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acastong |
//final_reordering_l3.cpp
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is HyperTransport Tunnel IP Core.
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*
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* The Initial Developer of the Original Code is
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* Ecole Polytechnique de Montreal.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Ami Castonguay <acastong@grm.polymtl.ca>
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* Laurent Aubray
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*
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* Alternatively, the contents of this file may be used under the terms
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* of the Polytechnique HyperTransport Tunnel IP Core Source Code License
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* (the "PHTICSCL License", see the file PHTICSCL.txt), in which case the
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* provisions of PHTICSCL License are applicable instead of those
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* above. If you wish to allow use of your version of this file only
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* under the terms of the PHTICSCL License and not to allow others to use
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* your version of this file under the MPL, indicate your decision by
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* deleting the provisions above and replace them with the notice and
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* other provisions required by the PHTICSCL License. If you do not delete
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* the provisions above, a recipient may use your version of this file
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* under either the MPL or the PHTICSCL License."
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*
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* ***** END LICENSE BLOCK ***** */
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#include "final_reordering_l3.h"
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#ifdef SYSTEMC_SIM
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using namespace std;
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#endif
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/// Main constructor.
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final_reordering_l3::final_reordering_l3(sc_module_name name) : sc_module(name)
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{
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SC_METHOD(clocked_process);
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sensitive_pos << clk;
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sensitive_neg << resetx;
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SC_METHOD(output_request);
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sensitive << posted_packet_buffer_accepted_loaded[0]
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<< posted_packet_buffer_accepted_loaded[1]
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<< nposted_packet_buffer_accepted_loaded[0]
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<< nposted_packet_buffer_accepted_loaded[1]
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<< response_packet_buffer_accepted_loaded[0]
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<< response_packet_buffer_accepted_loaded[1]
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<< posted_packet_buffer_rejected_loaded[0]
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<< posted_packet_buffer_rejected_loaded[1]
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<< nposted_packet_buffer_rejected_loaded[0]
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<< nposted_packet_buffer_rejected_loaded[1]
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<< response_packet_buffer_rejected_loaded[0]
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<< response_packet_buffer_rejected_loaded[1]
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<< fetched_packet_vc[0] << fetched_packet_vc[1]
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<< fetched_packet_available[0]
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<< fetched_packet_available[1];
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SC_METHOD(find_next_packet_buf_workaround);
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sensitive << posted_packet_buffer_accepted_loaded[0]
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<< posted_packet_buffer_accepted_loaded[1]
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<< nposted_packet_buffer_accepted_loaded[0]
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<< nposted_packet_buffer_accepted_loaded[1]
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<< response_packet_buffer_accepted_loaded[0]
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<< response_packet_buffer_accepted_loaded[1]
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<< posted_packet_buffer_rejected_loaded[0]
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<< posted_packet_buffer_rejected_loaded[1]
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<< nposted_packet_buffer_rejected_loaded[0]
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<< nposted_packet_buffer_rejected_loaded[1]
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<< response_packet_buffer_rejected_loaded[0]
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<< response_packet_buffer_rejected_loaded[1]
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<< posted_packet_buffer_accepted[0]
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<< posted_packet_buffer_accepted[1]
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<< nposted_packet_buffer_accepted[0]
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<< nposted_packet_buffer_accepted[1]
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<< response_packet_buffer_accepted[0]
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<< response_packet_buffer_accepted[1]
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<< posted_packet_buffer_rejected[0]
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<< posted_packet_buffer_rejected[1]
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<< nposted_packet_buffer_rejected[0]
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<< nposted_packet_buffer_rejected[1]
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<< response_packet_buffer_rejected[0]
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<< response_packet_buffer_rejected[1]
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<< posted_packet_wait_count_accepted[0]
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<< posted_packet_wait_count_accepted[1]
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<< nposted_packet_wait_count_accepted[0]
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<< nposted_packet_wait_count_accepted[1]
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<< response_packet_wait_count_accepted[0]
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<< response_packet_wait_count_accepted[1]
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<< posted_packet_wait_count_rejected[0]
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<< posted_packet_wait_count_rejected[1]
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<< nposted_packet_wait_count_rejected[0]
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<< nposted_packet_wait_count_rejected[1]
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<< response_packet_wait_count_rejected[0]
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<< response_packet_wait_count_rejected[1]
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;
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}
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void final_reordering_l3::doFinalReorderingFWD(void){
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//syn_ControlPacketComplete rc_packet;
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sc_uint<LOG2_NB_OF_BUFFERS+1> response_refid;
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//syn_ControlPacketComplete pc_packet;
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sc_uint<LOG2_NB_OF_BUFFERS+1> posted_nposted_refid;
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sc_uint<LOG2_NB_OF_BUFFERS+1> posted_response_refid;
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//syn_ControlPacketComplete npc_packet;
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sc_uint<LOG2_NB_OF_BUFFERS+1> nposted_refid;
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// Select the response packet
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bool rc_packet_available = response_packet_buffer_rejected_loaded[0].read() ||
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response_packet_buffer_rejected_loaded[1].read();
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//rc_packet.packet.range(63,32) = 0;
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//rc_packet.error64BitExtension = false;
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//rc_packet.isPartOfChain = false;
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if(response_packet_buffer_rejected_loaded[0].read()){
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//rc_packet.packet.range(31,0) = response_packet_buffer_rejected[0].read().packet;
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//rc_packet.data_address = response_packet_buffer_rejected[0].read().data_address;
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response_refid = response_packet_buffer_rejected_refid[0].read();
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}
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else{
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//rc_packet.packet.range(31,0) = response_packet_buffer_rejected[1].read().packet;
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//rc_packet.data_address = response_packet_buffer_rejected[1].read().data_address;
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response_refid = response_packet_buffer_rejected_refid[1].read();
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}
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// Select the posted packet
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bool pc_packet_available = posted_packet_buffer_rejected_loaded[0].read() ||
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posted_packet_buffer_rejected_loaded[1].read();
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if(posted_packet_buffer_rejected_loaded[0].read()){
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//pc_packet = posted_packet_buffer_rejected[0].read();
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posted_response_refid = posted_packet_buffer_rejected_response_refid[0].read();
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posted_nposted_refid = posted_packet_buffer_rejected_nposted_refid[0].read();
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}
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else{
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//pc_packet = posted_packet_buffer_rejected[1].read();
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posted_response_refid = posted_packet_buffer_rejected_response_refid[1].read();
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posted_nposted_refid = posted_packet_buffer_rejected_nposted_refid[1].read();
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}
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// Select the non-posted packet
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bool npc_packet_available = nposted_packet_buffer_rejected_loaded[0].read() ||
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nposted_packet_buffer_rejected_loaded[1].read();
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if(nposted_packet_buffer_rejected_loaded[0].read()){
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//npc_packet = nposted_packet_buffer_rejected[0].read();
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nposted_refid = nposted_packet_buffer_rejected_refid[0].read();
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}
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else{
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//npc_packet = nposted_packet_buffer_rejected[1].read();
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nposted_refid = nposted_packet_buffer_rejected_refid[1].read();
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}
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////////////////////////////////////////////////////////
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// Compare refids to know the order the packet arrived
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// relatively to the posted channel
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////////////////////////////////////////////////////////
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sc_uint<LOG2_NB_OF_BUFFERS+1> nposted_refid_compared =
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nposted_refid - posted_nposted_refid;
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bool nposted_ordering_ok = !pc_packet_available || nposted_refid_compared[LOG2_NB_OF_BUFFERS];
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sc_uint<LOG2_NB_OF_BUFFERS+1> response_refid_compared =
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response_refid - posted_response_refid;
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bool response_ordering_ok = !pc_packet_available || response_refid_compared[LOG2_NB_OF_BUFFERS];
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sc_bv<64> rc_packet_bits = rc_packet_rejected.read().packet;
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sc_bv<64> pc_packet_bits = pc_packet_rejected.read().packet;
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sc_bv<64> npc_packet_bits = npc_packet_rejected.read().packet;
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PacketCommand rc_packet_cmd = getPacketCommand(rc_packet_bits.range(5,0));
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PacketCommand pc_packet_cmd = getPacketCommand(pc_packet_bits.range(5,0));
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PacketCommand npc_packet_cmd = getPacketCommand(npc_packet_bits.range(5,0));
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bool rchasDataAssociated = hasDataAssociated(rc_packet_cmd);
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//Check if there is enough buffers in the next node to send the packet
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//and check that all data has arrived if it has an associated data packet
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bool rcFreeWithData = (
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//Check if it has data and there is room in the next buffer
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//for a control and data packet, if it is a packet with data
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(rchasDataAssociated
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&& (sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_RC_FREE_DATA]) &&
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(sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_RC_FREE])) ||
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//If there is no data associated, only check if there is a
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//control buffer available
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(!rchasDataAssociated
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&& (sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_RC_FREE]) ))
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//If there is data associated, make sure that the data has finished
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//coming in
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&&!(rc_packet_rejected.read().data_address == cd_data_pending_addr_ro &&
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rchasDataAssociated &&
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cd_data_pending_ro.read());
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bool pchasDataAssociated = hasDataAssociated(pc_packet_cmd);
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//Check if there is enough buffers in the next node to send the packet
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//and check that all data has arrived if it has an associated data packet
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bool pcFreeWithData = (
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//Check if it has data and there is room in the next buffer
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//for a control and data packet, if it is a packet with data
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(pchasDataAssociated
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&& (sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_PC_FREE_DATA]) &&
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(sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_PC_FREE])) ||
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//If there is no data associated, only check if there is a
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//control buffer available
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(!pchasDataAssociated
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&& (sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_PC_FREE])))
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//If there is data associated, make sure that the data has finished
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//coming in
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&&!(pc_packet_rejected.read().data_address == cd_data_pending_addr_ro &&
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pchasDataAssociated &&
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cd_data_pending_ro.read());
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bool npchasDataAssociated = hasDataAssociated(npc_packet_cmd);
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//Check if there is enough buffers in the next node to send the packet
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//and check that all data has arrived if it has an associated data packet
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bool npcFreeWithData = (
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//Check if it has data and there is room in the next buffer
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//for a control and data packet, if it is a packet with data
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(npchasDataAssociated
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&& (sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_NPC_FREE_DATA]) &&
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(sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_NPC_FREE])) ||
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//If there is no data associated, only check if there is a
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//control buffer available
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(!npchasDataAssociated
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&& (sc_bit)(fwd_next_node_buffer_status_ro.read()[BIT_NPC_FREE])) )
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//If there is data associated, make sure that the data has finished
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//coming in
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&&!(npc_packet_rejected.read().data_address == cd_data_pending_addr_ro &&
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npchasDataAssociated &&
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cd_data_pending_ro.read());
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//Most important packet is Response with passPW, if there is room
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//in the next device
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/**
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This first condition makes it so a packet is only issued once every
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two cycles. Because most packets are 64 bits, this should not cause
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too much slowdown. This is done because to output a packet every cycle
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would require an extra buffer, at least for the posted channel.
