[PW_SID:1092037] PCI: dwc: Cache PCIe capability offset and simplify drivers by linux-riscv-bot · Pull Request #1898 · linux-riscv/linux

linux-riscv-bot · 2026-05-09T14:05:34Z

PR for series 1092037 applied to workflow__riscv__fixes

Name: PCI: dwc: Cache PCIe capability offset and simplify drivers
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1092037
Version: 1

Add a pcie_cap field to struct dw_pcie to store the offset of the PCI Express Capability structure. Provide a helper dw_pcie_get_pcie_cap() which performs the capability search on first call and caches the result. This is a preparatory step for replacing repetitive capability searches in both core and platform drivers. Signed-off-by: Hans Zhang <18255117159@163.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Modify the DWC core functions to use the cached pcie_cap offset instead of calling dw_pcie_find_capability() each time. Signed-off-by: Hans Zhang <18255117159@163.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

Replace explicit dw_pcie_find_capability(pci, PCI_CAP_ID_EXP) calls with the cached pci->pcie_cap in all DWC-based platform drivers: - i.MX6, Layerscape EP, Meson - Rockchip (also remove redundant NULL check and fix typo) - Eswin, Fu740 - Intel Gateway, Qualcomm EP, Qualcomm RC - Sophgo, Spacemit-k1, Spear13xx - Tegra194 (remove private pcie_cap_base) For drivers that need the offset before the core caches it (e.g., ls_pcie_ep_probe), use dw_pcie_get_pcie_cap() to ensure caching. Adjust variable types from u16 to u8 where appropriate. Signed-off-by: Hans Zhang <18255117159@163.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

linux-riscv-bot · 2026-05-09T14:11:29Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 139.77 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T14:30:19Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1128.37 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T14:58:23Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1682.60 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T14:58:50Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.49 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T14:59:19Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.37 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T14:59:21Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 0.77 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:00:51Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 88.46 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:00:52Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:00:55Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
kdoc
Desc: Detects for kdoc errors
Duration: 0.90 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:00:56Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
module-param
Desc: Detect module_param changes
Duration: 0.26 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:00:58Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:01:02Z

Patch 1: "[1/3] PCI: dwc: Add pcie_cap field and helper in designware header"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 2.43 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:03:37Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 139.49 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:22:34Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1135.58 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:50:39Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1684.37 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:51:07Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.84 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:51:35Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 26.87 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:51:38Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.22 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:53:06Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 86.92 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:53:08Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:53:12Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
kdoc
Desc: Detects for kdoc errors
Duration: 2.05 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:53:13Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
module-param
Desc: Detect module_param changes
Duration: 0.33 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:53:15Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:53:17Z

Patch 2: "[2/3] PCI: dwc: Use cached PCIe capability offset in core"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T15:55:51Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 140.35 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:14:45Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1131.97 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:42:55Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1689.06 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:43:22Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 25.23 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:43:50Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.10 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:43:55Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 3.30 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:45:24Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 87.48 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:45:26Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.24 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:45:28Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
kdoc
Desc: Detects for kdoc errors
Duration: 0.88 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:45:30Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
module-param
Desc: Detect module_param changes
Duration: 0.30 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:45:31Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.23 seconds
Result: PASS

linux-riscv-bot · 2026-05-09T16:45:33Z

Patch 3: "[3/3] PCI: dwc: Simplify platform drivers using cached capability offset"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

Linux RISC-V bot and others added 4 commits May 2, 2026 08:13

Adding CI files

2c3b264

PCI: dwc: Use cached PCIe capability offset in core

d43a318

Modify the DWC core functions to use the cached pcie_cap offset instead of calling dw_pcie_find_capability() each time. Signed-off-by: Hans Zhang <18255117159@163.com> Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>

linux-riscv-bot force-pushed the workflow__riscv__fixes branch 2 times, most recently from 2d4fcdd to cd9d421 Compare May 14, 2026 08:49

linux-riscv-bot closed this May 17, 2026

linux-riscv-bot deleted the pw1092037 branch May 17, 2026 02:15

Conversation

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

linux-riscv-bot commented May 9, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone