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[PW_SID:1157159] [v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU - #2586

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[PW_SID:1157159] [v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU#2586
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@linux-riscv-bot linux-riscv-bot commented Sep 3, 2026

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PR for series 1157159 applied to workflow__riscv__fixes

Name: [v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1157159
Version: 2

@fangyu0809 Linux RISC-V bot
ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU
67a1b26 
Mirror the ACPI IORT solution used on arm64 (see iort_enable_acs())
by scanning the RIMT table for PCIe root complex nodes during
riscv_acpi_rimt_init(), which runs before ACPI PCI enumeration. If a
root complex node's ID mapping points at an IOMMU node, call
pci_request_acs() immediately, so pci_acs_enable is already set by
the time any PCI device is scanned and pci_enable_acs() runs.

Only one call to pci_request_acs() is needed regardless of how many
root complexes are found, so track that with a static acs_enabled
flag, same as iort_enable_acs() does.

Signed-off-by: Fangyu Yu <fangyu.yu@linux.alibaba.com>
Reviewed-by: Sunil V L <sunilvl@oss.qualcomm.com>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 142.31 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1464.12 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1800.16 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 26.79 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.64 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 0.76 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 91.03 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
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 Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
kdoc
Desc: Detects for kdoc errors
Duration: 0.82 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
module-param
Desc: Detect module_param changes
Duration: 0.24 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

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linux-riscv-bot commented Sep 4, 2026

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Patch 1: "[v2] ACPI: RIMT: Enable PCI ACS for root complexes mapped to an IOMMU"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

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