[lkml]   [2007]   [Jan]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: que: How can we Eliminate the DMA Zone from the kernel?
On Thu, 25 Jan 2007 10:35:10 -0500 Kyle McMartin wrote:

> On Thu, Jan 25, 2007 at 12:56:30PM +0000, Seetharam Dharmosoth wrote:
> > Hi,
> >
> > Want to remove DMA zone the from the Linux Kernel.
> > (Don't want to use DMA Zone, because i am not
> > using ISA bus, am using PCI bus. So, I don't need
> > this)
> >
> Just because you don't need ISA, doesn't mean you don't need
> ZONE_DMA. Various PCI cards have limitations on what addresses they
> can DMA to (24 bits on some old PCI sound cards iirc, and more recently
> a 30 bit DMA limitation on some Broadcom networking equipment.)

If your platform really doesn't need ZONE_DMA, then you should
look at lots of discussion and patches on the linux-mm
mailing list.

and emails or patches from Christoph Lameter, Andi Kleen,
and Marcelo Tosatti.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at
 \ /
  Last update: 2007-01-25 20:41    [from the cache]
©2003-2014 Jasper Spaans. hosted at Digital Ocean