[PATCH v2] ARM64: kernel: implement ACPI parking protocol

[Loc Ho]

Hi,

>
> [CC'ed Jeremy - I know he is testing this on m400]
>
> On Fri, Dec 18, 2015 at 06:12:20PM -0800, Loc Ho wrote:
>
> [...]
>
>> >> I put it together to make sure that it is there if any platform
>> >> compliant with it relies on it and more importantly to prevent
>> >> non-compliant implentations from trickling into the kernel,
>> >> basically to prevent broken firmware implementations from being
>> >> considered compliant and "working".
>> >
>> > That's a good point. However, AFAIK, AMD are using PSCI already in their
>> > firmware implementation and that's what we recommend anyway if EL3 is
>> > available.
>> >
>> > So this patch is mainly aimed at X-Gene since other implementations I'm
>> > aware of have EL3 already. What are the chances of Applied Micro fixing
>> > their firmware and actually using this patch? (not a question for you;
>> > I'm hoping some Applied engineers would comment).
>> >
>>
>> Sorry that I missed this. This FW is now fixed and tested with Lorenzo
>> patch. Though some minor manual patch will be required with recent
>> kernel. I was going to get some one to ack the patch but got tied up
>> with other matter. As for availability of the FW, it is currently
>> internally only and will be available sometime next year for the next
>> FW release. If any one interested in the FW, you can contact me.
>
> I guess that by "some minor manual patch" you meant you had to rebase
> the patch on top of mainline, I can post an updated version for you to
> test.

Yes... It don't apply cleanly with newer kernel.

>
> Mind giving a tested-by if FW has been updated to comply with the specs
> and tested with my patch applied ?

Yes... Let me know when an newer version is available.

-Loc