Hi Marc, On 07/21/2015 06:07 PM, Marc Zyngier wrote:
The irqdomain code is not entierely really ACPI friendly, as it has some built-in knowledge of the device-tree. Nothing too harmful, but enough to scare the ARM ACPI developpers which end up with their own version of the square wheel. This small patch series adapt the irqdomain code to remove the hurdles that prevent the full blown irqdomain subsystem to be used on ACPI, creates an interface between the GSI layer and the irqdomain, and as an example, convert the ARM GIC ACPI support to use irqdomains as originally intended. Overall, this gives us a way to use irqdomains on both DT and ACPI enabled platforms, having very little changes made to the actual drivers (other than the probing infrastructure). Because we keep the flow of information between the various layers identical between ACPI and DT, we immediately benefit from the existing infrastructure. I'd really like to hear what people think of that approach, as it looks to me a lot simpler than the other approaches currently put on the list. The "convert the GSI information to be DT friendly" is admitedly not very pretty, but I see it as a stepping stone towards unifying the two structures. This has been test-booted on Juno, and is based on my irq/ncpi-msi-2 branch.
Thank you very much for putting them together, really appreciated. I will comment on each patch and test them. Thanks Hanjun -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
