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From: Kevin Hilman <khilman@ti.com>
To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: <linux-omap@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	Hiroshi DOYU <Hiroshi.DOYU@nokia.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Joerg Roedel <Joerg.Roedel@amd.com>,
	<iommu@lists.linux-foundation.org>, Arnd Bergmann <arnd@arndb.de>,
	<linux-kernel@vger.kernel.org>, Cousson Benoit <b-cousson@ti.com>,
	Tony Lindgren <tony@atomide.com>,
	Grant Likely <grant.likely@secretlab.ca>
Subject: Re: [RFC 2/5] ARM: OMAP: omap_device: add a method to set iommu private archdata
Date: Mon, 26 Sep 2011 15:53:22 -0700	[thread overview]
Message-ID: <87sjni9aql.fsf@ti.com> (raw)
In-Reply-To: <1316948337-7924-3-git-send-email-ohad@wizery.com> (Ohad Ben-Cohen's message of "Sun, 25 Sep 2011 13:58:54 +0300")

Hi Ohad,

Ohad Ben-Cohen <ohad@wizery.com> writes:

> Make it possible to set an iommu private archdata before a newly-created
> omap device is registered.
>
> Binding iommu client devices with their respective iommu data this way
> is needed so the generic IOMMU API can later be used without employing
> any omap-specific IOMMU plumbing.
>
> This patch just crudely adds an omap_device_build_ss_ext() method which
> accepts an iommu private data, but we may actually want to do something
> more generic here: e.g., split the omap_device_build API to alloc+add
> methods, so users can just manipulate the device as needed before it is
> registered (very much like we can do with plain devices).

Yes indeed.  

Benoit did just this in preparation for DT. 

       http://marc.info/?l=linux-omap&m=131672480111927&w=2

Will that meet your needs?

Kevin

WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman@ti.com>
To: Ohad Ben-Cohen <ohad@wizery.com>
Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Hiroshi DOYU <Hiroshi.DOYU@nokia.com>,
	Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Joerg Roedel <Joerg.Roedel@amd.com>,
	iommu@lists.linux-foundation.org, Arnd Bergmann <arnd@arndb.de>,
	linux-kernel@vger.kernel.org, Cousson Benoit <b-cousson@ti.com>,
	Tony Lindgren <tony@atomide.com>,
	Grant Likely <grant.likely@secretlab.ca>
Subject: Re: [RFC 2/5] ARM: OMAP: omap_device: add a method to set iommu private archdata
Date: Mon, 26 Sep 2011 15:53:22 -0700	[thread overview]
Message-ID: <87sjni9aql.fsf@ti.com> (raw)
In-Reply-To: <1316948337-7924-3-git-send-email-ohad@wizery.com> (Ohad Ben-Cohen's message of "Sun, 25 Sep 2011 13:58:54 +0300")

Hi Ohad,

Ohad Ben-Cohen <ohad@wizery.com> writes:

> Make it possible to set an iommu private archdata before a newly-created
> omap device is registered.
>
> Binding iommu client devices with their respective iommu data this way
> is needed so the generic IOMMU API can later be used without employing
> any omap-specific IOMMU plumbing.
>
> This patch just crudely adds an omap_device_build_ss_ext() method which
> accepts an iommu private data, but we may actually want to do something
> more generic here: e.g., split the omap_device_build API to alloc+add
> methods, so users can just manipulate the device as needed before it is
> registered (very much like we can do with plain devices).

Yes indeed.  

Benoit did just this in preparation for DT. 

       http://marc.info/?l=linux-omap&m=131672480111927&w=2

Will that meet your needs?

Kevin

WARNING: multiple messages have this Message-ID (diff)
From: khilman@ti.com (Kevin Hilman)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC 2/5] ARM: OMAP: omap_device: add a method to set iommu private archdata
Date: Mon, 26 Sep 2011 15:53:22 -0700	[thread overview]
Message-ID: <87sjni9aql.fsf@ti.com> (raw)
In-Reply-To: <1316948337-7924-3-git-send-email-ohad@wizery.com> (Ohad Ben-Cohen's message of "Sun, 25 Sep 2011 13:58:54 +0300")

Hi Ohad,

Ohad Ben-Cohen <ohad@wizery.com> writes:

> Make it possible to set an iommu private archdata before a newly-created
> omap device is registered.
>
> Binding iommu client devices with their respective iommu data this way
> is needed so the generic IOMMU API can later be used without employing
> any omap-specific IOMMU plumbing.
>
> This patch just crudely adds an omap_device_build_ss_ext() method which
> accepts an iommu private data, but we may actually want to do something
> more generic here: e.g., split the omap_device_build API to alloc+add
> methods, so users can just manipulate the device as needed before it is
> registered (very much like we can do with plain devices).

Yes indeed.  

Benoit did just this in preparation for DT. 

       http://marc.info/?l=linux-omap&m=131672480111927&w=2

Will that meet your needs?

