[Resend in plain text mode] Hi Lorenzo, Rafael, ACPI 6.1 spec does not specify how to set interrupt polarity and trigger mode in _PRT when the interrupts are static (hardwired to specific interrupt inputs in interrupt controller). In current acpi_pci_irq_enable (drivers/acpi/pci_irq.c) implementation, by default the trigger mode is set to LEVEL_SENSITIVE, polarity is set to ACTIVE_LOW. This default setting won't work for ARM64 GICv2, GICv2m, GICv3 controllers and will cause failures in PCIe AER, PME services (on X-Gene platforms). Is there any way to specify polarity and trigger mode for static interrupts in _PRT? If not, can we introduce a _weak_ hook to specify default polarity and trigger mode for for ARM64 PCIe INTx in drivers/acpi/pci_irq.c? Regards, Duc Dang. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
