linux-kernel - Re: Resizeable PCI BAR support V8

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Message-ID: <20170914080650.GA872@bhelgaas-glaptop.roam.corp.google.com>
Date:   Thu, 14 Sep 2017 03:06:50 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Christian König <deathsimple@...afone.de>
Cc:     linux-pci@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org,
        amd-gfx@...ts.freedesktop.org
Subject: Re: Resizeable PCI BAR support V8

On Mon, Jul 10, 2017 at 04:59:48PM +0200, Christian König wrote:
> Hi everyone,
> 
> This is the eighth incarnation of this set of patches. It enables device
> drivers to resize and most likely also relocate the PCI BAR of devices 
> they manage to allow the CPU to access all of the device local memory at once.
> 
> This is very useful for GFX device drivers where the default PCI BAR is only
> about 256MB in size for compatibility reasons, but the device easily have
> multiple gigabyte of local memory.
> 
> Some changes since the last version:
> 1. Rebased on Linus current master tree, going to rebase on 4.13-rc1 as soon as that is out.
> 2. Some more documentation on how to use the new functionality in drivers.
> 3. Only re-enable decoding when everything looks good.
> 4. Rename the new amdgpu function to better match what it is doing.
> 
> Bjorn what's you'r feeling on getting this into 4.14?

This seems 99.9% done, but there were some kbuild issues that need to be
resolved.  Or did I miss the resolution of those?

Bjorn