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/*
* 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 __VCALLOCATOR_H__
#define __VCALLOCATOR_H__
#include "mem/ruby/network/orion/Type.hh"
class TechParameter;
class OrionConfig;
class Arbiter;
class Buffer;
class VCAllocator
{
public:
enum VAModel
{
NO_MODEL = 0,
ONE_STAGE_ARB,
TWO_STAGE_ARB,
VC_SELECT
};
public:
~VCAllocator();
protected:
// for ONE_STAGE_ARB
VCAllocator(
uint32_t num_in_port_,
uint32_t num_out_port_,
uint32_t num_vclass_,
uint32_t num_vchannel_,
const string& arb_model_str_,
const string& arb_ff_model_str_,
const TechParameter* tech_param_ptr_
);
// for TWO_STAGE_ARB
VCAllocator(
uint32_t num_in_port_,
uint32_t num_out_port_,
uint32_t num_vclass_,
uint32_t num_vchannel_,
const string& local_arb_model_str_,
const string& local_arb_ff_model_str_,
const string& global_arb_model_str_,
const string& global_arb_ff_model_str_,
const TechParameter* tech_param_ptr_
);
// for VC_SELECT
VCAllocator(
uint32_t num_in_port_,
uint32_t num_out_port_,
uint32_t num_vclass_,
uint32_t num_vchannel_,
const string& vc_select_buf_model_str_,
const OrionConfig* orion_cfg_ptr_
);
public:
double get_dynamic_energy_local_vc_arb(double num_req_, bool is_max_) const;
double get_dynamic_energy_global_vc_arb(double num_req_, bool is_max_) const;
double get_dynamic_energy_vc_select(bool is_read_, bool is_max_) const;
double get_static_power() const;
void print_all() const;
protected:
VAModel m_va_model;
uint32_t m_num_in_port;
uint32_t m_num_out_port;
uint32_t m_num_vclass;
uint32_t m_num_vchannel;
Arbiter* m_local_arb_ptr;
Arbiter* m_global_arb_ptr;
Buffer* m_vc_select_ptr;
public:
static VCAllocator* create_vcallocator(
const string& vcalloc_model_str_,
uint32_t num_in_port_,
uint32_t num_out_port_,
uint32_t num_vclass_,
uint32_t num_vchannel_,
const OrionConfig* orion_cfg_ptr_
);
};
#endif
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