[Intel-gfx] [regression] drm/i915: Flush pending writes on i830/i845 after updating GTT

[Chris Wilson]

Ok, understood my mistake, that line was indeed incorrect.
Thanks,
-Chris

commit dc3bfebcf77d943b7e8495d30d0ee3d01b3042a5
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Dec 30 18:02:21 2010 +0000

    drm/i915: Don't skip ring flushes if only invalidating
    
    Commit 15056d2 tried to optimize away a flush if there were no
    outstanding writes on a ring (in order to prevent a too-early-flush
    during ring init). However, this has the unfortunate side-effect of
    eliminating the texture cache invalidation, and so causing rendering
    artefacts.
    
    Reported-by: Alexey Fisher <bug-track at fisher-privat.net>
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

-- 
Chris Wilson, Intel Open Source Technology Centre