[Intel-gfx] [PATCH] drm/i915: Handle untiled planes when computing their offsets

[Ville Syrjälä]

On Thu, Feb 21, 2013 at 08:04:31PM +0000, Chris Wilson wrote:
> We trim the fb to fit the CRTC by computing the offset of that CRTC to
> its nearest tile_row origin. This allows us to use framebuffers that are
> larger than the CRTC limits without additional work.
> 
> However, we failed to compute the offset for a linear framebuffer
> correctly as we treated its x-advance in whole tiles (instead of the
> linear increment expected), leaving the CRTC misaligned with its
> contents.
> 
> Fixes regression from commit c2c75131244507c93f812862fdbd4f3a37139401
> Author: Daniel Vetter <daniel.vetter at ffwll.ch>
> Date:   Thu Jul 5 12:17:30 2012 +0200
> 
>     drm/i915: adjust framebuffer base address on gen4+
> 
> v2: Adjust relative x-coordinate after linear alignment (vsyrjala)
> v3: Repaint with pokadots (vsyrjala)
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61152
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: stable at vger.kernel.org

Looking good.

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

-- 
Ville Syrjälä
Intel OTC