These patches create a top-level function to create a debugfs directory
for the IOMMU, under which drivers may create and populate-specific
directories for their device internals.
Patch 1: general IOMMU enablement
Patch 2: basic AMD enablement to demonstrate linkage with patch 1
Introduce a new Kconfig parameter IOMMU_DEBUG to globally allow or
disallow debugfs code to be built.
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Gary R Hook (2):
iommu - Enable debugfs exposure of the IOMMU
iommu/amd: Add basic debugfs infrastructure for AMD IOMMU
drivers/iommu/Kconfig | 9 +++++++
drivers/iommu/Makefile | 2 ++
drivers/iommu/amd_iommu_debugfs.c | 47 +++++++++++++++++++++++++++++++++++++
drivers/iommu/amd_iommu_init.c | 7 ++++--
drivers/iommu/amd_iommu_proto.h | 6 +++++
drivers/iommu/amd_iommu_types.h | 3 ++
drivers/iommu/iommu-debugfs.c | 32 +++++++++++++++++++++++++
include/linux/iommu.h | 4 +++
8 files changed, 108 insertions(+), 2 deletions(-)
create mode 100644 drivers/iommu/amd_iommu_debugfs.c
create mode 100644 drivers/iommu/iommu-debugfs.c
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