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HanySalah |
//
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//----------------------------------------------------------------------
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// Copyright 2007-2011 Mentor Graphics Corporation
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// Copyright 2007-2010 Cadence Design Systems, Inc.
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// Copyright 2010 Synopsys, Inc.
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// All Rights Reserved Worldwide
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//
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// Licensed under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in
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// compliance with the License. You may obtain a copy of
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// the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in
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// writing, software distributed under the License is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See
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// the License for the specific language governing
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// permissions and limitations under the License.
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//----------------------------------------------------------------------
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// Title: UVM Run-Time Phases
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//
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// The run-time schedule is the pre-defined phase schedule
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// which runs concurrently to the global run phase.
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// By default, all s using the run-time schedule
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// are synchronized with respect to the pre-defined phases in the schedule.
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// It is possible for components to belong to different domains
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// in which case their schedules can be unsynchronized.
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//
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// The names of the UVM phases (which will be returned by get_name() for a
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// phase instance) match the class names specified below with the "uvm_"
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// and "_phase" removed. For example, the main phase corresponds to the
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// uvm_main_phase class below and has the name "main", which means that
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// the following can be used to call foo() at the start of main phase:
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//
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// | function void phase_started(uvm_phase phase) ;
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// | if (phase.get_name()=="main") foo() ;
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// | endfunction
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//
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// The run-time phases are executed in the sequence they are specified below.
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//
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//
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// Class: uvm_pre_reset_phase
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//
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// Before reset is asserted.
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//
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// that calls the
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// method. This phase starts at the
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// same time as the unless a user defined phase is inserted
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// in front of this phase.
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//
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// Upon Entry:
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// - Indicates that power has been applied but not necessarily valid or stable.
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// - There should not have been any active clock edges
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// before entry into this phase.
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//
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// Typical Uses:
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// - Wait for power good.
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// - Components connected to virtual interfaces should initialize
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// their output to X's or Z's.
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// - Initialize the clock signals to a valid value
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// - Assign reset signals to X (power-on reset).
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// - Wait for reset signal to be asserted
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// if not driven by the verification environment.
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//
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// Exit Criteria:
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// - Reset signal, if driven by the verification environment,
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// is ready to be asserted.
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// - Reset signal, if not driven by the verification environment, is asserted.
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//
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class uvm_pre_reset_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.pre_reset_phase(phase);
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endtask
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local static uvm_pre_reset_phase m_inst;
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static const string type_name = "uvm_pre_reset_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_pre_reset_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="pre_reset");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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//
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// Class: uvm_reset_phase
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//
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// Reset is asserted.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - Indicates that the hardware reset signal is ready to be asserted.
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//
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// Typical Uses:
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// - Assert reset signals.
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// - Components connected to virtual interfaces should drive their output
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// to their specified reset or idle value.
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// - Components and environments should initialize their state variables.
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// - Clock generators start generating active edges.
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// - De-assert the reset signal(s) just before exit.
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// - Wait for the reset signal(s) to be de-asserted.
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//
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// Exit Criteria:
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// - Reset signal has just been de-asserted.
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// - Main or base clock is working and stable.
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// - At least one active clock edge has occurred.
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// - Output signals and state variables have been initialized.
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//
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class uvm_reset_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.reset_phase(phase);
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endtask
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local static uvm_reset_phase m_inst;
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static const string type_name = "uvm_reset_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_reset_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="reset");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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// Class: uvm_post_reset_phase
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//
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// After reset is de-asserted.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - Indicates that the DUT reset signal has been de-asserted.
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//
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// Typical Uses:
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// - Components should start behavior appropriate for reset being inactive.
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// For example, components may start to transmit idle transactions
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// or interface training and rate negotiation.
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// This behavior typically continues beyond the end of this phase.
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//
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// Exit Criteria:
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// - The testbench and the DUT are in a known, active state.
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//
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class uvm_post_reset_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.post_reset_phase(phase);
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endtask
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local static uvm_post_reset_phase m_inst;
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static const string type_name = "uvm_post_reset_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_post_reset_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="post_reset");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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// Class: uvm_pre_configure_phase
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//
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// Before the DUT is configured by the SW.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - Indicates that the DUT has been completed reset
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// and is ready to be configured.
