ARC: timeslice not reset on interrupt-induced swap

[zephyrbot]

Reported by Andrew Boie:

If an interrupt induces a context switch, we need to call into _update_time_slice_before_swap. Test this with GH-3668

(Imported from Jira ZEP-2234)

[galak]

@ruuddw, @vonhost do you know if this is still an issue?

[ruuddw]

Don't know. '_update_time_slice_before_swap' doesn't exist anymore after the timer refactoring. That did introduce other problems for ARC due to bugs in the 'legacy' support: #10747, #11129, #11170
@andyross : appreciate your guidance here on if this is still relevant?

[vonhust]

I think it's not issue now, at least no test cases report. #10747, #11129, #11179, I think, it's not related to this

[ruuddw]

Issue #3668 (GH-3668 mentioned above) states there is no testcase for this issue, so no testcase reports doesn't say much...

[galak]

Guys can you look at this and see if its still relevant?

[andyross]

Yeah, this got fixed as part of the timer rework. The relevant code is in the generic kernel, not the per-arch timer driver. It works the same everywhere.