Thread (10 messages) 10 messages, 3 authors, 2015-03-13

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

From: mark.rutland@arm.com (Mark Rutland)
Date: 2015-03-13 10:35:28
Also in: linux-arm-msm, linux-devicetree, lkml

quoted
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. If PSCI is out of the question then a spin-table
shim in your bootloader shouldn't be too hard to implement.
quoted
Which exception level do CPUs enter the kernel? Even without a
virt-capable GIC booting at EL2 is less work for the FW and gives the
kernel a better chance of fixing things up (e.g. CNTVOFF).
I think the enter in EL1.
That's unfortunate, but so long as they are consistent, it's not the end
of the world.

Mark.
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