From: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
To: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Pawel Moll <Pawel.Moll-5wv7dgnIgG8@public.gmane.org>,
Mark Rutland <Mark.Rutland-5wv7dgnIgG8@public.gmane.org>,
Ian Campbell
<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>,
Cho KyongHo <pullip.cho-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Grant Grundler <grundler-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
Dave P Martin <Dave.Martin-5wv7dgnIgG8@public.gmane.org>,
Marc Zyngier <Marc.Zyngier-5wv7dgnIgG8@public.gmane.org>,
Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
Olav Haugan <ohaugan-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Varun Sethi <varun.sethi-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
"devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
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<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
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Subject: Re: [PATCH v4] devicetree: Add generic IOMMU device tree bindings
Date: Wed, 9 Jul 2014 14:40:50 +0100 [thread overview]
Message-ID: <20140709134050.GN9485@arm.com> (raw)
In-Reply-To: <1404487757-18829-1-git-send-email-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
On Fri, Jul 04, 2014 at 04:29:17PM +0100, Thierry Reding wrote:
> From: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
>
> This commit introduces a generic device tree binding for IOMMU devices.
> Only a very minimal subset is described here, but it is enough to cover
> the requirements of both the Exynos System MMU and Tegra SMMU as
> discussed here:
>
> https://lkml.org/lkml/2014/4/27/346
>
> Signed-off-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Acked-by: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
I would like to move the ARM SMMU driver over to this for 3.18, if possible.
One use-case there is the ability to describe groups of masters behind a
multi-master IOMMU but which must be part of the same domain (i.e. an
iommu_group). This is useful for presenting devices to a guest with a
virtual SMMU, where the physical devices share a stage-2 context.
With your binding, does this simply mean determining the set of master IDs
in the group, then describing the complete set for each master?
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4] devicetree: Add generic IOMMU device tree bindings
Date: Wed, 9 Jul 2014 14:40:50 +0100 [thread overview]
Message-ID: <20140709134050.GN9485@arm.com> (raw)
In-Reply-To: <1404487757-18829-1-git-send-email-thierry.reding@gmail.com>
On Fri, Jul 04, 2014 at 04:29:17PM +0100, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> This commit introduces a generic device tree binding for IOMMU devices.
> Only a very minimal subset is described here, but it is enough to cover
> the requirements of both the Exynos System MMU and Tegra SMMU as
> discussed here:
>
> https://lkml.org/lkml/2014/4/27/346
>
> Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Will Deacon <will.deacon@arm.com>
I would like to move the ARM SMMU driver over to this for 3.18, if possible.
One use-case there is the ability to describe groups of masters behind a
multi-master IOMMU but which must be part of the same domain (i.e. an
iommu_group). This is useful for presenting devices to a guest with a
virtual SMMU, where the physical devices share a stage-2 context.
With your binding, does this simply mean determining the set of master IDs
in the group, then describing the complete set for each master?
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <Pawel.Moll@arm.com>,
Mark Rutland <Mark.Rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Stephen Warren <swarren@wwwdotorg.org>,
Arnd Bergmann <arnd@arndb.de>, Joerg Roedel <joro@8bytes.org>,
Cho KyongHo <pullip.cho@samsung.com>,
Grant Grundler <grundler@chromium.org>,
Dave P Martin <Dave.Martin@arm.com>,
Marc Zyngier <Marc.Zyngier@arm.com>,
Hiroshi Doyu <hdoyu@nvidia.com>,
Olav Haugan <ohaugan@codeaurora.org>,
Varun Sethi <varun.sethi@freescale.com>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4] devicetree: Add generic IOMMU device tree bindings
Date: Wed, 9 Jul 2014 14:40:50 +0100 [thread overview]
Message-ID: <20140709134050.GN9485@arm.com> (raw)
In-Reply-To: <1404487757-18829-1-git-send-email-thierry.reding@gmail.com>
On Fri, Jul 04, 2014 at 04:29:17PM +0100, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
>
> This commit introduces a generic device tree binding for IOMMU devices.
> Only a very minimal subset is described here, but it is enough to cover
> the requirements of both the Exynos System MMU and Tegra SMMU as
> discussed here:
>
> https://lkml.org/lkml/2014/4/27/346
>
> Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Will Deacon <will.deacon@arm.com>
I would like to move the ARM SMMU driver over to this for 3.18, if possible.
