[PATCH v4 0/5] iommu/amd: SVA Support (part 2) - deprecate iommu_v2 module

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

This is part 2 of the 4-part series to introduce Share Virtual Address
(SVA) support. This series removes iommu_v2 module support.

AMD GPU driver which was the only in-kernel user of iommu_v2 module is
removed dependency on iommu_v2 module. These changes are already in
upstream (v6.6 merge window).

Also subsequent series will add SVA spuport in AMD IOMMU driver. Device
drivers are expected to use common SVA framework to enable device
PASID/PRI features.

Hence this series removes iommu_v2 module and the functions used to support
iommu_v2 module. Note that there are certain functions (ex: PPR interrupt
handling code) which will be used in subsequent series for SVA support.
Hence not removed those functions.

This patch series is based on top of iommu/next branch (Commit 8e5ab3f54a10).


Changes from v3 -> v4:
  - Rebased on top of iommu/next branch
  - Added 'Tested-by'

v3 : https://lore.kernel.org/linux-iommu/20230921093140.6162-1-vasant.hegde@amd.com/T/#t

Changes from v2 -> v3:
  - Updated description as AMD GPU related changes are merged in v6.6 merge window
  - Few other updated to description based on Jerry's suggestion
  - Added Reviewed-by tags

v2 : https://lore.kernel.org/linux-iommu/20230821104956.707235-1-vasant.hegde@amd.com/T/#t

Changes from v1 -> v2:
  - Added patch to revert commit 2380f1e8195e

v1 : https://lore.kernel.org/linux-iommu/20230815103255.565295-1-vasant.hegde@amd.com/


Thank you,
Vasant / Suravee

Vasant Hegde (5):
  iommu/amd: Remove iommu_v2 module
  iommu/amd: Remove PPR support
  iommu/amd: Remove amd_iommu_device_info()
  iommu/amd: Remove unused EXPORT_SYMBOLS
  Revert "iommu: Fix false ownership failure on AMD systems with PASID activated"

 drivers/iommu/amd/Kconfig           |   9 -
 drivers/iommu/amd/Makefile          |   1 -
 drivers/iommu/amd/amd_iommu.h       |   7 -
 drivers/iommu/amd/amd_iommu_types.h |  21 +-
 drivers/iommu/amd/init.c            |   1 -
 drivers/iommu/amd/iommu.c           | 133 +---
 drivers/iommu/amd/iommu_v2.c        | 996 ----------------------------
 drivers/iommu/iommu.c               |  20 +-
 include/linux/amd-iommu.h           | 120 ----
 9 files changed, 10 insertions(+), 1298 deletions(-)
 delete mode 100644 drivers/iommu/amd/iommu_v2.c

-- 
2.31.1