linux-kernel - Re: refactor the i915 GVT support and move to the modern mdev API v3

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Date:   Thu, 14 Apr 2022 10:41:29 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     "Wang, Zhi A" <zhi.a.wang@...el.com>
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Christoph Hellwig <hch@....de>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        "Vivi, Rodrigo" <rodrigo.vivi@...el.com>,
        Zhenyu Wang <zhenyuw@...ux.intel.com>,
        "intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
        "intel-gvt-dev@...ts.freedesktop.org" 
        <intel-gvt-dev@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Alex Williamson <alex.williamson@...hat.com>
Subject: Re: refactor the i915 GVT support and move to the modern mdev API v3

On Thu, Apr 14, 2022 at 01:39:11PM +0000, Wang, Zhi A wrote:
> On 4/14/22 1:34 PM, Jason Gunthorpe wrote:
> > On Thu, Apr 14, 2022 at 12:20:42PM +0000, Wang, Zhi A wrote:
> >> On 4/13/22 11:20 PM, Jason Gunthorpe wrote:
> >>> On Wed, Apr 13, 2022 at 11:13:06PM +0000, Wang, Zhi A wrote:
> >>>> Hi folks:
> >>>>
> >>>> Thanks so much for the efforts. I prepared a branch which contains all our patches.The aim of the branch is for the VFIO maintainers to pull the whole bunch easily after the drm-intel-next got merged through drm (as one of the MMIO patches depends on a patch in drm-intel-next).
> >>>>
> >>>> I dropped patch 4 and patch 5 as they have been covered by Jani's patches. Some conflicts was solved.
> >>>> QA is going to test it today. 
> >>>>
> >>>> You can find it here:
> >>>>
> >>>> git clone https://github.com/intel/gvt-linux -b for-christoph
> >>>
> >>> There are alot of extra commits on there - is it possible to base this
> >>> straight on rc1 not on some kind of existing DRM tree?
> >>>
> >>> Why did you choose drm/i915/fbc: Call intel_fbc_activate() directly
> >>> from frontbuffer flush  as a base?
> >>>
> >>> Jason
> >>>
> >>
> >> Hi Jason:
> >>
> This one belongs to i915, which has already been queued in drm-intel-next, but
> not yet reached to the top. When it is landed in -rc, I will rebase this branch
> on it, then we can drop this patch in this branch.

A commit called 'split out dmc registers' with no Fixes: will be sent
to a rc?

Jason