From: Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
To: "Luis R. Rodriguez" <mcgrof-IBi9RG/b67k@public.gmane.org>
Cc: Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>,
mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
infinipath-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
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awalls-Xoej9cPu4Z+RGvkDC/A1pg@public.gmane.org,
Toshi Kani <toshi.kani-VXdhtT5mjnY@public.gmane.org>,
"H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
Ingo Molnar <mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Hal Rosenstock
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Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
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Mauro Carvalho Chehab
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Vlastimil Babka <vbabka-AlSwsSmVLrQ@public.gmane.org>,
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Dave Hansen <dave.hansen-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
Jean-Christophe Plagniol-Villard
<plagnioj-sclMFOaUSTBWk0Htik3J/w@public.gmane.org>,
Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
Ville
Subject: Re: ioremap_uc() followed by set_memory_wc() - burrying MTRR
Date: Tue, 21 Apr 2015 23:39:39 -0600 [thread overview]
Message-ID: <20150422053939.GA29609@obsidianresearch.com> (raw)
In-Reply-To: <20150421233907.GA5622-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
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
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next prev parent reply other threads:[~2015-04-22 5:39 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-15 20:42 ioremap_uc() followed by set_memory_wc() - burrying MTRR Andy Lutomirski
2015-04-15 22:15 ` Luis R. Rodriguez
2015-04-15 22:50 ` Andy Walls
[not found] ` <1429138212.1899.34.camel-xioobY1GIEhKttHedORAlB2eb7JE58TQ@public.gmane.org>
2015-04-15 23:52 ` Andy Lutomirski
2015-04-16 0:33 ` Andy Walls
[not found] ` <CALCETrV0B7rp08-VYjp5=1CWJp7=xTUTBYo3uGxX317RxAQT+w-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-04-15 20:56 ` H. Peter Anvin
2015-04-21 22:46 ` Luis R. Rodriguez
2015-04-21 22:57 ` Jason Gunthorpe
[not found] ` <20150421225732.GA17356-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-04-21 23:39 ` Luis R. Rodriguez
[not found] ` <20150421233907.GA5622-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2015-04-22 5:39 ` Jason Gunthorpe [this message]
2015-04-22 15:23 ` Luis R. Rodriguez
2015-04-22 15:54 ` Luis R. Rodriguez
2015-04-22 15:59 ` Luis R. Rodriguez
[not found] ` <20150422152328.GB5622-B4tOwbsTzaBolqkO4TVVkw@public.gmane.org>
2015-04-22 16:17 ` Jason Gunthorpe
2015-04-22 16:51 ` Luis R. Rodriguez
[not found] ` <20150422161755.GA19500-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2015-04-22 18:53 ` Doug Ledford
[not found] ` <1429728791.121496.10.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-04-22 19:05 ` Luis R. Rodriguez
2015-04-22 19:10 ` Doug Ledford
2015-04-22 19:14 ` Luis R. Rodriguez
2015-04-22 20:46 ` Jason Gunthorpe
2015-04-22 20:58 ` Doug Ledford
2015-04-22 16:53 ` Andy Lutomirski
2015-04-22 17:07 ` Luis R. Rodriguez
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