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{
  "commit": "b9b0d55ba96b549756bb207a33dae793a9495859",
  "tree": "51f5f9da62f5b35fc9aac3d69a5309035ab27ca8",
  "parents": [
    "131a9c544c539e32488bc30284b7ef3f2604b5d2"
  ],
  "author": {
    "name": "Alex Van Damme",
    "email": "atv@google.com",
    "time": "Tue Aug 19 13:16:46 2025 -0700"
  },
  "committer": {
    "name": "Alex Van Damme",
    "email": "atv@google.com",
    "time": "Wed Aug 20 11:04:51 2025 -0700"
  },
  "message": "feat(bus): Add SECDED integrity for TileLink-UL\n\nThis commit implements SECDED (Single Error Correction, Double Error\nDetection) for the TileLink-UL bus to ensure data integrity. The\nimplementation is compatible with OpenTitan\u0027s `prim_secded_inv` logic.\n\nKey changes include:\n- A parameterized `SecdedEncoder` Chisel module that supports 32-bit,\n  57-bit, and 128-bit data widths. The 128-bit implementation uses a\n  folded ECC scheme.\n- `RequestIntegrityGen/Check` and `ResponseIntegrityGen/Check` modules\n  to generate and verify integrity codes for the TileLink A and D\n  channels.\n- A Python-based golden model (`secded_golden.py`) for the SECDED\n  logic to ensure correctness.\n- A new `TileLinkULInterface` cocotb utility for simplified,\n  transaction-based testing of the TileLink bus.\n- Comprehensive cocotb tests that verify the `SecdedEncoder` against\n  the golden model and test the full `TlulIntegrity` functionality,\n  including fault injection.\n\nChange-Id: I20a059b78a47699f145ae397b0e037d8c56dab69\n",
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