Update lowrisc_ip to lowRISC/opentitan@d268f271f4

Update code from upstream repository https://github.com/lowRISC/opentitan to revision d268f271f4f75aeb8f3bf9624a497ae5bfb9c47e * [rtl] MuBi encoding of iCache memory ctrl signals (Pascal Nasahl) * [sram_ctrl] Add readback feature (Pascal Nasahl) * [fpv] Tweak report headers to match Jasper version (Rupert Swarbrick) * [prim_pad_wrapper,rtl] Change input enable to active-high (Andreas Kurth) * [hmac/rtl] Wait for digest of complete block when stopping (Martin Velay) * [prim_sha2_pad,rtl] Signal msg feed complete also when stopping (Andreas Kurth) * [prim_sha2_pad,rtl] Go to idle (without padding) when told to stop (Andreas Kurth) * [prim_sha2_pad,rtl] Refactor comparison on tx_count and msg len into signal (Andreas Kurth) * [prim_sha2_pad,rtl] Fix setting of digest mode when continuing (Andreas Kurth) * [hmac/prim_2,rtl] Do not clear redundant digest values (Ghada Dessouky) * [prim,fpv] Tweak how a parameter gets used in some assertions (Rupert Swarbrick) * [prim,fpv] Fix trivial lint warning in prim_fifo_sync_assert_fpv (Rupert Swarbrick) * [prim,rtl] Fix trivial lint warning in prim_fifo_sync (Rupert Swarbrick) * Launcher Modification (Youming Lu) * [top_earlgrey,pinmux] Add input disable attribute for non-manual pads (Andreas Kurth) * [dv] Add more prints to bit bash sequence (Rupert Swarbrick) * [ipgen,flash_ctrl] Fix core files (Guillermo Maturana) * [prim,rtl] Avoid unnecessary check in prim_esc_receiver.sv (Rupert Swarbrick) * [prim,fpv] Use PossibleActions param in prim_esc_receiver (Rupert Swarbrick) * [prim_diff_decode] Use `prim_xnor2` to detect integrity issue (Andreas Kurth) * [prim] Fix typo'd loop increment (James Wainwright) * [hmac/prim_sha2,rtl] Implement SW error for invalid HMAC config (Ghada Dessouky) * [rom] Remove real and fake key targets. (Miguel Osorio) * [prim_sha2,rtl/dv] Fix secret value wiping (Ghada Dessouky) * [prim,rtl,fpv] Fix typo in assertion in prim_alert_receiver (Rupert Swarbrick) * [fpv,prim] Drop prim_count_expected_failure.hjson (Rupert Swarbrick) * [fpv,prim] Generalise from DecrNeverTrue to listing possible actions (Rupert Swarbrick) * [prim,fpv] Correct assertions for commit_i input (Rupert Swarbrick) * [prim,fpv] Rephrase some "backwards" assertions in prim_count (Rupert Swarbrick) * [prim,fpv] Properly "waive" some unreachable prim_count assertions (Rupert Swarbrick) * [prim,fpv] Fix width of FPV variable in prim_arbiter_ppc.sv (Rupert Swarbrick) * [prim,fpv] Rephrase prim_count error assertions (Rupert Swarbrick) * [prim,fpv] Fix port list in prim_count_tb (Rupert Swarbrick) * [prim_ram_1p_scr] Align documentation with actual implementation (Pirmin Vogel) * [prim, rom_ctrl] Increase number of PRINCE rounds for improved security (Pirmin Vogel) * [prim,fpv] Make file structure slightly clearer (Rupert Swarbrick) * [prim,fpv] Shorten a variable name (prim_hier -> hier) (Rupert Swarbrick) * [prim,fpv] Tidy up and document some FPV macros (Rupert Swarbrick) * [dvsim,lint] Fix bug in duplicate detection in lint parser (Rupert Swarbrick) * [rtl,comments] Fix some comments (Guillermo Maturana) * [dv,prim] Clarification of reset behavior (Adrian Lees) * [ast] Add dependency in fileset_partner to select correct ast_pkg (Sharon Topaz) * [prim,fpv] Only allow unconstrained counters in prim_count FPV (Rupert Swarbrick) * [dvsim] Split and rename Modes.py (Rupert Swarbrick) * [prim,dv] Tweak ASSERT_FINAL to be a no-op if FPV enabled (Rupert Swarbrick) * [prim,tlul,rtl] Explicitly cast a "1" to specific number of bits (Rupert Swarbrick) * [dvsim] Fix plurals in type names in Modes.py (Rupert Swarbrick) * [dvsim] Move find_mode and find_and_merge_modes out of Modes class (Rupert Swarbrick) * [dvsim] Die more cleanly on an invalid use of merge_mode (Rupert Swarbrick) * [dvsim] Get rid of "mname" field in Modes.py (Rupert Swarbrick) * [dvsim] Simplify named attribute lookup in Modes.py (Rupert Swarbrick) * [dvsim] Get rid of pretty print magic in Modes.py (Rupert Swarbrick) * [dvsim] Strengthen typing and simplify printing for modes in SimCfg (Rupert Swarbrick) * [dvsim] Slightly tidy up SimCfg._print_list (Rupert Swarbrick) * [dvsim] Get rid of an unused dictionary in OneShotCfg.py (Rupert Swarbrick) * Add the project name to the copyright header (Michael Munday) * Fix or waive Python lint errors and warnings (Pirmin Vogel) * Remove trailing whitespaces (Pirmin Vogel) * [dv,mem_bkdr] Fix handling of multiple tiles in sram (Guillermo Maturana) * [hmac] Coding style and minor fixes (Ghada Dessouky) * [dv] Remove phase argument from monitor's collect_trans (Rupert Swarbrick) * [prim_fifo_sync_cnt] Minor code cleanup (Andreas Kurth) * [dv,mem_bkdr] Fix digest calculation for hw_cfg0 (Guillermo Maturana) * [prim_fifo_sync_cnt] Fix signedness of Depth parameter (Andreas Kurth) * [prim_fifo_sync] Keep wraparound pointers contained within `prim_fifo_sync_cnt` (Andreas Kurth) * [prim_fifo_sync] Move pointer and depth calculation to `prim_fifo_sync_cnt` (Andreas Kurth) * [prim_fifo_sync] Remove out-commented RTL code (Andreas Kurth) * [prim_fifo_sync_cnt] Improve module and parameter documentation (Andreas Kurth) * [lint] Demote licence warning in AscentLint parser (Rupert Swarbrick) * Revert "[dv] Remove phase argument from monitor's collect_trans" (Rupert Swarbrick) * [dv] Fix parameter types in dv_base_mubi_cov.sv (Rupert Swarbrick) * [dv] Remove phase argument from monitor's collect_trans (Rupert Swarbrick) * [dv, xcelium] Use detachable reports to avoid CORS (Elliot Baptist) * [otp_ctrl] Add fuse for late debug enable mechanism (Michael Schaffner) * [prim] Add support for MuBi's up to 32bit (Michael Schaffner) * [otp_ctrl] Increase Hamming distance in OTP commands (Michael Schaffner) * [dv] Add checks to set_freq_*hz (Rupert Swarbrick) * [dv] Fix more timeout comments with wrong units (Elliot Baptist) * Make .core files pass FuseSoC 2 schema validator (Olof Kindgren) * [dvsim] Run deepcopy to work around memory usage bug (Rupert Swarbrick) * [dvsim] Make global_val handling a bit clearer (Rupert Swarbrick) * [prim_sha2,rtl] Add key_length type and change type encodings (Ghada Dessouky) * [dv,sram_ctrl] Fix a few failing tests (Guillermo Maturana) * [topgen] Add field to specify status IRQ default behavior (Michael Schaffner) * [dv] Update clear_all_interrupts to support status type (Michael Schaffner) Signed-off-by: Pascal Nasahl <[email protected]>
lowRISC · May 28, 2024 · f99109d · f99109d
1 parent 50322d4
commit f99109d
Show file tree