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*/
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if(rejected_output_loaded.read() && ack[FWD_DEST].read() || csr_sync.read()){
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out_packet_fwd = out_packet_fwd.read();
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out_packet_vc_fwd = out_packet_vc_fwd.read();
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rejected_vc_decoded = 0;
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out_packet_available_fwd = false;
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rejected_output_loaded = false;
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}
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//Most important packet is Response with passPW, if there is room
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//in the next device
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else if(rc_packet_available &&
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getPassPW(rc_packet_bits) &&
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rcFreeWithData &&
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(! (pcFreeWithData && pc_packet_rejected_maxwait_reached.read() ||
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npcFreeWithData && npc_packet_rejected_maxwait_reached.read())
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|| rc_packet_rejected_maxwait_reached.read()))
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{
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out_packet_fwd = rc_packet_rejected.read();
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out_packet_vc_fwd = VC_RESPONSE;
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rejected_vc_decoded = "100";
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out_packet_available_fwd = true;
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rejected_output_loaded = true;
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}
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//After that, it's the posted channel, whatever passPW is, also if
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//there is room in the next device
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else if(pc_packet_available &&
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pcFreeWithData &&
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(! (rcFreeWithData && rc_packet_rejected_maxwait_reached.read() ||
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npcFreeWithData && npc_packet_rejected_maxwait_reached.read())
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|| pc_packet_rejected_maxwait_reached.read()))
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{
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out_packet_fwd = pc_packet_rejected.read();
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out_packet_vc_fwd = VC_POSTED;
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rejected_vc_decoded = "001";
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|
|
out_packet_available_fwd = true;
|
| 293 |
|
|
rejected_output_loaded = true;
|
| 294 |
|
|
}
|
| 295 |
|
|
//Next, we go back to the response channel if there is room in the
|
| 296 |
|
|
//next device. but also only if there are no posted request that arrived
|
| 297 |
|
|
//ahead of that response packet (ordering restriction)
|
| 298 |
|
|
else if(rc_packet_available &&
|
| 299 |
|
|
rcFreeWithData && response_ordering_ok &&
|
| 300 |
|
|
(! (npcFreeWithData && npc_packet_rejected_maxwait_reached.read())
|
| 301 |
|
|
|| rc_packet_rejected_maxwait_reached.read()))
|
| 302 |
|
|
{
|
| 303 |
|
|
out_packet_fwd = rc_packet_rejected.read();
|
| 304 |
|
|
out_packet_vc_fwd = VC_RESPONSE;
|
| 305 |
|
|
rejected_vc_decoded = "100";
|
| 306 |
|
|
out_packet_available_fwd = true;
|
| 307 |
|
|
rejected_output_loaded = true;
|
| 308 |
|
|
}
|
| 309 |
|
|
//After that, we fo with the NPC with passPW or no posted packet blocking
|
| 310 |
|
|
//the transmission
|
| 311 |
|
|
else if(npc_packet_available &&
|
| 312 |
|
|
(getPassPW(npc_packet_bits) ||
|
| 313 |
|
|
nposted_ordering_ok) &&
|
| 314 |
|
|
npcFreeWithData)
|
| 315 |
|
|
{
|
| 316 |
|
|
out_packet_fwd = npc_packet_rejected.read();
|
| 317 |
|
|
out_packet_vc_fwd = VC_NON_POSTED;
|
| 318 |
|
|
rejected_vc_decoded = "010";
|
| 319 |
|
|
out_packet_available_fwd = true;
|
| 320 |
|
|
rejected_output_loaded = true;
|
| 321 |
|
|
}
|
| 322 |
|
|
//If there is nothing, output zeros
|
| 323 |
|
|
else{
|
| 324 |
|
|
out_packet_fwd = out_packet_fwd.read();
|
| 325 |
|
|
out_packet_vc_fwd = out_packet_vc_fwd.read();
|
| 326 |
|
|
rejected_vc_decoded = 0;
|
| 327 |
|
|
out_packet_available_fwd = false;
|
| 328 |
|
|
rejected_output_loaded = false;
|
| 329 |
|
|
}
|
| 330 |
|
|
}
|
| 331 |
|
|
|
| 332 |
|
|
|
| 333 |
|
|
void final_reordering_l3::doFinalReorderingAccepted(){
|
| 334 |
|
|
|
| 335 |
|
|
//syn_ControlPacketComplete rc_packet;
|
| 336 |
|
|
sc_uint<LOG2_NB_OF_BUFFERS+1> response_refid;
|
| 337 |
|
|
|
| 338 |
|
|
//syn_ControlPacketComplete pc_packet;
|
| 339 |
|
|
sc_uint<LOG2_NB_OF_BUFFERS+1> posted_nposted_refid;
|
| 340 |
|
|
sc_uint<LOG2_NB_OF_BUFFERS+1> posted_response_refid;
|
| 341 |
|
|
|
| 342 |
|
|
//syn_ControlPacketComplete npc_packet;
|
| 343 |
|
|
sc_uint<LOG2_NB_OF_BUFFERS+1> nposted_refid;
|
| 344 |
|
|
|
| 345 |
|
|
// Select the response packet
|
| 346 |
|
|
bool rc_packet_available = response_packet_buffer_accepted_loaded[0].read() ||
|
| 347 |
|
|
response_packet_buffer_accepted_loaded[1].read();
|
| 348 |
|
|
//rc_packet.packet.range(63,32) = 0;
|
| 349 |
|
|
//rc_packet.error64BitExtension = false;
|
| 350 |
|
|
//rc_packet.isPartOfChain = false;
|
| 351 |
|
|
if(response_packet_buffer_accepted_loaded[0].read()){
|
| 352 |
|
|
//rc_packet.packet.range(31,0) = response_packet_buffer_accepted[0].read().packet;
|
| 353 |
|
|
//rc_packet.data_address = response_packet_buffer_accepted[0].read().data_address;
|
| 354 |
|
|
response_refid = response_packet_buffer_accepted_refid[0].read();
|
| 355 |
|
|
}
|
| 356 |
|
|
else{
|
| 357 |
|
|
//rc_packet.packet.range(31,0) = response_packet_buffer_accepted[1].read().packet;
|
| 358 |
|
|
//rc_packet.data_address = response_packet_buffer_accepted[1].read().data_address;
|
| 359 |
|
|
response_refid = response_packet_buffer_accepted_refid[1].read();
|
| 360 |
|
|
}
|
| 361 |
|
|
|
| 362 |
|
|
// Select the posted packet
|
| 363 |
|
|
bool pc_packet_available = posted_packet_buffer_accepted_loaded[0].read() ||
