Kernel-4.18.0-80.el8_al,alpine-msix

Alpine MSIX controller

See arm,gic-v3.txt for SPI and MSI definitions.

Required properties:

• compatible: should be “al,alpine-msix”
• reg: physical base address and size of the registers
• interrupt-parent: specifies the parent interrupt controller.
• interrupt-controller: identifies the node as an interrupt controller
• msi-controller: identifies the node as an PCI Message Signaled Interrupt

      controller
  

• al,msi-base-spi: SPI base of the MSI frame
• al,msi-num-spis: number of SPIs assigned to the MSI frame, relative to SPI0

Example:

msix: msix {
compatible = “al,alpine-msix”;
reg = <0x0 0xfbe00000 0x0 0x100000>;
interrupt-parent = <&gic>;
interrupt-controller;
msi-controller;
al,msi-base-spi = <160>;
al,msi-num-spis = <160>;
};