[PATCH 0/7] arm-smmu: Implementation and context format differentiation

[Robin Murphy]

Hi all,

This is almost 3 separate sub-series, but there's enough interdependency
and horrid merge conflicts that I've been keeping it all together.

- Patches 1-3 rationalise implementation-specific details and errata,
  in order to start shovelling in yet more wonderful workarounds.
- Patches 3-6 do a broadly similar thing for context formats, breaking
  the effective hard-coding to allow it to become a runtime choice.
  (With the bonus of unblocking short-descriptor support, once I find
  and revive the hac^Wpatches I was using for that.)
- Patch 7 then takes advantage of the previous changes to support the
  hilarious raison d'etre of MMU-401, in all its glory.

This is all based on top of the ThunderX patches in Will's iommu/devel
branch. It also conflicts somewhat with my per-domain page size series;
since this is probably less contentious, I expect I'll optimistically
rebase that on top of this one before I post it again.

Robin.
---

Robin Murphy (7):
  iommu/arm-smmu: Differentiate specific implementations
  iommu/arm-smmu: Convert ThunderX workaround to new method
  iommu/arm-smmu: Work around MMU-500 prefetch errata
  io-64-nonatomic: Add relaxed accessor variants
  iommu/arm-smmu: Tidy up 64-bit/atomic I/O accesses
  iommu/arm-smmu: Decouple context format from kernel config
  iommu/arm-smmu: Support SMMUv1 64KB supplement

 Documentation/arm64/silicon-errata.txt |   1 +
 drivers/iommu/arm-smmu.c               | 238 +++++++++++++++++++++++----------
 include/linux/io-64-nonatomic-hi-lo.h  |  25 ++++
 include/linux/io-64-nonatomic-lo-hi.h  |  25 ++++
 4 files changed, 216 insertions(+), 73 deletions(-)

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2.7.3.dirty