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//
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// Typical Uses:
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// - Procedurally modify the DUT configuration information as described
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// in the environment (and that will be eventually uploaded into the DUT).
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// - Wait for components required for DUT configuration to complete
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// training and rate negotiation.
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//
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// Exit Criteria:
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// - DUT configuration information is defined.
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//
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class uvm_pre_configure_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.pre_configure_phase(phase);
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endtask
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local static uvm_pre_configure_phase m_inst;
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static const string type_name = "uvm_pre_configure_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_pre_configure_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="pre_configure");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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// Class: uvm_configure_phase
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//
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// The SW configures the DUT.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - Indicates that the DUT is ready to be configured.
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//
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// Typical Uses:
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// - Components required for DUT configuration execute transactions normally.
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// - Set signals and program the DUT and memories
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// (e.g. read/write operations and sequences)
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// to match the desired configuration for the test and environment.
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//
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// Exit Criteria:
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// - The DUT has been configured and is ready to operate normally.
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//
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class uvm_configure_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.configure_phase(phase);
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endtask
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local static uvm_configure_phase m_inst;
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static const string type_name = "uvm_configure_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_configure_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="configure");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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// Class: uvm_post_configure_phase
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//
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// After the SW has configured the DUT.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - Indicates that the configuration information has been fully uploaded.
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//
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// Typical Uses:
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// - Wait for configuration information to fully propagate and take effect.
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// - Wait for components to complete training and rate negotiation.
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// - Enable the DUT.
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// - Sample DUT configuration coverage.
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//
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// Exit Criteria:
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// - The DUT has been fully configured and enabled
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// and is ready to start operating normally.
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//
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class uvm_post_configure_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.post_configure_phase(phase);
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endtask
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local static uvm_post_configure_phase m_inst;
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static const string type_name = "uvm_post_configure_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_post_configure_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="post_configure");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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// Class: uvm_pre_main_phase
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//
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// Before the primary test stimulus starts.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - Indicates that the DUT has been fully configured.
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//
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// Typical Uses:
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// - Wait for components to complete training and rate negotiation.
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//
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// Exit Criteria:
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// - All components have completed training and rate negotiation.
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// - All components are ready to generate and/or observe normal stimulus.
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//
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class uvm_pre_main_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.pre_main_phase(phase);
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endtask
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local static uvm_pre_main_phase m_inst;
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static const string type_name = "uvm_pre_main_phase";
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// Function: get
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// Returns the singleton phase handle
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static function uvm_pre_main_phase get();
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if(m_inst == null)
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m_inst = new;
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return m_inst;
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endfunction
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protected function new(string name="pre_main");
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super.new(name);
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endfunction
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virtual function string get_type_name();
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return type_name;
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endfunction
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endclass
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// Class: uvm_main_phase
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//
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// Primary test stimulus.
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//
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// that calls the
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// method.
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//
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// Upon Entry:
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// - The stimulus associated with the test objectives is ready to be applied.
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//
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// Typical Uses:
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363 |
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// - Components execute transactions normally.
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364 |
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// - Data stimulus sequences are started.
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365 |
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// - Wait for a time-out or certain amount of time,
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// or completion of stimulus sequences.
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//
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// Exit Criteria:
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369 |
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// - Enough stimulus has been applied to meet the primary
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// stimulus objective of the test.
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//
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class uvm_main_phase extends uvm_task_phase;
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virtual task exec_task(uvm_component comp, uvm_phase phase);
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comp.main_phase(phase);
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endtask
|
376 |
|
|
local static uvm_main_phase m_inst;
|
377 |
|
|
static const string type_name = "uvm_main_phase";
|
378 |
|
|
|
379 |
|
|
// Function: get
|
380 |
|
|
// Returns the singleton phase handle
|
381 |
|
|
static function uvm_main_phase get();
|
382 |
|
|
if(m_inst == null)
|
383 |
|
|
m_inst = new;
|
384 |
|
|
return m_inst;
|
385 |
|
|
endfunction
|
386 |
|
|
protected function new(string name="main");
|
387 |
|
|
super.new(name);
|
388 |
|
|
endfunction
|
389 |
|
|
virtual function string get_type_name();
|
390 |
|
|
return type_name;
|
391 |
|
|
endfunction
|
392 |
|
|
endclass
|
393 |
|
|
|
394 |
|
|
|
395 |
|
|
// Class: uvm_post_main_phase
|
396 |
|
|
//
|
397 |
|
|
// After enough of the primary test stimulus.
