Now inside that page table you can point GPU virtual address
to use GPU memory or use system memory. Those system memory entry can
also be mark as ATS against a given PASID.
Thanks. This all makes sense.
But do you have examples of this in a kernel driver (if so can you point me too it) or is
this all done via user-space? Based on my grepping of the kernel code I see zero EP
drivers using in-kernel ATS functionality right now...