[Bug 74195] [NVCE] Responsivity to input with vsync on is slower after update

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=74195

Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Responsivity to input with  |[NVCE] Responsivity to
                   |vsync on is slower after    |input with vsync on is
                   |update                      |slower after update

--- Comment #1 from Ilia Mirkin <imirkin-FrUbXkNCsVf2fBVCVOL8/A@public.gmane.org> ---
On the surface, this should have been a no-op change. You say you tried
different kernel versions... is that to say you did a git bisect? e.g. can you
confirm that 0fa9061ae8c10a9178d696cf48d94c3bf2848f9f has the issue but
0fa9061ae8c10a9178d696cf48d94c3bf2848f9f^ doesn't?

One small difference that I noticed is that if stat == ~0 in the old code it'll
return IRQ_NONE, whereas it will try to handle it in after the patch. I can't
imagine that matters here though.

Something to look at is what it is that the drm framework provided with the
irq's that's not done by nouveau now.

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