Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[HW] 🐛 Stall vfdiv/vfsqrt not to violate insn ordering #193

Merged
merged 3 commits into from
Aug 26, 2024
Merged

Conversation

mp-17
Copy link
Collaborator

@mp-17 mp-17 commented Dec 13, 2022

Hotfix for vmfpu.

Possible optimization: don't stall if there is anyway a structural hazard on the divider (i.e., when both issue and processing insns will use the same unit inside the FPU).

Changelog

Fixed

  • Preventively stall vfdiv and vfsqrt if there is a latency problem within vmfpu

Checklist

  • Automated tests pass
  • Changelog updated
  • Code style guideline is observed

@mp-17 mp-17 changed the title [hardware] 🐛 Stall vfdiv/vfsqrt not to violate insn ordering [HW] 🐛 Stall vfdiv/vfsqrt not to violate insn ordering Dec 13, 2022
@mp-17 mp-17 marked this pull request as ready for review August 24, 2024 16:06
@mp-17 mp-17 merged commit 1c88667 into main Aug 26, 2024
13 checks passed
@mp-17 mp-17 deleted the hotfix/fpu-lat branch August 26, 2024 08:42
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant