On 06/12/2018 02:41 PM, Gary R Hook wrote: > Implement a skeleton framework for debugfs support in the AMD > IOMMU. Add an AMD-specific Kconfig boolean that depends upon > general enablement of DebugFS in the IOMMU. > > Signed-off-by: Gary R Hook <gary.h...@amd.com>
Gary, Looks good to me. Thanks. > --- > drivers/iommu/Kconfig | 12 ++++++++++++ > drivers/iommu/Makefile | 1 + > drivers/iommu/amd_iommu_debugfs.c | 33 +++++++++++++++++++++++++++++++++ > drivers/iommu/amd_iommu_init.c | 6 ++++-- > drivers/iommu/amd_iommu_proto.h | 6 ++++++ > drivers/iommu/amd_iommu_types.h | 5 +++++ > 6 files changed, 61 insertions(+), 2 deletions(-) > create mode 100644 drivers/iommu/amd_iommu_debugfs.c > > diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig > index f9af25ac409f..5a9cef113763 100644 > --- a/drivers/iommu/Kconfig > +++ b/drivers/iommu/Kconfig > @@ -146,6 +146,18 @@ config AMD_IOMMU_V2 > hardware. Select this option if you want to use devices that support > the PCI PRI and PASID interface. > > +config AMD_IOMMU_DEBUGFS > + bool "Enable AMD IOMMU internals in DebugFS" > + depends on AMD_IOMMU && IOMMU_DEBUGFS > + ---help--- > + !!!WARNING!!! !!!WARNING!!! !!!WARNING!!! !!!WARNING!!! > + > + DO NOT ENABLE THIS OPTION UNLESS YOU REALLY, -REALLY- KNOW WHAT YOU > ARE DOING!!! > + Exposes AMD IOMMU device internals in DebugFS. > + > + This option is -NOT- intended for production environments, and should > + not generally be enabled. > + > # Intel IOMMU support > config DMAR_TABLE > bool > diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile > index 74cfbc392862..47fd6ea9de2d 100644 > --- a/drivers/iommu/Makefile > +++ b/drivers/iommu/Makefile > @@ -11,6 +11,7 @@ obj-$(CONFIG_IOMMU_IOVA) += iova.o > obj-$(CONFIG_OF_IOMMU) += of_iommu.o > obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o > obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o amd_iommu_init.o > +obj-$(CONFIG_AMD_IOMMU_DEBUGFS) += amd_iommu_debugfs.o > obj-$(CONFIG_AMD_IOMMU_V2) += amd_iommu_v2.o > obj-$(CONFIG_ARM_SMMU) += arm-smmu.o > obj-$(CONFIG_ARM_SMMU_V3) += arm-smmu-v3.o -- ~Randy _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
