lowRISC / lowRISC/opentitan

[prim] Reach coverage metrics for V3

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Component:DV Earlgrey-PROD Candidate IP:prim Milestone:V3 Priority:P2 TOP:earlgrey Triage Priority Type:Task
Dominant language
SystemVerilog
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Avg merge
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Merged PRs (30d)
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Description

For most smaller primitives in the `prim_*` library, we collect coverage as part of the comportable IP block-level DV. However, a few larger prims have their own DV environment, and hence they are excluded from coverage collection in the comportable IP block-level DV environments.

In order to reach V3 for the entire top-level, we should make sure that the coverage of these primitives reaches 100% (with waivers).

The affected primitives are:

- [ ] #14845
- [ ] #14846
- [ ] #14847
- [ ] #14848
- [ ] #14849

The coverage can be found in the nightly regression dashboard [here](https://reports.opentitan.org/hw/top_earlgrey/dv/summary/latest/report.html).

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the nightly regression dashboard and the five affected primitive issues: #14845 through #14849. Review each primitive's coverage status and its linked work, then consider the task complete when all listed primitives reach 100% coverage with documented waivers where needed.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot, testing-qa
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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