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Diffstat (limited to 'src/mem/ruby/network/garnet-fixed-pipeline/VCallocator_d.hh')
-rw-r--r-- | src/mem/ruby/network/garnet-fixed-pipeline/VCallocator_d.hh | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet-fixed-pipeline/VCallocator_d.hh b/src/mem/ruby/network/garnet-fixed-pipeline/VCallocator_d.hh new file mode 100644 index 000000000..fc1bf1340 --- /dev/null +++ b/src/mem/ruby/network/garnet-fixed-pipeline/VCallocator_d.hh @@ -0,0 +1,86 @@ +/* + * 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. + */ + +/* + * VCallocator_d.h + * + * Niket Agarwal, Princeton University + * + * */ + +#ifndef VC_ALLOCATOR_D_H +#define VC_ALLOCATOR_D_H + +#include "NetworkHeader.hh" +#include "Consumer.hh" + +class Router_d; +class InputUnit_d; +class OutputUnit_d; + +class VCallocator_d : public Consumer { +public: + VCallocator_d(Router_d *router); + void init(); + void wakeup(); + void check_for_wakeup(); + void clear_request_vector(); + int get_vnet(int invc); + void print(ostream& out) const {}; + void arbitrate_invcs(); + void arbitrate_outvcs(); + bool is_invc_candidate(int inport_iter, int invc_iter); + void select_outvc(int inport_iter, int invc_iter); + inline double get_local_arbit_count() + { + return m_local_arbiter_activity; + } + inline double get_global_arbit_count() + { + return m_global_arbiter_activity; + } + +private: + int m_num_vcs, m_vc_per_vnet; + int m_num_inports; + int m_num_outports; + + double m_local_arbiter_activity, m_global_arbiter_activity; + + Router_d *m_router; + Vector<Vector <int > > m_round_robin_invc; // First stage of arbitration where all vcs select an output vc to content for + Vector<Vector <pair<int, int> > > m_round_robin_outvc; // Arbiter for every output vc + Vector<Vector<Vector<Vector<bool > > > > m_outvc_req; // [outport][outvc][inpotr][invc]. set true in the first phase of allocation + Vector<Vector<bool > > m_outvc_is_req; + + Vector<InputUnit_d *> m_input_unit ; + Vector<OutputUnit_d *> m_output_unit ; + +}; + +#endif |