124 lines
3.9 KiB
C++
124 lines
3.9 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 __VCALLOCATOR_H__
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#define __VCALLOCATOR_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 Arbiter;
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class Buffer;
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class VCAllocator
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{
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public:
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enum VAModel
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{
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NO_MODEL = 0,
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ONE_STAGE_ARB,
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TWO_STAGE_ARB,
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VC_SELECT
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};
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public:
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~VCAllocator();
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protected:
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// for ONE_STAGE_ARB
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VCAllocator(
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uint32_t num_in_port_,
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uint32_t num_out_port_,
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uint32_t num_vclass_,
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uint32_t num_vchannel_,
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const string& arb_model_str_,
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const string& arb_ff_model_str_,
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const TechParameter* tech_param_ptr_
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);
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// for TWO_STAGE_ARB
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VCAllocator(
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uint32_t num_in_port_,
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uint32_t num_out_port_,
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uint32_t num_vclass_,
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uint32_t num_vchannel_,
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const string& local_arb_model_str_,
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const string& local_arb_ff_model_str_,
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const string& global_arb_model_str_,
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const string& global_arb_ff_model_str_,
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const TechParameter* tech_param_ptr_
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);
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// for VC_SELECT
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VCAllocator(
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uint32_t num_in_port_,
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uint32_t num_out_port_,
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uint32_t num_vclass_,
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uint32_t num_vchannel_,
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const string& vc_select_buf_model_str_,
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const OrionConfig* orion_cfg_ptr_
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);
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public:
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double get_dynamic_energy_local_vc_arb(double num_req_, bool is_max_) const;
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double get_dynamic_energy_global_vc_arb(double num_req_, bool is_max_) const;
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double get_dynamic_energy_vc_select(bool is_read_, bool is_max_) const;
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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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VAModel m_va_model;
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uint32_t m_num_in_port;
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uint32_t m_num_out_port;
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uint32_t m_num_vclass;
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uint32_t m_num_vchannel;
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Arbiter* m_local_arb_ptr;
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Arbiter* m_global_arb_ptr;
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Buffer* m_vc_select_ptr;
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public:
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static VCAllocator* create_vcallocator(
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const string& vcalloc_model_str_,
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uint32_t num_in_port_,
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uint32_t num_out_port_,
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uint32_t num_vclass_,
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uint32_t num_vchannel_,
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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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