linux-kernel - Re: [PATCH v8 0/6] Patch series to support Thunderbolt without any BIOS support

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Message-ID: <20191004130803.GA41961@google.com>
Date:   Fri, 4 Oct 2019 08:08:03 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     "mika.westerberg@...ux.intel.com" <mika.westerberg@...ux.intel.com>
Cc:     Nicholas Johnson <nicholas.johnson-opensource@...look.com.au>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "corbet@....net" <corbet@....net>,
        "benh@...nel.crashing.org" <benh@...nel.crashing.org>,
        "logang@...tatee.com" <logang@...tatee.com>
Subject: Re: [PATCH v8 0/6] Patch series to support Thunderbolt without any
 BIOS support

On Thu, Oct 03, 2019 at 03:19:46PM +0300, mika.westerberg@...ux.intel.com wrote:
> On Fri, Jul 26, 2019 at 12:52:58PM +0000, Nicholas Johnson wrote:
> > Patch series rebased to 5.3-rc1.
> > 
> > If possible, please have a quick read over while I am away (2019-07-27
> > to mid 2019-08-04), so I can fix any mistakes or make simple changes to
> > get problems out of the way for a more thorough examination later.
> > 
> > Thanks!
> > 
> > Kind regards,
> > Nicholas
> > 
> > Nicholas Johnson (6):
> >   PCI: Consider alignment of hot-added bridges when distributing
> >     available resources
> >   PCI: In extend_bridge_window() change available to new_size
> >   PCI: Change extend_bridge_window() to set resource size directly
> >   PCI: Allow extend_bridge_window() to shrink resource if necessary
> >   PCI: Add hp_mmio_size and hp_mmio_pref_size parameters
> >   PCI: Fix bug resulting in double hpmemsize being assigned to MMIO
> >     window
> 
> Hi Bjorn,
> 
> What's the status of this series? I don't see them in v5.4-rc1.

They're still on my to-do list but are currently languishing because
they touch critical but complicated code that I don't understand and
nobody else has chimed in to help review them.  Testing reports would
also be helpful.

It's been a long time since I've looked at these, but I wonder if at
least the incremental step of adding the parameter to set the
MMIO_PREF size separately from the MMIO size would be more
approachable.

Bjorn