From: David Woodhouse <dwmw2@infradead.org>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: luming.yu@gmail.com, fenghua.yu@intel.com, tony.luck@intel.com,
linux-kernel@vger.kernel.org, akpm@linux-foundation.org
Subject: Re: [RFC patch] init default dma_ops to prepare intel_iommu_init failure
Date: Thu, 13 Aug 2009 09:26:12 +0100 [thread overview]
Message-ID: <1250151972.29180.193.camel@macbook.infradead.org> (raw)
In-Reply-To: <20090813121727W.fujita.tomonori@lab.ntt.co.jp>
On Thu, 2009-08-13 at 12:18 +0900, FUJITA Tomonori wrote:
> > Duh, yeah, intel_iommu_init() fails, it doesn't work.
> >
> > X86 falls back into nommu_dam_ops but IA64 has nothing.
> >
> > pci_swiotlb_init() can't set swiotlb to 1 or overwrite dma_ops? If it
> > sets swiotlb to 1, intel_iommu_init() fails.
> >
> > A quick fix could be something like this:
>
> Oops, here's a good one.
Closer, but don't we still want to free the swiotlb buffers if the iommu
init _does_ actually work?
And we want the same on x86 too -- we want swiotlb, not nommu.
--
David Woodhouse Open Source Technology Centre
David.Woodhouse@intel.com Intel Corporation
next prev parent reply other threads:[~2009-08-13 8:26 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-12 9:20 Luming Yu
2009-08-12 9:36 ` David Woodhouse
2009-08-12 18:17 ` Fenghua Yu
2009-08-12 18:20 ` David Woodhouse
2009-08-13 4:49 ` FUJITA Tomonori
2009-08-13 5:48 ` Luming Yu
2009-08-13 6:30 ` FUJITA Tomonori
2009-08-13 6:52 ` FUJITA Tomonori
2009-08-13 7:03 ` Luming Yu
2009-08-13 7:14 ` FUJITA Tomonori
2009-08-13 7:37 ` Luming Yu
2009-08-13 8:03 ` FUJITA Tomonori
2009-08-13 8:11 ` Luming Yu
2009-08-13 8:49 ` David Woodhouse
2009-08-13 9:00 ` FUJITA Tomonori
2009-08-13 9:00 ` Luming Yu
2009-08-13 17:08 ` David Woodhouse
2009-08-13 17:30 ` Yu, Fenghua
2009-08-14 5:44 ` Luming Yu
2009-08-13 2:11 ` FUJITA Tomonori
2009-08-13 2:24 ` Luming Yu
2009-08-13 3:15 ` FUJITA Tomonori
2009-08-13 3:18 ` FUJITA Tomonori
2009-08-13 8:26 ` David Woodhouse [this message]
2009-08-13 8:35 ` FUJITA Tomonori
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