On Thu, Oct 04, 2007 at 11:19:33AM +1000, Benjamin Herrenschmidt wrote:
> > Index: 2.6-mm/include/linux/pci.h
> > ===================================================================
> > --- 2.6-mm.orig/include/linux/pci.h 2007-10-03 13:48:20.000000000 -0700
> > +++ 2.6-mm/include/linux/pci.h 2007-10-03 13:49:08.000000000 -0700
> > @@ -195,6 +195,7 @@
> > #ifdef CONFIG_PCI_MSI
> > struct list_head msi_list;
> > #endif
> > + void *iommu_private; /* hook for IOMMU specific extension */
> > };
>
> I'm not fan of this. That would imply that iommu stuff is specific to
> PCI or that sort of thing.
>
> Why don't you use the new struct dev_archdata mechanism ? That's what I
> use on powerpc to provide optional iommu linkage to any device in the
> system.
Good one. I will certainly try out your idea and will update the list
tomorrow.
-Anil
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