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// (C) 2001-2016 Intel Corporation. All rights reserved.
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// Your use of Intel Corporation's design tools, logic functions and other
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// software and tools, and its AMPP partner logic functions, and any output
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// files any of the foregoing (including device programming or simulation
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// files), and any associated documentation or information are expressly subject
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// to the terms and conditions of the Intel Program License Subscription
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// Agreement, Intel MegaCore Function License Agreement, or other applicable
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// license agreement, including, without limitation, that your use is for the
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// sole purpose of programming logic devices manufactured by Intel and sold by
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// Intel or its authorized distributors. Please refer to the applicable
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// agreement for further details.
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// $File: //acds/rel/16.1/ip/sopc/components/verification/altera_avalon_mm_monitor_bfm/altera_avalon_mm_monitor_transactions.sv $
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// $Revision: #1 $
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// $Date: 2016/08/07 $
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// $Author: swbranch $
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//-----------------------------------------------------------------------------
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// =head1 NAME
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// altera_avalon_mm_monitor_transactions
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// =head1 SYNOPSIS
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// Memory Mapped Avalon Bus Protocol Checker
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//-----------------------------------------------------------------------------
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// =head1 DESCRIPTION
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// This module implements Avalon MM protocol transaction recording.
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//-----------------------------------------------------------------------------
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`timescale 1ps / 1ps
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module altera_avalon_mm_monitor_transactions(
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clk,
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reset,
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tap
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);
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// =head1 PARAMETERS
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parameter AV_ADDRESS_W = 32; // address width
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parameter AV_SYMBOL_W = 8; // default symbol is byte
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parameter AV_NUMSYMBOLS = 4; // number of symbols per word
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parameter AV_BURSTCOUNT_W = 3; // burst port width
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// deprecated parameter
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parameter AV_WRITERESPONSE_W = 8;
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parameter AV_READRESPONSE_W = 8;
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parameter AV_CONSTANT_BURST_BEHAVIOR = 1; // Address, burstcount, transactionid and
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// avm_writeresponserequest need to be held constant
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// in burst transaction
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parameter AV_BURST_LINEWRAP = 0; // line wrapping addr is set to 1
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parameter AV_BURST_BNDR_ONLY = 0; // addr is multiple of burst size
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parameter REGISTER_WAITREQUEST = 0; // Waitrequest is registered at the slave
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parameter AV_MAX_PENDING_READS = 1; // maximum pending read transfer count
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parameter AV_MAX_PENDING_WRITES = 0; // maximum pending write transfer count
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parameter AV_FIX_READ_LATENCY = 0; // fixed read latency in cycles
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parameter USE_READ = 1; // use read port
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parameter USE_WRITE = 1; // use write port
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parameter USE_ADDRESS = 1; // use address port
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parameter USE_BYTE_ENABLE = 1; // use byteenable port
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parameter USE_BURSTCOUNT = 0; // use burstcount port
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parameter USE_READ_DATA = 1; // use readdata port
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parameter USE_READ_DATA_VALID = 1; // use readdatavalid port
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parameter USE_WRITE_DATA = 1; // use writedata port
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parameter USE_BEGIN_TRANSFER = 0; // use begintransfer port
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parameter USE_BEGIN_BURST_TRANSFER = 0; // use begintbursttransfer port
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parameter USE_WAIT_REQUEST = 1; // use waitrequest port
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parameter USE_ARBITERLOCK = 0; // Use arbiterlock pin on interface
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parameter USE_LOCK = 0; // Use lock pin on interface
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parameter USE_DEBUGACCESS = 0; // Use debugaccess pin on interface
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parameter USE_TRANSACTIONID = 0; // Use transactionid interface pin
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parameter USE_WRITERESPONSE = 0; // Use write response interface pins
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parameter USE_READRESPONSE = 0; // Use read response interface pins
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parameter USE_CLKEN = 0; // Use clken interface pins
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parameter AV_READ_WAIT_TIME = 0; // Fixed wait time cycles when
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parameter AV_WRITE_WAIT_TIME = 0; // USE_WAIT_REQUEST is 0
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localparam AV_DATA_W = AV_SYMBOL_W * AV_NUMSYMBOLS;
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localparam MAX_BURST_SIZE = USE_BURSTCOUNT ? 2**(lindex(AV_BURSTCOUNT_W)) : 1;
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localparam AV_TRANSACTIONID_W = 8;
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localparam INT_W = 32;
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localparam FIFO_MAX_LEVEL = 100;
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localparam FIFO_THRESHOLD = 50;
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parameter STORE_COMMAND = 1; // Store commands inside command queue
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parameter STORE_RESPONSE = 1; // Store responses inside response queue
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localparam TAP_W = 1 + // clken
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1 + // arbiterlock
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1 + // lock
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1 + // debugaccess
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((AV_TRANSACTIONID_W == 0)? 1:AV_TRANSACTIONID_W) + // transactionid
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((AV_TRANSACTIONID_W == 0)? 1:AV_TRANSACTIONID_W) + // readid
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((AV_TRANSACTIONID_W == 0)? 1:AV_TRANSACTIONID_W) + // writeid
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2 + // response
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1 + // writeresponserequest
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1 + // writeresponsevalid
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1 + // waitrequest
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1 + // readdatavalid
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((AV_DATA_W == 0)? 1:AV_DATA_W) + // readdata
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1 + // write
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1 + // read
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((AV_ADDRESS_W == 0)? 1:AV_ADDRESS_W) + // address
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((AV_NUMSYMBOLS == 0)? 1:AV_NUMSYMBOLS) + // byteenable
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((AV_BURSTCOUNT_W == 0)? 1:AV_BURSTCOUNT_W) + // burstcount
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1 + // beginbursttransfer
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1 + // begintransfer
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((AV_DATA_W == 0)? 1:AV_DATA_W); // writedata
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// =head1 PINS
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// =head2 Clock Interface
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input clk;
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input reset;
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// =head2 Avalon Monitor Interface
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// Interface consists of Avalon Memory-Mapped Interface.
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// =cut
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// =pod
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input [TAP_W-1:0] tap;
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// =cut
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function int lindex;
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// returns the left index for a vector having a declared width
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// when width is 0, then the left index is set to 0 rather than -1
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input [31:0] width;
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lindex = (width > 0) ? (width-1) : 0;
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endfunction
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//--------------------------------------------------------------------------
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// synthesis translate_off
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import verbosity_pkg::*;
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import avalon_mm_pkg::*;
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localparam VERSION = "16.1";
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typedef logic [lindex(AV_ADDRESS_W):0 ] AvalonAddress_t;
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typedef logic [lindex(AV_BURSTCOUNT_W):0 ] AvalonBurstCount_t;
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typedef logic [lindex(AV_TRANSACTIONID_W):0 ] AvalonTransactionId_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][lindex(AV_NUMSYMBOLS):0 ] AvalonByteEnable_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][lindex(AV_DATA_W):0 ] AvalonData_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][lindex(INT_W):0 ] AvalonIdle_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][lindex(INT_W):0 ] AvalonLatency_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][lindex(AV_READRESPONSE_W):0 ] AvalonReadResponse_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][lindex(AV_WRITERESPONSE_W):0] AvalonWriteResponse_t;
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typedef logic [lindex(MAX_BURST_SIZE):0][1:0] AvalonReadResponseStatus_t;
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typedef struct packed {
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Request_t request;
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AvalonAddress_t address;
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AvalonBurstCount_t burst_count;
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AvalonData_t data;
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AvalonByteEnable_t byte_enable;
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AvalonIdle_t idle;
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int burst_cycle;
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logic arbiterlock;
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logic lock;
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logic debugaccess;
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AvalonTransactionId_t transaction_id;
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time begin_time;
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} Command_t;
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typedef struct packed {
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Request_t request;
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AvalonAddress_t address;
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AvalonBurstCount_t burst_count;
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AvalonData_t data;
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AvalonByteEnable_t byte_enable;
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AvalonLatency_t wait_latency;
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AvalonLatency_t read_latency;
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int write_latency;
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int seq_count;
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int burst_size;
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AvalonTransactionId_t read_id;
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AvalonTransactionId_t write_id;
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AvalonReadResponseStatus_t read_response;
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AvalonResponseStatus_t write_response;
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time begin_time;
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time end_time;
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} Response_t;
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// unpack Avalon bus interface tap into individual port signals
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logic avs_waitrequest;
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logic avs_readdatavalid;
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logic [lindex(AV_DATA_W):0] avs_readdata;
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logic avs_write;
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logic avs_read;
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logic [lindex(AV_ADDRESS_W):0] avs_address;
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logic [lindex(AV_NUMSYMBOLS):0] avs_byteenable;
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logic [lindex(AV_BURSTCOUNT_W):0] avs_burstcount;
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logic avs_beginbursttransfer;
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logic avs_begintransfer;
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logic [lindex(AV_DATA_W):0] avs_writedata;
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logic avs_arbiterlock;
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logic avs_lock;
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logic avs_debugaccess;
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logic [lindex(AV_TRANSACTIONID_W):0] avs_transactionid;
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logic [lindex(AV_TRANSACTIONID_W):0] avs_readid;
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logic [lindex(AV_TRANSACTIONID_W):0] avs_writeid;
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logic [1:0] avs_response;
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logic avs_writeresponserequest;
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logic avs_writeresponsevalid;
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logic avs_clken;
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logic clken_register = 1'b1;
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string message = "*uninitialized*";
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int transaction_fifo_max = FIFO_MAX_LEVEL;
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int transaction_fifo_threshold = FIFO_THRESHOLD;
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int response_addr_offset = 0;
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int command_addr_offset = 0;
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int command_sequence_counter = 1;
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Command_t command_queue[$];
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Command_t current_command = '0;
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Command_t client_command = '0;
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Response_t write_response_queue[$];
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Response_t read_response_queue[$];
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Response_t new_response = '0;
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Response_t return_response = 'x;
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Response_t completed_command = 'x;
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Response_t completed_read_command = 'x;
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Response_t completed_write_command = 'x;
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Response_t issued_read_command_queue[$];
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Response_t issued_write_command_queue[$];
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AvalonResponseStatus_t null_response_status;
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int consolidate_write_burst_transactions = 1;
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int wait_time = 0;
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int write_burst_response_counter = 0;
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int write_latency = 0;
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int write_burst_command_counter = 0;
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int read_latency = 0;
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int command_waitrequested_start = 0;
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int read_response_burst_counter = 0;
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bit start_construct_complete_read_response = 0;
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bit start_construct_complete_write_response = 0;
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int clock_counter = 0;
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int current_time = 0;
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int clock_snapshot[$];
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AvalonBurstCount_t avs_burstcount_int;
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//--------------------------------------------------------------------------
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// =head1 Public Methods API
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// This section describes the public methods in the application programming
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// interface (API). In this case the application program is the test bench
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// which instantiates and controls and queries state of this component.
