[Intel-gfx] refactor the i915 GVT support and move to the modern mdev API v3

[Jani Nikula]

On Wed, 13 Apr 2022, Christoph Hellwig <hch at lst.de> wrote:
> On Wed, Apr 13, 2022 at 01:47:05PM +0000, Wang, Zhi A wrote:
>> > the GVT code in the i915 is a bit of a mess right now due to strange
>> > abstractions and lots of indirect calls.  This series refactors various
>> > bits to clean that up.  The main user visible change is that almost all
>> > of the GVT code moves out of the main i915 driver and into the kvmgt
>> > module.
>> 
>> Hi Christoph:
>> 
>> Do you want me to merge the GVT-g patches in this series? Or you want them to get merged from your side?
>
> The two option here are drm tree via gvt and i915 trees or the vfio
> tree, neither of which really is my tree.
>
> We already have a fair bit of vfio changes at the tail end of the series,
> and Jason has some more that should sit on top of it, and I have some
> more that I haven't sent yet.
>
> So if we could get the MMIO table and Makefile cleanups into a topic
> branch that we could pull into the vfio tree and merge it through that
> that would seem easiest to me, assuming that is ok with the i915, drm
> and vfio maintainers.

AFAICS the changes are mostly to gvt/, and at least I'm fine with the
minor changes to i915 (in this series and in my two patches) being
merged via whichever tree you all see fit.

Acked-by: Jani Nikula <jani.nikula at intel.com>

Joonas, Tvrtko, Rodrigo, chime in now if you have any issues with that.


BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center