[PATCH 0/3] IOMMU: move page number calculation to generic code

[Joerg Roedel]

This small patch series introduces a generic iommu_num_pages function into the
IOMMU helper code. This function can be used to calculate the number of pages
an IOMMU has to map for a specific mapping request.

The patchset converts the x86 IOMMU implementations for AMD IOMMU and the GART
to use this function.

Other IOMMU implementations are not changed because I can't test them.

diffstat:

 arch/x86/kernel/amd_iommu.c   |   13 +++++--------
 arch/x86/kernel/pci-gart_64.c |   11 ++++-------
 include/linux/iommu-helper.h  |    1 +
 lib/iommu-helper.c            |    8 ++++++++
 4 files changed, 18 insertions(+), 15 deletions(-)



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