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// Test programs must only use these public access methods and events to
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// communicate with this BFM component. The API and the module pins
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// are the only interfaces in this component that are guaranteed to be
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// stable. The API will be maintained for the life of the product.
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// While we cannot prevent a test program from directly accessing internal
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// tasks, functions, or data private to the BFM, there is no guarantee that
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// these will be present in the future. In fact, it is best for the user
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// to assume that the underlying implementation of this component can
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// and will change.
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//--------------------------------------------------------------------------
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event signal_fatal_error; // public
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// Signal that a fatal error has occurred. Terminates simulation.
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event signal_transaction_fifo_threshold; // public
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// Signal that the transaction FIFO threshold level has been exceeded
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event signal_transaction_fifo_overflow; // public
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// Signal that the FIFO is full and further transactions are being dropped
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function automatic string get_version(); // public
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// Return component version as a string of three integers separated by
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// periods. For example, version 9.1 sp1 is encoded as "9.1.1".
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string ret_version = "10.1";
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return ret_version;
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endfunction
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function automatic void set_transaction_fifo_max( // public
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int level
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);
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// Set the maximum fullness level of the FIFO. The event
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// signal_transaction_fifo_max is triggered when this
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// level is exceeded.
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transaction_fifo_max = level;
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endfunction
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function automatic int get_transaction_fifo_max();
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// Get the maximum transaction FIFO depth.
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return transaction_fifo_max;
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endfunction
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function automatic void set_transaction_fifo_threshold( // public
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int level
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);
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// Set the threshold alert level of the FIFO. The event
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// signal_transaction_fifo_threshold is triggered when this
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// level is exceeded.
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transaction_fifo_threshold = level;
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endfunction
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function automatic int get_transaction_fifo_threshold();
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// Get the transaction FIFO threshold level.
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return transaction_fifo_threshold;
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endfunction
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//--------------------------------------------------------------------------
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// Command Transaction API
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//--------------------------------------------------------------------------
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event signal_command_received; // public
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// This event notifies the test bench that a command has been detected
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// on the Avalon port.
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// The testbench can respond with a set_interface_wait_time
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// call on receiving this event to dynamically back pressure the driving
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// Avalon master. Alternatively, wait_time which was previously set may
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// be used continuously for a set of transactions.
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function automatic void set_command_transaction_mode( // public
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int mode
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);
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// By default, write burst commands are consolidated into a single
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// command transaction containing the write data for all burst cycles
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// in that command. This mode is set when the mode argument equals 0.
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// When the mode argument is set to 1, the default is overridden and
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// write burst commands yield one command transaction per burst cycle.
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$sformat(message, "%m: method called arg0 %0d ", mode);
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print(VERBOSITY_DEBUG, message);
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consolidate_write_burst_transactions = (mode == 0) ? 1:0;
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|
|
endfunction
|
331 |
|
|
|
332 |
|
|
function automatic void pop_command(); // public
|
333 |
|
|
// Pop the command descriptor from the queue so that it can be
|
334 |
|
|
// queried with the get_command methods by the test bench.
|
335 |
|
|
$sformat(message, "%m: method called");
|
336 |
|
|
print(VERBOSITY_DEBUG, message);
|
337 |
|
|
|
338 |
|
|
client_command = command_queue.pop_back();
|
339 |
|
|
|
340 |
|
|
case(client_command.request)
|
341 |
|
|
REQ_READ: $sformat(message, "%m: read addr %0x",
|
342 |
|
|
client_command.address);
|
343 |
|
|
REQ_WRITE: $sformat(message,"%m: write addr %0x",
|
344 |
|
|
client_command.address);
|
345 |
|
|
REQ_IDLE: $sformat(message, "%m: idle transaction");
|
346 |
|
|
default: $sformat(message, "%m: illegal transaction");
|
347 |
|
|
endcase
|
348 |
|
|
print(VERBOSITY_DEBUG, message);
|
349 |
|
|
endfunction
|
350 |
|
|
|
351 |
|
|
function automatic int get_command_queue_size(); // public
|
352 |
|
|
// Query the command queue to determine number of pending commands
|
353 |
|
|
$sformat(message, "%m: method called");
|
354 |
|
|
print(VERBOSITY_DEBUG, message);
|
355 |
|
|
|
356 |
|
|
return command_queue.size();
|
357 |
|
|
endfunction
|
358 |
|
|
|
359 |
|
|
function automatic Request_t get_command_request(); // public
|
360 |
|
|
// Get the received command descriptor to determine command request type.
|
361 |
|
|
// A command type may be REQ_READ or REQ_WRITE. These type values
|
362 |
|
|
// are defined in the enumerated type called Request_t which is
|
363 |
|
|
// imported with the package named avalon_mm_pkg.
|
364 |
|
|
$sformat(message, "%m: method called");
|
365 |
|
|
print(VERBOSITY_DEBUG, message);
|
366 |
|
|
|
367 |
|
|
return client_command.request;
|
368 |
|
|
endfunction
|
369 |
|
|
|
370 |
|
|
function automatic logic [lindex(AV_ADDRESS_W):0] get_command_address(); // public
|
371 |
|
|
// Query the received command descriptor for the transaction address.
|
372 |
|
|
$sformat(message, "%m: method called");
|
373 |
|
|
print(VERBOSITY_DEBUG, message);
|
374 |
|
|
|
375 |
|
|
return client_command.address;
|
376 |
|
|
endfunction
|
377 |
|
|
|
378 |
|
|
function automatic [lindex(AV_BURSTCOUNT_W):0] get_command_burst_count();// public
|
379 |
|
|
// Query the received command descriptor for the transaction burst count.
|
380 |
|
|
$sformat(message, "%m: method called");
|
381 |
|
|
print(VERBOSITY_DEBUG, message);
|
382 |
|
|
|
383 |
|
|
return client_command.burst_count;
|
384 |
|
|
endfunction
|
385 |
|
|
|
386 |
|
|
function automatic logic [AV_DATA_W-1:0] get_command_data( // public
|
387 |
|
|
int index
|
388 |
|
|
);
|
389 |
|
|
// Query the received command descriptor for the transaction write data.
|
390 |
|
|
// The burst commands with burst count greater than 1, the index
|
391 |
|
|
// selects the write data cycle.
