Re: [PATCH] drm/i915: Fix the computation of required fb size for pipe

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On Thu, Mar 20, 2014 at 03:11:21PM +0000, Chris Wilson wrote:
> The computation of required framebuffer size in
> 
> commit d978ef14456a38034f6c0e94a794129501f89200
> Author: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
> Date:   Fri Mar 7 08:57:51 2014 -0800
> 
>     drm/i915: Wrap the preallocated BIOS framebuffer and preserve for KMS fbcon v12
> 
> is too optimistic, and would rely on the invariant fb being
> reconstructed to exactly fit each pipe (and probably ignore hardware
> limits). Instead, we want to compute the upper bound on what the display
> engine will access and ensure that is within the inherited framebuffer.
> 
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>

Ping. The code is just waiting to explode.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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