| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| // |
| // waiver file for keymgr |
| |
| `verilator_config |
| |
| // Waive some width mismatch warnings in keymgr*.sv that come from addressing an |
| // array by literal elements of an enum that has an extra entry. For example, |
| // keymgr_ops_e contains 4 actual operations plus an "OpDisable" entry, meaning |
| // that its elements are represented by $clog2(5) = 3 bits. However, we use its |
| // literal values to index into things like the error_o array, which just has an |
| // entry for each of the 4 real operations. Because $clog2(4) = 2, Verilator |
| // expects to address it with a 2-bit index and generates a warning. |
| lint_off -rule WIDTH -file "*/rtl/keymgr*.sv" -match "Bit extraction of var[*:0]*not * bits." |
