Messages in this thread | | | From | Andi Kleen <> | Subject | Re: PCI-DMA: Out of IOMMU space on x86-64 (Athlon64x2), with solution | Date | Fri, 3 Mar 2006 23:32:42 +0100 |
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On Friday 03 March 2006 23:23, Jeff Garzik wrote: > Andi Kleen wrote: > > On Friday 03 March 2006 22:27, Allen Martin wrote: > >>nForce4 has 64 bit (40 bit AMD64) DMA in the SATA controller. We gave > >>the docs to Jeff Garzik under NDA. He posted some non functional driver > >>code to linux-ide earlier this week that has the 64 bit registers and > >>structures although it doesn't make use of them. Someone could pick > >>this up if they wanted to work on it though. > > > > Thanks for the correction. Sounds nice - hopefully we'll get a driver > > soon. I guess it's in good hands with Jeff for now. > > I'll happen but not soon. Motivation is low at NV and here as well, > since newer NV is AHCI. The code in question, "NV ADMA", is essentially > legacy at this point
NForce4s are used widely in new shipping systems so I wouldn't exactly call them legacy.
> -- though I certainly acknowledge the large current > installed base. Just being honest about the current state of things...
How much work would it be to finish the prototype driver you have?
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