On top of those I have 6 more patches in the pipeline to enable VRAM P2P
with DMA-buf.
So that is not the end of the patch set :)
Christian.
Am 17.04.19 um 15:52 schrieb Chunming Zhou:
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.
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