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Merged PR 118720: WDT in top-level UVM
UVM updates and sequence to: 1. Enable WDT in cascade mode with default timeout values during ROM execution 2. Test cascade mode (with t1 timeout) and independent mode randomly during runtime TODO: 1. Test t2 expiry in cascade mode which triggers NMI (test hangs due to RDC issues when a reset is issued to service the NMI) Related work items: #468167, #468170
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179 changes: 179 additions & 0 deletions
179
...mplate_output/project_benches/caliptra_top/tb/sequences/src/caliptra_top_wdt_sequence.svh
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| //---------------------------------------------------------------------- | ||
| // Created with uvmf_gen version 2022.3 | ||
| //---------------------------------------------------------------------- | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
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| // pragma uvmf custom header begin | ||
| // pragma uvmf custom header end | ||
| //---------------------------------------------------------------------- | ||
| // | ||
| //---------------------------------------------------------------------- | ||
| // | ||
| // DESCRIPTION: This file contains the top level sequence used in caliptra_top_wdt_test. | ||
| // | ||
| //---------------------------------------------------------------------- | ||
| //---------------------------------------------------------------------- | ||
| // | ||
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| class caliptra_top_wdt_sequence extends caliptra_top_bench_sequence_base; | ||
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| `uvm_object_utils( caliptra_top_wdt_sequence ); | ||
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| rand soc_ifc_env_bringup_sequence_t soc_ifc_env_bringup_seq; | ||
| rand soc_ifc_env_pauser_init_sequence_t soc_ifc_env_pauser_init_seq; | ||
| rand soc_ifc_env_mbox_real_fw_sequence_t soc_ifc_env_mbox_fmc_seq; | ||
| rand soc_ifc_env_mbox_real_fw_sequence_t soc_ifc_env_mbox_rt_seq; | ||
| rand soc_ifc_env_reset_warm_sequence_t soc_ifc_env_reset_warm_seq; | ||
| rand soc_ifc_env_reset_cold_sequence_t soc_ifc_env_reset_cold_seq; | ||
| // Local handle to register model for convenience | ||
| soc_ifc_reg_model_top reg_model; | ||
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| rand int iteration_count; | ||
| int sts_rsp_count = 0; | ||
| int rsp_count = 0; | ||
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| function new(string name = "" ); | ||
| super.new(name); | ||
| reg_model = top_configuration.soc_ifc_subenv_config.soc_ifc_rm; | ||
| endfunction | ||
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| // **************************************************************************** | ||
| virtual task run_firmware_init(soc_ifc_env_mbox_real_fw_sequence_t fmc_seq, soc_ifc_env_mbox_real_fw_sequence_t rt_seq); | ||
| bit ready_for_fw = 0; | ||
| bit ready_for_rt = 0; | ||
| while (!ready_for_fw) begin | ||
| while(!sts_rsp_count)soc_ifc_subenv_soc_ifc_ctrl_agent_config.wait_for_num_clocks(1); // Wait for new status updates | ||
| `uvm_info("CALIPTRA_TOP_WDT_TEST", "Observed status response, checking contents", UVM_DEBUG) | ||
| sts_rsp_count = 0; // We only care about the latest rsp, so even if count > 1, reset back to 0 | ||
| ready_for_fw = soc_ifc_subenv_soc_ifc_status_agent_responder_seq.rsp.ready_for_fw_push; | ||
| end | ||
| if (!fmc_seq.randomize() with { fmc_seq.mbox_op_rand.cmd == mbox_cmd_e'(MBOX_CMD_FMC_UPDATE); }) | ||
| `uvm_fatal("CALIPTRA_TOP_WDT_TEST", "caliptra_top_wdt_sequence::body() - fmc_seq randomization failed") | ||
| fmc_seq.start(top_configuration.soc_ifc_subenv_config.vsqr); | ||
| if (!rt_seq.randomize() with { rt_seq.mbox_op_rand.cmd == mbox_cmd_e'(MBOX_CMD_RT_UPDATE); }) | ||
