Re: [drm-next 01/14] drm/radeon/kms: add wait_for_vblank asic callback

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On Don, 2012-02-23 at 17:53 -0500, alexdeucher@xxxxxxxxx wrote: 
> From: Alex Deucher <alexander.deucher@xxxxxxx>
> 
> Required for future functionality.

These callbacks may take tens of milliseconds to complete, that's a lot
of spinning. :) Depending on what they'll be used for, it might be
better to wait for vertical blank interrupts, or use sleeps and
VBLANK_SAVE / VBLANK_OCCURRED bits.


-- 
Earthling Michel Dänzer           |                   http://www.amd.com
Libre software enthusiast         |          Debian, X and DRI developer
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