[PATCH] drm/i915: Fix sprite_scaling_enabled for multiple sprites

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On Fri, Feb 08, 2013 at 09:26:30PM +0000, Chris Wilson wrote:
> On Fri, Feb 08, 2013 at 11:13:35PM +0200, ville.syrjala at linux.intel.com wrote:
> > From: Ville Syrj?l? <ville.syrjala at linux.intel.com>
> > 
> > We have more than one sprite, so a boolean simply won't cut it.
> > Turn sprite_scaling_enabled into a bitmask and track the state
> > of sprite scaler for each sprite independently.

I'm not sure whether keeping that in dev_priv is right, probably should
move into a crtc flag. Otoh we have a few funny issues around watermark
changes anyway already, so better fix those all up before creating havoc
...

> > Also don't re-enable LP watermarks until the sprite registers
> > have actually been written, and thus sprite scaling has really
> > been disabled.
> 
> I would emphasize this, since this fix is worthy of Cc: stable@
>  
> > Signed-off-by: Ville Syrj?l? <ville.syrjala at linux.intel.com>
> Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch


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