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[PW_SID:1071025] iommu/riscv: Add DebugFS support for register dump#1661

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[PW_SID:1071025] iommu/riscv: Add DebugFS support for register dump#1661
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@linux-riscv-bot linux-riscv-bot commented Mar 23, 2026

PR for series 1071025 applied to workflow__riscv__fixes

Name: iommu/riscv: Add DebugFS support for register dump
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1071025
Version: 1

iommu/riscv: Add DebugFS support for register dump
07ae6c0 
Add a DebugFS interface to allow users to dump the internal state of
the RISC-V IOMMU hardware. This is essential for diagnosing hardware
initialization issues and debugging driver-hardware communication
such as Command or Fault queue stalls.

The implementation exposes a "registers" file under the device's
debugfs directory. It uses the standard debugfs_regset32 structure
to dump core registers:

* Global configuration: capabilities, fctl, ddtp
* Command Queue: cqb, cqh, cqt, cqcsr
* Fault Queue: fqb, fqh, fqt, fqcsr
* Interrupts: ipsr, icvec

Signed-off-by: Sean Chang <seanwascoding@gmail.com>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 137.85 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1124.49 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1637.03 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 26.64 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.85 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 2.79 seconds
Result: WARNING
Output:

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#60: 
new file mode 100644

total: 0 errors, 1 warnings, 0 checks, 108 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 07ae6c0abf6a ("iommu/riscv: Add DebugFS support for register dump") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 0 checks, 108 lines checked
WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.21 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
kdoc
Desc: Detects for kdoc errors
Duration: 0.87 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
module-param
Desc: Detect module_param changes
Duration: 0.25 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.21 seconds
Result: PASS

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linux-riscv-bot commented Mar 23, 2026

Patch 1: "iommu/riscv: Add DebugFS support for register dump"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

@linux-riscv-bot linux-riscv-bot deleted the pw1071025 branch March 31, 2026 00:06
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