Mahesh Asolkar
800e9c4008
* Bare skeleton implementation of everything * Testbench builds with Verilator * Test runs
130 lines
4.5 KiB
Systemverilog
130 lines
4.5 KiB
Systemverilog
// Base class for testbench tests
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class test_base extends uvm_test;
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`uvm_component_utils(test_base)
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tb_env env;
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uvm_table_printer tb_printer;
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// ------------------------------------------------------------
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function new(string name, uvm_component parent);
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super.new(name, parent);
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endfunction
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// ------------------------------------------------------------
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function void build_phase(uvm_phase phase);
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super.build_phase(phase);
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env = tb_env::type_id::create("env", this);
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tb_printer = new("tb_printer");
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uvm_config_db#(tb_env)::set(uvm_root::get(), "*", "env", env);
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endfunction
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// ------------------------------------------------------------
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virtual function void end_of_elaboration_phase(uvm_phase phase);
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`uvm_info("end_of_elaboration_phase", $sformatf("Testbench topology:\n%s", this.sprint(tb_printer)), UVM_LOW)
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display_uvm_config_db();
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display_uvm_config_db("uvm_test_top.env.axi_m");
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display_uvm_config_db("uvm_test_top.env.axi_s");
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dump_uvm_config_db();
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endfunction
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// ------------------------------------------------------------
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virtual task run_phase(uvm_phase phase);
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uvm_objection objection;
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objection = phase.get_objection();
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`uvm_info("run_phase", $sformatf("Raising objection"), UVM_LOW)
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phase.raise_objection(this);
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run_reset_phase(phase);
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run_test_phase(phase);
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run_flush_phase(phase);
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objection.set_drain_time(this, 20);
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`uvm_info("run_phase", $sformatf("Dropping objection"), UVM_LOW)
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phase.drop_objection(this);
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endtask
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// ------------------------------------------------------------
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virtual task run_reset_phase(uvm_phase phase);
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`uvm_info("run_reset_phase", $sformatf("Starting reset"), UVM_LOW)
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`uvm_info("run_reset_phase", $sformatf("Finishing reset"), UVM_LOW)
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endtask
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// ------------------------------------------------------------
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virtual task run_test_phase(uvm_phase phase);
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`uvm_warning("run_test_phase", $sformatf("This content is expected to be implemented in specific tests"))
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endtask
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// ------------------------------------------------------------
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virtual task run_flush_phase(uvm_phase phase);
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`uvm_info("run_flush_phase", $sformatf("Finishing test"), UVM_LOW)
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endtask
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// ------------------------------------------------------------
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// Function to traverse and display all entries in uvm_config_db
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function void display_uvm_config_db(string scope = ".*");
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uvm_resource_pool rp = uvm_resource_pool::get();
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uvm_resource_types::rsrc_q_t resources;
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// Get all resources from the resource pool
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resources = rp.lookup_regex(scope, get_full_name());
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rp.print_resources(resources, 1);
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`uvm_info("CONFIG_DB", "Traversing uvm_config_db contents:", UVM_LOW)
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if (resources.size() == 0) begin
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`uvm_info("CONFIG_DB", "No entries found in uvm_config_db", UVM_LOW)
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return;
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end
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// Iterate through all resources
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do begin
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uvm_resource_base r = resources.pop_front();
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if (r == null) begin
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`uvm_info("CONFIG_DB", "No more resources to process", UVM_LOW)
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break;
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end
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`uvm_info("CONFIG_DB", $sformatf("Resource: %s", r.get_name()), UVM_LOW)
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end while (1);
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endfunction
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// ------------------------------------------------------------
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// Function to dump all entries in uvm_config_db
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function void dump_uvm_config_db();
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uvm_resource_pool rp = uvm_resource_pool::get();
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endfunction
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endclass
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// ----------------------------------------------------------------------
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class test_basic extends test_base;
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`uvm_component_utils(test_basic)
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// ------------------------------------------------------------
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function new(string name, uvm_component parent);
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super.new(name, parent);
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endfunction
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// ------------------------------------------------------------
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virtual task run_test_phase(uvm_phase phase);
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axi_simple_seq seq;
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`uvm_info("run_test_phase", $sformatf("Starting stimulus"), UVM_LOW)
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#100ns;
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seq = axi_simple_seq::type_id::create("seq");
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if (seq == null) begin
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`uvm_fatal("run_test_phase", "Failed to create sequence instance")
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end
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seq.start(env.get_axi_m_sequencer());
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`uvm_info("run_test_phase", $sformatf("Finishing stimulus"), UVM_LOW)
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endtask
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endclass
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