Re: [RFC 0/8] Copy Offload with Peer-to-Peer PCI Memory

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On 16/04/17 09:53 AM, Dan Williams wrote:
> ZONE_DEVICE allows you to redirect via get_dev_pagemap() to retrieve
> context about the physical address in question. I'm thinking you can
> hang bus address translation data off of that structure. This seems
> vaguely similar to what HMM is doing.

Thanks! I didn't realize you had the infrastructure to look up a device
from a pfn/page. That would really come in handy for us.

Logan




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