Messages in this thread | | | From | "Stephen Bates" <> | Subject | Re: [PATCH v4 04/14] PCI/P2PDMA: Clear ACS P2P flags for all devices behind switches | Date | Wed, 9 May 2018 16:30:32 +0000 |
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Hi Jerome
> 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...
Stephen
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