|
| 364 |
|
|
posted_packet_buffer_accepted_loaded[1].read();
|
| 365 |
|
|
if(posted_packet_buffer_accepted_loaded[0].read()){
|
| 366 |
|
|
//pc_packet = posted_packet_buffer_accepted[0].read();
|
| 367 |
|
|
posted_response_refid = posted_packet_buffer_accepted_response_refid[0].read();
|
| 368 |
|
|
posted_nposted_refid = posted_packet_buffer_accepted_nposted_refid[0].read();
|
| 369 |
|
|
}
|
| 370 |
|
|
else{
|
| 371 |
|
|
//pc_packet = posted_packet_buffer_accepted[1].read();
|
| 372 |
|
|
posted_response_refid = posted_packet_buffer_accepted_response_refid[1].read();
|
| 373 |
|
|
posted_nposted_refid = posted_packet_buffer_accepted_nposted_refid[1].read();
|
| 374 |
|
|
}
|
| 375 |
|
|
|
| 376 |
|
|
// Select the non-posted packet
|
| 377 |
|
|
bool npc_packet_available = nposted_packet_buffer_accepted_loaded[0].read() ||
|
| 378 |
|
|
nposted_packet_buffer_accepted_loaded[1].read();
|
| 379 |
|
|
if(nposted_packet_buffer_accepted_loaded[0].read()){
|
| 380 |
|
|
//npc_packet = nposted_packet_buffer_accepted[0].read();
|
| 381 |
|
|
nposted_refid = nposted_packet_buffer_accepted_refid[0].read();
|
| 382 |
|
|
}
|
| 383 |
|
|
else{
|
| 384 |
|
|
//npc_packet = nposted_packet_buffer_accepted[1].read();
|
| 385 |
|
|
nposted_refid = nposted_packet_buffer_accepted_refid[1].read();
|
| 386 |
|
|
}
|
| 387 |
|
|
|
| 388 |
|
|
////////////////////////////////////////////////////////
|
| 389 |
|
|
// Compare refids to know the order the packet arrived
|
| 390 |
|
|
// relatively to the posted channel
|
| 391 |
|
|
////////////////////////////////////////////////////////
|
| 392 |
|
|
sc_uint<LOG2_NB_OF_BUFFERS+1> nposted_refid_compared =
|
| 393 |
|
|
nposted_refid - posted_nposted_refid;
|
| 394 |
|
|
bool nposted_ordering_ok = !pc_packet_available || nposted_refid_compared[LOG2_NB_OF_BUFFERS];
|
| 395 |
|
|
|
| 396 |
|
|
sc_uint<LOG2_NB_OF_BUFFERS+1> response_refid_compared =
|
| 397 |
|
|
response_refid - posted_response_refid;
|
| 398 |
|
|
bool response_ordering_ok = !pc_packet_available || response_refid_compared[LOG2_NB_OF_BUFFERS];
|
| 399 |
|
|
|
| 400 |
|
|
sc_bv<64> rc_packet_bits = rc_packet_accepted.read().packet;
|
| 401 |
|
|
sc_bv<64> pc_packet_bits = pc_packet_accepted.read().packet;
|
| 402 |
|
|
sc_bv<64> npc_packet_bits = npc_packet_accepted.read().packet;
|
| 403 |
|
|
|
| 404 |
|
|
PacketCommand rc_packet_cmd = getPacketCommand(rc_packet_bits.range(5,0));
|
| 405 |
|
|
PacketCommand pc_packet_cmd = getPacketCommand(pc_packet_bits.range(5,0));
|
| 406 |
|
|
PacketCommand npc_packet_cmd = getPacketCommand(npc_packet_bits.range(5,0));
|
| 407 |
|
|
|
| 408 |
|
|
bool rcFreeWithData =
|
| 409 |
|
|
//If there is data associated, make sure that the data has finished
|
| 410 |
|
|
//coming in
|
| 411 |
|
|
!(rc_packet_accepted.read().data_address == cd_data_pending_addr_ro &&
|
| 412 |
|
|
hasDataAssociated(rc_packet_cmd) &&
|
| 413 |
|
|
cd_data_pending_ro.read());
|
| 414 |
|
|
|
| 415 |
|
|
bool pcFreeWithData =
|
| 416 |
|
|
//If there is data associated, make sure that the data has finished
|
| 417 |
|
|
//coming in
|
| 418 |
|
|
!(pc_packet_accepted.read().data_address == cd_data_pending_addr_ro &&
|
| 419 |
|
|
hasDataAssociated(pc_packet_cmd) &&
|
| 420 |
|
|
cd_data_pending_ro.read());
|
| 421 |
|
|
|
| 422 |
|
|
bool npcFreeWithData =
|
| 423 |
|
|
//If there is data associated, make sure that the data has finished
|
| 424 |
|
|
//coming in
|
| 425 |
|
|
!(npc_packet_accepted.read().data_address == cd_data_pending_addr_ro &&
|
| 426 |
|
|
hasDataAssociated(npc_packet_cmd) &&
|
| 427 |
|
|
cd_data_pending_ro.read());
|
| 428 |
|
|
|
| 429 |
|
|
//Most important packet is Response with passPW
|
| 430 |
|
|
/**
|
| 431 |
|
|
This first condition makes it so a packet is only issued once every
|
| 432 |
|
|
two cycles. Because most packets are 64 bits, this should not cause
|
| 433 |
|
|
too much slowdown. This is done because to output a packet every cycle
|
| 434 |
|
|
would require an extra buffer, at least for the posted channel.
|
| 435 |
|
|
*/
|
| 436 |
|
|
if(accepted_output_loaded.read() &&
|
| 437 |
|
|
(ack[UI_DEST].read() || ack[CSR_DEST].read() || csr_sync.read()) ){
|
| 438 |
|
|
out_packet_accepted = out_packet_accepted.read();
|
| 439 |
|
|
out_packet_available_ui = false;
|
| 440 |
|
|
out_packet_available_csr = false;
|
| 441 |
|
|
accepted_output_loaded = false;
|
| 442 |
|
|
accepted_vc_decoded = "000";
|
| 443 |
|
|
}
|
| 444 |
|
|
else if(rc_packet_available &&
|
| 445 |
|
|
getPassPW(rc_packet_bits) &&
|
| 446 |
|
|
rcFreeWithData &&
|
| 447 |
|
|
(! (pcFreeWithData && pc_packet_accepted_maxwait_reached.read() ||
|
| 448 |
|
|
npcFreeWithData && npc_packet_accepted_maxwait_reached.read())
|
| 449 |
|
|
|| rc_packet_accepted_maxwait_reached.read()))
|
| 450 |
|
|
{
|
| 451 |
|
|
out_packet_accepted = rc_packet_accepted.read();
|
| 452 |
|
|
out_packet_available_ui = true;
|
| 453 |
|
|
out_packet_available_csr = false;
|
| 454 |
|
|
accepted_output_loaded = true;
|
| 455 |
|
|
accepted_vc_decoded = "100";
|
| 456 |
|
|
}
|
| 457 |
|
|
//After that, it's the posted channel, whatever passPW is, also if
|
| 458 |
|
|
//there is room in the next device
|
| 459 |
|
|
else if(pc_packet_available &&
|
| 460 |
|
|
pcFreeWithData &&
|
| 461 |
|
|
(! (rcFreeWithData && rc_packet_accepted_maxwait_reached.read() ||
|
| 462 |
|
|
npcFreeWithData && npc_packet_accepted_maxwait_reached.read())
|
| 463 |
|
|
|| pc_packet_accepted_maxwait_reached.read()))
|
| 464 |
|
|
{
|
| 465 |
|
|
out_packet_accepted = pc_packet_accepted.read();
|
| 466 |
|
|
bool pc_packet_goes_to_csr =
|
| 467 |
|
|
request_goes_to_csr(pc_packet_bits);
|
| 468 |
|
|
out_packet_available_ui = !pc_packet_goes_to_csr;
|
| 469 |
|
|
out_packet_available_csr = pc_packet_goes_to_csr;
|
| 470 |
|
|
accepted_output_loaded = true;
|
| 471 |
|
|
accepted_vc_decoded = "001";
|
| 472 |
|
|
}
|
| 473 |
|
|
//Next, we go back to the response channel if there are no posted request waiting
|
| 474 |
|
|
//to be sent that aren't selected because it's data is not fully arrived
|
| 475 |
|
|
else if(rc_packet_available &&
|
| 476 |
|
|
rcFreeWithData && response_ordering_ok &&
|
| 477 |
|
|
(! (npcFreeWithData && npc_packet_accepted_maxwait_reached.read())
|
| 478 |
|
|
|| rc_packet_accepted_maxwait_reached.read()))
|
| 479 |
|
|
{
|
| 480 |
|
|
out_packet_accepted = rc_packet_accepted.read();
|
| 481 |
|
|
out_packet_available_ui = true;
|
| 482 |
|
|
out_packet_available_csr = false;
