed, 122 insertions, 0 deletions

diff --git a/src/mem/ruby/network/garnet2.0/flit.hh b/src/mem/ruby/network/garnet2.0/flit.hh
new file mode 100644
index 000000000..3e30ec98c
--- /dev/null
+++ b/src/mem/ruby/network/garnet2.0/flit.hh
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2008 Princeton University
+ * Copyright (c) 2016 Georgia Institute of Technology
+ * 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: Niket Agarwal
+ *          Tushar Krishna
+ */
+
+
+#ifndef __MEM_RUBY_NETWORK_GARNET_FLIT_HH__
+#define __MEM_RUBY_NETWORK_GARNET_FLIT_HH__
+
+#include <cassert>
+#include <iostream>
+
+#include "base/types.hh"
+#include "mem/ruby/network/garnet2.0/CommonTypes.hh"
+#include "mem/ruby/slicc_interface/Message.hh"
+
+class flit
+{
+  public:
+    flit() {}
+    flit(int id, int vc, int vnet, RouteInfo route, int size,
+         MsgPtr msg_ptr, Cycles curTime);
+
+    int get_outport() {return m_outport; }
+    int get_size() { return m_size; }
+    Cycles get_enqueue_time() { return m_enqueue_time; }
+    int get_id() { return m_id; }
+    Cycles get_time() { return m_time; }
+    int get_vnet() { return m_vnet; }
+    int get_vc() { return m_vc; }
+    RouteInfo get_route() { return m_route; }
+    MsgPtr& get_msg_ptr() { return m_msg_ptr; }
+    flit_type get_type() { return m_type; }
+    std::pair<flit_stage, Cycles> get_stage() { return m_stage; }
+    Cycles get_src_delay() { return src_delay; }
+
+    void set_outport(int port) { m_outport = port; }
+    void set_time(Cycles time) { m_time = time; }
+    void set_vc(int vc) { m_vc = vc; }
+    void set_route(RouteInfo route) { m_route = route; }
+    void set_src_delay(Cycles delay) { src_delay = delay; }
+
+    void increment_hops() { m_route.hops_traversed++; }
+    void print(std::ostream& out) const;
+
+    bool
+    is_stage(flit_stage stage, Cycles time)
+    {
+        return (stage == m_stage.first &&
+                time >= m_stage.second);
+    }
+
+    void
+    advance_stage(flit_stage t_stage, Cycles newTime)
+    {
+        m_stage.first = t_stage;
+        m_stage.second = newTime;
+    }
+
+    static bool
+    greater(flit* n1, flit* n2)
+    {
+        if (n1->get_time() == n2->get_time()) {
+            //assert(n1->flit_id != n2->flit_id);
+            return (n1->get_id() > n2->get_id());
+        } else {
+            return (n1->get_time() > n2->get_time());
+        }
+    }
+
+    bool functionalWrite(Packet *pkt);
+
+  protected:
+    int m_id;
+    int m_vnet;
+    int m_vc;
+    RouteInfo m_route;
+    int m_size;
+    Cycles m_enqueue_time, m_time;
+    flit_type m_type;
+    MsgPtr m_msg_ptr;
+    int m_outport;
+    Cycles src_delay;
+    std::pair<flit_stage, Cycles> m_stage;
+};
+
+inline std::ostream&
+operator<<(std::ostream& out, const flit& obj)
+{
+    obj.print(out);
+    out << std::flush;
+    return out;
+}
+
+#endif // __MEM_RUBY_NETWORK_GARNET_FLIT_HH__