IOMMU: Make iommu_ops per-bus_type

Hi,

here is the new version of the patch-set to make the iommu_ops used in
the iommu-api a bus_type property. This will allow us to move code out
of the iommu drivers into generic code and it simplifies the
implementation of the Alex' device-group property.

Greg, can you have a look at patch 2 please and tell me if you have any
objections?

With this version the patch-set is complete (not as the first RFC post).
It converts all iommu drivers to use the new registration interface and
completly removes the register_iommu interface.

Regards,

	Joerg

Diffstat:

 arch/ia64/kvm/kvm-ia64.c           |    3 +-
 arch/x86/kvm/x86.c                 |    3 +-
 drivers/base/bus.c                 |   16 ++++++++++
 drivers/iommu/amd_iommu.c          |    2 +-
 drivers/iommu/intel-iommu.c        |    2 +-
 drivers/iommu/iommu.c              |   58 ++++++++++++++++++++++++------------
 drivers/iommu/msm_iommu.c          |    2 +-
 drivers/iommu/omap-iommu.c         |    2 +-
 drivers/media/video/omap3isp/isp.c |    2 +-
 include/linux/device.h             |    9 +++++
 include/linux/iommu.h              |   21 +++++++------
 virt/kvm/iommu.c                   |    4 +-
 12 files changed, 86 insertions(+), 38 deletions(-)


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