|
| 483 |
|
|
accepted_output_loaded = true;
|
| 484 |
|
|
accepted_vc_decoded = "100";
|
| 485 |
|
|
}
|
| 486 |
|
|
//After that, we fo with the NPC with passPW or non passPW if not packets
|
| 487 |
|
|
//in posted
|
| 488 |
|
|
else if(npc_packet_available &&
|
| 489 |
|
|
(getPassPW(npc_packet_bits) ||
|
| 490 |
|
|
nposted_ordering_ok)&&
|
| 491 |
|
|
npcFreeWithData)
|
| 492 |
|
|
{
|
| 493 |
|
|
out_packet_accepted = npc_packet_accepted.read();
|
| 494 |
|
|
bool npc_packet_goes_to_csr =
|
| 495 |
|
|
request_goes_to_csr(npc_packet_bits);
|
| 496 |
|
|
|
| 497 |
|
|
out_packet_available_ui = !npc_packet_goes_to_csr;
|
| 498 |
|
|
out_packet_available_csr = npc_packet_goes_to_csr;
|
| 499 |
|
|
accepted_output_loaded = true;
|
| 500 |
|
|
accepted_vc_decoded = "010";
|
| 501 |
|
|
}
|
| 502 |
|
|
//If there is nothing, output zeros
|
| 503 |
|
|
else{
|
| 504 |
|
|
out_packet_accepted = out_packet_accepted.read();
|
| 505 |
|
|
out_packet_available_ui = false;
|
| 506 |
|
|
out_packet_available_csr = false;
|
| 507 |
|
|
accepted_output_loaded = false;
|
| 508 |
|
|
accepted_vc_decoded = "000";
|
| 509 |
|
|
}
|
| 510 |
|
|
}
|
| 511 |
|
|
|
| 512 |
|
|
void final_reordering_l3::updateBufferContent(){
|
| 513 |
|
|
//////////////////////////////////////////////////////////////
|
| 514 |
|
|
// Manage accepted registers
|
| 515 |
|
|
//////////////////////////////////////////////////////////////
|
| 516 |
|
|
|
| 517 |
|
|
// Posted channel registers
|
| 518 |
|
|
posted_packet_buffer_accepted_loaded[0] =
|
| 519 |
|
|
(posted_packet_buffer_accepted_loaded[0].read() ||
|
| 520 |
|
|
posted_packet_buffer_accepted_loaded[1].read() ||
|
| 521 |
|
|
fetched_packet_available[ACCEPTED_DEST].read() &&
|
| 522 |
|
|
fetched_packet_vc[ACCEPTED_DEST].read() == VC_POSTED)
|
| 523 |
|
|
&&
|
| 524 |
|
|
!((ack[UI_DEST].read() || ack[CSR_DEST].read()) && (sc_bit)accepted_vc_decoded.read()[0]);
|
| 525 |
|
|
|
| 526 |
|
|
bool increment_posted_accepted = registered_ack_accepted.read() &&
|
| 527 |
|
|
!(sc_bit)registered_accepted_vc_decoded.read()[VC_POSTED];
|
| 528 |
|
|
bool posted_accepted_counter_saturate[2];
|
| 529 |
|
|
posted_accepted_counter_saturate[0] = posted_packet_wait_count_accepted[0].read() == MAX_PASSPW_COUNT;
|
| 530 |
|
|
posted_accepted_counter_saturate[1] = posted_packet_wait_count_accepted[1].read() == MAX_PASSPW_COUNT;
|
| 531 |
|
|
|
| 532 |
|
|
if(!posted_packet_buffer_accepted_loaded[0].read()){
|
| 533 |
|
|
if(posted_packet_buffer_accepted_loaded[1].read()){
|
| 534 |
|
|
posted_packet_buffer_accepted[0] = posted_packet_buffer_accepted[1];
|
| 535 |
|
|
posted_packet_wait_count_accepted[0] = posted_packet_wait_count_accepted[1].read() +
|
| 536 |
|
|
sc_uint<1>(increment_posted_accepted && !posted_accepted_counter_saturate[1]);
|
| 537 |
|
|
posted_packet_buffer_accepted_nposted_refid[0] =
|
| 538 |
|
|
posted_packet_buffer_accepted_nposted_refid[1];
|
| 539 |
|
|
posted_packet_buffer_accepted_response_refid[0] =
|
| 540 |
|
|
posted_packet_buffer_accepted_response_refid[1];
|
| 541 |
|
|
}
|
| 542 |
|
|
else{
|
| 543 |
|
|
posted_packet_buffer_accepted[0] = fetched_packet[ACCEPTED_DEST];
|
| 544 |
|
|
posted_packet_wait_count_accepted[0] = 0;
|
| 545 |
|
|
posted_packet_buffer_accepted_nposted_refid[0] =
|
| 546 |
|
|
fetched_packet_nposted_refid[ACCEPTED_DEST];
|
| 547 |
|
|
posted_packet_buffer_accepted_response_refid[0] =
|
| 548 |
|
|
fetched_packet_response_refid[ACCEPTED_DEST];
|
| 549 |
|
|
}
|
| 550 |
|
|
}
|
| 551 |
|
|
else{
|
| 552 |
|
|
posted_packet_wait_count_accepted[0] = posted_packet_wait_count_accepted[0].read() +
|
| 553 |
|
|
sc_uint<1>(increment_posted_accepted && !posted_accepted_counter_saturate[0]);
|
| 554 |
|
|
}
|
| 555 |
|
|
|
| 556 |
|
|
posted_packet_buffer_accepted_loaded[1] = !posted_requested[ACCEPTED_DEST].read();
|
| 557 |
|
|
|
| 558 |
|
|
|
| 559 |
|
|
if(!posted_packet_buffer_accepted_loaded[1].read()){
|
| 560 |
|
|
posted_packet_buffer_accepted[1] = fetched_packet[ACCEPTED_DEST];
|
| 561 |
|
|
posted_packet_wait_count_accepted[1] = 0;
|
| 562 |
|
|
posted_packet_buffer_accepted_nposted_refid[1] =
|
| 563 |
|
|
fetched_packet_nposted_refid[ACCEPTED_DEST];
|
| 564 |
|
|
posted_packet_buffer_accepted_response_refid[1] =
|
| 565 |
|
|
fetched_packet_response_refid[ACCEPTED_DEST];
|
| 566 |
|
|
}
|
| 567 |
|
|
else{
|
| 568 |
|
|
posted_packet_wait_count_accepted[1] = posted_packet_wait_count_accepted[1].read() +
|
| 569 |
|
|
sc_uint<1>(increment_posted_accepted && !posted_accepted_counter_saturate[1]);
|
| 570 |
|
|
}
|
| 571 |
|
|
|
| 572 |
|
|
// NON-Posted channel registers
|
| 573 |
|
|
nposted_packet_buffer_accepted_loaded[0] =
|
| 574 |
|
|
(nposted_packet_buffer_accepted_loaded[0].read() ||
|
| 575 |
|
|
nposted_packet_buffer_accepted_loaded[1].read() ||
|
| 576 |
|
|
fetched_packet_available[ACCEPTED_DEST].read() &&
|
| 577 |
|
|
fetched_packet_vc[ACCEPTED_DEST].read() == VC_NON_POSTED)
|
| 578 |
|
|
&&
|
| 579 |
|
|
!((ack[UI_DEST].read() || ack[CSR_DEST].read()) && (sc_bit)accepted_vc_decoded.read()[1]);
|
| 580 |
|
|
|
| 581 |
|
|
bool increment_nposted_accepted = registered_ack_accepted.read() &&
|
| 582 |
|
|
!(sc_bit)registered_accepted_vc_decoded.read()[VC_NON_POSTED];
|
| 583 |
|
|
bool nposted_counter_saturate[2];
|
| 584 |
|
|
nposted_counter_saturate[0] = nposted_packet_wait_count_accepted[0].read() == 3;
|
| 585 |
|
|
nposted_counter_saturate[1] = nposted_packet_wait_count_accepted[1].read() == 3;
|
| 586 |
|
|
|
| 587 |
|
|
if(!nposted_packet_buffer_accepted_loaded[0].read()){
|
| 588 |
|
|
if(nposted_packet_buffer_accepted_loaded[1].read()){
|
| 589 |
|
|
nposted_packet_buffer_accepted[0] = nposted_packet_buffer_accepted[1];
|
| 590 |
|
|
nposted_packet_wait_count_accepted[0] = nposted_packet_wait_count_accepted[1].read() +
|
| 591 |
|
|
sc_uint<1>(increment_nposted_accepted && !nposted_counter_saturate[1]);
|
| 592 |
|
|
nposted_packet_buffer_accepted_refid[0] =
|
| 593 |
|
|
nposted_packet_buffer_accepted_refid[1];
|
| 594 |
|
|
}
|
| 595 |
|
|
else{
|
| 596 |
|
|
nposted_packet_buffer_accepted[0] = fetched_packet[ACCEPTED_DEST];
|
| 597 |
|
|
nposted_packet_wait_count_accepted[0] = 0;
|
| 598 |
|
|
nposted_packet_buffer_accepted_refid[0] =
|
| 599 |
|
|
fetched_packet_nposted_refid[ACCEPTED_DEST];
|
| 600 |
|
|
}
|
| 601 |
|
|
}
|
| 602 |
|
|
else{
|
| 603 |
|
|
nposted_packet_wait_count_accepted[0] = nposted_packet_wait_count_accepted[0].read() +
|
| 604 |
|
|
sc_uint<1>(increment_nposted_accepted && !nposted_counter_saturate[0]);