Hide file tree

Showing 836 changed files with 4,301 additions and 2,230 deletions.
diff --git a/vendor/lowrisc_ip.lock.hjson b/vendor/lowrisc_ip.lock.hjson
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 
@@ -9,6 +9,6 @@
   upstream:
   {
     url: https://github.com/lowRISC/opentitan
-    rev: e0c40265019aa0c74e6903d3b3a144c48a3815ec
+    rev: d268f271f4f75aeb8f3bf9624a497ae5bfb9c47e
   }
 }
diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/clk_if.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/clk_if.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/clk_rst_if.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/clk_rst_if.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 
@@ -136,13 +136,15 @@ interface clk_rst_if #(
 
   // set the clk frequency in khz
   function automatic void set_freq_khz(int freq_khz);
+    `DV_CHECK_FATAL(freq_khz > 0, , msg_id)
     clk_freq_mhz = $itor(freq_khz) / 1000;
     clk_period_ps = 1000_000 / clk_freq_mhz;
     recompute = 1'b1;
   endfunction
 
   // set the clk frequency in mhz
   function automatic void set_freq_mhz(int freq_mhz);
+    `DV_CHECK_FATAL(freq_mhz > 0, , msg_id)
     set_freq_khz(freq_mhz * 1000);
   endfunction
 

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/common_ifs.core b/vendor/lowrisc_ip/dv/sv/common_ifs/common_ifs.core
@@ -1,5 +1,5 @@
 CAPI=2:
-# Copyright lowRISC contributors.
+# Copyright lowRISC contributors (OpenTitan project).
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:dv:common_ifs"

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/common_ifs_pkg.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/common_ifs_pkg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/entropy_subsys_fifo_exception_if.core b/vendor/lowrisc_ip/dv/sv/common_ifs/entropy_subsys_fifo_exception_if.core
@@ -1,5 +1,5 @@
 CAPI=2:
-# Copyright lowRISC contributors.
+# Copyright lowRISC contributors (OpenTitan project).
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:dv:entropy_subsys_fifo_exception_if"

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/entropy_subsys_fifo_exception_if.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/entropy_subsys_fifo_exception_if.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/entropy_subsys_fifo_exception_pkg.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/entropy_subsys_fifo_exception_pkg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/pins_if.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/pins_if.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/pins_ifs.core b/vendor/lowrisc_ip/dv/sv/common_ifs/pins_ifs.core
@@ -1,5 +1,5 @@
 CAPI=2:
-# Copyright lowRISC contributors.
+# Copyright lowRISC contributors (OpenTitan project).
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:dv:pins_if"

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/rst_shadowed_if.core b/vendor/lowrisc_ip/dv/sv/common_ifs/rst_shadowed_if.core
@@ -1,5 +1,5 @@
 CAPI=2:
-# Copyright lowRISC contributors.
+# Copyright lowRISC contributors (OpenTitan project).
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:dv:rst_shadowed_if"

diff --git a/vendor/lowrisc_ip/dv/sv/common_ifs/rst_shadowed_if.sv b/vendor/lowrisc_ip/dv/sv/common_ifs/rst_shadowed_if.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/csr_utils/csr_seq_lib.sv b/vendor/lowrisc_ip/dv/sv/csr_utils/csr_seq_lib.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 
@@ -329,7 +329,19 @@ class csr_bit_bash_seq extends csr_base_seq;
   `uvm_object_new
 
   virtual task body();
+    int unsigned total_count = test_csrs.size();
+    int unsigned done_count = 0;
+
+    `uvm_info(`gtn,
+              $sformatf("Running bit bash sequence for %0d registers", total_count),
+              UVM_MEDIUM)
     foreach (test_csrs[i]) begin
+      done_count++;
+      `uvm_info(`gtn,
+                $sformatf("Verifying register bit bash for %0s (register %0d/%0d)",
+                          test_csrs[i].get_full_name(), done_count, total_count),
+                UVM_MEDIUM)
+
       // check if parent block or register is excluded from write
       if (is_excl(test_csrs[i], CsrExclWrite, CsrBitBashTest) ||
           is_excl(test_csrs[i], CsrExclWriteCheck, CsrBitBashTest)) begin
@@ -338,9 +350,6 @@ class csr_bit_bash_seq extends csr_base_seq;
         continue;
       end
 
-      `uvm_info(`gtn, $sformatf("Verifying register bit bash for %0s",
-                test_csrs[i].get_full_name()), UVM_MEDIUM)
-
       begin
         uvm_reg_field   fields[$];
         string          mode[`UVM_REG_DATA_WIDTH];

diff --git a/vendor/lowrisc_ip/dv/sv/csr_utils/csr_utils.core b/vendor/lowrisc_ip/dv/sv/csr_utils/csr_utils.core
@@ -1,5 +1,5 @@
 CAPI=2:
-# Copyright lowRISC contributors.
+# Copyright lowRISC contributors (OpenTitan project).
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:dv:csr_utils"

diff --git a/vendor/lowrisc_ip/dv/sv/csr_utils/csr_utils_pkg.sv b/vendor/lowrisc_ip/dv/sv/csr_utils/csr_utils_pkg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 
@@ -26,10 +26,14 @@ package csr_utils_pkg;
 