|
398 |
|
|
//
|
399 |
|
|
// that calls the
|
400 |
|
|
// method.
|
401 |
|
|
//
|
402 |
|
|
// Upon Entry:
|
403 |
|
|
// - The primary stimulus objective of the test has been met.
|
404 |
|
|
//
|
405 |
|
|
// Typical Uses:
|
406 |
|
|
// - Included for symmetry.
|
407 |
|
|
//
|
408 |
|
|
// Exit Criteria:
|
409 |
|
|
// - None.
|
410 |
|
|
//
|
411 |
|
|
class uvm_post_main_phase extends uvm_task_phase;
|
412 |
|
|
virtual task exec_task(uvm_component comp, uvm_phase phase);
|
413 |
|
|
comp.post_main_phase(phase);
|
414 |
|
|
endtask
|
415 |
|
|
local static uvm_post_main_phase m_inst;
|
416 |
|
|
static const string type_name = "uvm_post_main_phase";
|
417 |
|
|
|
418 |
|
|
// Function: get
|
419 |
|
|
// Returns the singleton phase handle
|
420 |
|
|
static function uvm_post_main_phase get();
|
421 |
|
|
if(m_inst == null)
|
422 |
|
|
m_inst = new;
|
423 |
|
|
return m_inst;
|
424 |
|
|
endfunction
|
425 |
|
|
protected function new(string name="post_main");
|
426 |
|
|
super.new(name);
|
427 |
|
|
endfunction
|
428 |
|
|
virtual function string get_type_name();
|
429 |
|
|
return type_name;
|
430 |
|
|
endfunction
|
431 |
|
|
endclass
|
432 |
|
|
|
433 |
|
|
|
434 |
|
|
// Class: uvm_pre_shutdown_phase
|
435 |
|
|
//
|
436 |
|
|
// Before things settle down.
|
437 |
|
|
//
|
438 |
|
|
// that calls the
|
439 |
|
|
// method.
|
440 |
|
|
//
|
441 |
|
|
// Upon Entry:
|
442 |
|
|
// - None.
|
443 |
|
|
//
|
444 |
|
|
// Typical Uses:
|
445 |
|
|
// - Included for symmetry.
|
446 |
|
|
//
|
447 |
|
|
// Exit Criteria:
|
448 |
|
|
// - None.
|
449 |
|
|
//
|
450 |
|
|
class uvm_pre_shutdown_phase extends uvm_task_phase;
|
451 |
|
|
virtual task exec_task(uvm_component comp, uvm_phase phase);
|
452 |
|
|
comp.pre_shutdown_phase(phase);
|
453 |
|
|
endtask
|
454 |
|
|
local static uvm_pre_shutdown_phase m_inst;
|
455 |
|
|
static const string type_name = "uvm_pre_shutdown_phase";
|
456 |
|
|
|
457 |
|
|
// Function: get
|
458 |
|
|
// Returns the singleton phase handle
|
459 |
|
|
static function uvm_pre_shutdown_phase get();
|
460 |
|
|
if(m_inst == null)
|
461 |
|
|
m_inst = new;
|
462 |
|
|
return m_inst;
|
463 |
|
|
endfunction
|
464 |
|
|
protected function new(string name="pre_shutdown");
|
465 |
|
|
super.new(name);
|
466 |
|
|
endfunction
|
467 |
|
|
virtual function string get_type_name();
|
468 |
|
|
return type_name;
|
469 |
|
|
endfunction
|
470 |
|
|
endclass
|
471 |
|
|
|
472 |
|
|
|
473 |
|
|
// Class: uvm_shutdown_phase
|
474 |
|
|
//
|
475 |
|
|
// Letting things settle down.