|
392 |
|
|
$sformat(message, "%m: method called arg0 %0d", index);
|
393 |
|
|
print(VERBOSITY_DEBUG, message);
|
394 |
|
|
|
395 |
|
|
if (__check_transaction_index(index))
|
396 |
|
|
return client_command.data[index];
|
397 |
|
|
else
|
398 |
|
|
return('x);
|
399 |
|
|
endfunction
|
400 |
|
|
|
401 |
|
|
function automatic logic [AV_NUMSYMBOLS-1:0] get_command_byte_enable(// public
|
402 |
|
|
int index
|
403 |
|
|
);
|
404 |
|
|
// Query the received command descriptor for the transaction byte enable.
|
405 |
|
|
// The burst commands with burst count greater than 1, the index
|
406 |
|
|
// selects the data cycle.
|
407 |
|
|
$sformat(message, "%m: method called arg0 %0d", index);
|
408 |
|
|
print(VERBOSITY_DEBUG, message);
|
409 |
|
|
|
410 |
|
|
if (__check_transaction_index(index))
|
411 |
|
|
return client_command.byte_enable[index];
|
412 |
|
|
else
|
413 |
|
|
return('x);
|
414 |
|
|
endfunction
|
415 |
|
|
|
416 |
|
|
function automatic int get_command_burst_cycle(); // public
|
417 |
|
|
// Write burst commands are received and processed by the slave BFM as
|
418 |
|
|
// a sequence of discrete commands. The number of commands corresponds
|
419 |
|
|
// to the burst count. A separate command descriptor is constructed for
|
420 |
|
|
// each write burst cycle, corresponding to a partially completed burst.
|
421 |
|
|
// Write data is incrementally added to each new descriptor in each burst
|
422 |
|
|
// cycle until the command descriptor in final burst cycle contains
|
423 |
|
|
// the full burst command data array.
|
424 |
|
|
// The burst cycle field returned by this method tells the test bench
|
425 |
|
|
// which burst cycle was active when this descriptor was constructed.
|
426 |
|
|
// This facility enables the testbench to query partially completed
|
427 |
|
|
// write burst operations. In other words, the testbench can query
|
428 |
|
|
// the write data word on each burst cycle as it arrives and begin to
|
429 |
|
|
// process it immediately rather than waiting until the entire burst
|
430 |
|
|
// has been received. This makes it possible to perform pipelined write
|
431 |
|
|
// burst processing in the test bench.
|
432 |
|
|
$sformat(message, "%m: method called");
|
433 |
|
|
print(VERBOSITY_DEBUG, message);
|
434 |
|
|
|
435 |
|
|
return client_command.burst_cycle;
|
436 |
|
|
endfunction
|
437 |
|
|
|
438 |
|
|
function automatic logic get_command_arbiterlock(); // public
|
439 |
|
|
// Query the received command descriptor for the transaction arbiterlock.
|
440 |
|
|
$sformat(message, "%m: method called");
|
441 |
|
|
print(VERBOSITY_DEBUG, message);
|
442 |
|
|
return client_command.arbiterlock;
|
443 |
|
|
endfunction
|
444 |
|
|
|
445 |
|
|
function automatic logic get_command_lock(); // public
|
446 |
|
|
// Query the received command descriptor for the transaction lock.
|
447 |
|
|
$sformat(message, "%m: method called");
|
448 |
|
|
print(VERBOSITY_DEBUG, message);
|
449 |
|
|
return client_command.lock;
|
450 |
|
|
endfunction
|
451 |
|
|
|
452 |
|
|
function automatic logic get_command_debugaccess(); // public
|
453 |
|
|
// Query the received command descriptor for the transaction debugaccess.
|
454 |
|
|
$sformat(message, "%m: method called");
|
455 |
|
|
print(VERBOSITY_DEBUG, message);
|
456 |
|
|
return client_command.debugaccess;
|
457 |
|
|
endfunction
|
458 |
|
|
|
459 |
|
|
function automatic logic [AV_TRANSACTIONID_W-1:0] get_command_transaction_id(); // public
|
460 |
|
|
// Query the received command descriptor for the transaction ID.
|
461 |
|
|
$sformat(message, "%m: method called");
|
462 |
|
|
print(VERBOSITY_DEBUG, message);
|
463 |
|
|
|
464 |
|
|
return client_command.transaction_id;
|
465 |
|
|
endfunction
|
466 |
|
|
|
467 |
|
|
function automatic logic [AV_TRANSACTIONID_W-1:0] get_command_write_response_request(); // public
|
468 |
|
|
$sformat(message, "%m: This API is no longer supported.");
|
469 |
|
|
print(VERBOSITY_DEBUG, message);
|
470 |
|
|
|
471 |
|
|
return 0;
|
472 |
|
|
endfunction
|
473 |
|
|
|
474 |
|
|
function automatic time get_command_begin_time(); // public
|
475 |
|
|
// Returns the begin time of the transaction in the response descriptor that
|
476 |
|
|
// has been popped from the response queue.
|
477 |
|
|
$sformat(message, "%m: method called");
|
478 |
|
|
print(VERBOSITY_DEBUG, message);
|
479 |
|
|
|
480 |
|
|
return client_command.begin_time;
|
481 |
|
|
endfunction
|
482 |
|
|
|
483 |
|
|
|
484 |
|
|
//--------------------------------------------------------------------------
|
485 |
|
|
// Response Transaction API
|
486 |
|
|
//--------------------------------------------------------------------------
|
487 |
|
|
event signal_read_response_complete; // public
|
488 |
|
|
// This event signals that the read response has been received and
|
489 |
|
|
// pushed into the response queue.
|
490 |
|
|
|
491 |
|
|
event signal_write_response_complete; // public
|
492 |
|
|
// This event signals that the write response has been received and
|
493 |
|
|
// pushed into the response queue.
|
494 |
|
|
|
495 |
|
|
event signal_response_complete; // public
|
496 |
|
|
// This event will fire when either signal_read_response_complete
|
497 |
|
|
// or signal_write_response_complete fires and indicates that either
|
498 |
|
|
// a read or a write response has been received and pushed into the
|
499 |
|
|
// response queue.
|
500 |
|
|
|
501 |
|
|
function automatic int get_command_issued_queue_size(); // public
|
502 |
|
|
// Query the issued command queue to determine the number of
|
503 |
|
|
// commands that have been driven to the system interconnect
|
504 |
|
|
// fabric, but have not yet completed.
|
505 |
|
|
$sformat(message, "%m: method called");
|
506 |
|
|
print(VERBOSITY_DEBUG, message);
|
507 |
|
|
|
508 |
|
|
return (issued_read_command_queue.size() + issued_write_command_queue.size());
|
509 |
|
|
endfunction
|
510 |
|
|
|
511 |
|
|
function automatic logic [lindex(AV_ADDRESS_W):0] get_response_address(); // public
|
512 |
|
|
// Returns the transaction address in the response descriptor that
|
513 |
|
|
// has been popped from the response queue.
|
514 |
|
|
$sformat(message, "%m: called");
|
515 |
|
|
print(VERBOSITY_DEBUG, message);
|
516 |
|
|
|
517 |
|
|
return return_response.address;
|
518 |
|
|
endfunction
|
519 |
|
|
|
520 |
|
|
function automatic logic [AV_NUMSYMBOLS-1:0] get_response_byte_enable(// public
|
521 |
|
|
int index
|
522 |
|
|
);
|
523 |
|
|
// Returns the value of the byte enables in the response descriptor
|
524 |
|
|
// that has been popped from the response queue. Each cycle of a
|
525 |
|
|
// burst response is addressed individually by the specified index.
|
526 |
|
|
$sformat(message, "%m: method called arg0 %0d", index);
|
527 |
|
|
print(VERBOSITY_DEBUG, message);
|
528 |
|
|
|
529 |
|
|
if (__check_transaction_index(index))
|
530 |
|
|
return return_response.byte_enable[index];
|
531 |
|
|
else
|
532 |
|
|
return 'x;
|
533 |
|
|
endfunction
|
534 |
|
|
|
535 |
|
|
function automatic logic [lindex(AV_BURSTCOUNT_W):0] get_response_burst_size();// public
|
536 |
|
|
// Returns the size of the response transaction burst in the
|
537 |
|
|
// response descriptor that has been popped from the response queue.