One use-case there is the ability to describe groups of masters behind a
multi-master IOMMU but which must be part of the same domain (i.e. an
iommu_group). This is useful for presenting devices to a guest with a
virtual SMMU, where the physical devices share a stage-2 context.
With your binding, does this simply mean determining the set of master IDs
in the group, then describing the complete set for each master?
Will
next prev parent reply other threads:[~2014-07-09 13:40 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-04 15:29 [PATCH v4] devicetree: Add generic IOMMU device tree bindings Thierry Reding
2014-07-04 15:29 ` Thierry Reding
2014-07-04 15:29 ` Thierry Reding
[not found] ` <1404487757-18829-1-git-send-email-thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2014-07-09 13:40 ` Will Deacon [this message]
2014-07-09 13:40 ` Will Deacon
2014-07-09 13:40 ` Will Deacon
[not found] ` <20140709134050.GN9485-5wv7dgnIgG8@public.gmane.org>
2014-07-09 14:21 ` Thierry Reding
2014-07-09 14:21 ` Thierry Reding
2014-07-09 14:21 ` Thierry Reding
2014-07-09 18:10 ` Will Deacon
2014-07-09 18:10 ` Will Deacon
2014-07-09 18:10 ` Will Deacon
[not found] ` <20140709181048.GX9485-5wv7dgnIgG8@public.gmane.org>
2014-07-10 9:49 ` Thierry Reding
2014-07-10 9:49 ` Thierry Reding
2014-07-10 9:49 ` Thierry Reding
2014-07-10 10:23 ` Will Deacon
2014-07-10 10:23 ` Will Deacon
2014-07-10 10:23 ` Will Deacon
[not found] ` <20140710102334.GG2449-5wv7dgnIgG8@public.gmane.org>
2014-07-10 10:57 ` Thierry Reding
2014-07-10 10:57 ` Thierry Reding
2014-07-10 10:57 ` Thierry Reding
2014-07-10 12:38 ` Will Deacon
2014-07-10 12:38 ` Will Deacon
2014-07-10 12:38 ` Will Deacon
2014-07-11 20:55 ` Rob Clark
2014-07-11 20:55 ` Rob Clark
2014-07-11 20:55 ` Rob Clark
[not found] ` <CAF6AEGv2P_Uq8CHgm1YdaUeMSNdH62ZwjLnT83Fr5GnxEAhTMw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-12 9:39 ` Will Deacon
2014-07-12 9:39 ` Will Deacon
2014-07-12 9:39 ` Will Deacon
[not found] ` <20140712093917.GD18601-5wv7dgnIgG8@public.gmane.org>
2014-07-12 11:26 ` Rob Clark
2014-07-12 11:26 ` Rob Clark
2014-07-12 11:26 ` Rob Clark
[not found] ` <CAF6AEGutHp+3f3iPA+jjaRkqq=5T_vytZ_ESoSqsQ4RHZ8F8yQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-12 12:22 ` Arnd Bergmann
2014-07-12 12:22 ` Arnd Bergmann
2014-07-12 12:22 ` Arnd Bergmann
[not found] ` <201407121422.02078.arnd-r2nGTMty4D4@public.gmane.org>
2014-07-12 12:57 ` Rob Clark
2014-07-12 12:57 ` Rob Clark
2014-07-12 12:57 ` Rob Clark
[not found] ` <CAF6AEGs7=3UByP2DLm-uwU03wr7M14x2t-0hLX-VPJ6_eZbU3g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-13 9:43 ` Will Deacon
2014-07-13 9:43 ` Will Deacon
2014-07-13 9:43 ` Will Deacon
[not found] ` <20140713094341.GB23235-5wv7dgnIgG8@public.gmane.org>
2014-07-13 11:43 ` Rob Clark
2014-07-13 11:43 ` Rob Clark
2014-07-13 11:43 ` Rob Clark
2014-07-16 1:25 ` Olav Haugan
2014-07-16 1:25 ` Olav Haugan
2014-07-16 1:25 ` Olav Haugan
[not found] ` <53C5D480.3030409-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2014-07-16 10:10 ` Will Deacon
