[PATCH v1 00/13] Improve TLB invalidation logic

[Vasant Hegde <vasant.hegde@amd.com>]

Current code invalidates single page and entire range for the given
domain ID. IOMMU hardware supports multiple page invalidation.
This series adds support to invalidate range of pages.

Also consolidate various invalidation functions, remove unused functions,
re-arranges invalidation related functions.

Note that this series doesn't add support for PASID based invalidation (except
PASID 0 for v2 page table). We will include necessary changes in SVA series.

Testing:
  - This series is tested with v1 and v2 page table and it works fine.

This patch series is based on top of SVA Part 2 [1] which in turn based on
top of iommu/next branch (Commit 8e5ab3f54a10).
  [1] https://lore.kernel.org/linux-iommu/20231006095706.5694-1-vasant.hegde@amd.com/T/#t

This is also available at github :
   https://github.com/AMDESE/linux/tree/iommu_flush_improvement_v1_v6.6_rc1


Thank you,
Vasant


Vasant Hegde (13):
  iommu/amd: Rename iommu_flush_all_caches() -> amd_iommu_flush_all_caches()
  iommu/amd: Remove redundant domain flush from attach_device()
  iommu/amd: Remove redundant passing of PDE bit
  iommu/amd: Add support to invalidate multiple guest pages
  iommu/amd: Refactor IOMMU tlb invalidation code
  iommu/amd: Refactor device iotlb invalidation code
  iommu/amd: Consolidate device IOTLB flush code
  iommu/amd: Consolidate amd_iommu_domain_flush_complete() call
  iommu/amd: Refactor domain flush global function
  iommu/amd: Consolidate domain flush logic
  iommu/amd/pgtbl_v2: Invalidate updated page ranges only
  iommu/amd: Remove unused flush pasid functions
  iommu/amd: Rearrange device flush code

 drivers/iommu/amd/amd_iommu.h       |  12 +-
 drivers/iommu/amd/amd_iommu_types.h |   6 -
 drivers/iommu/amd/init.c            |   8 +-
 drivers/iommu/amd/io_pgtable.c      |   5 +-
 drivers/iommu/amd/io_pgtable_v2.c   |  10 +-
 drivers/iommu/amd/iommu.c           | 417 ++++++++++++----------------
 6 files changed, 189 insertions(+), 269 deletions(-)

-- 
2.31.1