|
538 |
|
|
$sformat(message, "%m: method called");
|
539 |
|
|
print(VERBOSITY_DEBUG, message);
|
540 |
|
|
|
541 |
|
|
return return_response.burst_count;
|
542 |
|
|
endfunction
|
543 |
|
|
|
544 |
|
|
function automatic logic [AV_DATA_W-1:0] get_response_data( //public
|
545 |
|
|
int index
|
546 |
|
|
);
|
547 |
|
|
// Returns the transaction data in the response descriptor
|
548 |
|
|
// that has been popped from the response queue. Each cycle in a
|
549 |
|
|
// burst response is addressed individually by the specified index.
|
550 |
|
|
// In the case of read responses, the data is the data captured on
|
551 |
|
|
// the avs_readdata interface pin. In the case of write responses,
|
552 |
|
|
// the data on the driven avs_writedata pin is captured and
|
553 |
|
|
// reflected here.
|
554 |
|
|
$sformat(message, "%m: method called arg0 %0d", index);
|
555 |
|
|
print(VERBOSITY_DEBUG, message);
|
556 |
|
|
|
557 |
|
|
if (__check_transaction_index(index))
|
558 |
|
|
return return_response.data[index];
|
559 |
|
|
else
|
560 |
|
|
return 'x;
|
561 |
|
|
endfunction
|
562 |
|
|
|
563 |
|
|
function automatic int get_response_latency( // public
|
564 |
|
|
int index = 0
|
565 |
|
|
);
|
566 |
|
|
// Returns the transaction read latency in the response descriptor
|
567 |
|
|
// that has been popped from the response queue. Each cycle in a
|
568 |
|
|
// burst read has its own latency entry. For write transaction
|
569 |
|
|
// responses the returned value will always be 0.
|
570 |
|
|
$sformat(message, "%m: method called arg0 %0d", index);
|
571 |
|
|
print(VERBOSITY_DEBUG, message);
|
572 |
|
|
|
573 |
|
|
if (return_response.request == REQ_READ)
|
574 |
|
|
if (__check_transaction_index(index)) begin
|
575 |
|
|
return return_response.read_latency[index];
|
576 |
|
|
end else begin
|
577 |
|
|
return -1;
|
578 |
|
|
end
|
579 |
|
|
else if (return_response.request == REQ_WRITE) begin
|
580 |
|
|
if (index > 0) begin
|
581 |
|
|
$sformat(message, "%m: Write response does not require burst index. Index value will be ignored");
|
582 |
|
|
print(VERBOSITY_WARNING, message);
|
583 |
|
|
end
|
584 |
|
|
return return_response.write_latency;
|
585 |
|
|
end else begin
|
586 |
|
|
return -1;
|
587 |
|
|
end
|
588 |
|
|
endfunction
|
589 |
|
|
|
590 |
|
|
function automatic time get_response_begin_time(); // public
|
591 |
|
|
// Returns the begin time of the transaction in the response descriptor that
|
592 |
|
|
// has been popped from the response queue.
|
593 |
|
|
$sformat(message, "%m: method called");
|
594 |
|
|
print(VERBOSITY_DEBUG, message);
|
595 |
|
|
|
596 |
|
|
return return_response.begin_time;
|
597 |
|
|
endfunction
|
598 |
|
|
|
599 |
|
|
function automatic time get_response_end_time(); // public
|
600 |
|
|
// Returns the begin time of the transaction in the response descriptor that
|
601 |
|
|
// has been popped from the response queue.
|
602 |
|
|
$sformat(message, "%m: method called. Returning %0t", return_response.end_time);
|
603 |
|
|
print(VERBOSITY_DEBUG, message);
|
604 |
|
|
|
605 |
|
|
return return_response.end_time;
|
606 |
|
|
endfunction
|
607 |
|
|
|
608 |
|
|
function automatic Request_t get_response_request(); // public
|
609 |
|
|
// Returns the transaction command type in the response descriptor
|
610 |
|
|
// that has been popped from the response queue.
|
611 |
|
|
$sformat(message, "%m: method called");
|
612 |
|
|
print(VERBOSITY_DEBUG, message);
|
613 |
|
|
|
614 |
|
|
return return_response.request;
|
615 |
|
|
endfunction
|
616 |
|
|
|
617 |
|
|
function automatic int get_response_queue_size(); // public
|
618 |
|
|
// Queries the write and read response queue to determine
|
619 |
|
|
// number of response descriptors currently stored in the BFM.
|
620 |
|
|
// This is the number of responses the test program can immediately
|
621 |
|
|
// pop off the response queue for further processing.
|
622 |
|
|
$sformat(message, "%m: method called");
|
623 |
|
|
print(VERBOSITY_DEBUG, message);
|
624 |
|
|
|
625 |
|
|
return read_response_queue.size() + write_response_queue.size();
|
626 |
|
|
endfunction
|
627 |
|
|
|
628 |
|
|
function automatic int get_response_wait_time( // public
|
629 |
|
|
int index
|
630 |
|
|
);
|
631 |
|
|
// Returns the wait time for a transaction in the response descriptor
|
632 |
|
|
// that has been popped from the response queue. Each cycle in a burst
|
633 |
|
|
// has its own wait time entry.
|
634 |
|
|
$sformat(message, "%m: method called arg0 %0d", index);
|
635 |
|
|
print(VERBOSITY_DEBUG, message);
|
636 |
|
|
|
637 |
|
|
if (__check_transaction_index(index))
|
638 |
|
|
return return_response.wait_latency[index];
|
639 |
|
|
else
|
640 |
|
|
return -1;
|
641 |
|
|
endfunction
|
642 |
|
|
|
643 |
|
|
function automatic void pop_response(); // public
|
644 |
|
|
// Pop the transaction descriptor from the queue so that it can be
|
645 |
|
|
// queried with the get_response methods by the test bench.
|
646 |
|
|
|
647 |
|
|
int read_queue_head_seq_count = read_response_queue[$].seq_count;
|
648 |
|
|
int write_queue_head_seq_count = write_response_queue[$].seq_count;
|
649 |
|
|
|
650 |
|
|
$sformat(message, "%m: method called");
|
651 |
|
|
print(VERBOSITY_DEBUG, message);
|
652 |
|
|
|
653 |
|
|
if (read_queue_head_seq_count == write_queue_head_seq_count) begin
|
654 |
|
|
$sformat(message,
|
655 |
|
|
"%m: Identical sequence count in read and write response queues");
|
656 |
|
|
print(VERBOSITY_ERROR, message);
|
657 |
|
|
-> signal_fatal_error;
|
658 |
|
|
return;
|
659 |
|
|
end else begin
|
660 |
|
|
if ((read_response_queue.size() > 0) &&
|
661 |
|
|
((read_queue_head_seq_count < write_queue_head_seq_count) ||
|
662 |
|
|
(write_queue_head_seq_count == 0))) begin
|
663 |
|
|
|
664 |
|
|
return_response = read_response_queue.pop_back();
|
665 |
|
|
$sformat(message,"%m: Pop read response");
|
666 |
|
|
print(VERBOSITY_DEBUG, message);
|
667 |
|
|
end else if (write_response_queue.size() > 0) begin
|
668 |
|
|
return_response = write_response_queue.pop_back();
|
669 |
|
|
$sformat(message,"%m: Pop write response");
|
670 |
|
|
print(VERBOSITY_DEBUG, message);
|
671 |
|
|
end else begin
|
672 |
|
|
$sformat(message,"%m: Failed to pop from response queues");
|
673 |
|
|
print(VERBOSITY_ERROR, message);
|
674 |
|
|
-> signal_fatal_error;
|
675 |
|
|
return;
|
676 |
|
|
end
|
677 |
|
|
end
|
678 |
|
|
|
679 |
|
|
if (return_response.seq_count == 0) begin
|
680 |
|
|
// sequence counter is initialized to 1
|
681 |
|
|
$sformat(message,"%m: Response transaction has sequence count of 0");
|
682 |
|
|
print(VERBOSITY_WARNING, message);
|
683 |
|
|
end
|
684 |
|
|
|
685 |
|
|
__print_response("Master Response", return_response);///foo
|
686 |
|
|
|
687 |
|
|
endfunction
|
688 |
|
|
|
689 |
|
|
function automatic AvalonResponseStatus_t get_read_response_status( // public
|
690 |
|
|
int index
|
691 |
|
|
);
|
692 |
|
|
// Returns the transaction response status in the read response
|
693 |
|
|
// descriptor that has been popped from the response queue.
