From: Luming Yu <luming.yu@gmail.com>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: dwmw2@infradead.org, 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 10:24:20 +0800 [thread overview]
Message-ID: <3877989d0908121924t1589941fmcd45d3669b78bba4@mail.gmail.com> (raw)
In-Reply-To: <20090813110948V.fujita.tomonori@lab.ntt.co.jp>
On Thu, Aug 13, 2009 at 10:11 AM, FUJITA
Tomonori<fujita.tomonori@lab.ntt.co.jp> wrote:
> On Wed, 12 Aug 2009 17:20:11 +0800
> Luming Yu <luming.yu@gmail.com> wrote:
>
>> Hi there,
>>
>> On ia64 platform with dmar table and new upstream
>> kernel(config_dmar_default_on enabled),
>> if intel_iommu_init ends up without dma_ops initialized or other iommu
>> failures.
>> We got nothing to fall back. The following patch fixes it.
>
> Hmm, I think that the current code should work.
Without the patch, I encounters boot failure with the following .config
162-CONFIG_IA64_GENERIC=y
163-# CONFIG_IA64_DIG is not set
164:# CONFIG_IA64_DIG_VTD is not set
> Note that IA64_DIG_VTD doesn't enable SWIOTLB so there is fall
> back. That's kinda the IA64 policy about non IA64_GENERIC kernel.
>
how comes?
next prev parent reply other threads:[~2009-08-13 2:24 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 [this message]
2009-08-13 3:15 ` FUJITA Tomonori
2009-08-13 3:18 ` FUJITA Tomonori
2009-08-13 8:26 ` David Woodhouse
2009-08-13 8:35 ` FUJITA Tomonori
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