Re: ioremap_uc() followed by set_memory_wc() - burrying MTRR
From: Jason Gunthorpe
Date: Wed Apr 22 2015 - 01:40:42 EST
On Wed, Apr 22, 2015 at 01:39:07AM +0200, Luis R. Rodriguez wrote:
> > Mike, do you think the time is right to just remove the iPath driver?
>
> With PAT now being default the driver effectively won't work
> with write-combining on modern kernels. Even if systems are old
> they likely had PAT support, when upgrading kernels PAT will work
> but write-combing won't on ipath.
Sorry, do you mean the driver already doesn't get WC? Or do you mean
after some more pending patches are applied?
Jason
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/