| /* |
| * Copyright (c) 2020 Inria |
| * Copyright (c) 2016 Georgia Institute of Technology |
| * Copyright (c) 2008 Princeton University |
| * 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. |
| */ |
| |
| |
| #ifndef __MEM_RUBY_NETWORK_GARNET_0_INPUTUNIT_HH__ |
| #define __MEM_RUBY_NETWORK_GARNET_0_INPUTUNIT_HH__ |
| |
| #include <iostream> |
| #include <vector> |
| |
| #include "mem/ruby/common/Consumer.hh" |
| #include "mem/ruby/network/garnet/CommonTypes.hh" |
| #include "mem/ruby/network/garnet/CreditLink.hh" |
| #include "mem/ruby/network/garnet/NetworkLink.hh" |
| #include "mem/ruby/network/garnet/Router.hh" |
| #include "mem/ruby/network/garnet/VirtualChannel.hh" |
| #include "mem/ruby/network/garnet/flitBuffer.hh" |
| |
| class InputUnit : public Consumer |
| { |
| public: |
| InputUnit(int id, PortDirection direction, Router *router); |
| ~InputUnit() = default; |
| |
| void wakeup(); |
| void print(std::ostream& out) const {}; |
| |
| inline PortDirection get_direction() { return m_direction; } |
| |
| inline void |
| set_vc_idle(int vc, Tick curTime) |
| { |
| virtualChannels[vc].set_idle(curTime); |
| } |
| |
| inline void |
| set_vc_active(int vc, Tick curTime) |
| { |
| virtualChannels[vc].set_active(curTime); |
| } |
| |
| inline void |
| grant_outport(int vc, int outport) |
| { |
| virtualChannels[vc].set_outport(outport); |
| } |
| |
| inline void |
| grant_outvc(int vc, int outvc) |
| { |
| virtualChannels[vc].set_outvc(outvc); |
| } |
| |
| inline int |
| get_outport(int invc) |
| { |
| return virtualChannels[invc].get_outport(); |
| } |
| |
| inline int |
| get_outvc(int invc) |
| { |
| return virtualChannels[invc].get_outvc(); |
| } |
| |
| inline Tick |
| get_enqueue_time(int invc) |
| { |
| return virtualChannels[invc].get_enqueue_time(); |
| } |
| |
| void increment_credit(int in_vc, bool free_signal, Tick curTime); |
| |
| inline flit* |
| peekTopFlit(int vc) |
| { |
| return virtualChannels[vc].peekTopFlit(); |
| } |
| |
| inline flit* |
| getTopFlit(int vc) |
| { |
| return virtualChannels[vc].getTopFlit(); |
| } |
| |
| inline bool |
| need_stage(int vc, flit_stage stage, Tick time) |
| { |
| return virtualChannels[vc].need_stage(stage, time); |
| } |
| |
| inline bool |
| isReady(int invc, Tick curTime) |
| { |
| return virtualChannels[invc].isReady(curTime); |
| } |
| |
| flitBuffer* getCreditQueue() { return &creditQueue; } |
| |
| inline void |
| set_in_link(NetworkLink *link) |
| { |
| m_in_link = link; |
| } |
| |
| inline int get_inlink_id() { return m_in_link->get_id(); } |
| |
| inline void |
| set_credit_link(CreditLink *credit_link) |
| { |
| m_credit_link = credit_link; |
| } |
| |
| double get_buf_read_activity(unsigned int vnet) const |
| { return m_num_buffer_reads[vnet]; } |
| double get_buf_write_activity(unsigned int vnet) const |
| { return m_num_buffer_writes[vnet]; } |
| |
| uint32_t functionalWrite(Packet *pkt); |
| void resetStats(); |
| |
| private: |
| Router *m_router; |
| int m_id; |
| PortDirection m_direction; |
| int m_vc_per_vnet; |
| NetworkLink *m_in_link; |
| CreditLink *m_credit_link; |
| flitBuffer creditQueue; |
| |
| // Input Virtual channels |
| std::vector<VirtualChannel> virtualChannels; |
| |
| // Statistical variables |
| std::vector<double> m_num_buffer_writes; |
| std::vector<double> m_num_buffer_reads; |
| }; |
| |
| #endif // __MEM_RUBY_NETWORK_GARNET_0_INPUTUNIT_HH__ |