88 lines
3 KiB
C++
88 lines
3 KiB
C++
/*
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* Copyright (c) 2009 Princeton University
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* Copyright (c) 2009 The Regents of the University of California
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Hangsheng Wang (Orion 1.0, Princeton)
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* Xinping Zhu (Orion 1.0, Princeton)
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* Xuning Chen (Orion 1.0, Princeton)
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* Bin Li (Orion 2.0, Princeton)
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* Kambiz Samadi (Orion 2.0, UC San Diego)
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*/
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#ifndef __ARBITER_H__
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#define __ARBITER_H__
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#include "mem/ruby/network/orion/Type.hh"
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class TechParameter;
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class FlipFlop;
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class Arbiter
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{
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public:
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enum ArbiterModel
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{
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NO_MODEL = 0,
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RR_ARBITER,
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MATRIX_ARBITER
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};
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public:
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Arbiter(const ArbiterModel arb_model_,
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const uint32_t req_width_,
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const double len_in_wire_,
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const TechParameter* tech_param_ptr_);
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virtual ~Arbiter() = 0;
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public:
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virtual double calc_dynamic_energy(double num_req_, bool is_max_) const = 0;
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double get_static_power() const;
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protected:
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ArbiterModel m_arb_model;
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uint32_t m_req_width;
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double m_len_in_wire;
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const TechParameter* m_tech_param_ptr;
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FlipFlop* m_ff_ptr;
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double m_e_chg_req;
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double m_e_chg_grant;
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double m_i_static;
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public:
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static Arbiter* create_arbiter(const string& arb_model_str_,
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const string& ff_model_str_,
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uint32_t req_width_,
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double len_in_wire_,
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const TechParameter* tech_param_ptr_);
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};
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#endif
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