|
694 |
|
|
// If API is called when read response is not enabled, it will
|
695 |
|
|
// return default value i.e. OKAY
|
696 |
|
|
$sformat(message, "%m: called");
|
697 |
|
|
print(VERBOSITY_DEBUG, message);
|
698 |
|
|
|
699 |
|
|
if (return_response.request == REQ_READ) begin
|
700 |
|
|
if (USE_READRESPONSE == 1) begin
|
701 |
|
|
return AvalonResponseStatus_t'(return_response.read_response[index]);
|
702 |
|
|
end else begin
|
703 |
|
|
$sformat(message, "%m: Read response is disabled, returning default value");
|
704 |
|
|
print(VERBOSITY_WARNING, message);
|
705 |
|
|
return null_response_status;
|
706 |
|
|
end
|
707 |
|
|
end else begin
|
708 |
|
|
$sformat(message, "%m: Read response queried on write response transaction");
|
709 |
|
|
print(VERBOSITY_WARNING, message);
|
710 |
|
|
return null_response_status;
|
711 |
|
|
end
|
712 |
|
|
endfunction
|
713 |
|
|
|
714 |
|
|
function automatic AvalonReadResponse_t get_response_read_response( // public
|
715 |
|
|
int index
|
716 |
|
|
);
|
717 |
|
|
// API is no longer supported
|
718 |
|
|
$sformat(message, "%m: API is not longer supported. Please use get_read_response_status API");
|
719 |
|
|
print(VERBOSITY_WARNING, message);
|
720 |
|
|
|
721 |
|
|
return '0;
|
722 |
|
|
endfunction
|
723 |
|
|
|
724 |
|
|
function automatic AvalonWriteResponse_t get_response_write_response( // public
|
725 |
|
|
int index
|
726 |
|
|
);
|
727 |
|
|
// API is no longer supported
|
728 |
|
|
$sformat(message, "%m: API is not longer supported. Please use get_write_response_status API");
|
729 |
|
|
print(VERBOSITY_WARNING, message);
|
730 |
|
|
|
731 |
|
|
return '0;
|
732 |
|
|
endfunction
|
733 |
|
|
|
734 |
|
|
function automatic AvalonTransactionId_t get_response_read_id(); // public
|
735 |
|
|
// Returns the read id of transaction in the response descriptor that
|
736 |
|
|
// has been popped from the response queue.
|
737 |
|
|
$sformat(message, "%m: called");
|
738 |
|
|
print(VERBOSITY_DEBUG, message);
|
739 |
|
|
if (return_response.request == REQ_WRITE) begin
|
740 |
|
|
$sformat(message, "%m: Read response queried on write response transaction");
|
741 |
|
|
print(VERBOSITY_WARNING, message);
|
742 |
|
|
end
|
743 |
|
|
return return_response.read_id;
|
744 |
|
|
endfunction
|
745 |
|
|
|
746 |
|
|
function automatic AvalonResponseStatus_t get_write_response_status(); // public
|
747 |
|
|
// Returns the transaction response status in the write response
|
748 |
|
|
// descriptor that has been popped from the response queue.
|
749 |
|
|
// If API is called when write response is not enabled or enabled but
|
750 |
|
|
// write response not requested, it will return default value i.e. OKAY
|
751 |
|
|
$sformat(message, "%m: called");
|
752 |
|
|
print(VERBOSITY_DEBUG, message);
|
753 |
|
|
if (return_response.request == REQ_WRITE) begin
|
754 |
|
|
if (USE_WRITERESPONSE == 1) begin
|
755 |
|
|
return return_response.write_response;
|
756 |
|
|
end else begin
|
757 |
|
|
$sformat(message,
|
758 |
|
|
"%m: Write response is disabled or enabled but no write response requested, returning default value");
|
759 |
|
|
print(VERBOSITY_WARNING, message);
|
760 |
|
|
return null_response_status;
|
761 |
|
|
end
|
762 |
|
|
end else begin
|
763 |
|
|
$sformat(message, "%m: Write response queried on read response transaction");
|
764 |
|
|
print(VERBOSITY_WARNING, message);
|
765 |
|
|
return null_response_status;
|
766 |
|
|
end
|
767 |
|
|
endfunction
|
768 |
|
|
|
769 |
|
|
function automatic AvalonTransactionId_t get_response_write_id(); // public
|
770 |
|
|
// Returns the write id of transaction in the response descriptor that
|
771 |
|
|
// has been popped from the response queue.
|
772 |
|
|
$sformat(message, "%m: called");
|
773 |
|
|
print(VERBOSITY_DEBUG, message);
|
774 |
|
|
if (return_response.request == REQ_READ) begin
|
775 |
|
|
$sformat(message, "%m: Write response queried on read response transaction");
|
776 |
|
|
print(VERBOSITY_WARNING, message);
|
777 |
|
|
end
|
778 |
|
|
return return_response.write_id;
|
779 |
|
|
endfunction
|
780 |
|
|
|
781 |
|
|
function automatic logic get_clken(); // public
|
782 |
|
|
// Return the clken status
|
783 |
|
|
$sformat(message, "%m: method called");
|
784 |
|
|
print(VERBOSITY_DEBUG, message);
|
785 |
|
|
return clken_register;
|
786 |
|
|
endfunction
|
787 |
|
|
|
788 |
|
|
function automatic int get_write_response_queue_size(); // public
|
789 |
|
|
// Queries the write response queue to determine
|
790 |
|
|
// number of response descriptors currently stored in the BFM.
|
791 |
|
|
// This is the number of responses the test program can immediately
|
792 |
|
|
// pop off the response queue for further processing.
|
793 |
|
|
|
794 |
|
|
$sformat(message, "%m: method called");
|
795 |
|
|
print(VERBOSITY_DEBUG, message);
|
796 |
|
|
|
797 |
|
|
return write_response_queue.size();
|
798 |
|
|
endfunction
|
799 |
|
|
|
800 |
|
|
function automatic int get_read_response_queue_size(); // public
|
801 |
|
|
// Queries the read response queue to determine
|
802 |
|
|
// number of response descriptors currently stored in the BFM.
|
803 |
|
|
// This is the number of responses the test program can immediately
|
804 |
|
|
// pop off the response queue for further processing.
|
805 |
|
|
|
806 |
|
|
$sformat(message, "%m: method called");
|
807 |
|
|
print(VERBOSITY_DEBUG, message);
|
808 |
|
|
|
809 |
|
|
return read_response_queue.size();
|
810 |
|
|
endfunction
|
811 |
|
|
|
812 |
|
|
task automatic init(); // public
|
813 |
|
|
// Initializes the counters and clear the queue.
