[Bug 768794] ion: DMA Buf allocator based on ion

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=768794

Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> changed:

           What    |Removed                     |Added
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 Attachment #359690|reviewed                    |needs-work
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--- Comment #45 from Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> ---
Review of attachment 359690:
 --> (https://bugzilla.gnome.org/review?bug=768794&attachment=359690)

This patch lacks a proper description. Performance whise it looks like a good
idea, but we don't implement DMA_BUF_IOCTL_SYNC, so I suspect we'll endup with
coherency issues. I already see bunch of cases where coherency is broken, it's
not clear to me who's doing it wrong, but I'd like this to be sorted out before
we take the risk of making it worst.

(of course, if you use CMA you may not see any issues)

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