| `uvm_fatal("CALIPTRA_TOP_WDT_TEST", "caliptra_top_wdt_sequence::body() - rt_seq randomization failed") | ||
| rt_seq.start(top_configuration.soc_ifc_subenv_config.vsqr); | ||
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| // Wait for RT image to set the ready_for_rt bit | ||
| while (!ready_for_rt) begin | ||
| while(!sts_rsp_count)soc_ifc_subenv_soc_ifc_ctrl_agent_config.wait_for_num_clocks(1); // Wait for new status updates | ||
| `uvm_info("CALIPTRA_TOP_WDT_TEST", "Observed status response, checking contents", UVM_DEBUG) | ||
| sts_rsp_count = 0; // We only care about the latest rsp, so even if count > 1, reset back to 0 | ||
| ready_for_rt = soc_ifc_subenv_soc_ifc_status_agent_responder_seq.rsp.ready_for_runtime; | ||
| end | ||
| endtask | ||
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| // **************************************************************************** | ||
| virtual task body(); | ||
| // pragma uvmf custom body begin | ||
| // Construct sequences here | ||
| bit pauser_valid_initialized = 1'b0; | ||
| uvm_object obj; | ||
| int ii; | ||
| bit nmi_intr; | ||
| bit hw_error_fatal; | ||
| uvm_status_e reg_sts; | ||
| uvm_reg_data_t wdt_status_data; | ||
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| caliptra_top_env_seq = caliptra_top_env_sequence_base_t::type_id::create("caliptra_top_env_seq"); | ||
| soc_ifc_env_bringup_seq = soc_ifc_env_bringup_sequence_t::type_id::create("soc_ifc_env_bringup_seq"); | ||
| soc_ifc_env_pauser_init_seq = soc_ifc_env_pauser_init_sequence_t::type_id::create("soc_ifc_env_pauser_init_seq"); | ||
| soc_ifc_env_mbox_fmc_seq = soc_ifc_env_mbox_real_fw_sequence_t::type_id::create("soc_ifc_env_mbox_fmc_seq"); | ||
| soc_ifc_env_mbox_rt_seq = soc_ifc_env_mbox_real_fw_sequence_t::type_id::create("soc_ifc_env_mbox_rt_seq"); | ||
| soc_ifc_env_reset_warm_seq = soc_ifc_env_reset_warm_sequence_t::type_id::create("soc_ifc_env_reset_warm_seq"); | ||
| soc_ifc_env_reset_cold_seq = soc_ifc_env_reset_cold_sequence_t::type_id::create("soc_ifc_env_reset_cold_seq"); | ||
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| soc_ifc_subenv_soc_ifc_ctrl_agent_random_seq = soc_ifc_subenv_soc_ifc_ctrl_agent_random_seq_t::type_id::create("soc_ifc_subenv_soc_ifc_ctrl_agent_random_seq"); | ||
| soc_ifc_subenv_soc_ifc_status_agent_responder_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq_t::type_id::create("soc_ifc_subenv_soc_ifc_status_agent_responder_seq"); | ||
| soc_ifc_subenv_mbox_sram_agent_responder_seq = soc_ifc_subenv_mbox_sram_agent_responder_seq_t::type_id::create("soc_ifc_subenv_mbox_sram_agent_responder_seq"); | ||
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| // Handle to the responder sequence for getting response transactions | ||
| soc_ifc_env_bringup_seq.soc_ifc_status_agent_rsp_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq; | ||
| soc_ifc_env_pauser_init_seq.soc_ifc_status_agent_rsp_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq; | ||
| soc_ifc_env_mbox_fmc_seq.soc_ifc_status_agent_rsp_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq; | ||
| soc_ifc_env_mbox_rt_seq.soc_ifc_status_agent_rsp_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq; | ||
| soc_ifc_env_reset_warm_seq.soc_ifc_status_agent_rsp_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq; | ||
| soc_ifc_env_reset_cold_seq.soc_ifc_status_agent_rsp_seq = soc_ifc_subenv_soc_ifc_status_agent_responder_seq; | ||
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| reg_model.reset(); | ||
| // Start RESPONDER sequences here | ||
| fork | ||
| soc_ifc_subenv_soc_ifc_status_agent_responder_seq.start(soc_ifc_subenv_soc_ifc_status_agent_sequencer); | ||
| soc_ifc_subenv_mbox_sram_agent_responder_seq.start(soc_ifc_subenv_mbox_sram_agent_sequencer); | ||
| join_none | ||
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| fork | ||
| forever @(soc_ifc_subenv_soc_ifc_status_agent_responder_seq.new_rsp) begin | ||
