diff options
| author | Shradha Todi <shradha.t@samsung.com> | 2025-02-21 18:45:46 +0530 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2025-03-06 08:55:47 +0000 |
| commit | 4fbfa17f9a075593281034f566ca79cbf4930c82 (patch) | |
| tree | b6e181316f0e9e9d0996e4c8bcebc0f6bd4dbb36 /include/linux | |
| parent | efaf16de43f59992afd37b4b8beb30ef511ddbfd (diff) | |
PCI: dwc: Add debugfs based Silicon Debug support for DWC
Add support to provide Silicon Debug interface to userspace.
This set of debug registers are part of the RAS DES feature present in
DesignWare PCIe controllers.
Co-developed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Shradha Todi <shradha.t@samsung.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Tested-by: Hrishikesh Deleep <hrishikesh.d@samsung.com>
Link: https://lore.kernel.org/r/20250221131548.59616-4-shradha.t@samsung.com
[kwilczynski: commit log, tidy up Kconfig and drop "default y", tidy up
code comments, squashed patch that fixes a NULL pointer dereference when
debugfs is already unavailable during clean-up from
https://lore.kernel.org/linux-pci/20250225171239.19574-2-manivannan.sadhasivam@linaro.org,
refactor dwc_pcie_debugfs_init() to not return errors, squashed patch that
changes how lack of the RAS DES capability is handled from
https://lore.kernel.org/linux-pci/20250304151814.6xu7cbpwpqrvcad5@thinkpad]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/pcie-dwc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/pcie-dwc.h b/include/linux/pcie-dwc.h index 6e4e1307ad6e..007b3f1b7b17 100644 --- a/include/linux/pcie-dwc.h +++ b/include/linux/pcie-dwc.h @@ -28,6 +28,8 @@ static const struct dwc_pcie_vsec_id dwc_pcie_rasdes_vsec_ids[] = { .vsec_id = 0x02, .vsec_rev = 0x4 }, { .vendor_id = PCI_VENDOR_ID_QCOM, .vsec_id = 0x02, .vsec_rev = 0x4 }, + { .vendor_id = PCI_VENDOR_ID_SAMSUNG, + .vsec_id = 0x02, .vsec_rev = 0x4 }, {} }; |