Re: [PATCH v3 2/4] arm64: dts: Add Qualcomm MSM8916 SoC and evaluation board dts

From: Catalin Marinas
Date: Fri Mar 13 2015 - 08:07:10 EST

On Fri, Mar 13, 2015 at 10:34:54AM +0000, Mark Rutland wrote:
> > > Which of spin-table/psci are you planning on using for SMP support, and
> > > when would that be likely to appear?
> >
> > We have a qcom specific SMP enablement method for this device. This
> > was one of our first devices so it utilized as much from arm 32-bit as
> > possible.
> Implementation specific enable methods are something we really don't
> want to see for arm64.

I fully agree (and we've been stating this for over two years).

> If PSCI is out of the question then a spin-table shim in your
> bootloader shouldn't be too hard to implement.

And I guess only WFI cpuidle supported in Linux.

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