uvm_phase 実行順序 UVM

はじめに

uvm_phaseの種類と、各フェーズがトップダウン（Test階層→Env階層→Agent階層）で実行されるかボトムアップ（Agent階層→Env階層→Test階層）で実行されるかを調べました。

uvm_phase

uvm_phaseの各フェーズは表の上から順に実行されていきます。

uvm_phase実行順序
build_phaseトップダウン
connect_phaseボトムアップ
end_of_elaboration_phaseボトムアップ
start_of_simulation_phaseボトムアップ
pre_reset_phaseトップダウン
reset_phaseトップダウン
post_reset_phaseトップダウン
pre_configure_phaseトップダウン
configure_phaseトップダウン
post_configure_phaseトップダウン
pre_main_phaseトップダウン
main_phaseトップダウン
post_main_phaseトップダウン
pre_shutdown_phaseトップダウン
shutdown_phaseトップダウン
post_shutdown_phaseトップダウン
extract_phaseボトムアップ
check_phaseボトムアップ
report_phaseボトムアップ
final_phaseトップダウン

サンプルコード

module top();
    import uvm_pkg::*;
    `include "uvm_macros.svh"

    class sample_env extends uvm_env;
        `uvm_component_utils(sample_env)
        function new(string name, uvm_component parent);
            super.new(name, parent);
        endfunction
        function void build_phase(uvm_phase phase);
            super.build_phase(phase);
            `uvm_info(this.get_name(), "build_phase", UVM_NONE)
        endfunction
        function void connect_phase(uvm_phase phase);
            super.connect_phase(phase);
            `uvm_info(this.get_name(), "connect_phase", UVM_NONE)
        endfunction
        function void end_of_elaboration_phase(uvm_phase phase);
            super.end_of_elaboration_phase(phase);
            `uvm_info(this.get_name(), "end_of_elaboration_phase", UVM_NONE)
        endfunction
        function void start_of_simulation_phase(uvm_phase phase);
            super.start_of_simulation_phase(phase);
            `uvm_info(this.get_name(), "start_of_simulation_phase", UVM_NONE)
        endfunction
        task run_pahse(uvm_phase phase);
            super.run_phase(phase);
            `uvm_info(this.get_name(), "run_phase", UVM_NONE)
        endtask
        task pre_reset_phase(uvm_phase phase);
            super.pre_reset_phase(phase);
            `uvm_info(this.get_name(), "pre_reset_phase", UVM_NONE)
        endtask
        task reset_phase(uvm_phase phase);
            super.reset_phase(phase);
            `uvm_info(this.get_name(), "reset_phase", UVM_NONE)
        endtask
        task post_reset_phase(uvm_phase phase);
            super.post_reset_phase(phase);
            `uvm_info(this.get_name(), "post_reset_phase", UVM_NONE)
        endtask
        task pre_configure_phase(uvm_phase phase);
            super.pre_configure_phase(phase);
            `uvm_info(this.get_name(), "pre_configure_phase", UVM_NONE)
        endtask
        task configure_phase(uvm_phase phase);
            super.configure_phase(phase);
            `uvm_info(this.get_name(), "configure_phase", UVM_NONE)
        endtask
        task post_configure_phase(uvm_phase phase);
            super.post_configure_phase(phase);
            `uvm_info(this.get_name(), "post_configure_phase", UVM_NONE)
        endtask
        task pre_main_phase(uvm_phase phase);
            super.pre_main_phase(phase);
            `uvm_info(this.get_name(), "pre_main_phase", UVM_NONE)
        endtask
        task main_phase(uvm_phase phase);
            super.main_phase(phase);
            `uvm_info(this.get_name(), "main_phase", UVM_NONE)
        endtask
        task post_main_phase(uvm_phase phase);
            super.post_main_phase(phase);
            `uvm_info(this.get_name(), "post_main_phase", UVM_NONE)
        endtask
        task pre_shutdown_phase(uvm_phase phase);
            super.pre_shutdown_phase(phase);
            `uvm_info(this.get_name(), "pre_shutdown_phase", UVM_NONE)
        endtask
        task shutdown_phase(uvm_phase phase);
            super.shutdown_phase(phase);
            `uvm_info(this.get_name(), "shutdown_phase", UVM_NONE)
        endtask
        task post_shutdown_phase(uvm_phase phase);
            super.post_shutdown_phase(phase);
            `uvm_info(this.get_name(), "post_shutdown_phase", UVM_NONE)
        endtask
        function void extract_phase(uvm_phase phase);
            super.extract_phase(phase);
            `uvm_info(this.get_name(), "extract_phase", UVM_NONE)
        endfunction
        function void check_phase(uvm_phase phase);
            super.check_phase(phase);
            `uvm_info(this.get_name(), "check_phase", UVM_NONE)
        endfunction
        function void report_phase(uvm_phase phase);
            super.report_phase(phase);
            `uvm_info(this.get_name(), "report_phase", UVM_NONE)
        endfunction
        function void final_phase(uvm_phase phase);
            super.final_phase(phase);
            `uvm_info(this.get_name(), "final_phase", UVM_NONE)
        endfunction
    endclass

