[PATCH xserver 3/3] present: Only requeue if target MSC is not reached after an unflip

[Adam Jackson]

On Thu, 2016-02-25 at 09:49 +0000, Chris Wilson wrote:
> On Wed, Feb 24, 2016 at 04:52:59PM +0900, Michel Dänzer wrote:
> > From: Michel Dänzer <michel.daenzer at amd.com>
> > 
> > While present_pixmap decrements target_msc by 1 for present_queue_vblank,
> > it leaves the original vblank->target_msc intact. So incrementing the
> > latter for requeueing resulted in the requeued presentation being
> > executed too late.
> 
> My mistake. Yes, the local target_msc is decremented but after
> vblank->target_msc is assigned.
>  
> > Also, no need to requeue if the target MSC is already reached.
> > 
> > This further reduces stutter when a popup menu appears on top of a
> > flipping fullscreen window.
> > 
> > Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
> 
> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
> -Chris

Series merged:

remote: I: patch #74919 updated using rev 1a9f8c4623c4e6b6955cb6d5f44d29c244dfd32a.
remote: I: patch #74915 updated using rev e7a35b9e16aa12970908f5d55371bb1b862f8f24.
remote: I: patch #74910 updated using rev b4ac7b142fa3c536e9b283cfd34b94d82c03aac6.
remote: I: 3 patch(es) updated to state Accepted.
To ssh://git.freedesktop.org/git/xorg/xserver
   0461bca..b4ac7b1  master -> master

- ajax