Axi4 passive vip

hw/dv/vip/axi4_vip/axi4_vip.core

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+CAPI=2:
+# Copyright lowRISC contributors (COSMIC project).
+# Licensed under the Apache License, Version 2.0, see LICENSE for details.
+# SPDX-License-Identifier: Apache-2.0
+
+name : lowrisc:dv:axi4_vip:0.1
+
+filesets:
+  files_dv:
+    files:
+      - axi4_vip_if.sv
+      - axi4_vip_pkg.sv
+      - axi4_vip_defines.svh: {is_include_file: true}
+      - axi4_vip_types.svh: {is_include_file: true}
+      - axi4_vip_cfg.svh: {is_include_file: true}
+      - axi4_vip_item.svh: {is_include_file: true}
+      - axi4_vip_driver.svh: {is_include_file: true}
+      - axi4_vip_sequencer.svh: {is_include_file: true}
+      - axi4_vip_monitor.svh: {is_include_file: true}
+      - axi4_vip_manager_agent.svh: {is_include_file: true}
+      - axi4_vip_subordinate_agent.svh: {is_include_file: true}
+      - axi4_vip_env.svh: {is_include_file: true}
+    file_type: systemVerilogSource
+
+targets:
+  default:
+    filesets:
+      - files_dv

hw/dv/vip/axi4_vip/axi4_vip_cfg.svh

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+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+class axi4_vip_cfg extends uvm_object;
+
+  // Currently this is a passive VIP (monitor only)
+  string                  m_inst_id                    = "AXI4";
+  bit                     m_has_manager                = 0;
+  uvm_active_passive_enum m_manager_active_passive     = UVM_PASSIVE;
+  bit                     m_has_subordinate            = 0;
+  uvm_active_passive_enum m_subordinate_active_passive = UVM_PASSIVE;
+
+  // Future placeholders
+  bit                     m_has_coverage               = 0;
+  bit                     m_has_checker                = 0;
+
+  // actual bus widths (<= max defines)
+  int unsigned m_id_width      =   16;
+  int unsigned m_addr_width    =   64;
+  int unsigned m_data_width    = 1024;
+  int unsigned m_user_width    =   32;
+  int unsigned m_region_width  =    8;
+  int unsigned m_qos_width     =    8;
+
+  `uvm_object_utils_begin(axi4_vip_cfg)
+    `uvm_field_string(m_inst_id, UVM_DEFAULT | UVM_STRING)
+    `uvm_field_int(m_has_manager, UVM_DEFAULT)
+    `uvm_field_int(m_has_subordinate, UVM_DEFAULT)
+    `uvm_field_int(m_has_coverage, UVM_DEFAULT)
+    `uvm_field_int(m_has_checker, UVM_DEFAULT)
+    `uvm_field_enum(uvm_active_passive_enum, m_manager_active_passive, UVM_DEFAULT)
+    `uvm_field_enum(uvm_active_passive_enum, m_subordinate_active_passive, UVM_DEFAULT)
+    `uvm_field_int(m_id_width, UVM_DEFAULT)
+    `uvm_field_int(m_addr_width, UVM_DEFAULT)
+    `uvm_field_int(m_data_width, UVM_DEFAULT)
+    `uvm_field_int(m_user_width, UVM_DEFAULT)
+    `uvm_field_int(m_region_width, UVM_DEFAULT)
+    `uvm_field_int(m_qos_width, UVM_DEFAULT)
+  `uvm_object_utils_end
+
+  // External Method Declarations
+  extern function new(string name = "axi4_vip_cfg");
+
+  extern virtual function void set_config(
+    string inst_id = "", bit has_manager = 0, uvm_active_passive_enum manager_active_passive = UVM_PASSIVE,
+    bit has_subordinate = 0, uvm_active_passive_enum subordinate_active_passive = UVM_PASSIVE, bit has_coverage = 0,
+    bit has_checker = 0, int unsigned id_width = 16, int unsigned addr_width = 64, int unsigned data_width = 1024,
+    int unsigned user_width = 32, int unsigned region_width = 8, int unsigned qos_width = 8);
+
+endclass : axi4_vip_cfg
+
+// External Method Implementations
+function axi4_vip_cfg::new(string name = "axi4_vip_cfg");
+  super.new(name);
+endfunction : new
+
+function void axi4_vip_cfg::set_config(
+  string inst_id = "", bit has_manager = 0, uvm_active_passive_enum manager_active_passive = UVM_PASSIVE,
+  bit has_subordinate = 0, uvm_active_passive_enum subordinate_active_passive = UVM_PASSIVE, bit has_coverage = 0,
+  bit has_checker = 0, int unsigned id_width = 16, int unsigned addr_width = 64, int unsigned data_width = 1024,
+  int unsigned user_width = 32, int unsigned region_width = 8, int unsigned qos_width = 8);
+  m_inst_id                    = inst_id;
+  m_has_manager                = has_manager;
+  m_manager_active_passive     = manager_active_passive;
+  m_has_subordinate            = has_subordinate;
+  m_subordinate_active_passive = subordinate_active_passive;
+  m_has_coverage               = has_coverage;
+  m_has_checker                = has_checker;
+  m_id_width                   = id_width;
+  m_addr_width                 = addr_width;
+  m_data_width                 = data_width;
+  m_user_width                 = user_width;
+  m_region_width               = region_width;
+  m_qos_width                  = qos_width;
+endfunction : set_config

