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From: Ohad Ben-Cohen <ohad@wizery.com>
To: "Roedel, Joerg" <Joerg.Roedel@amd.com>
Cc: "iommu@lists.linux-foundation.org"
	<iommu@lists.linux-foundation.org>,
	Greg Kroah-Hartman <gregkh@suse.de>,
	Alex Williamson <alex.williamson@redhat.com>,
	David Woodhouse <dwmw2@infradead.org>,
	David Brown <davidb@codeaurora.org>,
	"joro@8bytes.org" <joro@8bytes.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 08/10] iommu/omap: Use bus_set_iommu instead of register_iommu
Date: Mon, 26 Sep 2011 15:29:04 +0300	[thread overview]
Message-ID: <CAK=WgbYvACc4U58WTxdndKtHgA0TxV-wFmO8bQLD65yuz_Hk0w@mail.gmail.com> (raw)
In-Reply-To: <20110926122213.GC2138@amd.com>

On Mon, Sep 26, 2011 at 3:22 PM, Roedel, Joerg <Joerg.Roedel@amd.com> wrote:
> That is interesting. What bus do these IOMMU users you talk about belong
> to?

E.g., virtio devices (which today originates from a platform device)
or even rpmsg users (which originates from the former virtio devices).

> Is it a seperate bus that originates from a platform device?

Yes.

> in that
> case the situation sounds a little bit like with USB on x86. The usb
> controlers are PCI devices and DMA handles are allocated using the
> pci_dev of the controler and not the usb_device.

Yeah, sounds very similar.

Thanks,
Ohad.

  reply	other threads:[~2011-09-26 12:29 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-23 15:45 [PATCH 0/10 v3] IOMMU: Make iommu_ops per-bus_type Joerg Roedel
2011-09-23 15:45 ` [PATCH 01/10] iommu/core: Define iommu_ops and register_iommu only with CONFIG_IOMMU_API Joerg Roedel
2011-09-23 15:45 ` [PATCH 02/10] Driver core: Add iommu_ops to bus_type Joerg Roedel
2011-09-29 20:05   ` Greg KH
2011-09-30  6:24     ` Joerg Roedel
2011-09-30 13:58       ` Greg KH
2011-09-23 15:45 ` [PATCH 03/10] iommu/core: Add bus_type parameter to iommu_domain_alloc Joerg Roedel
2011-09-23 15:45 ` [PATCH 04/10] iommu/core: Convert iommu_found to iommu_present Joerg Roedel
2011-09-23 15:45 ` [PATCH 05/10] iommu/core: Use bus->iommu_ops in the iommu-api Joerg Roedel
2011-09-23 15:45 ` [PATCH 06/10] iommu/amd: Use bus_set_iommu instead of register_iommu Joerg Roedel
2011-09-23 15:45 ` [PATCH 07/10] iommu/vt-d: " Joerg Roedel
2011-09-23 15:45 ` [PATCH 08/10] iommu/omap: " Joerg Roedel
2011-09-26  7:09   ` Ohad Ben-Cohen
2011-09-26 12:22     ` Roedel, Joerg
2011-09-26 12:29       ` Ohad Ben-Cohen [this message]
2011-09-27 11:00         ` Roedel, Joerg
2011-09-27 11:10           ` Ohad Ben-Cohen
2011-09-27 11:20             ` KyongHo Cho
2011-09-29 20:04   ` Greg KH
2011-10-02 17:24     ` Ohad Ben-Cohen
2011-09-23 15:45 ` [PATCH 09/10] iommu/msm: " Joerg Roedel
2011-09-23 17:44   ` David Brown
2011-09-23 15:45 ` [PATCH 10/10] iommu/core: Remove global iommu_ops and register_iommu Joerg Roedel
  -- strict thread matches above, loose matches on Subject: below --
2011-09-22 16:14 [PATCH 0/10 v2] IOMMU: Make iommu_ops per-bus_type Joerg Roedel
2011-09-22 16:15 ` [PATCH 08/10] iommu/omap: Use bus_set_iommu instead of register_iommu Joerg Roedel
2011-09-07 15:41 [PATCH 0/10] IOMMU: Make iommu_ops per-bus_type Joerg Roedel
2011-09-07 15:41 ` [PATCH 08/10] iommu/omap: Use bus_set_iommu instead of register_iommu Joerg Roedel

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