linux-kernel - Re: [PATCH v9 00/11] vgaarb: Rework default VGA device selection

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Date:   Wed, 9 Mar 2022 10:29:50 -0600
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>
Cc:     David Airlie <airlied@...ux.ie>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Xuefeng Li <lixuefeng@...ngson.cn>,
        Huacai Chen <chenhuacai@...ngson.cn>
Subject: Re: [PATCH v9 00/11] vgaarb: Rework default VGA device selection

On Fri, Feb 25, 2022 at 04:15:23PM -0600, Bjorn Helgaas wrote:
> On Thu, Feb 24, 2022 at 04:47:42PM -0600, Bjorn Helgaas wrote:
> > From: Bjorn Helgaas <bhelgaas@...gle.com>
> > 
> > Current default VGA device selection fails in some cases because part of it
> > is done in the vga_arb_device_init() subsys_initcall, and some arches
> > enumerate PCI devices in pcibios_init(), which runs *after* that.
> > 
> > The big change from the v8 posting is that this moves vgaarb.c from
> > drivers/gpu/vga to drivers/pci because it really has nothing to do with
> > GPUs or DRM.
> 
> I provisionally applied this to pci/vga and put it into -next just
> to get a little runtime on it.
> 
> But I'd prefer not to unilaterally yank this out of drivers/gpu
> without a consensus from the GPU folks that this is the right thing to
> do.
> 
> Any thoughts?  If it seems OK to you, I think patch 1/11 (the move
> itself) is all you would need to look at, although of course I would
> still be grateful for any review and feedback on the rest.
> 
> After it's in drivers/pci, all the blame for any issues would come my
> way.

Ping?  This has been in -next since the Feb 28 tree, and I plan to
ask Linus to include it during the v5.18 merge window (which will
probably open Mar 13) unless somebody objects.

Bjorn