[PATCH 00/11] Convert Intel IOMMU to use sva-lib helpers

[Lu Baolu]

This patch series converts the Intel IOMMU to use the generic sva
helpers defined in iommu-sva-lib.c and io-pgfault.c. It includes the
SVA pasid management and IO page fault handling.

This series could be divided into below parts:
PATCH[1~3]: Use iommu_sva_alloc/free_pasid() to manage the SVA pasid.
PATCH[4-6]: Use the generic sva io page fault handler iommu_queue_iopf.
PATCH[7-11]: Add ftrace and debugfs support for io page fault handling.

Please help to review.

Best regards,
baolu

Lu Baolu (11):
  iommu/vt-d: Add pasid private data helpers
  iommu/vt-d: Use iommu_sva_alloc(free)_pasid() helpers
  iommu/vt-d: Use common helper to lookup svm devices
  iommu/vt-d: Refactor prq_event_thread()
  iommu/vt-d: Allocate/register iopf queue for sva devices
  iommu/vt-d: Report prq to io-pgfault framework
  iommu/vt-d: Add prq_report trace event
  iommu/vt-d: Add common code for dmar latency performance monitors
  iommu/vt-d: Expose latency monitor data through debugfs
  iommu/vt-d: Add cache invalidation latency sampling
  iommu/vt-d: Add PRQ handling latency sampling

 include/linux/intel-iommu.h        |  33 +-
 drivers/iommu/intel/perf.h         |  73 ++++
 include/trace/events/intel_iommu.h |  37 ++
 drivers/iommu/intel/debugfs.c      | 111 +++++
 drivers/iommu/intel/dmar.c         |  31 ++
 drivers/iommu/intel/iommu.c        |  73 +++-
 drivers/iommu/intel/perf.c         | 166 ++++++++
 drivers/iommu/intel/svm.c          | 627 ++++++++++++++---------------
 drivers/iommu/intel/Kconfig        |   5 +
 drivers/iommu/intel/Makefile       |   1 +
 10 files changed, 819 insertions(+), 338 deletions(-)
 create mode 100644 drivers/iommu/intel/perf.h
 create mode 100644 drivers/iommu/intel/perf.c

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2.25.1