From: Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>
To: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Matthias Brugger
<matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] iommu: Allow io-pgtable to be used outside of drivers/iommu/
Date: Tue, 5 Feb 2019 17:12:29 +0000 [thread overview]
Message-ID: <a6002b86-e18a-dd97-6dad-ab69e994678d@arm.com> (raw)
In-Reply-To: <20190205165528.GA20157-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
On 05/02/2019 16:55, Christoph Hellwig wrote:
> On Tue, Feb 05, 2019 at 10:37:31AM -0600, Rob Herring wrote:
>> Move io-pgtable.h to include/linux/ and export alloc_io_pgtable_ops
>> and free_io_pgtable_ops. This enables drivers outside drivers/iommu/ to
>> use the ARM page table library. Specifically, some ARM Mali GPUs use the
>> ARM page table formats.
>
> Maybe rename it to arm-io-pgtable.h to make the usage a little more
> clear?
It's not Arm-specific, though - the whole point of io-pgtable is to be
an architecture-agnostic library of IOMMU pagetable code. It just
happens that the only formats implemented so far are the Arm ones that
already have more than one in-tree user each.
Robin.
next prev parent reply other threads:[~2019-02-05 17:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-05 16:37 [PATCH] iommu: Allow io-pgtable to be used outside of drivers/iommu/ Rob Herring
2019-02-05 16:55 ` Christoph Hellwig
[not found] ` <20190205165528.GA20157-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2019-02-05 17:12 ` Robin Murphy [this message]
2019-02-06 6:55 ` Christoph Hellwig
2019-02-05 17:20 ` Rob Herring
2019-02-11 10:27 ` Joerg Roedel
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