lkml.org 
[lkml]   [2007]   [Aug]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2.6.22.y] ieee1394: revert "sbp2: enforce 32bit DMA mapping"
Benjamin Herrenschmidt wrote:
>>> If setting 32-bit DMA mask fails on ppc64, that sounds like a problem
>>> with the DMA implementation on that architecture. There are enough cards
>>> out there that only support 32-bit DMA that this really needs to work..
>> Yes, could the PPC folks please have a look at it? Thanks.
>
> Smells like we may have a bug there. No worries though, all current PPC
> machines have an iommu that will not give out addresses above 32 bits
> anyway, but I'll double check what's up.
>
> Do you see something in dmesg when that happens ?

There was nothing in Olaf's report, except for trouble in sbp2 _after_
the failure. http://lkml.org/lkml/2007/8/1/344 (I don't have a PMac.)
--
Stefan Richter
-=====-=-=== =--- --=-=
http://arcgraph.de/sr/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-08-05 09:57    [W:0.158 / U:0.324 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site