Re: [PATCH 4/4] drm/i915: Reserve space for FBC (fbcon)

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On Thu, Jun 19, 2014 at 12:06:13PM -0700, Ben Widawsky wrote:
> This is one part in a few fixes needed to make FBC work with limited
> stolen memory and large resolution displays. It is not the full
> solution, but one (easy) step.
> 
> The patch is straight-forward, it attempts to check there will be room
> for FBC before trying to "reclaim"

But it special cases one particular allocation. Why don't you just
reserve stolen upfront for FBC? Compute the maximum buffer size the
hardware could support and try to claim it during stolen init.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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