[PATCH v3 00/12] iommu/amd: SVA Support (Part 4) - SVA and IOPF

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

This is part 4 of the 4-part series to introduce Share Virtual Address
(SVA) support for devices, which can support PCI ATS, PASID and PRI
capabilities. These devices are referred to as SVA-capable devices in
this series.

It contains the following enhancements:

* Patch 1 - 4:
  Rename, add support to enable/disable features, update DTE etc.

* Patch 5 - 6:
  Introduce SVA support

* Patch 7 - 12:
  Add IOPF support

This patch series is based on top of SVA Part 3.
  https://lore.kernel.org/linux-iommu/20230816174031.634453-1-vasant.hegde@amd.com/T/#t

Also depends on :
  1) Tina's SVA domain improvement
     https://lore.kernel.org/linux-iommu/20230827084401.819852-1-tina.zhang@intel.com/

  2) Baolu's IOPF improvement
     https://lore.kernel.org/linux-iommu/cbfbe969-1a92-52bf-f00c-3fb89feefd66@linux.intel.com/


This is also available at github :
  https://github.com/AMDESE/linux/tree/iommu_sva_part4_v3_v6.6_rc5


Thanks everyone who reviewed previous version and provided valuable feedbacks.

Changes from v2 -> v3:
  - Rename sva.c -> pasid.c
  - Changed amd_iommu_sva_supported() -> amd_iommu_pasid_supported()
  - Added patch to update/flush DTE
  - Rework part of SVA support (Patch 5 and 6)
  - Move IOPF enablement to PASID bind time

v2: https://lore.kernel.org/linux-iommu/20230911121046.1025732-1-vasant.hegde@amd.com/T/#u

Changes from v1 -> v2:
  - Added new patch to fix PASID override issue in GCR3 table
  - Complete rework of SVA code on top of Tina's SVA series.
  - Rework SVA enable code
  - Reworked IOPF handler code on top of Baolu's IOPF improvement series.

v1: https://lore.kernel.org/linux-iommu/20230823140415.729050-1-vasant.hegde@amd.com/T/#t

Thank you,
Vasant / Suravee


Suravee Suthikulpanit (5):
  iommu/amd: Add support to enable/disable PASID feature
  iommu/amd: Move PPR-related functions into ppr.c
  iommu/amd: Define per-IOMMU iopf_queue
  iommu/amd: Add support for page response
  iommu/amd: Introduce logic to enable/disable IOPF

Vasant Hegde (4):
  iommu/amd: Rename amd_iommu_v2_supported() as amd_iommu_pasid_supported()
  iommu/amd: Do not override PASID entry in GCR3 table
  iommu/amd: Introduce per device DTE update function
  iommu/amd: Initial SVA support for AMD IOMMU

Wei Huang (3):
  iommu/amd: Add support for enabling/disabling IOMMU features
  iommu/amd: Add support for add/remove device for IOPF
  iommu/amd: Add IO page fault notifier handler

 drivers/iommu/amd/Kconfig           |   2 +
 drivers/iommu/amd/Makefile          |   2 +-
 drivers/iommu/amd/amd_iommu.h       |  47 +++-
 drivers/iommu/amd/amd_iommu_types.h |  27 ++
 drivers/iommu/amd/init.c            |  72 ++----
 drivers/iommu/amd/iommu.c           | 189 ++++++++------
 drivers/iommu/amd/pasid.c           | 291 ++++++++++++++++++++++
 drivers/iommu/amd/ppr.c             | 366 ++++++++++++++++++++++++++++
 8 files changed, 858 insertions(+), 138 deletions(-)
 create mode 100644 drivers/iommu/amd/pasid.c
 create mode 100644 drivers/iommu/amd/ppr.c

-- 
2.31.1