|
| 605 |
|
|
}
|
| 606 |
|
|
|
| 607 |
|
|
nposted_packet_buffer_accepted_loaded[1] = !nposted_requested[ACCEPTED_DEST].read();
|
| 608 |
|
|
|
| 609 |
|
|
if(!nposted_packet_buffer_accepted_loaded[1].read()){
|
| 610 |
|
|
nposted_packet_buffer_accepted[1] = fetched_packet[ACCEPTED_DEST];
|
| 611 |
|
|
nposted_packet_wait_count_accepted[1] = 0;
|
| 612 |
|
|
nposted_packet_buffer_accepted_refid[1] =
|
| 613 |
|
|
fetched_packet_nposted_refid[ACCEPTED_DEST];
|
| 614 |
|
|
}
|
| 615 |
|
|
else{
|
| 616 |
|
|
nposted_packet_wait_count_accepted[1] = nposted_packet_wait_count_accepted[1].read() +
|
| 617 |
|
|
sc_uint<1>(increment_nposted_accepted && !nposted_counter_saturate[1]);
|
| 618 |
|
|
}
|
| 619 |
|
|
|
| 620 |
|
|
// Response channel registers
|
| 621 |
|
|
response_packet_buffer_accepted_loaded[0] =
|
| 622 |
|
|
(response_packet_buffer_accepted_loaded[0].read() ||
|
| 623 |
|
|
response_packet_buffer_accepted_loaded[1].read() ||
|
| 624 |
|
|
fetched_packet_available[ACCEPTED_DEST].read() &&
|
| 625 |
|
|
fetched_packet_vc[ACCEPTED_DEST].read() == VC_RESPONSE)
|
| 626 |
|
|
&&
|
| 627 |
|
|
!((ack[UI_DEST].read() || ack[CSR_DEST].read()) && (sc_bit)accepted_vc_decoded.read()[2]);
|
| 628 |
|
|
|
| 629 |
|
|
bool increment_response_accepted = registered_ack_accepted.read() &&
|
| 630 |
|
|
!(sc_bit)registered_accepted_vc_decoded.read()[VC_RESPONSE];
|
| 631 |
|
|
bool response_counter_saturate[2];
|
| 632 |
|
|
response_counter_saturate[0] = response_packet_wait_count_accepted[0].read() == 3;
|
| 633 |
|
|
response_counter_saturate[1] = response_packet_wait_count_accepted[1].read() == 3;
|
| 634 |
|
|
|
| 635 |
|
|
|
| 636 |
|
|
syn_ResponseControlPacketComplete acceptedInputResponsePacket;
|
| 637 |
|
|
sc_bv<64> fetched_accepted_packet_bits = fetched_packet[ACCEPTED_DEST].read().packet;
|
| 638 |
|
|
acceptedInputResponsePacket.packet = fetched_accepted_packet_bits.range(31,0);
|
| 639 |
|
|
acceptedInputResponsePacket.data_address = fetched_packet[ACCEPTED_DEST].read().data_address;
|
| 640 |
|
|
|
| 641 |
|
|
if(!response_packet_buffer_accepted_loaded[0].read()){
|
| 642 |
|
|
if(response_packet_buffer_accepted_loaded[1].read()){
|
| 643 |
|
|
response_packet_buffer_accepted[0] = response_packet_buffer_accepted[1];
|
| 644 |
|
|
response_packet_wait_count_accepted[0] = response_packet_wait_count_accepted[1].read() +
|
| 645 |
|
|
sc_uint<1>(increment_response_accepted && !response_counter_saturate[1]);
|
| 646 |
|
|
response_packet_buffer_accepted_refid[0] =
|
| 647 |
|
|
response_packet_buffer_accepted_refid[1];
|
| 648 |
|
|
}
|
| 649 |
|
|
else{
|
| 650 |
|
|
response_packet_buffer_accepted[0] = acceptedInputResponsePacket;
|
| 651 |
|
|
response_packet_wait_count_accepted[0] = 0;
|
| 652 |
|
|
response_packet_buffer_accepted_refid[0] =
|
| 653 |
|
|
fetched_packet_nposted_refid[ACCEPTED_DEST];
|
| 654 |
|
|
}
|
| 655 |
|
|
}
|
| 656 |
|
|
else{
|
| 657 |
|
|
response_packet_wait_count_accepted[0] = response_packet_wait_count_accepted[0].read() +
|
| 658 |
|
|
sc_uint<1>(increment_response_accepted && !response_counter_saturate[0]);
|
| 659 |
|
|
}
|
| 660 |
|
|
|
| 661 |
|
|
response_packet_buffer_accepted_loaded[1] = !response_requested[ACCEPTED_DEST].read();
|
| 662 |
|
|
|
| 663 |
|
|
if(!response_packet_buffer_accepted_loaded[1].read()){
|
| 664 |
|
|
response_packet_buffer_accepted[1] = acceptedInputResponsePacket;
|
| 665 |
|
|
response_packet_wait_count_accepted[1] = 0;
|
| 666 |
|
|
response_packet_buffer_accepted_refid[1] =
|
| 667 |
|
|
fetched_packet_nposted_refid[ACCEPTED_DEST];
|
| 668 |
|
|
}
|
| 669 |
|
|
else{
|
| 670 |
|
|
response_packet_wait_count_accepted[1] = response_packet_wait_count_accepted[1].read() +
|
| 671 |
|
|
sc_uint<1>(increment_response_accepted && !response_counter_saturate[1]);
|
| 672 |
|
|
}
|
| 673 |
|
|
|
| 674 |
|
|
|
| 675 |
|
|
//////////////////////////////////////////////////////////////
|
| 676 |
|
|
// Manage rejected registers
|
| 677 |
|
|
//////////////////////////////////////////////////////////////
|
| 678 |
|
|
|
| 679 |
|
|
// Posted channel registers
|
| 680 |
|
|
posted_packet_buffer_rejected_loaded[0] =
|
| 681 |
|
|
(posted_packet_buffer_rejected_loaded[0].read() ||
|
| 682 |
|
|
posted_packet_buffer_rejected_loaded[1].read() ||
|
| 683 |
|
|
fetched_packet_available[FWD_DEST].read() &&
|
| 684 |
|
|
fetched_packet_vc[FWD_DEST].read() == VC_POSTED)
|
| 685 |
|
|
&&
|
| 686 |
|
|
!(ack[FWD_DEST].read() && (sc_bit)rejected_vc_decoded.read()[0]);
|
| 687 |
|
|
|
| 688 |
|
|
bool increment_posted_rejected = registered_ack_rejected.read() &&
|
| 689 |
|
|
!(sc_bit)registered_rejected_vc_decoded.read()[VC_POSTED];
|
| 690 |
|
|
bool posted_rejected_counter_saturate[2];
|
| 691 |
|
|
posted_rejected_counter_saturate[0] = posted_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT;
|
| 692 |
|
|
posted_rejected_counter_saturate[1] = posted_packet_wait_count_rejected[1].read() == MAX_PASSPW_COUNT;
|
| 693 |
|
|
|
| 694 |
|
|
if(!posted_packet_buffer_rejected_loaded[0].read()){
|
| 695 |
|
|
if(posted_packet_buffer_rejected_loaded[1].read()){
|
| 696 |
|
|
posted_packet_buffer_rejected[0] = posted_packet_buffer_rejected[1];
|
| 697 |
|
|
posted_packet_wait_count_rejected[0] = posted_packet_wait_count_rejected[1].read() +
|
| 698 |
|
|
sc_uint<1>(increment_posted_rejected && !posted_rejected_counter_saturate[1]);
|
| 699 |
|
|
posted_packet_buffer_rejected_nposted_refid[0] =
|
| 700 |
|
|
posted_packet_buffer_rejected_nposted_refid[1];
|
| 701 |
|
|
posted_packet_buffer_rejected_response_refid[0] =
|
| 702 |
|
|
posted_packet_buffer_rejected_response_refid[1];
|
| 703 |
|
|
}
|
| 704 |
|
|
else{
|
| 705 |
|
|
posted_packet_buffer_rejected[0] = fetched_packet[FWD_DEST];
|
| 706 |
|
|
posted_packet_wait_count_rejected[0] = 0;
|
| 707 |
|
|
posted_packet_buffer_rejected_nposted_refid[0] =
|
| 708 |
|
|
fetched_packet_nposted_refid[FWD_DEST];
|
| 709 |
|
|
posted_packet_buffer_rejected_response_refid[0] =
|
| 710 |
|
|
fetched_packet_response_refid[FWD_DEST];
|
| 711 |
|
|
}
|
| 712 |
|
|
}
|
| 713 |
|
|
else{
|
| 714 |
|
|
posted_packet_wait_count_rejected[0] = posted_packet_wait_count_rejected[0].read() +
|
| 715 |
|
|
sc_uint<1>(increment_posted_rejected && !posted_rejected_counter_saturate[0]);
|
| 716 |
|
|
}
|
| 717 |
|
|
|
| 718 |
|
|
posted_packet_buffer_rejected_loaded[1] = !posted_requested[FWD_DEST].read();
|
| 719 |
|
|
|
| 720 |
|
|
if(!posted_packet_buffer_rejected_loaded[1].read()){
|
| 721 |
|
|
