Re: [Intel-gfx] [PATCH 07/70] drm/i915: Boost GPU frequency if we detect outstanding pageflips

2015-04-08 Thread Daniel Vetter
On Tue, Apr 07, 2015 at 04:20:31PM +0100, Chris Wilson wrote: If we hit a vblank and see that have a pageflip queue but not yet processed, ensure that the GPU is running at maximum in order to clear the backlog. Pageflips are only queued for the following vblank, if we miss it, there will be a

[Intel-gfx] [PATCH 07/70] drm/i915: Boost GPU frequency if we detect outstanding pageflips

2015-04-07 Thread Chris Wilson
If we hit a vblank and see that have a pageflip queue but not yet processed, ensure that the GPU is running at maximum in order to clear the backlog. Pageflips are only queued for the following vblank, if we miss it, there will be a visible stutter. Boosting the GPU frequency doesn't prevent us