External DMA to gpu

Dirk Eibach dirk.eibach at googlemail.com
Tue Sep 11 13:28:35 UTC 2018

I have a grabber device on The PCIe-bus that is able to transfer image
data to other PCIe devices.
I want to setup a wayland client, that reserves a buffer in GPU
memory. Then the grabber could DMA to the buffer address. After
finishing the transfer, the client could flip the buffer.
Is there already a concept for this in weston? What might be a good
starting point?


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