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(parent: 500d952) | patch
powerpc/powernv: POWER9 support for msgsnd/doorbell IPI
authorNicholas Piggin <npiggin@gmail.com>
Thu, 13 Apr 2017 10:16:24 +0000 (20:16 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 13 Apr 2017 13:34:34 +0000 (23:34 +1000)
commitd04ce5228b0ace2978581b0d5856945b41c8fee4
treebf00c8ab7b82a22703209b0ba1d0fdddb91fa00btree | snapshot
parent500d95249dbef9fc3501415c72c03a2e5a09852fcommit | diff
powerpc/powernv: POWER9 support for msgsnd/doorbell IPI

POWER9 requires msgsync for receiver-side synchronization, and a DD1
workaround restricts IPIs to core-local.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Drop no longer needed asm feature macro changes]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/dbell.h diff | blob | history
arch/powerpc/include/asm/ppc-opcode.h diff | blob | history
arch/powerpc/platforms/powernv/smp.c diff | blob | history
Linux Kernel Source Tree.