[Bug 100761] `radeon_ib_ring_tests` takes 0.5 s on resume

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100761

--- Comment #3 from Paul Menzel <paulepanter at users.sourceforge.net> ---
(In reply to Christian König from comment #2)
> (In reply to Paul Menzel from comment #0)
> > Looking at the generated graph 540 ms is spent in `radeon_ib_ring_tests`,
> > which contributes most of the time.
> > 
> > It’d be awesome to improve these times.
> 
> And impossible as well. UVD hardware startup just takes about 400-500ms on
> the older boxes. No idea why.

Interesting. What part is responsible for this? AtomBIOS?

Does the UVD hardware need to start up before displaying something on the
screen, or could it be moved to the user space driver?

How long does it take on the new hardware?

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