[Intel-gfx] DG1 VRAM question

[Lucas De Marchi]

Cc Matt and Daniele

On Thu, Jun 25, 2020 at 9:38 PM Dave Airlie <airlied at gmail.com> wrote:
>
> I can't figure this out easily so I'd thought I'd just ask, but does
> DG1 have VRAM > PCIE aperture, I'm not sure I've see any mention of

We'd need to go via lmem since there's no mappable aperture. There are
a few patches in tree for that
(see e.g. 54b512cd7a6d ("drm/i915: do not map aperture if it is not
available.")) but more missing.

Lucas De Marchi

> mappable VRAM vs non-mappable in patches, is it planned to just thrash
> the aperture if userspace ever ties to map too much of it.
>
> Are pagetables stored in the visible RAM space?
>
> Dave.
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-- 
Lucas De Marchi