
Intel open-source developer Oleg Vasilev last week sent out the code for adding PRIME import support to the VKMS driver. This PRIME import support makes use of the DMA-BUF bits and can be used for validating user-space conformance for different PRIME configurations even without any actual graphics hardware.
More details can be found via this patch.
This will hopefully help developers in testing for multi-GPU PRIME functionality more easily. Due to the timing though this patch likely won't be found in the upcoming Linux 5.4 cycle but likely next year with Linux 5.5.
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