[PATCH 0/4 v2] doorbell patches for POWER9

[Nicholas Piggin]

Since last:
- Ported up to powerpc next (thanks mpe)
- Dropped darn workaround from DD1 for now.
- Dropped the guest doorbell hack. It's not an immediate problem and
  will be tackled in other ways.

Nicholas Piggin (4):
  powerpc: change the doorbell IPI calling convention
  powerpc: Introduce msgsnd/doorbell barrier primitives
  powerpc/64s: avoid branch for ppc_msgsnd
  powerpc/powernv: POWER9 support for msgsnd/doorbell IPI

 arch/powerpc/include/asm/dbell.h          | 40 +++++++++++++++------
 arch/powerpc/include/asm/feature-fixups.h | 20 +++++++++++
 arch/powerpc/include/asm/ppc-opcode.h     |  2 ++
 arch/powerpc/include/asm/ppc_asm.h        |  8 +++++
 arch/powerpc/include/asm/smp.h            |  4 +--
 arch/powerpc/include/asm/xics.h           |  2 +-
 arch/powerpc/kernel/dbell.c               | 58 +++++++++++++++++++++++++++----
 arch/powerpc/kernel/smp.c                 | 27 +++++++-------
 arch/powerpc/platforms/85xx/smp.c         | 11 ++----
 arch/powerpc/platforms/powermac/smp.c     |  2 +-
 arch/powerpc/platforms/powernv/smp.c      | 47 +++++++++++++++++++++----
 arch/powerpc/platforms/pseries/smp.c      | 27 ++++++--------
 arch/powerpc/sysdev/xics/icp-hv.c         |  2 +-
 arch/powerpc/sysdev/xics/icp-native.c     | 12 +------
 arch/powerpc/sysdev/xics/icp-opal.c       |  2 +-
 arch/powerpc/sysdev/xics/xics-common.c    |  3 --
 arch/powerpc/sysdev/xive/common.c         |  6 ++--
 17 files changed, 186 insertions(+), 87 deletions(-)

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2.11.0