[Intel-gfx] [PATCH 03/18] drm/i915: Fix location of stolen memory register for SandyBridge+

[Ben Widawsky]

On Sun, 28 Oct 2012 09:48:35 +0000
Chris Wilson <chris at chris-wilson.co.uk> wrote:

> On Fri, 26 Oct 2012 14:58:45 -0700, Ben Widawsky <ben at bwidawsk.net>
> wrote:
> > On Fri, 19 Oct 2012 18:03:09 +0100
> > Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > 
> > > A few of the earlier registers where enlarged and so the Base
> > > Data of Stolen Memory Register (BDSM) was pushed to 0xb0.
> > > 
> > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > > Reviewed-by: Jesse Barnes <jbarnes at virtuousgeek.org>
> > 
> > This patch seems irrelevant to me. I have a i915_stolen_to_phys
> > which already looks correct (git blame shows you last updated it in
> > April).
> > 
> > Can you help unconfuse me?
> 
> As the patch suggests the current registers being used by
> stolen-to-phys are incorrect for SNB+.
> -Chris
> 

Well no thanks to you, I found my confusion. Since I skipped patch 2 as
I don't care about gen2, this patch made no sense to me. It looks like
I need to go back and review patch 2 since among fixing detection for
gen2 you did a few other things such as changing the name
from i915_stolen_to_physical to i915_stolen_to_phys.