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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_TOKEN_HANDLER_SV
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`define HMC_TOKEN_HANDLER_SV
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class hmc_token_handler extends uvm_component;
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`uvm_analysis_imp_decl(_tokens)
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uvm_analysis_imp_tokens#(hmc_packet, hmc_token_handler) token_imp;
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`uvm_component_utils(hmc_token_handler)
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int available_tokens;
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function new(string name="hmc_token_handler", uvm_component parent);
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super.new(name,parent);
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token_imp = new ("token_imp",this);
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available_tokens = 0;
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endfunction : new
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function void reset();
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available_tokens = 0;
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endfunction : reset
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function void write_tokens(input hmc_packet packet);
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//`uvm_info(get_type_name(), $psprintf("write_tokens received %0d available_tokens = %0d", packet.return_token_count, available_tokens), UVM_HIGH)
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available_tokens = available_tokens + packet.return_token_count;
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endfunction : write_tokens
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function bit tokens_available(input int request);
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//`uvm_info(get_type_name(), $psprintf("tokens_available called for %0d available_tokens = %0d", request, available_tokens), UVM_HIGH)
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tokens_available = 0;
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if (available_tokens >= request) begin
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available_tokens = available_tokens - request;
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tokens_available = 1;
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end
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endfunction : tokens_available
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endclass : hmc_token_handler
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`endif // HMC_TOKEN_HANDLER_SV
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