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.
thanks,
Brice
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