|
476 |
|
|
//
|
477 |
|
|
// that calls the
|
478 |
|
|
// method.
|
479 |
|
|
//
|
480 |
|
|
// Upon Entry:
|
481 |
|
|
// - None.
|
482 |
|
|
//
|
483 |
|
|
// Typical Uses:
|
484 |
|
|
// - Wait for all data to be drained out of the DUT.
|
485 |
|
|
// - Extract data still buffered in the DUT,
|
486 |
|
|
// usually through read/write operations or sequences.
|
487 |
|
|
//
|
488 |
|
|
// Exit Criteria:
|
489 |
|
|
// - All data has been drained or extracted from the DUT.
|
490 |
|
|
// - All interfaces are idle.
|
491 |
|
|
//
|
492 |
|
|
class uvm_shutdown_phase extends uvm_task_phase;
|
493 |
|
|
virtual task exec_task(uvm_component comp, uvm_phase phase);
|
494 |
|
|
comp.shutdown_phase(phase);
|
495 |
|
|
endtask
|
496 |
|
|
local static uvm_shutdown_phase m_inst;
|
497 |
|
|
static const string type_name = "uvm_shutdown_phase";
|
498 |
|
|
|
499 |
|
|
// Function: get
|
500 |
|
|
// Returns the singleton phase handle
|
501 |
|
|
static function uvm_shutdown_phase get();
|
502 |
|
|
if(m_inst == null)
|
503 |
|
|
m_inst = new;
|
504 |
|
|
return m_inst;
|
505 |
|
|
endfunction
|
506 |
|
|
protected function new(string name="shutdown");
|
507 |
|
|
super.new(name);
|
508 |
|
|
endfunction
|
509 |
|
|
virtual function string get_type_name();
|
510 |
|
|
return type_name;
|
511 |
|
|
endfunction
|
512 |
|
|
endclass
|
513 |
|
|
|
514 |
|
|
|
515 |
|
|
// Class: uvm_post_shutdown_phase
|
516 |
|
|
//
|
517 |
|
|
// After things have settled down.
|
518 |
|
|
//
|
519 |
|
|
// that calls the
|
520 |
|
|
// method. The end of this phase is
|
521 |
|
|
// synchronized to the end of the phase unless a user defined
|
522 |
|
|
// phase is added after this phase.
|
523 |
|
|
//
|
524 |
|
|
// Upon Entry:
|
525 |
|
|
// - No more "data" stimulus is applied to the DUT.
|
526 |
|
|
//
|
527 |
|
|
// Typical Uses:
|
528 |
|
|
// - Perform final checks that require run-time access to the DUT
|
529 |
|
|
// (e.g. read accounting registers or dump the content of memories).
|
530 |
|
|
//
|
531 |
|
|
// Exit Criteria:
|
532 |
|
|
// - All run-time checks have been satisfied.
|
533 |
|
|
// - The phase is ready to end.
|
534 |
|
|
//
|
535 |
|
|
class uvm_post_shutdown_phase extends uvm_task_phase;
|
536 |
|
|
virtual task exec_task(uvm_component comp, uvm_phase phase);
|
537 |
|
|
comp.post_shutdown_phase(phase);
|
538 |
|
|
endtask
|
539 |
|
|
local static uvm_post_shutdown_phase m_inst;
|
540 |
|
|
static const string type_name = "uvm_post_shutdown_phase";
|
541 |
|
|
|
542 |
|
|
// Function: get
|
543 |
|
|
// Returns the singleton phase handle
|
544 |
|
|
static function uvm_post_shutdown_phase get();
|
545 |
|
|
if(m_inst == null)
|
546 |
|
|
m_inst = new;
|
547 |
|
|
return m_inst;
|
548 |
|
|
endfunction
|
549 |
|
|
protected function new(string name="post_shutdown");
|
550 |
|
|
super.new(name);
|
551 |
|
|
endfunction
|
552 |
|
|
virtual function string get_type_name();
|
553 |
|
|
return type_name;
|
554 |
|
|
endfunction
|
555 |
|
|
endclass
|