From: Arnd Bergmann <arnd@arndb.de>
To: linaro-kernel@lists.linaro.org
Cc: Rob Clark <robdclark@gmail.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Tomasz Stanislawski <stanislawski.tomasz@googlemail.com>,
LKML <linux-kernel@vger.kernel.org>,
DRI mailing list <dri-devel@lists.freedesktop.org>,
"linaro-mm-sig@lists.linaro.org" <linaro-mm-sig@lists.linaro.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
Daniel Vetter <daniel@ffwll.ch>,
Robin Murphy <robin.murphy@arm.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-media@vger.kernel.org" <linux-media@vger.kernel.org>
Subject: Re: [Linaro-mm-sig] [RFCv3 2/2] dma-buf: add helpers for sharing attacher constraints with dma-parms
Date: Tue, 03 Feb 2015 22:44:53 +0100 [thread overview]
Message-ID: <19028710.jGRCggLuRk@wuerfel> (raw)
In-Reply-To: <CAF6AEGuf6XBe3YOjhtbBcSyqJrkZ7sNMfc83hZdnKsE3P=vSuw@mail.gmail.com>
On Tuesday 03 February 2015 12:35:34 Rob Clark wrote:
>
> I can't think of cases outside of GPU's.. if it were more common I'd
> be in favor of teaching dma api about multiple contexts, but right now
> I think that would just amount to forcing a lot of churn on everyone
> else for the benefit of GPU's.
We have a couple of users of the iommu API at the moment outside of
GPUs:
* drivers/media/platform/omap3isp/isp.c
* drivers/remoteproc/remoteproc_core.c
* drivers/infiniband/hw/usnic/usnic_uiom.c
* drivers/vfio/
I assume we will see a few more over time. The vfio case is the most
important one here, since that is what the iommu API was designed for.
Arnd
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next prev parent reply other threads:[~2015-02-03 21:45 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-27 8:25 [RFCv3 1/2] device: add dma_params->max_segment_count Sumit Semwal
2015-01-27 8:25 ` [RFCv3 2/2] dma-buf: add helpers for sharing attacher constraints with dma-parms Sumit Semwal
2015-01-29 14:16 ` Maarten Lankhorst
2015-01-29 14:39 ` Russell King - ARM Linux
2015-01-29 15:30 ` Sumit Semwal
2015-01-29 15:47 ` Russell King - ARM Linux
2015-01-29 16:55 ` Sumit Semwal
2015-01-29 18:52 ` Rob Clark
2015-01-29 19:26 ` Russell King - ARM Linux
2015-01-29 22:18 ` Rob Clark
2015-01-29 22:31 ` Russell King - ARM Linux
2015-01-29 23:19 ` Rob Clark
2015-02-02 16:54 ` Daniel Vetter
2015-02-02 20:30 ` Rob Clark
2015-02-02 21:46 ` Russell King - ARM Linux
2015-02-02 22:36 ` Rob Clark
2015-02-03 7:50 ` Daniel Vetter
2015-02-03 7:46 ` Daniel Vetter
2015-02-03 7:48 ` Daniel Vetter
2015-02-03 12:28 ` Russell King - ARM Linux
2015-02-03 13:00 ` Daniel Vetter
2015-02-03 13:28 ` Christian Gmeiner
2015-02-03 14:32 ` Russell King - ARM Linux
2015-02-03 14:25 ` Rob Clark
2015-02-03 14:04 ` Rob Clark
2015-02-03 14:17 ` Arnd Bergmann
2015-02-03 14:41 ` Russell King - ARM Linux
2015-02-03 14:52 ` Arnd Bergmann
2015-02-03 15:22 ` Russell King - ARM Linux
2015-02-03 15:31 ` [Linaro-mm-sig] " Arnd Bergmann
2015-02-03 15:54 ` Russell King - ARM Linux
2015-02-03 16:12 ` Arnd Bergmann
2015-02-03 16:22 ` Rob Clark
2015-02-03 16:36 ` Arnd Bergmann
2015-02-03 20:04 ` Daniel Vetter
2015-02-03 21:42 ` Arnd Bergmann
2015-02-03 22:07 ` Daniel Vetter
2015-02-04 0:14 ` Russell King - ARM Linux
2015-02-03 17:01 ` Russell King - ARM Linux
2015-02-03 16:58 ` Russell King - ARM Linux
2015-02-03 17:35 ` Rob Clark
2015-02-03 20:08 ` Daniel Vetter
2015-02-03 21:44 ` Arnd Bergmann [this message]
2015-02-03 15:25 ` Rob Clark
2015-02-03 15:19 ` Rob Clark
2015-02-03 14:37 ` Russell King - ARM Linux
2015-02-03 14:44 ` Rob Clark
2015-02-03 14:58 ` Russell King - ARM Linux
2015-02-02 5:53 ` Sumit Semwal
2015-02-11 8:28 ` Marek Szyprowski
2015-02-11 11:12 ` Russell King - ARM Linux
2015-02-11 11:23 ` Rob Clark
2015-02-11 12:56 ` Daniel Vetter
2015-02-11 13:30 ` Rob Clark
2015-02-11 12:20 ` Marek Szyprowski
2015-02-11 16:23 ` Russell King - ARM Linux
2015-05-05 14:41 ` Sumit Semwal
2015-06-03 6:39 ` [Linaro-mm-sig] " Hans Verkuil
2015-06-03 8:41 ` Russell King - ARM Linux
2015-06-03 9:37 ` Hans Verkuil
2015-06-04 5:24 ` Sumit Semwal
2015-01-28 14:09 ` [RFCv3 1/2] device: add dma_params->max_segment_count Marek Szyprowski
2015-06-03 6:13 ` [Linaro-mm-sig] " Hans Verkuil
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