From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/7] v4l: videobuf2: add IOMMU based DMA memory allocator
Date: Tue, 19 Apr 2011 10:21:35 +0100 [thread overview]
Message-ID: <20110419092135.GD22799@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <00ea01cbfe70$860ca900$9225fb00$%szyprowski@samsung.com>
On Tue, Apr 19, 2011 at 11:02:34AM +0200, Marek Szyprowski wrote:
> On Monday, April 18, 2011 4:16 PM Arnd Bergmann wrote:
> > My feeling is that this is not the right abstraction. Why can't you
> > just implement the regular dma-mapping.h interfaces for your IOMMU
> > so that the videobuf code can use the existing allocators?
>
> I'm not really sure which existing videobuf2 allocators might transparently
> support IOMMU interface yet
>
> Do you think that all iommu operations can be hidden behind dma_map_single
> and dma_unmap_single?
That is one of the intentions of the DMA API.
next prev parent reply other threads:[~2011-04-19 9:21 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-18 9:26 [RFC/PATCH v3 0/7] Samsung IOMMU videobuf2 allocator and s5p-fimc update Marek Szyprowski
2011-04-18 9:26 ` [PATCH 1/7] ARM: EXYNOS4: power domains: fixes and code cleanup Marek Szyprowski
2011-04-18 9:26 ` [PATCH 2/7] ARM: Samsung: update/rewrite Samsung SYSMMU (IOMMU) driver Marek Szyprowski
2011-04-18 14:12 ` Arnd Bergmann
2011-04-19 8:23 ` Marek Szyprowski
2011-04-19 12:49 ` Arnd Bergmann
2011-04-19 13:50 ` Roedel, Joerg
2011-04-19 14:28 ` Arnd Bergmann
2011-04-19 14:51 ` Roedel, Joerg
2011-04-19 14:03 ` Marek Szyprowski
2011-04-19 14:29 ` Arnd Bergmann
2011-04-20 14:55 ` Marek Szyprowski
2011-04-20 16:07 ` Arnd Bergmann
2011-04-21 11:32 ` Marek Szyprowski
2011-04-21 12:00 ` Arnd Bergmann
2011-04-21 14:03 ` Marek Szyprowski
2011-04-21 14:18 ` Arnd Bergmann
2011-04-22 7:33 ` Marek Szyprowski
2011-04-26 14:10 ` Arnd Bergmann
2011-04-26 14:23 ` Marek Szyprowski
2011-04-19 15:00 ` Roedel, Joerg
2011-04-19 15:37 ` Arnd Bergmann
2011-04-18 9:26 ` [PATCH 3/7] v4l: videobuf2: dma-sg: move some generic functions to memops Marek Szyprowski
2011-04-18 9:26 ` [PATCH 4/7] v4l: videobuf2: add IOMMU based DMA memory allocator Marek Szyprowski
2011-04-18 14:15 ` Arnd Bergmann
2011-04-19 9:02 ` Marek Szyprowski
2011-04-19 9:21 ` Russell King - ARM Linux [this message]
2011-04-19 12:00 ` Arnd Bergmann
2011-04-18 9:26 ` [PATCH 5/7] v4l: s5p-fimc: add pm_runtime support Marek Szyprowski
2011-04-18 9:26 ` [PATCH 6/7] v4l: s5p-fimc: Add support for vb2-dma-iommu allocator Marek Szyprowski
2011-04-18 9:26 ` [PATCH 7/7] ARM: EXYNOS4: enable FIMC on Universal_C210 Marek Szyprowski
2011-04-18 13:24 ` [RFC/PATCH v3 0/7] Samsung IOMMU videobuf2 allocator and s5p-fimc update Marek Szyprowski
-- strict thread matches above, loose matches on Subject: below --
2011-04-05 14:06 [RFC/PATCH v2 " Marek Szyprowski
2011-04-05 14:06 ` [PATCH 4/7] v4l: videobuf2: add IOMMU based DMA memory allocator Marek Szyprowski
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