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Diffstat (limited to 'src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh')
-rw-r--r-- | src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh b/src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh new file mode 100644 index 000000000..f23c06559 --- /dev/null +++ b/src/mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh @@ -0,0 +1,95 @@ +/* + * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood + * 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. + */ + +/* + * OutputUnit_d.h + * + * Niket Agarwal, Princeton University + * + * */ + +#ifndef OUTPUT_UNIT_D_H +#define OUTPUT_UNIT_D_H + +#include "NetworkHeader.hh" +#include "Consumer.hh" +#include "flitBuffer_d.hh" +#include "OutVcState_d.hh" +#include "NetworkLink_d.hh" +#include "CreditLink_d.hh" + +class Router_d; + +class OutputUnit_d : public Consumer { +public: + OutputUnit_d(int id, Router_d *router); + ~OutputUnit_d(); + void set_out_link(NetworkLink_d *link); + void set_credit_link(CreditLink_d *credit_link); + void wakeup(); + flitBuffer_d* getOutQueue(); + void printConfig(ostream& out); + void update_vc(int vc, int in_port, int in_vc); + void print(ostream& out) const {}; + int get_credit_cnt(int vc) { return m_outvc_state[vc]->get_credit_count(); } + void decrement_credit(int out_vc); + + inline int get_outlink_id() + { + return m_out_link->get_id(); + } + + inline void set_vc_state(VC_state_type state, int vc) + { + m_outvc_state[vc]->setState(state, g_eventQueue_ptr->getTime() + 1); + } + inline bool is_vc_idle(int vc) + { + return (m_outvc_state[vc]->isInState(IDLE_, g_eventQueue_ptr->getTime()) ); + } + inline void insert_flit(flit_d *t_flit) + { + m_out_buffer->insert(t_flit); + g_eventQueue_ptr->scheduleEvent(m_out_link, 1); + } + + + +private: + int m_id; + int m_num_vcs; + Router_d *m_router; + NetworkLink_d *m_out_link; + CreditLink_d *m_credit_link; + + flitBuffer_d *m_out_buffer; // This is for the network link to consume + Vector<OutVcState_d *> m_outvc_state; // vc state of downstream router + +}; + +#endif |