From: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
Cc: jroedel-l3A5Bk7waGM@public.gmane.org,
arnd-r2nGTMty4D4@public.gmane.org,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
laurent.pinchart-ryLnwIuWjnjg/C1BVhZhaw@public.gmane.org,
Varun.Sethi-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH 1/2] iommu: move pgsize_bitmap from struct iommu_ops to struct iommu_domain
Date: Wed, 11 Mar 2015 09:38:47 +0100 [thread overview]
Message-ID: <20150311083846.GB19391@ulmo.nvidia.com> (raw)
In-Reply-To: <1425641688-26438-2-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
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On Fri, Mar 06, 2015 at 11:34:47AM +0000, Will Deacon wrote:
> struct iommu_ops contains function pointers for IOMMU driver callbacks
> in order to implement the core IOMMU API. Amongst these pointers is
> an unsigned long pgsize_bitmap field, which is problematic because the
> set of supported page sizes is not necessarily the same across all
> instances of a given IOMMU type in the system. Furthermore, the set of
> supported page sizes may be restricted following domain initialisation
> when a particular page table format is chosen for the domain.
>
> This patch moves the field from iommu_ops into the iommu_domain and
> updates all users accordingly.
>
> Signed-off-by: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
> ---
[...]
> drivers/iommu/tegra-gart.c | 2 +-
> drivers/iommu/tegra-smmu.c | 3 +--
Acked-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
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WARNING: multiple messages have this Message-ID (diff)
From: thierry.reding@gmail.com (Thierry Reding)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] iommu: move pgsize_bitmap from struct iommu_ops to struct iommu_domain
Date: Wed, 11 Mar 2015 09:38:47 +0100 [thread overview]
Message-ID: <20150311083846.GB19391@ulmo.nvidia.com> (raw)
In-Reply-To: <1425641688-26438-2-git-send-email-will.deacon@arm.com>
On Fri, Mar 06, 2015 at 11:34:47AM +0000, Will Deacon wrote:
> struct iommu_ops contains function pointers for IOMMU driver callbacks
> in order to implement the core IOMMU API. Amongst these pointers is
> an unsigned long pgsize_bitmap field, which is problematic because the
> set of supported page sizes is not necessarily the same across all
> instances of a given IOMMU type in the system. Furthermore, the set of
> supported page sizes may be restricted following domain initialisation
> when a particular page table format is chosen for the domain.
>
> This patch moves the field from iommu_ops into the iommu_domain and
> updates all users accordingly.
>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> ---
[...]
> drivers/iommu/tegra-gart.c | 2 +-
> drivers/iommu/tegra-smmu.c | 3 +--
Acked-by: Thierry Reding <treding@nvidia.com>
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next prev parent reply other threads:[~2015-03-11 8:38 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-06 11:34 [PATCH 0/2] Kill off pgsize_bitmap field from struct iommu_ops Will Deacon
2015-03-06 11:34 ` Will Deacon
[not found] ` <1425641688-26438-1-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2015-03-06 11:34 ` [PATCH 1/2] iommu: move pgsize_bitmap from struct iommu_ops to struct iommu_domain Will Deacon
2015-03-06 11:34 ` Will Deacon
[not found] ` <1425641688-26438-2-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2015-03-06 11:56 ` Laurent Pinchart
2015-03-06 11:56 ` Laurent Pinchart
2015-03-06 11:59 ` Will Deacon
2015-03-06 11:59 ` Will Deacon
2015-03-06 11:57 ` Laurent Pinchart
2015-03-06 11:57 ` Laurent Pinchart
2015-03-06 12:34 ` Will Deacon
2015-03-06 12:34 ` Will Deacon
2015-03-06 12:24 ` Marek Szyprowski
2015-03-06 12:24 ` Marek Szyprowski
2015-03-07 16:17 ` Daniel Kurtz
2015-03-11 8:38 ` Thierry Reding [this message]
2015-03-11 8:38 ` Thierry Reding
2015-03-06 11:34 ` [PATCH 2/2] iommu: of: enforce const-ness of struct iommu_ops Will Deacon
2015-03-06 11:34 ` Will Deacon
[not found] ` <1425641688-26438-3-git-send-email-will.deacon-5wv7dgnIgG8@public.gmane.org>
2015-03-11 8:43 ` Thierry Reding
2015-03-11 8:43 ` Thierry Reding
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