On Wed, May 24, 2006 at 11:19:56PM -0500, Jon Mason wrote:
> On Thu, May 25, 2006 at 05:54:23AM +0200, Andi Kleen wrote:
> > On Thursday 25 May 2006 05:34, Jon Mason wrote:
> > > swiotlb relies on the gart specific iommu_aperture variable to know if
> > > we discovered a hardware IOMMU before swiotlb initialization. Introduce
> > > iommu_detected to do the same thing, but in a HW IOMMU neutral manner,
> > > in preparation for adding the Calgary HW IOMMU.
> >
> > I applied them all.
>
> Fantastic!
Seconded :-)
> > But I think you broke the aperture setup. iommu_setup really
> > needs to be called early, otherwise aperture.c doesn't get
> > the right parameters. I undid that change.
>
> I'll take a look at that, but I did boot test these patches on my
> opteron system and didn't notice anything wrong. Are the patches
> available for me to look at on firstfloor?
ftp://ftp.firstfloor.org/pub/ak/x86_64/quilt/patches/
> > And please next time send against the latest tree. It required
> > quite some tweaking to apply.
>
> Sorry, I pulled a the latest mercurial tree this morning, but I guess
> that one is stale (or became stale over the day).
I guess Andi means the firstfloor tree, which has a number of other
IOMMU related changes that are not in mainline yet. Let's take it for
a spin.
Cheers,
Muli
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