linux-kernel - Re: [PATCH 0/8] x86 dma_*_coherent rework patchset v2

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Message-Id: <200808201039.56887.jbarnes@virtuousgeek.org>
Date:	Wed, 20 Aug 2008 10:39:56 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Joerg Roedel <joerg.roedel@....com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	mingo@...hat.com, tglx@...utronix.de, hpa@...or.com,
	linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
	muli@...ibm.com
Subject: Re: [PATCH 0/8] x86 dma_*_coherent rework patchset v2

On Wednesday, August 20, 2008 2:46 am Ingo Molnar wrote:
> * Joerg Roedel <joerg.roedel@....com> wrote:
> > Hi,
> >
> > this patchset reworks the dma_*_coherent functions in the DMA layer
> > for the x86 architecture. The patch series extends the existing DMA
> > backends with missing *coherent callbacks and simplifies the generic
> > function to basically only call the registered backend. This allows
> > future optimizations in hardware specific IOMMU implementations. The
> > code ist tested on AMD64 with AMD IOMMU, GART, SWIOTLB and NOMMU as
> > well as on my old 486 box. Muli tested the Calgary specific patch.
> >
> > Joerg
> >
> > Changes since v1:
> >
> > - fixed wrong logic in the pci-nommu alloc_coherent code
> > - moved dma_*_coherent to include/asm-x86/dma-mapping.h
> >
> > git diff --stat tip/master.. :
> >
> >  arch/x86/kernel/amd_iommu.c      |    2 -
> >  arch/x86/kernel/pci-calgary_64.c |   14 ++++
> >  arch/x86/kernel/pci-dma.c        |  146
> > +------------------------------------- arch/x86/kernel/pci-gart_64.c    |
> >   35 +++++++++-
> >  arch/x86/kernel/pci-nommu.c      |   62 ++++++++++++++++
> >  include/asm-x86/dma-mapping.h    |   47 ++++++++++---
> >  6 files changed, 149 insertions(+), 157 deletions(-)
>
> applied to tip/x86/iommu - thanks Joerg!
>
> Jesse, Fujita-san, do these changes look fine to you?

Yeah, I'll let you push this time. :)

Signed-off-by:  Jesse Barnes <jbarnes@...tuousgeek.org>

-- 
Jesse Barnes, Intel Open Source Technology Center
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