powerpc/xive: Add a kernel parameter for StoreEOI
authorCédric Le Goater <clg@kaod.org>
Fri, 5 Nov 2021 10:26:34 +0000 (11:26 +0100)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 25 Nov 2021 00:25:30 +0000 (11:25 +1100)
commitc21ee04f11ae068aa132cce56d09f618d4a66259
tree7076bdeccb6468b807ad56702e0dccf07c45bd5e
parentd7bc1e376cb786e9e8483455584d89cad4b5808f
powerpc/xive: Add a kernel parameter for StoreEOI

StoreEOI is activated by default on platforms supporting the feature
(POWER10) and will be used as soon as firmware advertises its
availability. The kernel parameter provides a way to deactivate its
use. It can be still be reactivated through debugfs.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211105102636.1016378-10-clg@kaod.org
Documentation/admin-guide/kernel-parameters.txt
arch/powerpc/sysdev/xive/common.c