hw/dv/vip/axi4_vip/axi4_vip_defines.svh

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+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+// maximum supported bus widths
+`define AXI4_MAX_ID_WIDTH       16
+`define AXI4_MAX_ADDR_WIDTH     64
+`define AXI4_MAX_DATA_WIDTH   1024
+`define AXI4_MAX_USER_WIDTH     32
+`define AXI4_MAX_REGION_WIDTH    8
+`define AXI4_MAX_QOS_WIDTH       8

hw/dv/vip/axi4_vip/axi4_vip_driver.svh

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+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+class axi4_vip_driver extends uvm_driver #(axi4_vip_item);
+
+  `uvm_component_utils(axi4_vip_driver)
+
+  axi4_vip_cfg        m_cfg;
+  virtual axi4_vip_if vif;
+
+  // External Method Declarations
+  extern function new(string name, uvm_component parent);
+  extern function void build_phase(uvm_phase phase);
+  extern task run_phase(uvm_phase phase);
+
+endclass : axi4_vip_driver
+
+//------------------------------------------------------------------------------
+// External Method Implementations
+//------------------------------------------------------------------------------
+
+function axi4_vip_driver::new(string name, uvm_component parent);
+  super.new(name, parent);
+endfunction : new
+
+function void axi4_vip_driver::build_phase(uvm_phase phase);
+  super.build_phase(phase);
+  if (! uvm_config_db #(axi4_vip_cfg)::get(this, "", "m_cfg", m_cfg)) begin
+     `uvm_fatal("NOCFG", {"Configuration item  must be set for: ", get_full_name(), "m_cfg"})
+  end
+
+  if (! uvm_config_db #(virtual interface axi4_vip_if)::get(this, get_full_name(),"vif", vif)) begin
+    `uvm_fatal("NOVIF",{"virtual interface must be set for: ",get_full_name(),".vif"})
+  end
+endfunction : build_phase
+
+task axi4_vip_driver::run_phase(uvm_phase phase);
+  forever begin
+    // TODO: Placeholder
+    seq_item_port.get_next_item(req);
+    seq_item_port.item_done();
+  end
+endtask : run_phase

hw/dv/vip/axi4_vip/axi4_vip_env.svh

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+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+class axi4_vip_env extends uvm_env;
+
+  `uvm_component_utils(axi4_vip_env)
+
+  axi4_vip_cfg m_cfg;
+
+  axi4_vip_manager_agent m_manager;
+  axi4_vip_subordinate_agent  m_subordinate;
+
+  // External Method Declarations
+  extern function new(string name, uvm_component parent);
+  extern function void build_phase(uvm_phase phase);
+
+endclass : axi4_vip_env
+
+//------------------------------------------------------------------------------
+// External Method Implementations
+//------------------------------------------------------------------------------
+
+function axi4_vip_env::new(string name, uvm_component parent);
+  super.new(name, parent);
+endfunction : new
+
+function void axi4_vip_env::build_phase(uvm_phase phase);
+  super.build_phase(phase);
+
+  if (! uvm_config_db #(axi4_vip_cfg)::get(this, "", "m_cfg", m_cfg)) begin
+    `uvm_fatal("NOCFG", {"Configuration item  must be set for: ", get_full_name(), "m_cfg"})
+  end
+
+  if (m_cfg.m_has_manager == 1) begin
+    m_manager = axi4_vip_manager_agent::type_id::create("m_manager", this);
+  end
+
+  if (m_cfg.m_has_subordinate == 1) begin
+    m_subordinate = axi4_vip_subordinate_agent::type_id::create("m_subordinate", this);
+  end
+endfunction : build_phase

