131 lines
3.8 KiB
C++
131 lines
3.8 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 __CROSSBAR_H__
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#define __CROSSBAR_H__
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#include "mem/ruby/network/orion/Type.hh"
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class TechParameter;
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class OrionConfig;
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class Crossbar
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{
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public:
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enum CrossbarModel
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{
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NO_MODEL = 0,
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MATRIX_CROSSBAR,
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MULTREE_CROSSBAR
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};
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enum ConnectType
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{
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TRANS_GATE,
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TRISTATE_GATE
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};
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enum TransType
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{
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N_GATE,
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NP_GATE
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};
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public:
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Crossbar(
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CrossbarModel xbar_model_,
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const string& conn_type_str_,
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const string& trans_type_str_,
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uint32_t num_in_,
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uint32_t num_out_,
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uint32_t data_width_,
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uint32_t num_in_seg_,
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uint32_t num_out_seg_,
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uint32_t degree_,
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const TechParameter* tech_param_ptr_
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);
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virtual ~Crossbar() = 0;
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public:
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double get_len_req_wire() const { return m_len_req_wire; }
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virtual double get_dynamic_energy(bool is_max_) const = 0;
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double get_static_power() const;
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void print_all() const;
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protected:
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void set_conn_type(const string& conn_type_str_);
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void set_trans_type(const string& trans_type_str_);
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double calc_in_cap();
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double calc_out_cap(uint32_t num_in_);
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double calc_int_cap();
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double calc_ctr_cap(double cap_wire_, bool prev_ctr_, bool next_ctr_);
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virtual double calc_i_static() = 0;
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protected:
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CrossbarModel m_xbar_model;
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ConnectType m_conn_type;
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TransType m_trans_type;
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uint32_t m_num_in;
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uint32_t m_num_out;
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uint32_t m_data_width;
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uint32_t m_num_in_seg;
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uint32_t m_num_out_seg;
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uint32_t m_degree;
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const TechParameter* m_tech_param_ptr;
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double m_cap_in_wire;
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double m_cap_out_wire;
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double m_cap_ctr_wire;
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double m_len_req_wire;
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double m_e_chg_in;
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double m_e_chg_out;
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double m_e_chg_ctr;
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double m_e_chg_int;
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double m_i_static;
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public:
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static Crossbar* create_crossbar(
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const string& xbar_model_str_,
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uint32_t num_in_,
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uint32_t num_out_,
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uint32_t data_width_,
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const OrionConfig* orion_cfg_ptr_
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);
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};
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#endif
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