[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 #6 from Paul Menzel <paulepanter at users.sourceforge.net> ---
(In reply to Christian König from comment #5)
> What I've forgot: One thing that could possible help would be an HDP flush
> directly before we wait for the fence.
> 
> Just in case the value written for the fence is stuck in the HDP (unlikely,
> but worth a try).

Sorry, I unfortunately don’t know how to write such a patch. It’d be awesome,
if you provided a patch, that I could try.

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