posted_packet_buffer_rejected[1] = fetched_packet[FWD_DEST];
|
| 722 |
|
|
posted_packet_wait_count_rejected[1] = 0;
|
| 723 |
|
|
posted_packet_buffer_rejected_nposted_refid[1] =
|
| 724 |
|
|
fetched_packet_nposted_refid[FWD_DEST];
|
| 725 |
|
|
posted_packet_buffer_rejected_response_refid[1] =
|
| 726 |
|
|
fetched_packet_response_refid[FWD_DEST];
|
| 727 |
|
|
}
|
| 728 |
|
|
else{
|
| 729 |
|
|
posted_packet_wait_count_rejected[1] = posted_packet_wait_count_rejected[1].read() +
|
| 730 |
|
|
sc_uint<1>(increment_posted_rejected && !posted_rejected_counter_saturate[1]);
|
| 731 |
|
|
}
|
| 732 |
|
|
|
| 733 |
|
|
// NON-Posted channel registers
|
| 734 |
|
|
nposted_packet_buffer_rejected_loaded[0] =
|
| 735 |
|
|
(nposted_packet_buffer_rejected_loaded[0].read() ||
|
| 736 |
|
|
nposted_packet_buffer_rejected_loaded[1].read() ||
|
| 737 |
|
|
fetched_packet_available[FWD_DEST].read() &&
|
| 738 |
|
|
fetched_packet_vc[FWD_DEST].read() == VC_NON_POSTED)
|
| 739 |
|
|
&&
|
| 740 |
|
|
!(ack[FWD_DEST].read() && (sc_bit)rejected_vc_decoded.read()[1]);
|
| 741 |
|
|
|
| 742 |
|
|
bool increment_nposted_rejected = registered_ack_rejected.read() &&
|
| 743 |
|
|
!(sc_bit)registered_rejected_vc_decoded.read()[VC_NON_POSTED];
|
| 744 |
|
|
bool nposted_rejected_counter_saturate[2];
|
| 745 |
|
|
nposted_rejected_counter_saturate[0] = nposted_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT;
|
| 746 |
|
|
nposted_rejected_counter_saturate[1] = nposted_packet_wait_count_rejected[1].read() == MAX_PASSPW_COUNT;
|
| 747 |
|
|
|
| 748 |
|
|
if(!nposted_packet_buffer_rejected_loaded[0].read()){
|
| 749 |
|
|
if(nposted_packet_buffer_rejected_loaded[1].read()){
|
| 750 |
|
|
nposted_packet_buffer_rejected[0] = nposted_packet_buffer_rejected[1];
|
| 751 |
|
|
nposted_packet_wait_count_rejected[0] = nposted_packet_wait_count_rejected[1].read() +
|
| 752 |
|
|
sc_uint<1>(increment_nposted_rejected && !nposted_rejected_counter_saturate[1]);
|
| 753 |
|
|
nposted_packet_buffer_rejected_refid[0] =
|
| 754 |
|
|
nposted_packet_buffer_rejected_refid[1];
|
| 755 |
|
|
}
|
| 756 |
|
|
else{
|
| 757 |
|
|
nposted_packet_buffer_rejected[0] = fetched_packet[FWD_DEST];
|
| 758 |
|
|
nposted_packet_wait_count_rejected[0] = 0;
|
| 759 |
|
|
nposted_packet_buffer_rejected_refid[0] =
|
| 760 |
|
|
fetched_packet_nposted_refid[FWD_DEST];
|
| 761 |
|
|
}
|
| 762 |
|
|
}
|
| 763 |
|
|
else{
|
| 764 |
|
|
nposted_packet_wait_count_rejected[0] = nposted_packet_wait_count_rejected[0].read() +
|
| 765 |
|
|
sc_uint<1>(increment_nposted_rejected && !nposted_rejected_counter_saturate[0]);
|
| 766 |
|
|
}
|
| 767 |
|
|
|
| 768 |
|
|
nposted_packet_buffer_rejected_loaded[1] = !nposted_requested[FWD_DEST].read();
|
| 769 |
|
|
|
| 770 |
|
|
if(!nposted_packet_buffer_rejected_loaded[1].read()){
|
| 771 |
|
|
nposted_packet_buffer_rejected[1] = fetched_packet[FWD_DEST];
|
| 772 |
|
|
nposted_packet_wait_count_rejected[1] = 0;
|
| 773 |
|
|
nposted_packet_buffer_rejected_refid[1] =
|
| 774 |
|
|
fetched_packet_nposted_refid[FWD_DEST];
|
| 775 |
|
|
}
|
| 776 |
|
|
else{
|
| 777 |
|
|
nposted_packet_wait_count_rejected[1] = nposted_packet_wait_count_rejected[1].read() +
|
| 778 |
|
|
sc_uint<1>(increment_nposted_rejected && !nposted_rejected_counter_saturate[1]);
|
| 779 |
|
|
}
|
| 780 |
|
|
|
| 781 |
|
|
// Response channel registers
|
| 782 |
|
|
response_packet_buffer_rejected_loaded[0] =
|
| 783 |
|
|
(response_packet_buffer_rejected_loaded[0].read() ||
|
| 784 |
|
|
response_packet_buffer_rejected_loaded[1].read() ||
|
| 785 |
|
|
fetched_packet_available[FWD_DEST].read() &&
|
| 786 |
|
|
fetched_packet_vc[FWD_DEST].read() == VC_RESPONSE)
|
| 787 |
|
|
&&
|
| 788 |
|
|
!(ack[FWD_DEST].read() && (sc_bit)rejected_vc_decoded.read()[2]);
|
| 789 |
|
|
|
| 790 |
|
|
bool increment_response_rejected = registered_ack_rejected.read() &&
|
| 791 |
|
|
!(sc_bit)registered_rejected_vc_decoded.read()[VC_RESPONSE];
|
| 792 |
|
|
bool response_rejected_counter_saturate[2];
|
| 793 |
|
|
response_rejected_counter_saturate[0] = response_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT;
|
| 794 |
|
|
response_rejected_counter_saturate[1] = response_packet_wait_count_rejected[1].read() == MAX_PASSPW_COUNT;
|
| 795 |
|
|
|
| 796 |
|
|
syn_ResponseControlPacketComplete rejectedInputResponsePacket;
|
| 797 |
|
|
sc_bv<64> fetched_rejected_packet_bits = fetched_packet[FWD_DEST].read().packet;
|
| 798 |
|
|
rejectedInputResponsePacket.packet = fetched_rejected_packet_bits.range(31,0);
|
| 799 |
|
|
rejectedInputResponsePacket.data_address = fetched_packet[FWD_DEST].read().data_address;
|
| 800 |
|
|
|
| 801 |
|
|
if(!response_packet_buffer_rejected_loaded[0].read()){
|
| 802 |
|
|
if(response_packet_buffer_rejected_loaded[1].read()){
|
| 803 |
|
|
response_packet_buffer_rejected[0] = response_packet_buffer_rejected[1];
|
| 804 |
|
|
response_packet_wait_count_rejected[0] = response_packet_wait_count_rejected[1].read() +
|
| 805 |
|
|
sc_uint<1>(increment_response_rejected && !response_rejected_counter_saturate[1]);
|
| 806 |
|
|
response_packet_buffer_rejected_refid[0] =
|
| 807 |
|
|
response_packet_buffer_rejected_refid[1];
|
| 808 |
|
|
}
|
| 809 |
|
|
else{
|
| 810 |
|
|
response_packet_buffer_rejected[0] = rejectedInputResponsePacket;
|
| 811 |
|
|
response_packet_wait_count_rejected[0] = 0;
|
| 812 |
|
|
response_packet_buffer_rejected_refid[0] =
|
| 813 |
|
|
fetched_packet_nposted_refid[FWD_DEST];
|
| 814 |
|
|
}
|
| 815 |
|
|
}
|
| 816 |
|
|
else{
|
| 817 |
|
|
response_packet_wait_count_rejected[0] = response_packet_wait_count_rejected[0].read() +
|
| 818 |
|
|
sc_uint<1>(increment_response_rejected && !response_rejected_counter_saturate[0]);
|
| 819 |
|
|
}
|
| 820 |
|
|
|
| 821 |
|
|
response_packet_buffer_rejected_loaded[1] = !response_requested[FWD_DEST].read();
|
| 822 |
|
|
|
| 823 |
|
|
if(!response_packet_buffer_rejected_loaded[1].read()){
|
| 824 |
|
|
response_packet_buffer_rejected[1] = rejectedInputResponsePacket;
|
| 825 |
|
|
response_packet_wait_count_rejected[1] = 0;
|
| 826 |
|
|
response_packet_buffer_rejected_refid[1] =
|
| 827 |
|
|
fetched_packet_nposted_refid[FWD_DEST];
|
| 828 |
|
|
}
|
| 829 |
|
|
else{
|
| 830 |
|
|
response_packet_wait_count_rejected[1] = response_packet_wait_count_rejected[1].read() +
|
| 831 |
|
|
sc_uint<1>(increment_response_rejected && !response_rejected_counter_saturate[1]);
|
| 832 |
|
|
}
|
| 833 |
|
|
|
| 834 |
|
|
}
|
| 835 |
|
|
|
| 836 |
|
|
|
| 837 |
|
|
void final_reordering_l3::clocked_process(){
