[Intel-gfx] [PATCH] drm/i915: fix transition to I915_TILING_NONE

Keith Packard keithp at keithp.com
Fri Apr 17 01:46:20 CEST 2009

On Thu, 2009-04-16 at 23:29 +0100, Colin Guthrie wrote:
> 'Twas brillig, and Keith Packard at 16/04/09 23:17 did gyre and gimble:
> > Transitions to TILING_NONE skipped the call to unbind the object, which left
> > the fence register set and caused future CPU access through the GTT to
> > access the object in tiled mode.
> Could this solve this problem:
> http://thread.gmane.org/gmane.comp.freedesktop.xorg/38493

Dunno, but it doesn't seem likely; the bug here would have software
rendering to pixmaps broken when those pixmaps had been used in the past
as the front buffer.

keith.packard at intel.com
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