From: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: "iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org"
<iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH 18/23] iommu/tegra: smmu: Workaround PCIe IOMMU'able
Date: Wed, 26 Jun 2013 13:15:37 +0200 [thread overview]
Message-ID: <20130626111537.GR27083@manwe> (raw)
In-Reply-To: <20130626.140906.1216615781918366349.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
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On Wed, Jun 26, 2013 at 01:09:06PM +0200, Hiroshi Doyu wrote:
> Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote @ Wed, 26 Jun 2013 13:06:27 +0200:
>
> > * PGP Signed by an unknown key
> >
> > On Wed, Jun 26, 2013 at 12:28:21PM +0300, Hiroshi Doyu wrote:
> > > Make PCIe work as it is. IOMMU support can be implemented later.
> > >
> > > Signed-off-by: Hiroshi Doyu <hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> > > ---
> > > drivers/iommu/tegra-smmu.c | 3 +++
> > > 1 file changed, 3 insertions(+)
> >
> > Can you provide more information about what the problem is here? Why is
> > PCIe not working when mapped through the IOMMU?
>
> I haven't had a code to register PCI device as IOMMU'able as
> ops->add_device() does for platform_devices. I'll add this comment.
Okay, that should be solved then when we merge the PCIe driver. I hope
that can happen soon.
Thierry
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From: thierry.reding@gmail.com (Thierry Reding)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 18/23] iommu/tegra: smmu: Workaround PCIe IOMMU'able
Date: Wed, 26 Jun 2013 13:15:37 +0200 [thread overview]
Message-ID: <20130626111537.GR27083@manwe> (raw)
In-Reply-To: <20130626.140906.1216615781918366349.hdoyu@nvidia.com>
On Wed, Jun 26, 2013 at 01:09:06PM +0200, Hiroshi Doyu wrote:
> Thierry Reding <thierry.reding@gmail.com> wrote @ Wed, 26 Jun 2013 13:06:27 +0200:
>
> > * PGP Signed by an unknown key
> >
> > On Wed, Jun 26, 2013 at 12:28:21PM +0300, Hiroshi Doyu wrote:
> > > Make PCIe work as it is. IOMMU support can be implemented later.
> > >
> > > Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
> > > ---
> > > drivers/iommu/tegra-smmu.c | 3 +++
> > > 1 file changed, 3 insertions(+)
> >
> > Can you provide more information about what the problem is here? Why is
> > PCIe not working when mapped through the IOMMU?
>
> I haven't had a code to register PCI device as IOMMU'able as
> ops->add_device() does for platform_devices. I'll add this comment.
Okay, that should be solved then when we merge the PCIe driver. I hope
that can happen soon.
Thierry
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next prev parent reply other threads:[~2013-06-26 11:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-26 9:28 [PATCH 18/23] iommu/tegra: smmu: Workaround PCIe IOMMU'able Hiroshi Doyu
2013-06-26 9:28 ` Hiroshi Doyu
[not found] ` <1372238906-9346-19-git-send-email-hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-06-26 11:06 ` Thierry Reding
2013-06-26 11:06 ` Thierry Reding
2013-06-26 11:09 ` Hiroshi Doyu
2013-06-26 11:09 ` Hiroshi Doyu
[not found] ` <20130626.140906.1216615781918366349.hdoyu-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-06-26 11:15 ` Thierry Reding [this message]
2013-06-26 11:15 ` Thierry Reding
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