5037ec713a
As the PLDA DT binding doc (Documentation/devicetree/bindings/pci/ plda,xpressrich3-axi-common.yaml) shows, PLDA PCIe contains an interrupt controller. Microchip PolarFire PCIe event IRQs include PLDA interrupts and PolarFire additional interrupts. The interrupt irqchip ops includes ack/mask/unmask interrupt ops, which will write correct registers. Microchip PolarFire PCIe additional interrupts require to write PolarFire SoC self-defined registers. So Microchip PCIe event irqchip ops can not be re-used. Microchip PolarFire PCIe additional interrupts (defined in drivers/pci/controller/plda/pcie-microchip-host.c): EVENT_PCIE_L2_EXIT EVENT_PCIE_HOTRST_EXIT EVENT_PCIE_DLUP_EXIT EVENT_SEC_TX_RAM_SEC_ERR EVENT_SEC_RX_RAM_SEC_ERR ... To support PLDA its own event IRQ process, implements PLDA irqchip ops and add event irqchip field to struct pcie_plda_rp. [kwilczynski: commit log] Link: https://lore.kernel.org/linux-pci/20240328091835.14797-16-minda.chen@starfivetech.com Signed-off-by: Minda Chen <minda.chen@starfivetech.com> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Conor Dooley <conor.dooley@microchip.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.