On Sunday 11 February 2007 22:35, Benjamin Herrenschmidt wrote:
> I'd like to have that on ppc as well, so I'd rather keep it in drivers/
This will need some abstraction at least -- there are some early mapping hacks
that are x86 specific right now.
> I agree that it doesn't need to be a module. If you can load modules,
> then you can load the full ohci driver. Thus, if it's an early thingy
> initialized by arch, it can export a special "takeover" hook that the
> proper ohci module can then call to override it (important if we start
> having an irq handler).
>
> Andi, also, how do you deal with iommu ? Not at all ? :-)
Yes -- it's really early debugging hack mostly. It's reasonable to
let the iommu be disabled (or later a special bypass can be added for this)
-Andi
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