Messages in this thread | | | Subject | Re: [PATCH 2/7 v2] powerpc/dma-mapping: override dma_get_page_shift | From | Benjamin Herrenschmidt <> | Date | Wed, 28 Oct 2015 11:20:05 +0900 |
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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.
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