| From | Chunming Zhou <> | Subject | Re: dynamic DMA-buf sharing between devices | Date | Wed, 17 Apr 2019 13:52:06 +0000 |
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Thanks Christian, great job. I will verify it this week when I finish my current work on hand.
-David
在 2019/4/17 2:38, Christian König wrote: > Hi everybody, > > core idea in this patch set is that DMA-buf importers can now provide an optional invalidate callback. Using this callback and the reservation object exporters can now avoid pinning DMA-buf memory for a long time while sharing it between devices. > > I've already send out an older version roughly a year ago, but didn't had time to further look into cleaning this up. > > The last time a major problem was that we would had to fix up all drivers implementing DMA-buf at once. > > Now I avoid this by allowing mappings to be cached in the DMA-buf attachment and so driver can optionally move over to the new interface one by one. > > This is also a prerequisite to my patchset enabling sharing of device memory with DMA-buf. > > Please review and/or comment, > Christian. > > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
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