| /* |
| * 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_VIRTUALCHANNEL_HH__ |
| #define __MEM_RUBY_NETWORK_GARNET_0_VIRTUALCHANNEL_HH__ |
| |
| #include <utility> |
| |
| #include "mem/ruby/network/garnet/CommonTypes.hh" |
| #include "mem/ruby/network/garnet/flitBuffer.hh" |
| |
| class VirtualChannel |
| { |
| public: |
| VirtualChannel(); |
| ~VirtualChannel() = default; |
| |
| bool need_stage(flit_stage stage, Tick time); |
| void set_idle(Tick curTime); |
| void set_active(Tick curTime); |
| void set_outvc(int outvc) { m_output_vc = outvc; } |
| inline int get_outvc() { return m_output_vc; } |
| void set_outport(int outport) { m_output_port = outport; }; |
| inline int get_outport() { return m_output_port; } |
| |
| inline Tick get_enqueue_time() { return m_enqueue_time; } |
| inline void set_enqueue_time(Tick time) { m_enqueue_time = time; } |
| inline VC_state_type get_state() { return m_vc_state.first; } |
| |
| inline bool |
| isReady(Tick curTime) |
| { |
| return inputBuffer.isReady(curTime); |
| } |
| |
| inline void |
| insertFlit(flit *t_flit) |
| { |
| inputBuffer.insert(t_flit); |
| } |
| |
| inline void |
| set_state(VC_state_type m_state, Tick curTime) |
| { |
| m_vc_state.first = m_state; |
| m_vc_state.second = curTime; |
| } |
| |
| inline flit* |
| peekTopFlit() |
| { |
| return inputBuffer.peekTopFlit(); |
| } |
| |
| inline flit* |
| getTopFlit() |
| { |
| return inputBuffer.getTopFlit(); |
| } |
| |
| uint32_t functionalWrite(Packet *pkt); |
| |
| private: |
| flitBuffer inputBuffer; |
| std::pair<VC_state_type, Tick> m_vc_state; |
| int m_output_port; |
| Tick m_enqueue_time; |
| int m_output_vc; |
| }; |
| |
| #endif // __MEM_RUBY_NETWORK_GARNET_0_VIRTUALCHANNEL_HH__ |