powerpc/pseries: Add cpu DLPAR support for drc-info property

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Older firmwares provided information about Dynamic Reconfig
Connectors (DRC) through several device tree properties, namely
ibm,drc-types, ibm,drc-indexes, ibm,drc-names, and
ibm,drc-power-domains. New firmwares have the ability to present this
same information in a much condensed format through a device tree
property called ibm,drc-info.

The existing cpu DLPAR hotplug code only understands the older DRC
property format when validating the drc-index of a cpu during a
hotplug add. This updates those code paths to use the ibm,drc-info
property, when present, instead for validation.

Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1573449697-5448-4-git-send-email-tyreld@linux.ibm.com

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Tyrel Datwyler 2019-11-10 23:21:30 -06:00 • committed by Michael Ellerman

parent 775fa495af

commit b015f6bc95

1 changed files with 112 additions and 15 deletions

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arch/powerpc/platforms/pseries/hotplug-cpu.c

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