Re: [PATCH 09/10] x86/VT-d: Make Intel VT-d IOMMU use IOMMU_INIT_*macros.

[Konrad Rzeszutek Wilk]

On Tue, Sep 07, 2010 at 11:10:30AM -0700, Tony Luck wrote:
> On Thu, Aug 26, 2010 at 10:58 AM, Konrad Rzeszutek Wilk
> <konrad.wilk@xxxxxxxxxx> wrote:
> > We utilize the IOMMU_INIT macros to create this dependency:
> ...
> >  drivers/pci/dmar.c |    4 +++-
> >  1 files changed, 3 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c
> > index 5fa64ea..4ef56a0 100644
> > --- a/drivers/pci/dmar.c
> > +++ b/drivers/pci/dmar.c
> > @@ -36,6 +36,7 @@
> >  #include <linux/tboot.h>
> >  #include <linux/dmi.h>
> >  #include <linux/slab.h>
> > +#include <asm/iommu_table.h>
> 
> This breaks ia64 - since you didn't make an asm/iommu_table.h for it :-(

Oh no! Well, perhaps moving it to a wider audience is the right thing..
But for right now let me be a bit conservative.
> 
> Just copying the x86 one led to complaints about pci_swiotlb_detect_4gb()
> not being declared ... so I think I need a bit more of the same infrastructure
> you made of x86.

Under ia64 you only have to IOMMUs right? DMAR and SWIOTLB?

If you do this patch it should compile fine, let me think a bit about
how to make the iommu_* pieces platform-agnostic.