2014-07-16 10:10 ` Will Deacon
2014-07-16 10:10 ` Will Deacon
2014-07-16 20:24 ` Rob Clark
2014-07-16 20:24 ` Rob Clark
2014-07-16 20:24 ` Rob Clark
2014-07-14 6:44 ` Thierry Reding
2014-07-14 6:44 ` Thierry Reding
2014-07-14 6:44 ` Thierry Reding
2014-07-14 10:08 ` Will Deacon
2014-07-14 10:08 ` Will Deacon
2014-07-14 10:08 ` Will Deacon
2014-07-14 6:24 ` Thierry Reding
2014-07-14 6:24 ` Thierry Reding
2014-07-14 6:24 ` Thierry Reding
2014-07-14 10:13 ` Rob Clark
2014-07-14 10:13 ` Rob Clark
2014-07-14 10:13 ` Rob Clark
2014-07-14 6:15 ` Thierry Reding
2014-07-14 6:15 ` Thierry Reding
2014-07-14 6:15 ` Thierry Reding
2014-07-30 11:04 ` Will Deacon
2014-07-30 11:04 ` Will Deacon
2014-07-30 11:04 ` Will Deacon
[not found] ` <20140730110425.GI12239-5wv7dgnIgG8@public.gmane.org>
2014-07-30 13:23 ` Thierry Reding
2014-07-30 13:23 ` Thierry Reding
2014-07-30 13:23 ` Thierry Reding
2014-07-30 13:33 ` Joerg Roedel
2014-07-30 13:33 ` Joerg Roedel
2014-07-30 13:33 ` Joerg Roedel
[not found] ` <20140730133309.GF9809-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-07-30 17:37 ` Olof Johansson
2014-07-30 17:37 ` Olof Johansson
2014-07-30 17:37 ` Olof Johansson
2014-07-30 14:30 ` Will Deacon
2014-07-30 14:30 ` Will Deacon
2014-07-30 14:30 ` Will Deacon
[not found] ` <20140730143037.GD8989-5wv7dgnIgG8@public.gmane.org>
2014-07-30 18:08 ` Rob Herring
2014-07-30 18:08 ` Rob Herring
2014-07-30 18:08 ` Rob Herring
2014-07-30 20:11 ` Arnd Bergmann
2014-07-30 20:11 ` Arnd Bergmann
2014-07-30 20:11 ` Arnd Bergmann
2014-07-30 15:26 ` Mark Rutland
2014-07-30 15:26 ` Mark Rutland
2014-07-30 15:26 ` Mark Rutland
2014-07-30 17:35 ` Olof Johansson
2014-07-30 17:35 ` Olof Johansson
2014-07-30 17:35 ` Olof Johansson
[not found] ` <CAOesGMi3zM1-cqmeGddJ69RNXx0ktFm_zXO_yq7N0EeA3HNrUQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-07-30 18:18 ` Mark Rutland
2014-07-30 18:18 ` Mark Rutland
2014-07-30 18:18 ` Mark Rutland
2014-07-31 10:09 ` Thierry Reding
2014-07-31 10:09 ` Thierry Reding
2014-07-31 10:09 ` Thierry Reding
2014-07-31 10:50 ` Mark Rutland
2014-07-31 10:50 ` Mark Rutland
2014-07-31 10:50 ` Mark Rutland
2014-07-31 11:14 ` Thierry Reding
2014-07-31 11:14 ` Thierry Reding
2014-07-31 11:14 ` Thierry Reding
2014-07-31 9:51 ` Thierry Reding
2014-07-31 9:51 ` Thierry Reding
2014-07-31 9:51 ` Thierry Reding
2014-07-31 8:39 ` Thierry Reding
2014-07-31 8:39 ` Thierry Reding
2014-07-31 8:39 ` Thierry Reding
2014-07-31 9:22 ` Mark Rutland
2014-07-31 9:22 ` Mark Rutland
2014-07-31 9:22 ` Mark Rutland
2014-07-31 10:18 ` Thierry Reding
2014-07-31 10:18 ` Thierry Reding
2014-07-31 10:18 ` Thierry Reding
2014-07-31 10:23 ` Joerg Roedel
2014-07-31 10:23 ` Joerg Roedel
2014-07-31 10:23 ` Joerg Roedel
[not found] ` <20140731102351.GJ9809-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2014-07-31 10:46 ` Thierry Reding
2014-07-31 10:46 ` Thierry Reding
2014-07-31 10:46 ` Thierry Reding
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