[RFC PATCH 0/6] powerpc: Make hash MMU code build configurable

[Nicholas Piggin]

Now that there's a platform that can make good use of it, here's
a series that can prevent the hash MMU code being built for 64s
platforms that don't need it.

Thanks,
Nick

Nicholas Piggin (6):
  powerpc: Remove unused FW_FEATURE_NATIVE references
  powerpc: Rename PPC_NATIVE to PPC_HASH_MMU_NATIVE
  powerpc/pseries: Stop selecting PPC_HASH_MMU_NATIVE
  powerpc/64s: Make hash MMU code build configurable
  powerpc/microwatt: select POWER9_CPU
  powerpc/microwatt: Stop building the hash MMU code

 arch/powerpc/Kconfig                          |   1 +
 arch/powerpc/configs/microwatt_defconfig      |   2 +-
 arch/powerpc/include/asm/book3s/64/mmu.h      |  22 +++-
 .../include/asm/book3s/64/tlbflush-hash.h     |   7 ++
 arch/powerpc/include/asm/book3s/64/tlbflush.h |   4 -
 arch/powerpc/include/asm/book3s/pgtable.h     |   4 +
 arch/powerpc/include/asm/firmware.h           |   8 --
 arch/powerpc/include/asm/mmu.h                |  38 +++++-
 arch/powerpc/include/asm/mmu_context.h        |   2 +
 arch/powerpc/include/asm/paca.h               |   8 ++
 arch/powerpc/kernel/asm-offsets.c             |   2 +
 arch/powerpc/kernel/dt_cpu_ftrs.c             |  10 +-
 arch/powerpc/kernel/entry_64.S                |   4 +-
 arch/powerpc/kernel/exceptions-64s.S          |  16 +++
 arch/powerpc/kernel/mce.c                     |   2 +-
 arch/powerpc/kernel/mce_power.c               |  10 +-
 arch/powerpc/kernel/paca.c                    |  18 ++-
 arch/powerpc/kernel/process.c                 |  13 +-
 arch/powerpc/kernel/prom.c                    |   2 +
 arch/powerpc/kernel/setup_64.c                |   4 +
 arch/powerpc/kexec/core_64.c                  |   4 +-
 arch/powerpc/kexec/ranges.c                   |   4 +
 arch/powerpc/kvm/Kconfig                      |   1 +
 arch/powerpc/mm/book3s64/Makefile             |  19 +--
 arch/powerpc/mm/book3s64/hash_native.c        | 104 ----------------
 arch/powerpc/mm/book3s64/hash_pgtable.c       |   1 -
 arch/powerpc/mm/book3s64/hash_utils.c         | 116 ++++++++++++++++--
 .../{hash_hugetlbpage.c => hugetlbpage.c}     |   6 +
 arch/powerpc/mm/book3s64/mmu_context.c        |  16 +++
 arch/powerpc/mm/book3s64/pgtable.c            |  22 +++-
 arch/powerpc/mm/book3s64/radix_pgtable.c      |   4 +
 arch/powerpc/mm/book3s64/slb.c                |  16 ---
 arch/powerpc/mm/copro_fault.c                 |   2 +
 arch/powerpc/mm/fault.c                       |  17 +++
 arch/powerpc/mm/pgtable.c                     |  10 +-
 arch/powerpc/platforms/52xx/Kconfig           |   2 +-
 arch/powerpc/platforms/Kconfig                |   4 +-
 arch/powerpc/platforms/Kconfig.cputype        |  21 +++-
 arch/powerpc/platforms/cell/Kconfig           |   3 +-
 arch/powerpc/platforms/chrp/Kconfig           |   2 +-
 arch/powerpc/platforms/embedded6xx/Kconfig    |   2 +-
 arch/powerpc/platforms/maple/Kconfig          |   3 +-
 arch/powerpc/platforms/microwatt/Kconfig      |   2 +-
 arch/powerpc/platforms/pasemi/Kconfig         |   3 +-
 arch/powerpc/platforms/powermac/Kconfig       |   3 +-
 arch/powerpc/platforms/powernv/Kconfig        |   2 +-
 arch/powerpc/platforms/powernv/idle.c         |   2 +
 arch/powerpc/platforms/powernv/setup.c        |   2 +
 arch/powerpc/platforms/pseries/Kconfig        |   1 -
 arch/powerpc/platforms/pseries/lpar.c         |  68 +++++-----
 arch/powerpc/platforms/pseries/lparcfg.c      |   2 +-
 arch/powerpc/platforms/pseries/mobility.c     |   6 +
 arch/powerpc/platforms/pseries/ras.c          |   4 +
 arch/powerpc/platforms/pseries/reconfig.c     |   2 +
 arch/powerpc/platforms/pseries/setup.c        |   6 +-
 arch/powerpc/xmon/xmon.c                      |   8 +-
 56 files changed, 427 insertions(+), 240 deletions(-)
 rename arch/powerpc/mm/book3s64/{hash_hugetlbpage.c => hugetlbpage.c} (95%)

-- 
2.23.0