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Diffstat (limited to 'src/mem/ruby/network/garnet2.0/InputUnit.hh')
| -rw-r--r-- | src/mem/ruby/network/garnet2.0/InputUnit.hh | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet2.0/InputUnit.hh b/src/mem/ruby/network/garnet2.0/InputUnit.hh new file mode 100644 index 000000000..26803ed86 --- /dev/null +++ b/src/mem/ruby/network/garnet2.0/InputUnit.hh @@ -0,0 +1,170 @@ +/* + * Copyright (c) 2008 Princeton University + * Copyright (c) 2016 Georgia Institute of Technology + * 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: Niket Agarwal + * Tushar Krishna + */ + + +#ifndef __MEM_RUBY_NETWORK_GARNET_INPUT_UNIT_HH__ +#define __MEM_RUBY_NETWORK_GARNET_INPUT_UNIT_HH__ + +#include <iostream> +#include <vector> + +#include "mem/ruby/common/Consumer.hh" +#include "mem/ruby/network/garnet2.0/CommonTypes.hh" +#include "mem/ruby/network/garnet2.0/CreditLink.hh" +#include "mem/ruby/network/garnet2.0/NetworkLink.hh" +#include "mem/ruby/network/garnet2.0/Router.hh" +#include "mem/ruby/network/garnet2.0/VirtualChannel.hh" +#include "mem/ruby/network/garnet2.0/flitBuffer.hh" + +class InputUnit : public Consumer +{ + public: + InputUnit(int id, PortDirection direction, Router *router); + ~InputUnit(); + + void wakeup(); + void print(std::ostream& out) const {}; + + inline PortDirection get_direction() { return m_direction; } + + inline void + set_vc_idle(int vc, Cycles curTime) + { + m_vcs[vc]->set_idle(curTime); + } + + inline void + set_vc_active(int vc, Cycles curTime) + { + m_vcs[vc]->set_active(curTime); + } + + inline void + grant_outport(int vc, int outport) + { + m_vcs[vc]->set_outport(outport); + } + + inline void + grant_outvc(int vc, int outvc) + { + m_vcs[vc]->set_outvc(outvc); + } + + inline int + get_outport(int invc) + { + return m_vcs[invc]->get_outport(); + } + + inline int + get_outvc(int invc) + { + return m_vcs[invc]->get_outvc(); + } + + inline Cycles + get_enqueue_time(int invc) + { + return m_vcs[invc]->get_enqueue_time(); + } + + void increment_credit(int in_vc, bool free_signal, Cycles curTime); + + inline flit* + peekTopFlit(int vc) + { + return m_vcs[vc]->peekTopFlit(); + } + + inline flit* + getTopFlit(int vc) + { + return m_vcs[vc]->getTopFlit(); + } + + inline bool + need_stage(int vc, flit_stage stage, Cycles time) + { + return m_vcs[vc]->need_stage(stage, time); + } + + inline bool + isReady(int invc, Cycles curTime) + { + return m_vcs[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: + int m_id; + PortDirection m_direction; + int m_num_vcs; + int m_vc_per_vnet; + + Router *m_router; + NetworkLink *m_in_link; + CreditLink *m_credit_link; + flitBuffer *creditQueue; + + // Input Virtual channels + std::vector<VirtualChannel *> m_vcs; + + // Statistical variables + std::vector<double> m_num_buffer_writes; + std::vector<double> m_num_buffer_reads; +}; + +#endif // __MEM_RUBY_NETWORK_GARNET_INPUT_UNIT_HH__ |