| sts_rsp_count++; | ||
| rsp_count++; | ||
| end | ||
| join_none | ||
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| if(!soc_ifc_env_bringup_seq.randomize()) | ||
| `uvm_fatal("CALIPTRA_TOP_WDT_TEST", "caliptra_top_wdt_sequence::body() - soc_ifc_env_bringup_seq randomization failed") | ||
| soc_ifc_env_bringup_seq.start(top_configuration.soc_ifc_subenv_config.vsqr); | ||
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| `uvm_info("CALIPTRA_TOP_BRINGUP", "SoC completed poweron and observed reset deassertion to system", UVM_LOW) | ||
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| run_firmware_init(soc_ifc_env_mbox_fmc_seq,soc_ifc_env_mbox_rt_seq); | ||
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| // //-------------------------------- | ||
| // //Wait for NMI to occur - TODO | ||
| // `uvm_info("KNU", $sformatf("FW init done, hw_error_fatal = %0d", hw_error_fatal),UVM_MEDIUM); | ||
| // while (!hw_error_fatal) begin | ||
| // `uvm_info("KNU", "Inside while loop",UVM_MEDIUM); | ||
| // while(!rsp_count)soc_ifc_subenv_soc_ifc_ctrl_agent_config.wait_for_num_clocks(1); // Wait for new status updates | ||
| // `uvm_info("CALIPTRA_TOP_WDT_TEST", "Observed status response, checking contents", UVM_MEDIUM) | ||
| // `uvm_info("CALIPTRA_TOP_WDT_TEST", soc_ifc_subenv_soc_ifc_status_agent_responder_seq.rsp.convert2string(), UVM_MEDIUM) | ||
| // // `uvm_info("CALIPTRA_TOP_WDT_TEST", $sformatf("response error fatal = %0d",soc_ifc_subenv_soc_ifc_status_agent_responder_seq.rsp.cptra_error_fatal_intr_pending), UVM_MEDIUM) | ||
| // rsp_count = 0; // We only care about the latest rsp, so even if count > 1, reset back to 0 | ||
| // hw_error_fatal = soc_ifc_subenv_soc_ifc_status_agent_responder_seq.rsp.cptra_error_fatal_intr_pending; | ||
| // end | ||
| // `uvm_info("KNU", $sformatf("Outside while loop, hw_error_fatal = %h", hw_error_fatal),UVM_MEDIUM); | ||
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| // // //TODO: add APB seq to read hw_error_fatal reg to see if it's NMI or not | ||
| // `uvm_info("CALIPTRA_TOP_WDT_TEST", "Encountered NMI, issuing reset", UVM_MEDIUM); | ||
| // //soc_ifc_env_bringup_seq.start(top_configuration.soc_ifc_subenv_config.vsqr); | ||
| // reg_model.reset(); //TODO needed? | ||
| // // if (!soc_ifc_env_reset_cold_seq.randomize()) | ||
| // // `uvm_fatal("CALIPTRA_TOP_WDT_TEST", "caliptra_top_wdt_sequence::body() - soc_ifc_env_bringup_seq randomization failed") | ||
| // // soc_ifc_env_reset_cold_seq.start(top_configuration.soc_ifc_subenv_config.vsqr); | ||
| // // reg_model.reset(); //TODO needed? | ||
| // if(!soc_ifc_env_bringup_seq.randomize()) | ||
| // `uvm_fatal("CALIPTRA_TOP_WDT_TEST", "caliptra_top_wdt_sequence::body() - soc_ifc_env_bringup_seq randomization failed") | ||
| // soc_ifc_env_bringup_seq.start(top_configuration.soc_ifc_subenv_config.vsqr); | ||
| //-------------------------------- | ||
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| // UVMF_CHANGE_ME : Extend the simulation XXX number of clocks after | ||
| // the last sequence to allow for the last sequence item to flow | ||
| // through the design. | ||
| fork | ||
| soc_ifc_subenv_soc_ifc_ctrl_agent_config.wait_for_num_clocks(10000); | ||
| soc_ifc_subenv_cptra_ctrl_agent_config.wait_for_num_clocks(10000); | ||
| soc_ifc_subenv_soc_ifc_status_agent_config.wait_for_num_clocks(10000); | ||
| soc_ifc_subenv_cptra_status_agent_config.wait_for_num_clocks(10000); | ||
| soc_ifc_subenv_mbox_sram_agent_config.wait_for_num_clocks(10000); | ||
| join | ||
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| // pragma uvmf custom body end | ||
| endtask | ||
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| endclass | ||
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| // pragma uvmf custom external begin | ||
| // pragma uvmf custom external end | ||
|
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