   function automatic void increment_outstanding_access();
     outstanding_accesses++;
+    `uvm_info("csr_utils_pkg", $sformatf("increment_outstanding_access %0d", outstanding_accesses),
+              UVM_HIGH)
   endfunction
 
   function automatic void decrement_outstanding_access();
     outstanding_accesses--;
+    `uvm_info("csr_utils_pkg", $sformatf("decrement_outstanding_access %0d", outstanding_accesses),
+              UVM_HIGH)
   endfunction
 
   task automatic wait_no_outstanding_access();
@@ -549,6 +553,7 @@ package csr_utils_pkg;
         fork
           while (!under_reset) begin
             if (spinwait_delay_ns) #(spinwait_delay_ns * 1ns);
+            `uvm_info("csr_utils_pkg", "In csr_spinwait", verbosity)
             csr_rd(.ptr(ptr), .value(read_data), .check(check), .path(path),
                    .blocking(1), .map(map), .user_ftdr(user_ftdr), .backdoor(backdoor));
             `uvm_info(msg_id, $sformatf("ptr %0s == 0x%0h",

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/csr_excl_item.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/csr_excl_item.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_lockable_field_cov.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_lockable_field_cov.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_mem.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_mem.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_mubi_cov.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_mubi_cov.sv
@@ -1,12 +1,11 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //
 // coverage object for a fixed width mubi
 class mubi_cov #(parameter int Width = 4,
-                parameter int ValueTrue = prim_mubi_pkg::MuBi4True,
-                parameter int ValueFalse = prim_mubi_pkg::MuBi4False
-                ) extends uvm_object;
+                 parameter int unsigned ValueTrue = prim_mubi_pkg::MuBi4True,
+                 parameter int unsigned ValueFalse = prim_mubi_pkg::MuBi4False) extends uvm_object;
   `uvm_object_param_utils(mubi_cov #(Width, ValueTrue, ValueFalse))
 
   // Collect true, false and at least N other values (N = Width)
@@ -43,6 +42,18 @@ typedef mubi_cov #(.Width(12),
 typedef mubi_cov #(.Width(16),
                    .ValueTrue(prim_mubi_pkg::MuBi16True),
                    .ValueFalse(prim_mubi_pkg::MuBi16False)) mubi16_cov;
+typedef mubi_cov #(.Width(20),
+                   .ValueTrue(prim_mubi_pkg::MuBi20True),
+                   .ValueFalse(prim_mubi_pkg::MuBi20False)) mubi20_cov;
+typedef mubi_cov #(.Width(24),
+                   .ValueTrue(prim_mubi_pkg::MuBi24True),
+                   .ValueFalse(prim_mubi_pkg::MuBi24False)) mubi24_cov;
+typedef mubi_cov #(.Width(28),
+                   .ValueTrue(prim_mubi_pkg::MuBi28True),
+                   .ValueFalse(prim_mubi_pkg::MuBi28False)) mubi28_cov;
+typedef mubi_cov #(.Width(32),
+                   .ValueTrue(prim_mubi_pkg::MuBi32True),
+                   .ValueFalse(prim_mubi_pkg::MuBi32False)) mubi32_cov;
 
 // a mubi coverage object, which allows to dynamically select the width of mubi
 class dv_base_mubi_cov extends uvm_object;
@@ -53,6 +64,10 @@ class dv_base_mubi_cov extends uvm_object;
   mubi8_cov m_mubi8_cov;
   mubi12_cov m_mubi12_cov;
   mubi16_cov m_mubi16_cov;
+  mubi20_cov m_mubi20_cov;
+  mubi24_cov m_mubi24_cov;
+  mubi28_cov m_mubi28_cov;
+  mubi32_cov m_mubi32_cov;
 