|
814 |
|
|
$sformat(message, "%m: method called");
|
815 |
|
|
print(VERBOSITY_DEBUG, message);
|
816 |
|
|
|
817 |
|
|
__init_descriptors();
|
818 |
|
|
__init_queues();
|
819 |
|
|
endtask
|
820 |
|
|
|
821 |
|
|
// =cut
|
822 |
|
|
//--------------------------------------------------------------------------
|
823 |
|
|
// Private Methods
|
824 |
|
|
// Note that private methods and events are prefixed with '__'
|
825 |
|
|
//--------------------------------------------------------------------------
|
826 |
|
|
|
827 |
|
|
event __command_issued;
|
828 |
|
|
|
829 |
|
|
function automatic int __check_transaction_index(int index);
|
830 |
|
|
if (index > lindex(MAX_BURST_SIZE)) begin
|
831 |
|
|
$sformat(message,"%m: Cycle index %0d exceeds MAX_BURST_SIZE-1 %0d",
|
832 |
|
|
index, lindex(MAX_BURST_SIZE));
|
833 |
|
|
print(VERBOSITY_ERROR, message);
|
834 |
|
|
->signal_fatal_error;
|
835 |
|
|
return 0;
|
836 |
|
|
end else begin
|
837 |
|
|
return 1;
|
838 |
|
|
end
|
839 |
|
|
endfunction
|
840 |
|
|
|
841 |
|
|
function automatic void __print_response(string text,
|
842 |
|
|
Response_t response);
|
843 |
|
|
string message = "";
|
844 |
|
|
print_divider(VERBOSITY_DEBUG);
|
845 |
|
|
$sformat(message, "%m: %s", text);
|
846 |
|
|
print(VERBOSITY_DEBUG, message);
|
847 |
|
|
$sformat(message, "Request: %s", __request_str(response.request));
|
848 |
|
|
print(VERBOSITY_DEBUG, message);
|
849 |
|
|
$sformat(message, "Address: %0x", response.address);
|
850 |
|
|
print(VERBOSITY_DEBUG, message);
|
851 |
|
|
$sformat(message, "Burst Count: %0x", response.burst_count);
|
852 |
|
|
print(VERBOSITY_DEBUG, message);
|
853 |
|
|
|
854 |
|
|
for (int i=0; i
|
855 |
|
|
if (response.request == REQ_WRITE) begin
|
856 |
|
|
$sformat(message, " index: %0d wait: %0d",
|
857 |
|
|
i, response.wait_latency[i]);
|
858 |
|
|
end else if (response.request == REQ_READ) begin
|
859 |
|
|
$sformat(message,
|
860 |
|
|
" index: %0d data: %0x wait: %0d read latency: %0d",
|
861 |
|
|
i, response.data[i],
|
862 |
|
|
response.wait_latency[i], response.read_latency[i]);
|
863 |
|
|
end else begin
|
864 |
|
|
$sformat(message, " Invalid request field");
|
865 |
|
|
end
|
866 |
|
|
print(VERBOSITY_DEBUG, message);
|
867 |
|
|
end
|
868 |
|
|
endfunction
|
869 |
|
|
|
870 |
|
|
function automatic void __init_descriptors();
|
871 |
|
|
new_response = '0;
|
872 |
|
|
current_command = '0;
|
873 |
|
|
return_response = '0;
|
874 |
|
|
completed_command = '0;
|
875 |
|
|
command_addr_offset = 0;
|
876 |
|
|
response_addr_offset = 0;
|
877 |
|
|
client_command = '0;
|
878 |
|
|
return_response = '0;
|
879 |
|
|
command_sequence_counter = 1;
|
880 |
|
|
wait_time = 0;
|
881 |
|
|
write_burst_response_counter = 0;
|
882 |
|
|
write_latency = 0;
|
883 |
|
|
write_burst_command_counter = 0;
|
884 |
|
|
read_latency = 0;
|
885 |
|
|
command_waitrequested_start = 0;
|
886 |
|
|
start_construct_complete_read_response = 0;
|
887 |
|
|
start_construct_complete_write_response = 0;
|
888 |
|
|
read_response_burst_counter = 0;
|
889 |
|
|
endfunction
|
890 |
|
|
|
891 |
|
|
function automatic void __init_queues();
|
892 |
|
|
issued_read_command_queue = {};
|
893 |
|
|
issued_write_command_queue = {};
|
894 |
|
|
read_response_queue = {};
|
895 |
|
|
write_response_queue = {};
|
896 |
|
|
command_queue = {};
|
897 |
|
|
endfunction
|
898 |
|
|
|
899 |
|
|
function automatic string __request_str(Request_t request);
|
900 |
|
|
case(request)
|
901 |
|
|
REQ_READ: return "Read";
|
902 |
|
|
REQ_WRITE: return "Write";
|
903 |
|
|
REQ_IDLE: return "Idle";
|
904 |
|
|
endcase
|
905 |
|
|
endfunction
|
906 |
|
|
|
907 |
|
|
//--------------------------------------------------------------------------
|
908 |
|
|
// Local Machinery
|
909 |
|
|
//--------------------------------------------------------------------------
|
910 |
|
|
always @(signal_fatal_error) abort_simulation();
|
911 |
|
|
|
912 |
|
|
always @(*) begin
|
913 |
|
|
{
|
914 |
|
|
avs_clken,
|
915 |
|
|
avs_arbiterlock,
|
916 |
|
|
avs_lock,
|
917 |
|
|
avs_debugaccess,
|
918 |
|
|
avs_transactionid,
|
919 |
|
|
avs_readid,
|
920 |
|
|
avs_writeid,
|
921 |
|
|
avs_response,
|
922 |
|
|
avs_writeresponserequest,
|
923 |
|
|
avs_writeresponsevalid,
|
924 |
|
|
|
925 |
|
|
avs_waitrequest,
|
926 |
|
|
avs_readdatavalid,
|
927 |
|
|
avs_readdata,
|
928 |
|
|
|
929 |
|
|
avs_write,
|
930 |
|
|
avs_read,
|
931 |
|
|
avs_address,
|
932 |
|
|
avs_byteenable,
|
933 |
|
|
avs_burstcount,
|
934 |
|
|
avs_beginbursttransfer,
|
935 |
|
|
avs_begintransfer,
|
936 |
|
|
avs_writedata
|
937 |
|
|
} <= tap;
|
938 |
|
|
|
939 |
|
|
end
|
940 |
|
|
|
941 |
|
|
assign avs_burstcount_int = (USE_BURSTCOUNT ? avs_burstcount : 'd1);
|
942 |
|
|
|
943 |
|
|
//-----------------------------------------------------------------------------
|
944 |
|
|
// This two block monitoring the response transaction
|
945 |
|
|
//-----------------------------------------------------------------------------
|
946 |
|
|
always @(posedge clk or posedge reset) begin
|
947 |
|
|
clock_counter = clock_counter +1;
|
948 |
|
|
if (reset) begin
|
949 |
|
|
init();
|
950 |
|
|
end else begin
|
951 |
|
|
if (!USE_CLKEN || avs_clken == 1) begin
|
952 |
|
|
sampled_response();
|
953 |
|
|
end
|
954 |
|
|
end
|
955 |
|
|
end
|
956 |
|
|
|
957 |
|
|
always @(posedge clk or posedge reset) begin
|
958 |
|
|
if (reset) begin
|
959 |
|
|
init();
|
960 |
|
|
end else begin
|
961 |
|
|
if (!USE_CLKEN || avs_clken == 1) begin
|
962 |
|
|
if ((get_command_issued_queue_size() == 0) &&
|
963 |
|
|
(start_construct_complete_write_response == 0) &&
|
964 |
|
|
start_construct_complete_read_response == 0) begin
|
965 |
|
|
@__command_issued;
|
966 |
|
|
end
|
967 |
|
|
|
968 |
|
|
if (issued_write_command_queue.size() > 0) begin
|
969 |
|
|
if (start_construct_complete_write_response == 0) begin
|
970 |
|
|
completed_write_command = issued_write_command_queue.pop_back();
|
971 |
|
|
start_construct_complete_write_response = 1;
|
972 |
|
|
end
|
973 |
|
|
end
|
974 |
|
|
|
975 |
|
|
if (issued_read_command_queue.size() > 0) begin
|
976 |
|
|
if (read_response_burst_counter == 0 &&
|
977 |
|
|
start_construct_complete_read_response == 0) begin
|
978 |
|
|
completed_read_command = issued_read_command_queue.pop_back();
|
979 |
|
|
start_construct_complete_read_response = 1;
|
980 |
|
|
end
|
981 |
|
|
end
|
982 |
|
|
|
983 |
|
|
if (start_construct_complete_read_response)
|
984 |
|
|
monitor_response(completed_read_command);
|
985 |
|
|
|
986 |
|
|
if (start_construct_complete_write_response)
|
987 |
|
|
monitor_response(completed_write_command);
|
988 |
|
|
|
989 |
|
|
end
|
990 |
|
|
end
|
991 |
|
|
end
|
992 |
|
|
|
993 |
|
|
//-----------------------------------------------------------------------------
|
994 |
|
|
// This task monitoring the command port info and pass it to response
|
995 |
|
|
// transaction.
