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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_BASE_PKT_SEQ
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`define HMC_BASE_PKT_SEQ
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typedef enum {
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POSTED,
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ATOMIC,
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NON_POSTED,
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ALL_TYPES
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// MISC
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} request_class_e;
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class hmc_base_pkt_seq extends hmc_base_seq;
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rand int num_packets ;
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rand int pkts_per_req;
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rand request_class_e req_class;
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//-- delay constraints
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rand int min_flit_delay ;
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rand int max_flit_delay ;
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rand int min_packet_length ;
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rand int max_packet_length ;
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constraint delay_c {
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!(min_flit_delay > max_flit_delay);
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min_flit_delay >= 0;
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soft max_flit_delay <= 50;
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}
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constraint pkt_length_c {
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min_packet_length <= max_packet_length;
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min_packet_length >= 0;
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max_packet_length <= 9;
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}
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constraint num_packets_c {
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num_packets > 0;
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soft num_packets <= 50;
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}
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constraint pkts_per_req_c {
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pkts_per_req > 0;
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soft pkts_per_req <= 10;
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pkts_per_req <= num_packets;
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}
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`uvm_object_utils(hmc_base_pkt_seq)
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`uvm_declare_p_sequencer(vseqr)
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hmc_2_axi4_sequence #(.DATA_BYTES(`AXI4BYTES), .TUSER_WIDTH(`AXI4BYTES)) requests;
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function new(string name="hmc_base_pkt_seq");
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super.new(name);
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endfunction : new
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virtual task body();
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`uvm_info(get_type_name(), "starting...", UVM_HIGH)
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while (num_packets > 0) begin
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`uvm_create_on(requests, p_sequencer.axi4_req_seqr)
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if(req_class == POSTED)
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`uvm_info(get_type_name(),$psprintf("sending posted requests"), UVM_MEDIUM)
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else if (req_class == NON_POSTED)
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`uvm_info(get_type_name(),$psprintf("sending non_posted requests"), UVM_MEDIUM)
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else if (req_class == ATOMIC)
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`uvm_info(get_type_name(),$psprintf("sending atomic requests"), UVM_MEDIUM)
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else if (req_class == ALL)
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`uvm_info(get_type_name(),$psprintf("sending all requests"), UVM_MEDIUM)
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requests.num_packets = pkts_per_req;
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void'(requests.randomize() with {
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foreach(requests.hmc_items[i]) {
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requests.hmc_items[i].flit_delay inside {[min_flit_delay:max_flit_delay]};
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soft requests.hmc_items[i].packet_length inside {[min_packet_length:max_packet_length]};
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if(req_class == POSTED) {
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requests.hmc_items[i].command inside {
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HMC_POSTED_WRITE_16,
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HMC_POSTED_WRITE_32,
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HMC_POSTED_WRITE_48,
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HMC_POSTED_WRITE_64,
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HMC_POSTED_WRITE_80,
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HMC_POSTED_WRITE_96,
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HMC_POSTED_WRITE_112,
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HMC_POSTED_WRITE_128,
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HMC_POSTED_BIT_WRIT
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};
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}
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if(req_class == NON_POSTED) {
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requests.hmc_items[i].command inside {
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HMC_WRITE_16,
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HMC_WRITE_32,
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HMC_WRITE_48,
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HMC_WRITE_64,
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HMC_WRITE_80,
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HMC_WRITE_96,
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HMC_WRITE_112,
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HMC_WRITE_128,
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HMC_MODE_READ,
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HMC_READ_16,
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HMC_READ_32,
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HMC_READ_48,
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HMC_READ_64,
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HMC_READ_80,
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HMC_READ_96,
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HMC_READ_112,
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HMC_READ_128};
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}
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if(req_class == ATOMIC) {
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requests.hmc_items[i].command inside {
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//HMC_MODE_WRITE,
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HMC_BIT_WRITE,
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HMC_DUAL_8B_ADDI,
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HMC_SINGLE_16B_ADDI,
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HMC_POSTED_BIT_WRIT,
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HMC_POSTED_BIT_WRIT,
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HMC_POSTED_DUAL_8B_ADDI,
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HMC_POSTED_SINGLE_16B_ADDI
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// HMC_MODE_READ
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};
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}
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// if(req_class == MISC) {
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// requests.hmc_items[i].command inside {
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// // //HMC_MODE_WRITE
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// HMC_MODE_READ};
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// }
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}
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});
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num_packets -= pkts_per_req;
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`uvm_info(get_type_name(),$psprintf("Packets sent!"), UVM_MEDIUM)
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`uvm_send(requests)
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end
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endtask : body
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endclass : hmc_base_pkt_seq
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`endif
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