Re: [Intel-gfx] [PATCH 26/29] drm/i915: Invert watermarks used for i8xx, i9xx.

2010-08-30 Thread Eric Anholt
On Sun, 22 Aug 2010 12:05:45 +0100, Chris Wilson wrote: > The calculation seem backwards as they compute the number of entries > that would be drained during a memory fetch, and but return the opposite > value. > > This fixes a common flicker [or even completely scrambled display] on > high reso

[Intel-gfx] [PATCH 26/29] drm/i915: Invert watermarks used for i8xx, i9xx.

2010-08-22 Thread Chris Wilson
The calculation seem backwards as they compute the number of entries that would be drained during a memory fetch, and but return the opposite value. This fixes a common flicker [or even completely scrambled display] on high resolution outputs (e.g. 1920x1080 with 915GM). However, as we do not adju