Re: struct page to 36 (or 64) bit bus address?

[Johannes Erdfelt]

On Thu, Aug 09, 2001, David S. Miller <[e-mail]> wrote:
> 
> Alan Cox writes:
>  > > Obviously the more portable way across architectures is using the PCI
>  > > DMA API but when will the implementation be fixed so I can use it to
>  > > exploit the full potential of this device?
>  > 
>  > 2.5 I believe, ping the peacefrog and ask <[e-mail]>
> 
> That's the current plan.  There may be a 2.4.x backport, but no
> promises.  It all depends upon how straightforward the changes
> are.

It's not a big deal. It's just less efficient which isn't the end of the
world.

> Note, if you use the "bttv method" (ie. virt_to_bus) your driver will
> then fail to compile on several platforms.

So noted. I already have a PCI DMA API version, but I wanted to code up
a "i have an i386 and gigs of memory" version as well.

JE