Subject: Re: 64 bit DMA tags for PCI
To: John Nemeth <>
From: Nathan J. Williams <>
List: tech-kern
Date: 05/13/2003 10:19:57 (John Nemeth) writes:

> On Oct 1,  6:51pm, Matt Thomas wrote:
> } 
> } I also want a #define that indicates the 64bit DMA is available so that
> } if it isn't present, the code can be compiled out.  No need for 64bit
> } DMA support on macppc or hpcmips for instance
>      The Apple Xserve has 64 bit PCI slots.

Sure, but no particular need or use for 64-bit-wide PCI *address*
cycles, which is what is relevant here.

        - Nathan