Stefan Richter <[EMAIL PROTECTED]> writes:
> 
>   1.) The ieee1394 subsystem is known to work on x86_64 with more than 4
> GB RAM, 

It's actually ~3+GB where memory above the 4GB barrier starts appearing.
In some extreme cases even for 2+GB. 

> so I gather that architecture code already sets a proper DMA
> mask for all those 32bit PCI OHCI-1394 implementations out there.

If you don't set a DMA mask then the default is always 4GB.

-Andi
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