hw/dv/vip/axi4_vip/axi4_vip_if.sv

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+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+interface axi4_vip_if #(
+  parameter int ID_WIDTH     = 4,
+  parameter int ADDR_WIDTH   = 32,
+  parameter int DATA_WIDTH   = 64,
+  parameter int USER_WIDTH   = 8,
+  parameter int REGION_WIDTH = 4,
+  parameter int QOS_WIDTH    = 4
+) (
+  input logic aclk,
+  input logic aresetn
+);
+
+  // write address channel
+  logic                      awvalid;
+  logic                      awready;
+  logic [      ID_WIDTH-1:0] awid;
+  logic [    ADDR_WIDTH-1:0] awaddr;
+  logic [               7:0] awlen;
+  logic [               2:0] awsize;
+  logic [               1:0] awburst;
+  logic                      awlock;
+  logic [               3:0] awcache;
+  logic [               2:0] awprot;
+  logic [     QOS_WIDTH-1:0] awqos;
+  logic [  REGION_WIDTH-1:0] awregion;
+  logic [    USER_WIDTH-1:0] awuser;
+
+  // write data channel
+  logic                      wvalid;
+  logic                      wready;
+  logic [    DATA_WIDTH-1:0] wdata;
+  logic [(DATA_WIDTH/8)-1:0] wstrb;
+  logic                      wlast;
+  logic [    USER_WIDTH-1:0] wuser;
+
+  // write response channel
+  logic                      bvalid;
+  logic                      bready;
+  logic [      ID_WIDTH-1:0] bid;
+  logic [               1:0] bresp;
+  logic [    USER_WIDTH-1:0] buser;
+
+  // read address channel
+  logic                      arvalid;
+  logic                      arready;
+  logic [      ID_WIDTH-1:0] arid;
+  logic [    ADDR_WIDTH-1:0] araddr;
+  logic [               7:0] arlen;
+  logic [               2:0] arsize;
+  logic [               1:0] arburst;
+  logic                      arlock;
+  logic [               3:0] arcache;
+  logic [               2:0] arprot;
+  logic [     QOS_WIDTH-1:0] arqos;
+  logic [  REGION_WIDTH-1:0] arregion;
+  logic [    USER_WIDTH-1:0] aruser;
+
+  // read data channel
+  logic                      rvalid;
+  logic                      rready;
+  logic [      ID_WIDTH-1:0] rid;
+  logic [    DATA_WIDTH-1:0] rdata;
+  logic [               1:0] rresp;
+  logic                      rlast;
+  logic [    USER_WIDTH-1:0] ruser;
+
+  // manager clocking block
+  clocking manager_cb @(posedge aclk);
+
+    // write address
+    output awvalid, awid, awaddr, awlen, awsize, awburst;
+    output awlock, awcache, awprot, awqos, awregion, awuser;
+    input awready;
+
+    // write data
+    output wvalid, wdata, wstrb, wlast, wuser;
+    input wready;
+
+    // write response
+    input bvalid, bid, bresp, buser;
+    output bready;
+
+    // read address
+    output arvalid, arid, araddr, arlen, arsize, arburst;
+    output arlock, arcache, arprot, arqos, arregion, aruser;
+    input arready;
+
+    // read data
+    input rvalid, rid, rdata, rresp, rlast, ruser;
+    output rready;
+
+  endclocking
+
+
+  // subordinate clocking block
+  clocking subordinate_cb @(posedge aclk);
+
+    // write address
+    input awvalid, awid, awaddr, awlen, awsize, awburst;
+    input awlock, awcache, awprot, awqos, awregion, awuser;
+    output awready;
+
+    // write data
+    input wvalid, wdata, wstrb, wlast, wuser;
+    output wready;
+
+    // write response
+    output bvalid, bid, bresp, buser;
+    input bready;
+
+    // read address
+    input arvalid, arid, araddr, arlen, arsize, arburst;
+    input arlock, arcache, arprot, arqos, arregion, aruser;
+    output arready;
+
+    // read data
+    output rvalid, rid, rdata, rresp, rlast, ruser;
+    input rready;
+
+  endclocking
+
+
+  // monitor clocking block
+  clocking monitor_cb @(posedge aclk);
+
+    input awvalid, awready, awid, awaddr, awlen, awsize, awburst;
+    input awlock, awcache, awprot, awqos, awregion, awuser;
+
+    input wvalid, wready, wdata, wstrb, wlast, wuser;
+
+    input bvalid, bready, bid, bresp, buser;
+
+    input arvalid, arready, arid, araddr, arlen, arsize, arburst;
+    input arlock, arcache, arprot, arqos, arregion, aruser;
+
+    input rvalid, rready, rid, rdata, rresp, rlast, ruser;
+
+  endclocking
+
+endinterface