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Groups > linux.kernel > #1691058
| From | Christoph Hellwig <hch@lst.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH 1/2] drivers: dma-coherent: Introduce interface for default DMA pool |
| Date | 2017-07-19 09:30 +0200 |
| Message-ID | <u4RAJ-5hK-11@gated-at.bofh.it> (permalink) |
| References | <u4a2K-2Ji-7@gated-at.bofh.it> <u4a2K-2Ji-19@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Mon, Jul 17, 2017 at 09:58:04AM +0100, Vladimir Murzin wrote: > Christoph noticed [1] that default DMA pool in current form overload > the DMA coherent infrastructure. In reply, Robin suggested to split > the per-device vs. global pool interfaces, so allocation/release from > default DMA pool is driven by dma ops implementation. > > This patch implements Robin's idea and provide interface to > allocate/release/mmap the default/global DMA pool. > > [1] https://lkml.org/lkml/2017/7/7/370 > [2] https://lkml.org/lkml/2017/7/7/431 > > Suggested-by: Robin Murphy <robin.murphy@arm.com> > Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> This looks good to me. I'd just rename the existin *_from_coherent routines to *_from_dev_coherent.
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Re: [RFC PATCH 1/2] drivers: dma-coherent: Introduce interface for default DMA pool Christoph Hellwig <hch@lst.de> - 2017-07-19 09:30 +0200
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