[Intel-gfx] [PATCH 15/16] Revert "drm/i915: Allocate fbcon from stolen memory"

[Chris Wilson]

On Fri, Aug 14, 2015 at 06:34:20PM -0300, Paulo Zanoni wrote:
> This reverts commit 0ffb0ff283cca16f72caf29c44496d83b0c291fb.
> 
> Technology has evolved and now we have eDP panels with 3200x1800
> resolution. In the meantime, the BIOS guys didn't change the default
> 32mb for stolen memory. And we can't assume our users will be able to
> increase the default stolen memory size to more than 32mb - I'm not
> even sure all BIOSes allow that.
> 
> So just the fbcon buffer alone eats 22mb of my stolen memroy, and due
> to the BDW/SKL restriction of not using the last 8mb of stolen memory,
> all that's left for FBC is 2mb! Since fbcon is not the coolest feature
> ever, I think it's better to save our precious stolen resource to FBC
> and the other guys.
> 
> Besides, neither the original commit message nor the review comments
> showed any arguments in favor of actually allocating fbcon from
> stolen.

Pardon?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre