Re: [PATCH v2 0/2] sparc: IOMMU pools for better scalability

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From: Sowmini Varadhan <sowmini.varadhan@xxxxxxxxxx>
Date: Wed, 4 Mar 2015 14:10:17 -0500

> On (03/03/15 17:15), David Miller wrote:
>> Please don't put "ifdef notyet" kind of stuff into your changes,
>> that is not appropriate.  In any event, I want you to translate all
>> of the PCI DMA implementations, because it is the only way you can
>> show me that your abstractions are sufficient.
> 
> That means I have to fix all kinds of dinosaurs in the neighborhood,
> things like pci_fire, pci_schizo, pci_psycho, sun4u. Some of this
> hardware was EOL'ed a long time ago. And the last time I remember
> using a sun4u was back in 2008 (and even then, it was really not
> very useful for any sort of non-trivial SMP/perf development).
> 
> But whatever floats your boat. 

It's a conversion that has to be done anyways, and otherwise you'll
have no idea whether your abstractions are sufficient or not.
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