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Commit 56855a99 authored by Jeremy Linton's avatar Jeremy Linton Committed by Will Deacon
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ACPI/PPTT: Add function to return ACPI 6.3 Identical tokens



ACPI 6.3 adds a flag to indicate that child nodes are all
identical cores. This is useful to authoritatively determine
if a set of (possibly offline) cores are identical or not.

Since the flag doesn't give us a unique id we can generate
one and use it to create bitmaps of sibling nodes, or simply
in a loop to determine if a subset of cores are identical.

Acked-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: default avatarHanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Signed-off-by: default avatarJeremy Linton <jeremy.linton@arm.com>
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent ed2b664f
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