From: Daniel Haid <d.haid@gogi.tv>
To: Andi Kleen <andi@firstfloor.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
<linux-kernel@vger.kernel.org>
Subject: Re: Question about iommu on x86_64 and radeon driver.
Date: Wed, 25 May 2011 11:00:33 +0100 [thread overview]
Message-ID: <08370791664f069624d25c757ed101c0@admin.gogi.tv> (raw)
In-Reply-To: <m2wrhf4sw5.fsf@firstfloor.org>
> I added it originally. The VIA chipset seems to hang on most
> DMAs through the IOMMU, so it was disabled.
I see. Now, maybe this will not work for some reason, but
would it be possible to somehow disable both IOMMU and SWIOTLB
and tell all drivers only to do DMA with the lower 4GB of memory?
Unfortunately simply turning "iommu=off" does not work for me
as the sata and pata drivers stop working.
next prev parent reply other threads:[~2011-05-25 10:00 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-22 21:56 Daniel Haid
2011-05-23 22:05 ` Konrad Rzeszutek Wilk
2011-05-23 23:45 ` Daniel Haid
2011-05-24 15:50 ` Konrad Rzeszutek Wilk
2011-05-24 21:33 ` Daniel Haid
2011-05-25 12:58 ` Konrad Rzeszutek Wilk
2011-05-25 14:28 ` Daniel Haid
2011-05-24 22:48 ` Andi Kleen
2011-05-25 10:00 ` Daniel Haid [this message]
2011-05-25 12:57 ` Konrad Rzeszutek Wilk
2011-05-25 14:51 ` Daniel Haid
2011-05-25 20:21 ` Daniel Haid
2011-05-25 23:05 ` Andi Kleen
2011-05-27 15:48 ` Daniel Haid
2011-05-27 15:55 ` Konrad Rzeszutek Wilk
2011-05-27 22:20 ` Daniel Haid
2011-05-31 13:45 ` Konrad Rzeszutek Wilk
2011-05-31 15:34 ` Daniel Haid
2011-05-31 16:02 ` Konrad Rzeszutek Wilk
[not found] ` <0a8cb4bcad7fcf091a6bbe158323bba0@admin.gogi.tv>
2011-05-31 16:20 ` Daniel Haid
[not found] ` <20110531190412.GA21245@dumpdata.com>
2011-05-31 19:57 ` Daniel Haid
2011-06-01 13:24 ` Konrad Rzeszutek Wilk
2011-06-01 16:10 ` Daniel Haid
2011-06-01 21:51 ` Andi Kleen
2011-06-01 21:58 ` Daniel Haid
2011-06-01 22:22 ` Andi Kleen
2011-06-03 17:31 ` [PATCH] tentative fix for radeon on systems >4GB without hardware iommu Daniel Haid
2011-06-03 20:44 ` Alex Deucher
2011-06-03 23:13 ` Konrad Rzeszutek Wilk
2011-06-06 17:45 ` Daniel Haid
2011-06-06 17:41 ` Daniel Haid
2011-06-06 19:08 ` Alex Deucher
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