    class sample_test extends uvm_test;
        `uvm_component_utils(sample_test)
        sample_env env;
        function new(string name="sample_test", uvm_component parent=null);
            super.new(name, parent);
        endfunction
        function void build_phase(uvm_phase phase);
            super.build_phase(phase);
            env = sample_env::type_id::create("env", this);
            `uvm_info(this.get_name(), "build_phase", UVM_NONE)
        endfunction
        function void connect_phase(uvm_phase phase);
            super.connect_phase(phase);
            `uvm_info(this.get_name(), "connect_phase", UVM_NONE)
        endfunction
        function void end_of_elaboration_phase(uvm_phase phase);
            super.end_of_elaboration_phase(phase);
            `uvm_info(this.get_name(), "end_of_elaboration_phase", UVM_NONE)
        endfunction
        function void start_of_simulation_phase(uvm_phase phase);
            super.start_of_simulation_phase(phase);
            `uvm_info(this.get_name(), "start_of_simulation_phase", UVM_NONE)
        endfunction
        task run_pahse(uvm_phase phase);
            super.run_phase(phase);
            `uvm_info(this.get_name(), "run_phase", UVM_NONE)
        endtask
        task pre_reset_phase(uvm_phase phase);
            super.pre_reset_phase(phase);
            `uvm_info(this.get_name(), "pre_reset_phase", UVM_NONE)
        endtask
        task reset_phase(uvm_phase phase);
            super.reset_phase(phase);
            `uvm_info(this.get_name(), "reset_phase", UVM_NONE)
        endtask
        task post_reset_phase(uvm_phase phase);
            super.post_reset_phase(phase);
            `uvm_info(this.get_name(), "post_reset_phase", UVM_NONE)
        endtask
        task pre_configure_phase(uvm_phase phase);
            super.pre_configure_phase(phase);
            `uvm_info(this.get_name(), "pre_configure_phase", UVM_NONE)
        endtask
        task configure_phase(uvm_phase phase);
            super.configure_phase(phase);
            `uvm_info(this.get_name(), "configure_phase", UVM_NONE)
        endtask
        task post_configure_phase(uvm_phase phase);
            super.post_configure_phase(phase);
            `uvm_info(this.get_name(), "post_configure_phase", UVM_NONE)
        endtask
        task pre_main_phase(uvm_phase phase);
            super.pre_main_phase(phase);
            `uvm_info(this.get_name(), "pre_main_phase", UVM_NONE)
        endtask
        task main_phase(uvm_phase phase);
            super.main_phase(phase);
            `uvm_info(this.get_name(), "main_phase", UVM_NONE)
        endtask
        task post_main_phase(uvm_phase phase);
            super.post_main_phase(phase);
            `uvm_info(this.get_name(), "post_main_phase", UVM_NONE)
        endtask
        task pre_shutdown_phase(uvm_phase phase);
            super.pre_shutdown_phase(phase);
            `uvm_info(this.get_name(), "pre_shutdown_phase", UVM_NONE)
        endtask
        task shutdown_phase(uvm_phase phase);
            super.shutdown_phase(phase);
            `uvm_info(this.get_name(), "shutdown_phase", UVM_NONE)
        endtask
        task post_shutdown_phase(uvm_phase phase);
            super.post_shutdown_phase(phase);
            `uvm_info(this.get_name(), "post_shutdown_phase", UVM_NONE)
        endtask
        function void extract_phase(uvm_phase phase);
            super.extract_phase(phase);
            `uvm_info(this.get_name(), "extract_phase", UVM_NONE)
        endfunction
        function void check_phase(uvm_phase phase);
            super.check_phase(phase);
            `uvm_info(this.get_name(), "check_phase", UVM_NONE)
        endfunction
        function void report_phase(uvm_phase phase);
            super.report_phase(phase);
            `uvm_info(this.get_name(), "report_phase", UVM_NONE)
        endfunction
        function void final_phase(uvm_phase phase);
            super.final_phase(phase);
            `uvm_info(this.get_name(), "final_phase", UVM_NONE)
        endfunction
    endclass

    initial begin
        run_test("sample_test");
    end
endmodule

まとめ

uvm_phaseの種類と実行順序についてまとめました。

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