|
996 |
|
|
//-----------------------------------------------------------------------------
|
997 |
|
|
task automatic sampled_response();
|
998 |
|
|
|
999 |
|
|
if (avs_read) begin
|
1000 |
|
|
response_addr_offset = 0;
|
1001 |
|
|
new_response.request = REQ_READ;
|
1002 |
|
|
new_response.data = 'x;
|
1003 |
|
|
new_response.wait_latency = 'x;
|
1004 |
|
|
new_response.byte_enable = 'x;
|
1005 |
|
|
new_response.write_latency = 'x;
|
1006 |
|
|
new_response.burst_count = avs_burstcount_int;
|
1007 |
|
|
new_response.burst_size = avs_burstcount_int;
|
1008 |
|
|
new_response.seq_count = command_sequence_counter++;;
|
1009 |
|
|
new_response.address = avs_address;
|
1010 |
|
|
new_response.read_id = 'x;
|
1011 |
|
|
new_response.read_response = 'x;
|
1012 |
|
|
new_response.begin_time = $time;
|
1013 |
|
|
|
1014 |
|
|
if (USE_READ_DATA_VALID || USE_BURSTCOUNT)
|
1015 |
|
|
new_response.read_latency = 'x;
|
1016 |
|
|
else
|
1017 |
|
|
new_response.read_latency = AV_FIX_READ_LATENCY;
|
1018 |
|
|
|
1019 |
|
|
if (avs_waitrequest) begin
|
1020 |
|
|
wait_time++;
|
1021 |
|
|
return;
|
1022 |
|
|
end
|
1023 |
|
|
|
1024 |
|
|
new_response.wait_latency[response_addr_offset] = wait_time;
|
1025 |
|
|
new_response.byte_enable[response_addr_offset] = avs_byteenable;
|
1026 |
|
|
issued_read_command_queue.push_front(new_response);
|
1027 |
|
|
-> __command_issued;
|
1028 |
|
|
write_burst_response_counter = 0;
|
1029 |
|
|
wait_time = 0;
|
1030 |
|
|
clock_snapshot.push_front(clock_counter);
|
1031 |
|
|
end else if (avs_write) begin
|
1032 |
|
|
if (write_burst_response_counter == 0) begin
|
1033 |
|
|
write_burst_response_counter = avs_burstcount_int;
|
1034 |
|
|
new_response.seq_count = command_sequence_counter++;;
|
1035 |
|
|
response_addr_offset = 0;
|
1036 |
|
|
end
|
1037 |
|
|
|
1038 |
|
|
new_response.read_latency = 'x;
|
1039 |
|
|
new_response.request = REQ_WRITE;
|
1040 |
|
|
new_response.data[response_addr_offset] = avs_writedata;
|
1041 |
|
|
new_response.byte_enable[response_addr_offset] = avs_byteenable;
|
1042 |
|
|
new_response.write_latency = 'x;
|
1043 |
|
|
if (response_addr_offset == 0) begin
|
1044 |
|
|
new_response.burst_count = avs_burstcount_int;
|
1045 |
|
|
new_response.burst_size = avs_burstcount_int;
|
1046 |
|
|
new_response.address = avs_address;
|
1047 |
|
|
new_response.begin_time = $time;
|
1048 |
|
|
end
|
1049 |
|
|
new_response.read_id = 'x;
|
1050 |
|
|
new_response.read_response = 'x;
|
1051 |
|
|
|
1052 |
|
|
if (avs_waitrequest) begin
|
1053 |
|
|
wait_time++;
|
1054 |
|
|
return;
|
1055 |
|
|
end
|
1056 |
|
|
|
1057 |
|
|
new_response.wait_latency[response_addr_offset] = wait_time;
|
1058 |
|
|
|
1059 |
|
|
if (USE_WRITERESPONSE == 0) begin
|
1060 |
|
|
if (response_addr_offset == (new_response.burst_count-1)) begin
|
1061 |
|
|
if (STORE_RESPONSE == 1) begin
|
1062 |
|
|
if (get_response_queue_size() < transaction_fifo_max) begin
|
1063 |
|
|
new_response.end_time = $time;
|
1064 |
|
|
write_response_queue.push_front(new_response);
|
1065 |
|
|
if (get_response_queue_size() > transaction_fifo_threshold)
|
1066 |
|
|
->signal_transaction_fifo_threshold;
|
1067 |
|
|
end else begin
|
1068 |
|
|
$sformat(message, "%m(%0d): FIFO overflow! Transaction dropped.", `__LINE__);
|
1069 |
|
|
print(VERBOSITY_WARNING, message);
|
1070 |
|
|
->signal_transaction_fifo_overflow;
|
1071 |
|
|
end
|
1072 |
|
|
end
|
1073 |
|
|
-> signal_write_response_complete;
|
1074 |
|
|
end
|
1075 |
|
|
end else begin
|
1076 |
|
|
if (response_addr_offset == (new_response.burst_count-1)) begin
|
1077 |
|
|
issued_write_command_queue.push_front(new_response);
|
1078 |
|
|
-> __command_issued;
|
1079 |
|
|
end
|
1080 |
|
|
end
|
1081 |
|
|
|
1082 |
|
|
response_addr_offset++;
|
1083 |
|
|
write_burst_response_counter--;
|
1084 |
|
|
wait_time = 0;
|
1085 |
|
|
end
|
1086 |
|
|
|
1087 |
|
|
endtask
|
1088 |
|
|
|
1089 |
|
|
//-----------------------------------------------------------------------------
|
1090 |
|
|
// This task monitoring the response port and construct a full response
|
1091 |
|
|
// transaction.
|
1092 |
|
|
//-----------------------------------------------------------------------------
|
1093 |
|
|
task automatic monitor_response(ref Response_t completed_response);
|
1094 |
|
|
case(completed_response.request)
|
1095 |
|
|
REQ_WRITE: begin
|
1096 |
|
|
// no response transaction while USE_WRITERESPONSE = 0
|
1097 |
|
|
if (USE_WRITERESPONSE == 1) begin
|
1098 |
|
|
if (!avs_writeresponsevalid) begin
|
1099 |
|
|
write_latency++;
|
1100 |
|
|
return;
|
1101 |
|
|
end
|
1102 |
|
|
|
1103 |
|
|
completed_response.write_id = avs_writeid;
|
1104 |
|
|
completed_response.write_latency = write_latency;
|
1105 |
|
|
|
1106 |
|
|
if (!$cast(completed_response.write_response, avs_response))
|
1107 |
|
|
begin
|
1108 |
|
|
$sformat(message, "%m: Response value is not valid when write response is valid");
|
1109 |
|
|
print(VERBOSITY_FAILURE, message);
|
1110 |
|
|
end
|
1111 |
|
|
|
1112 |
|
|
write_latency = 0;
|
1113 |
|
|
|
1114 |
|
|
if (STORE_RESPONSE == 1) begin
|
1115 |
|
|
if (get_response_queue_size() < transaction_fifo_max) begin
|
1116 |
|
|
completed_response.end_time = $time;
|
1117 |
|
|
write_response_queue.push_front(completed_response);
|
1118 |
|
|
if (get_response_queue_size() > transaction_fifo_threshold) begin
|
1119 |
|
|
->signal_transaction_fifo_threshold;
|
1120 |
|
|
end
|
1121 |
|
|
end else begin
|
1122 |
|
|
$sformat(message, "%m(%0d): FIFO overflow! Transaction dropped.", `__LINE__);
|
1123 |
|
|
print(VERBOSITY_WARNING, message);
|
1124 |
|
|
->signal_transaction_fifo_overflow;
|
1125 |
|
|
end
|
1126 |
|
|
end
|
1127 |
|
|
-> signal_write_response_complete;
|
1128 |
|
|
start_construct_complete_write_response = 0;
|
1129 |
|
|
end
|
1130 |
|
|
end
|
1131 |
|
|
REQ_READ: begin
|
1132 |
|
|
if (USE_READ_DATA_VALID || USE_BURSTCOUNT) begin
|
1133 |
|
|
if (!avs_readdatavalid) begin
|
1134 |
|
|
read_latency++;
|
1135 |
|
|
return;
|
1136 |
|
|
end
|
1137 |
|
|
completed_response.data[read_response_burst_counter] = avs_readdata;
|
1138 |
|
|
completed_response.read_latency[read_response_burst_counter] = read_latency;
|
1139 |
|
|
|
1140 |
|
|
if (USE_READRESPONSE) begin
|
1141 |
|
|
completed_response.read_id = avs_readid;
|
1142 |
|
|
|
1143 |
|
|
if (!$cast(completed_response.read_response[read_response_burst_counter], avs_response))
|
1144 |
|
|
begin
|
1145 |
|
|
$sformat(message, "%m: Response value is not valid when read response is valid");
|
1146 |
|
|
print(VERBOSITY_FAILURE, message);
|
1147 |
|
|
end
|
1148 |
|
|
end
|
1149 |
|
|
|
1150 |
|
|
read_latency = 0;
|
1151 |
|
|
|
1152 |
|
|
end else begin
|
1153 |
|
|
if (AV_FIX_READ_LATENCY > 0) begin
|
1154 |
|
|
if (clock_counter - clock_snapshot[$] < AV_FIX_READ_LATENCY) begin
|
1155 |
|
|
return;
|
1156 |
|
|
end
|
1157 |
|
