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From: Ingo Molnar <mingo@elte.hu>
To: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: joerg.roedel@amd.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] fix GART to respect device's dma_mask about virtual mappings
Date: Sun, 14 Sep 2008 16:45:08 +0200	[thread overview]
Message-ID: <20080914144508.GG12522@elte.hu> (raw)
In-Reply-To: <1221216155-17640-1-git-send-email-fujita.tomonori@lab.ntt.co.jp>


* FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> wrote:

> Currently, gart IOMMU ignores device's dma_mask when it does virtual
> mappings. So it could give a device a virtual address that the device
> can't access to.
> 
> Some IOMMUs, in x86 IOMMUs GART and Calgary, have this issue. This
> patchset fixes GART.
> 
> The first and second patches add helper functions, useful for some
> IOMMUs (both are taken from POWER IOMMU code). I'll convert some
> IOMMUs to use the functions after they are merged into mainline (to
> avoid complicated dependence on multiple trees).
> 
> This is against tip/x86/iommu plus a patch that I sent yesterday:
> 
> http://lkml.org/lkml/2008/9/11/147.

applied them to tip/x86/iommu:

bee44f2: x86: make GART to respect device's dma_mask about virtual mappings
589fc9a: iommu: add dma_get_mask helper function
eecfffc: iommu: add iommu_device_max_index IOMMU helper function

thanks!

	Ingo

  parent reply	other threads:[~2008-09-14 14:45 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-09-12 10:42 FUJITA Tomonori
2008-09-12 10:42 ` [PATCH 1/3] add iommu_device_max_index IOMMU helper function FUJITA Tomonori
2008-09-12 10:42   ` [PATCH 2/3] add dma_get_mask " FUJITA Tomonori
2008-09-12 10:42     ` [PATCH 3/3] x86: make GART to respect device's dma_mask about virtual mappings FUJITA Tomonori
2008-09-12 14:52       ` Joerg Roedel
2008-09-12 15:11         ` FUJITA Tomonori
2008-09-14 14:45 ` Ingo Molnar [this message]
2008-09-16  0:54 ` [PATCH 0/3] fix " Andi Kleen
2008-09-16 13:20   ` FUJITA Tomonori
2008-09-16 13:43     ` Andi Kleen
2008-09-16 17:13       ` FUJITA Tomonori
2008-09-16 17:58         ` Andi Kleen
2008-09-16 23:53           ` FUJITA Tomonori
2008-09-17  0:24             ` Andi Kleen
2008-09-17 19:20               ` FUJITA Tomonori
2008-09-18 18:20                 ` Andi Kleen
2008-09-18 22:15                   ` FUJITA Tomonori
2008-09-19  0:44                     ` Andi Kleen
2008-09-22 19:12                       ` FUJITA Tomonori
2008-09-22 20:35                         ` Andi Kleen
2008-09-23  4:02                           ` FUJITA Tomonori
2008-09-17 10:43             ` Ingo Molnar
2008-09-18 18:25               ` Andi Kleen
2008-09-16 15:52     ` Joerg Roedel
2008-09-16 16:20       ` Andi Kleen

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