Kevin

  reply	other threads:[~2011-09-26 22:53 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-25 10:58 [RFC 0/5] OMAP groundwork for IOMMU-based DMA API Ohad Ben-Cohen
2011-09-25 10:58 ` Ohad Ben-Cohen
2011-09-25 10:58 ` Ohad Ben-Cohen
2011-09-25 10:58 ` [RFC 1/5] ARM: dev_archdata: add private iommu extension Ohad Ben-Cohen
2011-09-25 10:58   ` Ohad Ben-Cohen
2011-09-27  1:30   ` Grant Likely
2011-09-27  1:30     ` Grant Likely
2011-10-02 18:48     ` Ohad Ben-Cohen
2011-10-02 18:48       ` Ohad Ben-Cohen
2011-10-02 18:48       ` Ohad Ben-Cohen
2011-10-05  9:26   ` Ohad Ben-Cohen
2011-10-05  9:26     ` Ohad Ben-Cohen
2011-10-13  9:15     ` Ohad Ben-Cohen
2011-10-13  9:15       ` Ohad Ben-Cohen
2011-10-13 10:42       ` Russell King - ARM Linux
2011-10-13 10:42         ` Russell King - ARM Linux
2011-10-13 11:55         ` Ohad Ben-Cohen
2011-10-13 11:55           ` Ohad Ben-Cohen
2011-10-13 11:55           ` Ohad Ben-Cohen
2011-09-25 10:58 ` [RFC 2/5] ARM: OMAP: omap_device: add a method to set iommu private archdata Ohad Ben-Cohen
2011-09-25 10:58   ` Ohad Ben-Cohen
2011-09-26 22:53   ` Kevin Hilman [this message]
2011-09-26 22:53     ` Kevin Hilman
2011-09-26 22:53     ` Kevin Hilman
2011-09-27 18:09     ` Ohad Ben-Cohen
2011-09-27 18:09       ` Ohad Ben-Cohen
2011-09-27 18:09       ` Ohad Ben-Cohen
2011-10-04 18:15       ` Kevin Hilman
2011-10-04 18:15         ` Kevin Hilman
2011-10-04 19:54         ` Ohad Ben-Cohen
2011-10-04 19:54           ` Ohad Ben-Cohen
2011-10-04 20:29           ` Kevin Hilman
2011-10-04 20:29             ` Kevin Hilman
2011-10-05  7:01             ` Ohad Ben-Cohen
2011-10-05  7:01               ` Ohad Ben-Cohen
2011-10-04 21:40           ` Cousson, Benoit
2011-10-04 21:40             ` Cousson, Benoit
2011-10-04 21:40             ` Cousson, Benoit
2011-09-25 10:58 ` [RFC 3/5] ARM: OMAP: iommu: declare a private iommu binding struct Ohad Ben-Cohen
2011-09-25 10:58   ` Ohad Ben-Cohen
2011-11-14 21:01   ` Tony Lindgren
2011-11-14 21:01     ` Tony Lindgren
2011-09-25 10:58 ` [RFC 4/5] ARM: OMAP3: bind omap3isp_device to its iommu device Ohad Ben-Cohen
2011-09-25 10:58   ` Ohad Ben-Cohen
2011-11-09  9:17   ` Laurent Pinchart
2011-11-09  9:17     ` Laurent Pinchart
2011-11-09  9:29     ` Ohad Ben-Cohen
2011-11-09  9:29       ` Ohad Ben-Cohen
2011-11-14 21:01     ` Tony Lindgren
2011-11-14 21:01       ` Tony Lindgren
2011-09-25 10:58 ` [RFC 5/5] iommu/omap: eliminate the public omap_find_iommu_device() method Ohad Ben-Cohen
2011-09-25 10:58   ` Ohad Ben-Cohen
2011-09-27 11:46   ` Laurent Pinchart
2011-09-27 11:46     ` Laurent Pinchart
2011-11-09  8:50     ` Ohad Ben-Cohen
2011-11-09  8:50       ` Ohad Ben-Cohen
2011-11-09  9:17       ` Laurent Pinchart
2011-11-09  9:17         ` Laurent Pinchart
2011-11-14 21:02         ` Tony Lindgren
2011-11-14 21:02           ` Tony Lindgren
2011-11-15 10:39 ` [RFC 0/5] OMAP groundwork for IOMMU-based DMA API Roedel, Joerg
2011-11-15 10:39   ` Roedel, Joerg
2011-11-15 10:39   ` Roedel, Joerg
2011-11-15 10:45   ` Ohad Ben-Cohen
2011-11-15 10:45     ` Ohad Ben-Cohen
2011-11-15 10:45     ` Ohad Ben-Cohen
2011-11-15 11:10     ` Roedel, Joerg
2011-11-15 11:10       ` Roedel, Joerg
2011-11-15 11:10       ` Roedel, Joerg
2011-11-15 11:18       ` Ohad Ben-Cohen
2011-11-15 11:18         ` Ohad Ben-Cohen
2011-11-15 11:18         ` Ohad Ben-Cohen
2011-12-05 14:21   ` Ohad Ben-Cohen
2011-12-05 14:21     ` Ohad Ben-Cohen
2011-12-05 14:21     ` Ohad Ben-Cohen
2011-12-05 15:18     ` Roedel, Joerg
2011-12-05 15:18       ` Roedel, Joerg
2011-12-05 15:18       ` Roedel, Joerg

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