|
current_time = clock_snapshot.pop_back();
|
1158 |
|
|
end
|
1159 |
|
|
|
1160 |
|
|
completed_response.read_latency[0] = AV_FIX_READ_LATENCY;
|
1161 |
|
|
completed_response.data[0] = avs_readdata;
|
1162 |
|
|
|
1163 |
|
|
if (USE_READRESPONSE) begin
|
1164 |
|
|
completed_response.read_id = avs_readid;
|
1165 |
|
|
|
1166 |
|
|
if (!$cast(completed_response.read_response[0], avs_response))
|
1167 |
|
|
begin
|
1168 |
|
|
$sformat(message, "%m: Response value is not valid when read response is valid");
|
1169 |
|
|
print(VERBOSITY_FAILURE, message);
|
1170 |
|
|
end
|
1171 |
|
|
end
|
1172 |
|
|
read_latency = 0;
|
1173 |
|
|
end
|
1174 |
|
|
|
1175 |
|
|
if (read_response_burst_counter == completed_response.burst_count-1) begin
|
1176 |
|
|
if (STORE_RESPONSE == 1) begin
|
1177 |
|
|
if (get_response_queue_size() < transaction_fifo_max) begin
|
1178 |
|
|
completed_response.end_time = $time;
|
1179 |
|
|
read_response_queue.push_front(completed_response);
|
1180 |
|
|
if (get_response_queue_size() > transaction_fifo_threshold)
|
1181 |
|
|
->signal_transaction_fifo_threshold;
|
1182 |
|
|
end else begin
|
1183 |
|
|
$sformat(message, "%m(%0d): FIFO overflow! Transaction dropped.", `__LINE__);
|
1184 |
|
|
print(VERBOSITY_WARNING, message);
|
1185 |
|
|
->signal_transaction_fifo_overflow;
|
1186 |
|
|
end
|
1187 |
|
|
end
|
1188 |
|
|
->signal_read_response_complete;
|
1189 |
|
|
read_response_burst_counter = 0;
|
1190 |
|
|
start_construct_complete_read_response = 0;
|
1191 |
|
|
end else begin
|
1192 |
|
|
read_response_burst_counter++;
|
1193 |
|
|
end
|
1194 |
|
|
end
|
1195 |
|
|
endcase
|
1196 |
|
|
endtask
|
1197 |
|
|
|
1198 |
|
|
always @(signal_read_response_complete or
|
1199 |
|
|
signal_write_response_complete or
|
1200 |
|
|
posedge reset) begin
|
1201 |
|
|
if (!reset) begin
|
1202 |
|
|
->signal_response_complete;
|
1203 |
|
|
end
|
1204 |
|
|
end
|
1205 |
|
|
|
1206 |
|
|
|
1207 |
|
|
//-----------------------------------------------------------------------------
|
1208 |
|
|
// This block monitoring the command transaction
|
1209 |
|
|
//-----------------------------------------------------------------------------
|
1210 |
|
|
always @(posedge clk or posedge reset) begin
|
1211 |
|
|
clken_register <= avs_clken;
|
1212 |
|
|
if (reset) begin
|
1213 |
|
|
init();
|
1214 |
|
|
end else begin
|
1215 |
|
|
if (!USE_CLKEN || avs_clken == 1) begin
|
1216 |
|
|
monitor_command();
|
1217 |
|
|
end
|
1218 |
|
|
end
|
1219 |
|
|
end
|
1220 |
|
|
|
1221 |
|
|
//-----------------------------------------------------------------------------
|
1222 |
|
|
// This task monitoring the command port and construct a full command
|
1223 |
|
|
// transaction.
|
1224 |
|
|
//-----------------------------------------------------------------------------
|
1225 |
|
|
task automatic monitor_command();
|
1226 |
|
|
if (avs_write) begin
|
1227 |
|
|
if (write_burst_command_counter == 0) begin
|
1228 |
|
|
write_burst_command_counter = avs_burstcount_int;
|
1229 |
|
|
command_addr_offset = 0;
|
1230 |
|
|
end
|
1231 |
|
|
|
1232 |
|
|
current_command.request = REQ_WRITE;
|
1233 |
|
|
current_command.data[command_addr_offset] = avs_writedata;
|
1234 |
|
|
current_command.byte_enable[command_addr_offset] = avs_byteenable;
|
1235 |
|
|
if (command_addr_offset == 0) begin
|
1236 |
|
|
current_command.address = avs_address;
|
1237 |
|
|
current_command.burst_count = avs_burstcount_int;
|
1238 |
|
|
current_command.transaction_id = avs_transactionid;
|
1239 |
|
|
end
|
1240 |
|
|
|
1241 |
|
|
current_command.burst_cycle = command_addr_offset;
|
1242 |
|
|
current_command.arbiterlock = avs_arbiterlock;
|
1243 |
|
|
current_command.lock = avs_lock;
|
1244 |
|
|
current_command.debugaccess = avs_debugaccess;
|
1245 |
|
|
|
1246 |
|
|
if (command_waitrequested_start == 0) begin
|
1247 |
|
|
if ((consolidate_write_burst_transactions &&
|
1248 |
|
|
(command_addr_offset == current_command.burst_count-1)) ||
|
1249 |
|
|
!consolidate_write_burst_transactions) begin
|
1250 |
|
|
if (STORE_COMMAND == 1) begin
|
1251 |
|
|
if (get_command_queue_size() < transaction_fifo_max) begin
|
1252 |
|
|
current_command.begin_time = $time;
|
1253 |
|
|
command_queue.push_front(current_command);
|
1254 |
|
|
if (get_command_queue_size() > transaction_fifo_threshold)
|
1255 |
|
|
->signal_transaction_fifo_threshold;
|
1256 |
|
|
end else begin
|
1257 |
|
|
$sformat(message, "%m(%0d): FIFO overflow! Transaction dropped.", `__LINE__);
|
1258 |
|
|
print(VERBOSITY_WARNING, message);
|
1259 |
|
|
->signal_transaction_fifo_overflow;
|
1260 |
|
|
end
|
1261 |
|
|
end
|
1262 |
|
|
->signal_command_received;
|
1263 |
|
|
end
|
1264 |
|
|
if (avs_waitrequest) begin
|
1265 |
|
|
command_waitrequested_start = 1;
|
1266 |
|
|
return;
|
1267 |
|
|
end
|
1268 |
|
|
end else begin
|
1269 |
|
|
if (avs_waitrequest)
|
1270 |
|
|
return;
|
1271 |
|
|
else
|
1272 |
|
|
command_waitrequested_start = 0;
|
1273 |
|
|
end
|
1274 |
|
|
command_addr_offset++;
|
1275 |
|
|
write_burst_command_counter--;
|
1276 |
|
|
end else if (avs_read) begin
|
1277 |
|
|
|
1278 |
|
|
current_command = 'x;
|
1279 |
|
|
write_burst_command_counter = 0;
|
1280 |
|
|
command_addr_offset = 0;
|
1281 |
|
|
|
1282 |
|
|
current_command.request = REQ_READ;
|
1283 |
|
|
current_command.address = avs_address;
|
1284 |
|
|
current_command.data = 'x;
|
1285 |
|
|
current_command.byte_enable = avs_byteenable;
|
1286 |
|
|
current_command.burst_count = avs_burstcount_int;
|
1287 |
|
|
current_command.arbiterlock = avs_arbiterlock;
|
1288 |
|
|
current_command.lock = avs_lock;
|
1289 |
|
|
current_command.debugaccess = avs_debugaccess;
|
1290 |
|
|
current_command.transaction_id = avs_transactionid;
|
1291 |
|
|
|
1292 |
|
|
if (command_waitrequested_start == 0) begin
|
1293 |
|
|
if (STORE_COMMAND == 1) begin
|
1294 |
|
|
if (get_command_queue_size() < transaction_fifo_max) begin
|
1295 |
|
|
current_command.begin_time = $time;
|
1296 |
|
|
command_queue.push_front(current_command);
|
1297 |
|
|
if (get_command_queue_size() > transaction_fifo_threshold)
|
1298 |
|
|
->signal_transaction_fifo_threshold;
|
1299 |
|
|
end else begin
|
1300 |
|
|
$sformat(message, "%m(%0d): FIFO overflow! Transaction dropped.", `__LINE__);
|
1301 |
|
|
print(VERBOSITY_WARNING, message);
|
1302 |
|
|
->signal_transaction_fifo_overflow;
|
1303 |
|
|
end
|
1304 |
|
|
end
|
1305 |
|
|
->signal_command_received;
|
1306 |
|
|
if (avs_waitrequest) begin
|
1307 |
|
|
command_waitrequested_start = 1;
|
1308 |
|
|
return;
|
1309 |
|
|
end
|
1310 |
|
|
end else begin
|
1311 |
|
|
if (avs_waitrequest)
|
1312 |
|
|
return;
|
1313 |
|
|
else
|
1314 |
|
|
command_waitrequested_start = 0;
|
1315 |
|
|
end
|
1316 |
|
|
end
|
1317 |
|
|
endtask
|
1318 |
|
|
|
1319 |
|
|
// synthesis translate_on
|
1320 |
|
|
endmodule
|
1321 |
|
|
|
1322 |
|
|
|
1323 |
|
|
|