|
| 838 |
|
|
if(!resetx.read()){
|
| 839 |
|
|
syn_ControlPacketComplete default_syn_packet_complete;
|
| 840 |
|
|
initialize_syn_ControlPacketComplete(default_syn_packet_complete);
|
| 841 |
|
|
|
| 842 |
|
|
syn_ResponseControlPacketComplete default_response_syn_packet_complete;
|
| 843 |
|
|
initialize_syn_ResponseControlPacketComplete(default_response_syn_packet_complete);
|
| 844 |
|
|
|
| 845 |
|
|
out_packet_fwd = default_syn_packet_complete;
|
| 846 |
|
|
out_packet_vc_fwd = 0;
|
| 847 |
|
|
out_packet_accepted = default_syn_packet_complete;
|
| 848 |
|
|
accepted_output_loaded = false;
|
| 849 |
|
|
rejected_output_loaded = false;
|
| 850 |
|
|
out_packet_available_csr = false;
|
| 851 |
|
|
out_packet_available_ui = false;
|
| 852 |
|
|
out_packet_available_fwd = false;
|
| 853 |
|
|
accepted_vc_decoded = 0;
|
| 854 |
|
|
rejected_vc_decoded = 0;
|
| 855 |
|
|
|
| 856 |
|
|
for(int depth = 0; depth < 2; depth++){
|
| 857 |
|
|
posted_packet_buffer_accepted[depth] = default_syn_packet_complete;
|
| 858 |
|
|
posted_packet_wait_count_accepted[depth] = 0;
|
| 859 |
|
|
posted_packet_buffer_accepted_loaded[depth] = false;
|
| 860 |
|
|
posted_packet_buffer_accepted_nposted_refid[depth] = 0;
|
| 861 |
|
|
posted_packet_buffer_accepted_response_refid[depth] = 0;
|
| 862 |
|
|
|
| 863 |
|
|
nposted_packet_buffer_accepted[depth] = default_syn_packet_complete;
|
| 864 |
|
|
nposted_packet_wait_count_accepted[depth] = 0;
|
| 865 |
|
|
nposted_packet_buffer_accepted_loaded[depth] = false;
|
| 866 |
|
|
nposted_packet_buffer_accepted_refid[depth] = 0;
|
| 867 |
|
|
|
| 868 |
|
|
response_packet_buffer_accepted[depth] = default_response_syn_packet_complete;
|
| 869 |
|
|
response_packet_wait_count_accepted[depth] = 0;
|
| 870 |
|
|
response_packet_buffer_accepted_loaded[depth] = false;
|
| 871 |
|
|
response_packet_buffer_accepted_refid[depth] = 0;
|
| 872 |
|
|
|
| 873 |
|
|
posted_packet_buffer_rejected[depth] = default_syn_packet_complete;
|
| 874 |
|
|
posted_packet_wait_count_rejected[depth] = 0;
|
| 875 |
|
|
posted_packet_buffer_rejected_loaded[depth] = false;
|
| 876 |
|
|
posted_packet_buffer_rejected_nposted_refid[depth] = 0;
|
| 877 |
|
|
posted_packet_buffer_rejected_response_refid[depth] = 0;
|
| 878 |
|
|
|
| 879 |
|
|
nposted_packet_buffer_rejected[depth] = default_syn_packet_complete;
|
| 880 |
|
|
nposted_packet_wait_count_rejected[depth] = 0;
|
| 881 |
|
|
nposted_packet_buffer_rejected_loaded[depth] = false;
|
| 882 |
|
|
nposted_packet_buffer_rejected_refid[depth] = 0;
|
| 883 |
|
|
|
| 884 |
|
|
response_packet_buffer_rejected[depth] = default_response_syn_packet_complete;
|
| 885 |
|
|
response_packet_wait_count_rejected[depth] = 0;
|
| 886 |
|
|
response_packet_buffer_rejected_loaded[depth] = false;
|
| 887 |
|
|
response_packet_buffer_rejected_refid[depth] = 0;
|
| 888 |
|
|
}
|
| 889 |
|
|
|
| 890 |
|
|
registered_accepted_vc_decoded = 0;
|
| 891 |
|
|
registered_rejected_vc_decoded = 0;
|
| 892 |
|
|
registered_ack_rejected = false;
|
| 893 |
|
|
registered_ack_accepted = false;
|
| 894 |
|
|
}
|
| 895 |
|
|
else{
|
| 896 |
|
|
doFinalReorderingFWD();
|
| 897 |
|
|
doFinalReorderingAccepted();
|
| 898 |
|
|
updateBufferContent();
|
| 899 |
|
|
|
| 900 |
|
|
registered_accepted_vc_decoded = accepted_vc_decoded;
|
| 901 |
|
|
registered_rejected_vc_decoded = rejected_vc_decoded;
|
| 902 |
|
|
registered_ack_rejected = ack[FWD_DEST].read();
|
| 903 |
|
|
registered_ack_accepted = ack[UI_DEST].read() || ack[CSR_DEST].read();
|
| 904 |
|
|
}
|
| 905 |
|
|
}
|
| 906 |
|
|
|
| 907 |
|
|
void final_reordering_l3::output_request(){
|
| 908 |
|
|
posted_requested[ACCEPTED_DEST] =
|
| 909 |
|
|
!((posted_packet_buffer_accepted_loaded[0].read() &&
|
| 910 |
|
|
posted_packet_buffer_accepted_loaded[1].read()) ||
|
| 911 |
|
|
(fetched_packet_available[ACCEPTED_DEST].read() &&
|
| 912 |
|
|
fetched_packet_vc[ACCEPTED_DEST].read() == VC_POSTED) &&
|
| 913 |
|
|
(posted_packet_buffer_accepted_loaded[0].read() ^
|
| 914 |
|
|
posted_packet_buffer_accepted_loaded[1].read()));
|
| 915 |
|
|
|
| 916 |
|
|
posted_requested[FWD_DEST] =
|
| 917 |
|
|
!((posted_packet_buffer_rejected_loaded[0].read() &&
|
| 918 |
|
|
posted_packet_buffer_rejected_loaded[1].read()) ||
|
| 919 |
|
|
(fetched_packet_available[FWD_DEST].read() &&
|
| 920 |
|
|
fetched_packet_vc[FWD_DEST].read() == VC_POSTED) &&
|
| 921 |
|
|
(posted_packet_buffer_rejected_loaded[0].read() ^
|
| 922 |
|
|
posted_packet_buffer_rejected_loaded[1].read()));
|
| 923 |
|
|
|
| 924 |
|
|
nposted_requested[ACCEPTED_DEST] =
|
| 925 |
|
|
!((nposted_packet_buffer_accepted_loaded[0].read() &&
|
| 926 |
|
|
nposted_packet_buffer_accepted_loaded[1].read()) ||
|
| 927 |
|
|
(fetched_packet_available[ACCEPTED_DEST].read() &&
|
| 928 |
|
|
fetched_packet_vc[ACCEPTED_DEST].read() == VC_NON_POSTED) &&
|
| 929 |
|
|
(nposted_packet_buffer_accepted_loaded[0].read() ^
|
| 930 |
|
|
nposted_packet_buffer_accepted_loaded[1].read()));
|
| 931 |
|
|
|
| 932 |
|
|
nposted_requested[FWD_DEST] =
|
| 933 |
|
|
!((nposted_packet_buffer_rejected_loaded[0].read() &&
|
| 934 |
|
|
nposted_packet_buffer_rejected_loaded[1].read()) ||
|
| 935 |
|
|
(fetched_packet_available[FWD_DEST].read() &&
|
| 936 |
|
|
fetched_packet_vc[FWD_DEST].read() == VC_NON_POSTED) &&
|
| 937 |
|
|
(nposted_packet_buffer_rejected_loaded[0].read() ^
|
| 938 |
|
|
nposted_packet_buffer_rejected_loaded[1].read()));
|
| 939 |
|
|
|
| 940 |
|
|
response_requested[ACCEPTED_DEST] =
|
| 941 |
|
|
!((response_packet_buffer_accepted_loaded[0].read() &&
|
| 942 |
|
|
response_packet_buffer_accepted_loaded[1].read()) ||
|
| 943 |
|
|
(fetched_packet_available[ACCEPTED_DEST].read() &&
|
| 944 |
|
|
fetched_packet_vc[ACCEPTED_DEST].read() == VC_RESPONSE) &&
|
| 945 |
|
|
(response_packet_buffer_accepted_loaded[0].read() ^
|
| 946 |
|
|
response_packet_buffer_accepted_loaded[1].read()));
|
| 947 |
|
|
|
| 948 |
|
|
response_requested[FWD_DEST] =
|
| 949 |
|
|
!((response_packet_buffer_rejected_loaded[0].read() &&
|
| 950 |
|
|
response_packet_buffer_rejected_loaded[1].read()) ||
|
| 951 |
|
|
(fetched_packet_available[FWD_DEST].read() &&
|
| 952 |
|
|
fetched_packet_vc[FWD_DEST].read() == VC_RESPONSE) &&
|
| 953 |
|
|
(response_packet_buffer_rejected_loaded[0].read() ^
|
| 954 |
|
|
response_packet_buffer_rejected_loaded[1].read()));
|
| 955 |
|
|
}
|
| 956 |
|
|
|
| 957 |
|
|
void final_reordering_l3::find_next_packet_buf_workaround(){
|
| 958 |
|
|
//This function checks for the next packets to send.
