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/*
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* .--------------. .----------------. .------------.
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* | .------------. | .--------------. | .----------. |
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* | | ____ ____ | | | ____ ____ | | | ______ | |
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* | ||_ || _|| | ||_ \ / _|| | | .' ___ || |
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* ___ _ __ ___ _ __ | | | |__| | | | | | \/ | | | |/ .' \_|| |
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* / _ \| '_ \ / _ \ '_ \ | | | __ | | | | | |\ /| | | | || | | |
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* (_) | |_) | __/ | | || | _| | | |_ | | | _| |_\/_| |_ | | |\ `.___.'\| |
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* \___/| .__/ \___|_| |_|| ||____||____|| | ||_____||_____|| | | `._____.'| |
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* | | | | | | | | | | | |
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* |_| | '------------' | '--------------' | '----------' |
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* '--------------' '----------------' '------------'
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*
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* openHMC - An Open Source Hybrid Memory Cube Controller
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* (C) Copyright 2014 Computer Architecture Group - University of Heidelberg
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* www.ziti.uni-heidelberg.de
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* B6, 26
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* 68159 Mannheim
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* Germany
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*
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* Contact: openhmc@ziti.uni-heidelberg.de
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* http://ra.ziti.uni-heidelberg.de/openhmc
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*
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* This source file is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This source file is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this source file. If not, see .
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*
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*
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*/
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`ifndef hmc_transaction_mon_sv
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`define hmc_transaction_mon_sv
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class hmc_transaction_mon extends uvm_monitor;
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hmc_packet hmc_buffer[$];
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bit [7:0] last_rrp = 0;
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bit [2:0] next_sequence_num;
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hmc_tag_mon tag_mon;
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uvm_active_passive_enum enable_tag_checking = UVM_ACTIVE;
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`uvm_analysis_imp_decl(_hmc_pkt)
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uvm_analysis_imp_hmc_pkt #(hmc_packet, hmc_transaction_mon) pkt_import;
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`uvm_analysis_imp_decl(_hmc_rrp)
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uvm_analysis_imp_hmc_rrp #(int, hmc_transaction_mon) rrp_import;
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uvm_analysis_port #(hmc_packet) transaction_finished_port;
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`uvm_component_utils_begin(hmc_transaction_mon)
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`uvm_field_enum(uvm_active_passive_enum, enable_tag_checking, UVM_DEFAULT)
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`uvm_component_utils_end
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function new ( string name="hmc_transaction_mon", uvm_component parent );
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super.new(name, parent);
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pkt_import = new("pkt_import",this);
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rrp_import = new("rrp_import",this);
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transaction_finished_port = new("transaction_finished_port", this);
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next_sequence_num = 3'b1;
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hmc_buffer = {};
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endfunction : new
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function void build_phase(uvm_phase phase);
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super.build_phase(phase);
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endfunction : build_phase
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function void write_hmc_pkt(input hmc_packet collected_packet);
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if (collected_packet.command != HMC_NULL
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&& collected_packet.command != HMC_IRTRY
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&& collected_packet.command != HMC_PRET
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)
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begin
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`uvm_info(get_type_name(), $psprintf("got packet with command %s and frp %d", collected_packet.command.name(),collected_packet.forward_retry_pointer), UVM_HIGH)
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hmc_buffer.push_back(collected_packet);
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end
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endfunction : write_hmc_pkt
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function void tag_handling (hmc_packet packet );
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if (packet.get_command_type() == HMC_WRITE_TYPE ||
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packet.get_command_type() == HMC_MISC_WRITE_TYPE ||
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packet.get_command_type() == HMC_MODE_READ_TYPE ||
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packet.get_command_type() == HMC_READ_TYPE)
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begin
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tag_mon.use_tag(packet.tag);
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end
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if (packet.get_command_type() == HMC_RESPONSE_TYPE &&
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packet.command != HMC_ERROR_RESPONSE &&
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!packet.poisoned)
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begin
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tag_mon.release_tag(packet.tag);
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end
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endfunction : tag_handling
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function void write_hmc_rrp(int rrp);
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if (rrp != last_rrp) begin
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hmc_packet current_packet;
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`uvm_info(get_type_name(),$psprintf("searching packet with FRP %d", rrp),UVM_HIGH)
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if (hmc_buffer.size()>0) begin
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do begin
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if (hmc_buffer.size()>0) begin
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current_packet = hmc_buffer.pop_front();
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if ((current_packet.command != HMC_TRET) ) begin
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`uvm_info(get_type_name(),$psprintf("send packet with command %s and frp %d", current_packet.command.name(),current_packet.forward_retry_pointer), UVM_HIGH)
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if (current_packet.poisoned)
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`uvm_info(get_type_name(), $psprintf("Packet was poisoned"), UVM_NONE)
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else begin
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if(enable_tag_checking == UVM_ACTIVE)
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tag_handling(current_packet);
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transaction_finished_port.write(current_packet);
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end
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end
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end
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else
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`uvm_fatal(get_type_name(),$psprintf("Cant find RRP %d in retry buffer", rrp))
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end while (current_packet.forward_retry_pointer != rrp);
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end else
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`uvm_info(get_type_name(), $psprintf("retry buffer is empty, can not find matching rrp (%0d)", rrp), UVM_HIGH)
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last_rrp = rrp;
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end
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endfunction : write_hmc_rrp
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function bit idle_check();
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if (enable_tag_checking == UVM_ACTIVE)
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return hmc_buffer.size()==0 && tag_mon.idle_check();
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else
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return hmc_buffer.size()==0;
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endfunction : idle_check
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function void check_phase(uvm_phase phase);
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hmc_packet pkt;
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if (hmc_buffer.size() >0) begin
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`uvm_info(get_type_name(),$psprintf("retry buffer is not empty!"),UVM_NONE)
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while(hmc_buffer.size()>0) begin
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pkt = hmc_buffer.pop_front();
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`uvm_info(get_type_name(),$psprintf("Open FRP: %d", pkt.forward_retry_pointer), UVM_NONE)
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end
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//-- print packet
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`uvm_fatal(get_type_name(),$psprintf("retry buffer is not empty!"))
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end
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endfunction : check_phase
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endclass : hmc_transaction_mon
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`endif // hmc_transaction_mon_sv
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