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| author | Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com> | 2025-07-02 15:07:58 +0530 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-07-15 11:41:52 +0100 |
| commit | 7a4ee419e8c144b747a8915856e91a034d7c8f34 (patch) | |
| tree | 46e0fd9f730f9fb9f9e655de445dad965d00e10f /scripts/lib/kdoc/kdoc_output.py | |
| parent | ad48b1dd14fb217e0a0b0af46744a3d1f6f26dea (diff) | |
iommu/amd: Add debugfs support to dump IOMMU MMIO registers
Analyzing IOMMU MMIO registers gives a view of what IOMMU is
configured with on the system and is helpful to debug issues
with IOMMU.
eg.
-> To get mmio registers value at offset 0x18 for iommu<x> (say, iommu00)
# echo "0x18" > /sys/kernel/debug/iommu/amd/iommu00/mmio
# cat /sys/kernel/debug/iommu/amd/iommu00/mmio
Signed-off-by: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20250702093804.849-3-dheerajkumar.srivastava@amd.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_output.py')
0 files changed, 0 insertions, 0 deletions