Axi4 passive vip and scoreboard

hw/dv/vip/axi4_vip/axi4_vip.core

@@ -0,0 +1,28 @@
+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_master_agent.svh: {is_include_file: true}
+      - axi4_vip_slave_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
+
+`ifndef AXI4_VIP_CFG_SVH
+`define AXI4_VIP_CFG_SVH
+
+class axi4_vip_cfg extends uvm_object;
+
+  // Currently this is a passive VIP (monitor only)
+  string                  m_inst_id               = "AXI4";
+  bit                     m_has_master            = 0;
+  uvm_active_passive_enum m_master_active_passive = UVM_PASSIVE;
+  bit                     m_has_slave             = 0;
+  uvm_active_passive_enum m_slave_active_passive  = UVM_PASSIVE;
+
+  // Future placeholders
+  bit                     m_has_coverage          = 1;
+  bit                     m_has_checker           = 1;
+
+  // actual bus widths (<= max defines)
+  int unsigned m_id_width      =  16;
+  int unsigned m_addr_width    =  64;
+  int unsigned m_data_width    = 512;
+  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_master,            UVM_DEFAULT)
+    `uvm_field_int   (                         m_has_slave,             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_master_active_passive, UVM_DEFAULT)
+    `uvm_field_enum  (uvm_active_passive_enum, m_slave_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_master = 0, 
+                                   uvm_active_passive_enum master_active_passive = UVM_PASSIVE, 
+                                   bit has_slave = 0, 
+                                   uvm_active_passive_enum slave_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   = 512,
+                                   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_master = 0, 
+                                       uvm_active_passive_enum master_active_passive = UVM_PASSIVE, 
+                                       bit has_slave = 0, 
+                                       uvm_active_passive_enum slave_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   = 512,
+                                       int unsigned user_width   =  32,
+                                       int unsigned region_width =   8,
+                                       int unsigned qos_width    =   8
+                                      );
+  m_inst_id               = inst_id;
+  m_has_master            = has_master;
+  m_master_active_passive = master_active_passive;
+  m_has_slave             = has_slave;
+  m_slave_active_passive  = slave_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
+
+`endif // AXI4_VIP_CFG_SVH

hw/dv/vip/axi4_vip/axi4_vip_defines.svh

@@ -0,0 +1,16 @@
+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+`ifndef AXI4_VIP_DEFINES_SVH
+`define AXI4_VIP_DEFINES_SVH
+
+// maximum supported bus widths
+`define AXI4_MAX_ID_WIDTH     16
+`define AXI4_MAX_ADDR_WIDTH   64
+`define AXI4_MAX_DATA_WIDTH   512
+`define AXI4_MAX_USER_WIDTH   32
+`define AXI4_MAX_REGION_WIDTH 8
+`define AXI4_MAX_QOS_WIDTH    8
+
+`endif // AXI4_VIP_DEFINES_SVH

hw/dv/vip/axi4_vip/axi4_vip_driver.svh

@@ -0,0 +1,49 @@
+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+`ifndef AXI4_VIP_DRIVER_SVH
+`define AXI4_VIP_DRIVER_SVH
+
+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
+
+`endif // AXI4_VIP_DRIVER_SVH

hw/dv/vip/axi4_vip/axi4_vip_env.svh

@@ -0,0 +1,47 @@
+// Copyright lowRISC contributors (COSMIC project).
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+
+`ifndef AXI4_VIP_ENV_SVH
+`define AXI4_VIP_ENV_SVH
+
+class axi4_vip_env extends uvm_env;
+
+  `uvm_component_utils(axi4_vip_env)
+
+  axi4_vip_cfg m_cfg;
+
+  axi4_vip_master_agent m_master;
+  axi4_vip_slave_agent  m_slave;
+
+  // 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_master == 1) begin
+    m_master = axi4_vip_master_agent::type_id::create("m_master", this);
+  end
+
+  if (m_cfg.m_has_slave == 1) begin
+    m_slave = axi4_vip_slave_agent::type_id::create("m_slave", this);
+  end
+endfunction : build_phase
+
+`endif // AXI4_VIP_ENV_SVH