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| author | Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com> | 2025-07-02 15:07:59 +0530 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2025-07-15 11:41:52 +0100 |
| commit | 4d9c5d5a1dc940e44084e5cab780e1646501b6c1 (patch) | |
| tree | a4adb13dc89cd0aa85dea789d4a5d108f5265841 /scripts/lib/kdoc/kdoc_output.py | |
| parent | 7a4ee419e8c144b747a8915856e91a034d7c8f34 (diff) | |
iommu/amd: Add debugfs support to dump IOMMU Capability registers
IOMMU Capability registers defines capabilities of IOMMU and information
needed for initialising MMIO registers and device table. This is useful
to dump these registers for debugging IOMMU related issues.
e.g.
-> To get capability registers value at offset 0x10 for iommu<x> (say,
iommu00)
# echo "0x10" > /sys/kernel/debug/iommu/amd/iommu00/capability
# cat /sys/kernel/debug/iommu/amd/iommu00/capability
Signed-off-by: Dheeraj Kumar Srivastava <dheerajkumar.srivastava@amd.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20250702093804.849-4-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