   `uvm_object_utils(dv_base_mubi_cov)
   `uvm_object_new
@@ -70,6 +85,10 @@ class dv_base_mubi_cov extends uvm_object;
       8:  m_mubi8_cov  = mubi8_cov::type_id::create(cov_name);
       12: m_mubi12_cov = mubi12_cov::type_id::create(cov_name);
       16: m_mubi16_cov = mubi16_cov::type_id::create(cov_name);
+      20: m_mubi20_cov = mubi20_cov::type_id::create(cov_name);
+      24: m_mubi24_cov = mubi24_cov::type_id::create(cov_name);
+      28: m_mubi28_cov = mubi28_cov::type_id::create(cov_name);
+      32: m_mubi32_cov = mubi32_cov::type_id::create(cov_name);
       default: `uvm_fatal(`gfn, $sformatf("Unsupported mubi width (%0d) is used", mubi_width))
     endcase
   endfunction : create_cov
@@ -80,9 +99,11 @@ class dv_base_mubi_cov extends uvm_object;
       8:  m_mubi8_cov.sample(value);
       12: m_mubi12_cov.sample(value);
       16: m_mubi16_cov.sample(value);
+      20: m_mubi20_cov.sample(value);
+      24: m_mubi24_cov.sample(value);
+      28: m_mubi28_cov.sample(value);
+      32: m_mubi32_cov.sample(value);
       default: `uvm_fatal(`gfn, $sformatf("Unsupported mubi width (%0d) is used", mubi_width))
     endcase
   endfunction : sample
 endclass : dv_base_mubi_cov
-
-
diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg.core b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg.core
@@ -1,5 +1,5 @@
 CAPI=2:
-# Copyright lowRISC contributors.
+# Copyright lowRISC contributors (OpenTitan project).
 # Licensed under the Apache License, Version 2.0, see LICENSE for details.
 # SPDX-License-Identifier: Apache-2.0
 name: "lowrisc:dv:dv_base_reg"

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //
@@ -102,6 +102,15 @@ class dv_base_reg extends uvm_reg;
     end
   endfunction
 
+  // Return a mask of read-only bits in the register.
+  virtual function uvm_reg_data_t get_ro_mask();
+    dv_base_reg_field flds[$];
+    this.get_dv_base_reg_fields(flds);
+    foreach (flds[i]) begin
+      get_ro_mask |= flds[i].get_ro_mask();
+    end
+  endfunction
+
   // this function can only be called when this reg is intr_state reg
   // Example: ral.intr_state.get_intr_pins_exp_value(). And it returns value of
   // intr_state & intr_enable, which represents value of interrupt pins

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_block.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_block.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_field.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_field.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //
@@ -143,7 +143,7 @@ class dv_base_reg_field extends uvm_reg_field;
       uvm_reg_field intr_state_fld = get_intr_state_field();
       uvm_reg_data_t predict_val;
       if (intr_state_fld.get_access == "RO") begin // status interrupt
-        predict_val = field_val;
+        predict_val = field_val | intr_state_fld.get_reset();
       end else begin // regular W1C interrupt
         `DV_CHECK_STREQ(intr_state_fld.get_access, "W1C")
         predict_val = field_val | `gmv(intr_state_fld);
@@ -188,11 +188,19 @@ class dv_base_reg_field extends uvm_reg_field;
     return m_original_access;
   endfunction
 
+  // Return a mask of valid bits in the field.
   virtual function uvm_reg_data_t get_field_mask();
     get_field_mask = (1'b1 << this.get_n_bits()) - 1;
     get_field_mask = get_field_mask << this.get_lsb_pos();
   endfunction
 
+  // Return a mask of read-only bits in the field.
+  virtual function uvm_reg_data_t get_ro_mask();
+    bit is_ro = (this.get_access() == "RO");
+    get_ro_mask = (is_ro << this.get_n_bits()) - is_ro;
+    get_ro_mask = get_ro_mask << this.get_lsb_pos();
+  endfunction
+
   virtual function void set_original_access(string access);
     if (m_original_access == "") begin
       m_original_access = access;

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_map.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_map.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_pkg.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_reg_pkg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_shadowed_field_cov.sv b/vendor/lowrisc_ip/dv/sv/dv_base_reg/dv_base_shadowed_field_cov.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 //

diff --git a/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_agent.sv b/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_agent.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 
@@ -65,4 +65,3 @@ class dv_base_agent #(type CFG_T            = dv_base_agent_cfg,
   endfunction
 
 endclass
-
diff --git a/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_agent_cfg.sv b/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_agent_cfg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_agent_cov.sv b/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_agent_cov.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_driver.sv b/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_driver.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 
@@ -34,4 +34,3 @@ class dv_base_driver #(type ITEM_T     = uvm_sequence_item,
   endtask
 
 endclass
-
diff --git a/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_env.sv b/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_env.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0
 

diff --git a/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_env_cfg.sv b/vendor/lowrisc_ip/dv/sv/dv_lib/dv_base_env_cfg.sv
@@ -1,4 +1,4 @@
-// Copyright lowRISC contributors.
+// Copyright lowRISC contributors (OpenTitan project).
 // Licensed under the Apache License, Version 2.0, see LICENSE for details.
 // SPDX-License-Identifier: Apache-2.0