| /* |
| * Copyright (c) 2009 Princeton University |
| * Copyright (c) 2009 The Regents of the University of California |
| * 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: Hangsheng Wang (Orion 1.0, Princeton) |
| * Xinping Zhu (Orion 1.0, Princeton) |
| * Xuning Chen (Orion 1.0, Princeton) |
| * Bin Li (Orion 2.0, Princeton) |
| * Kambiz Samadi (Orion 2.0, UC San Diego) |
| */ |
| |
| #ifndef __CROSSBAR_H__ |
| #define __CROSSBAR_H__ |
| |
| #include "mem/ruby/network/orion/Type.hh" |
| |
| class TechParameter; |
| class OrionConfig; |
| |
| class Crossbar |
| { |
| public: |
| enum CrossbarModel |
| { |
| NO_MODEL = 0, |
| MATRIX_CROSSBAR, |
| MULTREE_CROSSBAR |
| }; |
| enum ConnectType |
| { |
| TRANS_GATE, |
| TRISTATE_GATE |
| }; |
| enum TransType |
| { |
| N_GATE, |
| NP_GATE |
| }; |
| |
| public: |
| Crossbar( |
| CrossbarModel xbar_model_, |
| const string& conn_type_str_, |
| const string& trans_type_str_, |
| uint32_t num_in_, |
| uint32_t num_out_, |
| uint32_t data_width_, |
| uint32_t num_in_seg_, |
| uint32_t num_out_seg_, |
| uint32_t degree_, |
| const TechParameter* tech_param_ptr_ |
| ); |
| virtual ~Crossbar() = 0; |
| |
| public: |
| double get_len_req_wire() const { return m_len_req_wire; } |
| |
| virtual double get_dynamic_energy(bool is_max_) const = 0; |
| double get_static_power() const; |
| |
| void print_all() const; |
| |
| protected: |
| void set_conn_type(const string& conn_type_str_); |
| void set_trans_type(const string& trans_type_str_); |
| double calc_in_cap(); |
| double calc_out_cap(uint32_t num_in_); |
| double calc_int_cap(); |
| double calc_ctr_cap(double cap_wire_, bool prev_ctr_, bool next_ctr_); |
| virtual double calc_i_static() = 0; |
| |
| protected: |
| CrossbarModel m_xbar_model; |
| ConnectType m_conn_type; |
| TransType m_trans_type; |
| uint32_t m_num_in; |
| uint32_t m_num_out; |
| uint32_t m_data_width; |
| uint32_t m_num_in_seg; |
| uint32_t m_num_out_seg; |
| uint32_t m_degree; |
| const TechParameter* m_tech_param_ptr; |
| |
| double m_cap_in_wire; |
| double m_cap_out_wire; |
| double m_cap_ctr_wire; |
| double m_len_req_wire; |
| |
| double m_e_chg_in; |
| double m_e_chg_out; |
| double m_e_chg_ctr; |
| double m_e_chg_int; |
| |
| double m_i_static; |
| |
| public: |
| static Crossbar* create_crossbar( |
| const string& xbar_model_str_, |
| uint32_t num_in_, |
| uint32_t num_out_, |
| uint32_t data_width_, |
| const OrionConfig* orion_cfg_ptr_ |
| ); |
| }; |
| |
| #endif |