On Tue, 2015-10-27 at 18:54 -0700, Nishanth Aravamudan wrote:

In "bypass" mode, what TCE size is used? Is it guaranteed to be 4K?

None :-) The TCEs are completely bypassed. You get a N:M linear mapping
of all memory starting at 1<<59 PCI side.

Seems like this would be a different platform implentation I'd put in
for 'powernv', is that right?

My apologies for missing that, and thank you for the review!

Cheers,
Ben.