[lkml]   [2006]   [May]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 3/4] myri10ge - Driver core
Benjamin Herrenschmidt wrote:
> On Wed, 2006-05-24 at 10:04 +0200, Brice Goglin wrote:
>> I am not sure what you mean.
>> The only ppc64 with PCI-E that we have seen so far (a G5) couldn't do
>> write combining according to Apple.
> That is not 100% true.... I don't know what apple had in mind. It also
> depends in what slot you are.
> Do you have ways to measure the difference ?

No, we don't have any PPC with PCIe running Linux. The only G5 PCIe that
we have is running MacOSX.

> Try doing __ioremap(mgp->iomem_base, mgp->board_span, _PAGE_NO_CACHE);
> instead of using the normal ioremap for #ifdef powerpc and tell us if it
> makes a difference.

I'll try it as soon as we get our G5 PCIe to run Linux.


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: 2006-05-25 11:10    [W:0.050 / U:11.068 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site