|
| 959 |
|
|
//Yes, this could be done in the registered process, but
|
| 960 |
|
|
//the %!@$^% compiler to verilog generates invalid code
|
| 961 |
|
|
//when done in the same process because it generates
|
| 962 |
|
|
//unsized concatenations. By forcing the result to
|
| 963 |
|
|
//be in a signal, the right operation is done.
|
| 964 |
|
|
|
| 965 |
|
|
////////////////////////////////////
|
| 966 |
|
|
// Rejected
|
| 967 |
|
|
////////////////////////////////////
|
| 968 |
|
|
|
| 969 |
|
|
syn_ControlPacketComplete rc_packet_rejected_tmp;
|
| 970 |
|
|
|
| 971 |
|
|
initialize_syn_ControlPacketComplete(rc_packet_rejected_tmp);
|
| 972 |
|
|
if(response_packet_buffer_rejected_loaded[0].read()){
|
| 973 |
|
|
rc_packet_rejected_tmp.packet.range(31,0) = response_packet_buffer_rejected[0].read().packet;
|
| 974 |
|
|
rc_packet_rejected_tmp.data_address = response_packet_buffer_rejected[0].read().data_address;
|
| 975 |
|
|
rc_packet_rejected_maxwait_reached = response_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT;
|
| 976 |
|
|
}
|
| 977 |
|
|
else{
|
| 978 |
|
|
rc_packet_rejected_tmp.packet.range(31,0) = response_packet_buffer_rejected[1].read().packet;
|
| 979 |
|
|
rc_packet_rejected_tmp.data_address = response_packet_buffer_rejected[1].read().data_address;
|
| 980 |
|
|
rc_packet_rejected_maxwait_reached = response_packet_wait_count_rejected[1].read() == MAX_PASSPW_COUNT &&
|
| 981 |
|
|
response_packet_buffer_rejected_loaded[1].read();
|
| 982 |
|
|
}
|
| 983 |
|
|
rc_packet_rejected = rc_packet_rejected_tmp;
|
| 984 |
|
|
|
| 985 |
|
|
// Select the posted packet
|
| 986 |
|
|
if(posted_packet_buffer_rejected_loaded[0].read()){
|
| 987 |
|
|
pc_packet_rejected = posted_packet_buffer_rejected[0].read();
|
| 988 |
|
|
pc_packet_rejected_maxwait_reached = posted_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT;
|
| 989 |
|
|
}
|
| 990 |
|
|
else{
|
| 991 |
|
|
pc_packet_rejected = posted_packet_buffer_rejected[1].read();
|
| 992 |
|
|
pc_packet_rejected_maxwait_reached = posted_packet_wait_count_rejected[1].read() == MAX_PASSPW_COUNT &&
|
| 993 |
|
|
posted_packet_buffer_rejected_loaded[1].read();
|
| 994 |
|
|
}
|
| 995 |
|
|
|
| 996 |
|
|
// Select the non-posted packet
|
| 997 |
|
|
if(nposted_packet_buffer_rejected_loaded[0].read()){
|
| 998 |
|
|
npc_packet_rejected = nposted_packet_buffer_rejected[0].read();
|
| 999 |
|
|
npc_packet_rejected_maxwait_reached = posted_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT;
|
| 1000 |
|
|
}
|
| 1001 |
|
|
else{
|
| 1002 |
|
|
npc_packet_rejected = nposted_packet_buffer_rejected[1].read();
|
| 1003 |
|
|
npc_packet_rejected_maxwait_reached = posted_packet_wait_count_rejected[0].read() == MAX_PASSPW_COUNT &&
|
| 1004 |
|
|
nposted_packet_buffer_rejected_loaded[1].read();
|
| 1005 |
|
|
}
|
| 1006 |
|
|
|
| 1007 |
|
|
////////////////////////////////////
|
| 1008 |
|
|
// Accepted
|
| 1009 |
|
|
////////////////////////////////////
|
| 1010 |
|
|
|
| 1011 |
|
|
syn_ControlPacketComplete rc_packet_accepted_tmp;
|
| 1012 |
|
|
|
| 1013 |
|
|
initialize_syn_ControlPacketComplete(rc_packet_accepted_tmp);
|
| 1014 |
|
|
if(response_packet_buffer_accepted_loaded[0].read()){
|
| 1015 |
|
|
rc_packet_accepted_tmp.packet.range(31,0) = response_packet_buffer_accepted[0].read().packet;
|
| 1016 |
|
|
rc_packet_accepted_tmp.data_address = response_packet_buffer_accepted[0].read().data_address;
|
| 1017 |
|
|
rc_packet_accepted_maxwait_reached = response_packet_wait_count_accepted[0].read() == MAX_PASSPW_COUNT;
|
| 1018 |
|
|
}
|
| 1019 |
|
|
else{
|
| 1020 |
|
|
rc_packet_accepted_tmp.packet.range(31,0) = response_packet_buffer_accepted[1].read().packet;
|
| 1021 |
|
|
rc_packet_accepted_tmp.data_address = response_packet_buffer_accepted[1].read().data_address;
|
| 1022 |
|
|
rc_packet_accepted_maxwait_reached = response_packet_wait_count_accepted[1].read() == MAX_PASSPW_COUNT &&
|
| 1023 |
|
|
response_packet_buffer_accepted_loaded[1].read();
|
| 1024 |
|
|
}
|
| 1025 |
|
|
rc_packet_accepted = rc_packet_accepted_tmp;
|
| 1026 |
|
|
|
| 1027 |
|
|
if(posted_packet_buffer_accepted_loaded[0].read()){
|
| 1028 |
|
|
pc_packet_accepted = posted_packet_buffer_accepted[0].read();
|
| 1029 |
|
|
pc_packet_accepted_maxwait_reached = posted_packet_wait_count_accepted[0].read() == MAX_PASSPW_COUNT;
|
| 1030 |
|
|
}
|
| 1031 |
|
|
else{
|
| 1032 |
|
|
pc_packet_accepted = posted_packet_buffer_accepted[1].read();
|
| 1033 |
|
|
pc_packet_accepted_maxwait_reached =
|
| 1034 |
|
|
posted_packet_wait_count_accepted[1].read() == MAX_PASSPW_COUNT &&
|
| 1035 |
|
|
posted_packet_buffer_accepted_loaded[1].read();
|
| 1036 |
|
|
}
|
| 1037 |
|
|
|
| 1038 |
|
|
if(nposted_packet_buffer_accepted_loaded[0].read()){
|
| 1039 |
|
|
npc_packet_accepted = nposted_packet_buffer_accepted[0].read();
|
| 1040 |
|
|
npc_packet_accepted_maxwait_reached = posted_packet_wait_count_accepted[0].read() == MAX_PASSPW_COUNT;
|
| 1041 |
|
|
}
|
| 1042 |
|
|
else{
|
| 1043 |
|
|
npc_packet_accepted = nposted_packet_buffer_accepted[1].read();
|
| 1044 |
|
|
npc_packet_accepted_maxwait_reached = posted_packet_wait_count_accepted[1].read() == MAX_PASSPW_COUNT &&
|
| 1045 |
|
|
nposted_packet_buffer_accepted_loaded[1].read();
|
| 1046 |
|
|
}
|
| 1047 |
|
|
|
| 1048 |
|
|
}
|
| 1049 |
|
|
|
| 1050 |
|
|
|
| 1051 |
|
|
// Determine if the current buffer goes to the CSR
|
| 1052 |
|
|
bool final_reordering_l3::request_goes_to_csr(const sc_bv<64> &pkt) const
|
| 1053 |
|
|
{
|
| 1054 |
|
|
/** No need to check if the packet is upstream of if it was a 64 bit error
|
| 1055 |
|
|
since those cases were ruled out in the entrance reordering */
|
| 1056 |
|
|
sc_bv<16> csr_top_addr = "1111110111111110";
|
| 1057 |
|
|
sc_bv<16> pkt_top_addr = pkt.range(63,48);
|
| 1058 |
|
|
|
| 1059 |
|
|
if (pkt_top_addr == csr_top_addr
|
| 1060 |
|
|
/* No need to check this either as this is also tested in the entrance reordering
|
| 1061 |
|
|
&& pkt.range(39,35) == unit_id.read()
|
| 1062 |
|
|
&& request_getCompatOrIsoc(pkt) == false*/)
|
| 1063 |
|
|
return true;
|
| 1064 |
|
|
else
|
| 1065 |
|
|
return false;
|
| 1066 |
|
|
}
|
| 1067 |
|
|
|
| 1068 |
|
|
#ifndef SYSTEMC_SIM
|
| 1069 |
|
|
#include "../core_synth/synth_control_packet.cpp"
|
| 1070 |
|
|
#endif
|
| 1071 |
|
|
|
