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Date:   Thu, 6 May 2021 08:22:21 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     Catalin Marinas <catalin.marinas@arm.com>
Cc:     Will Deacon <will@kernel.org>, Vikram Sethi <vsethi@nvidia.com>,
        Alex Williamson <alex.williamson@redhat.com>,
        Mark Kettenis <mark.kettenis@xs4all.nl>,
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        Shanker Donthineni <sdonthineni@nvidia.com>,
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        Jason Sequeira <jsequeira@nvidia.com>
Subject: Re: [RFC 1/2] vfio/pci: keep the prefetchable attribute of a BAR
 region in VMA
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On Wed, May 05, 2021 at 07:02:31PM +0100, Catalin Marinas wrote:
> > Furthermore, ioremap() already gives you a Device memory type, and we're
> > tight on MAIR space.
> 
> We have MT_DEVICE_GRE currently reserved though no in-kernel user, we
> might as well remove it.

Please do.  The more we can cut down on different memory types, the
better.