linux-kernel - Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is not enough ram for it

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Date:	Thu, 24 Jan 2013 10:39:25 -0500
From:	Konrad Rzeszutek Wilk <konrad@...nel.org>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	Yinghai Lu <yinghai@...nel.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Shuah Khan <shuahkhan@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Borislav Petkov <bp@...en8.de>, Jan Kiszka <jan.kiszka@....de>,
	Jason Wessel <jason.wessel@...driver.com>,
	linux-kernel@...r.kernel.org, Joerg Roedel <joro@...tes.org>
Subject: Re: [PATCH v7u1 26/31] x86: Don't enable swiotlb if there is not
 enough ram for it

On Fri, Jan 18, 2013 at 10:55:35AM -0500, Konrad Rzeszutek Wilk wrote:
> On Mon, Jan 14, 2013 at 10:19:22PM -0800, Yinghai Lu wrote:
> > On Fri, Jan 11, 2013 at 9:49 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> > > On Fri, Jan 11, 2013 at 8:52 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> > >>>
> > >>> I need to check this patch out and then also test-run them on IA64, AMD-VI, Calgary-X
> > >>> GART and Intel VT-d to make a sanity test.
> > >>
> > >> that will be great, and please check attached two patches, or you want
> > >> to me update
> > >> for-x86-boot branch and you test that instead?
> > >>
> > >> but if you want to check memmap=4095M$1M, then will need to test on
> > >> newer branch.
> > >
> > >
> > > I updated the for-x86-boot branch.
> > >
> > > git://git.kernel.org/pub/scm/linux/kernel/git/yinghai/linux-yinghai.git
> > > for-x86-boot
> > >
> > 
> > Konrad,
> > 
> > Did you get chance to test that branch on your setups?
> 
> I tested it on the IA64 box - it worked without any hiccups. Going to
> try the Calgary-X and the rest of the machines over the weekend.

Worked without issues on AMD GART, AMD Vi, Intel VT-d, and on boxes
without any IOMMU.

I am having trouble getting my Calgary-X box to power on, so that
testing is taking a bit longer.

> > 
> > Thanks
> > 
> > Yinghai
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