powerpc/book3s64: Hash / SLB fixes & improvements

Hello All,

While working on slb multi-hit issue we identified few more fixes and improvements required for Hash / SLB code. This patch series is a result of that.

RFC -> v2:
==========
1. Addressed review comments from Christophe.
2. Added PATCH [5-8] as improvements patches.
3. Dropped the last patch which adds slb faults to vmstat counter. I'd like to do some more testing of this internally first, and if it proves to be really useful, I will send that patch separately later.

[RFC]: https://lore.kernel.org/linuxppc-dev/[email protected]/

Donet Tom (1):
powerpc/64s/slb: Fix SLB multihit issue during SLB preload

Ritesh Harjani (IBM) (10):
powerpc/64s/hash: Restrict stress_hpt_struct memblock region to within RMA limit powerpc/64s/ptdump: Fix kernel_hash_pagetable dump for ISA v3.00 HPTE format powerpc/64s/hash: Fix phys_addr_t printf format in htab_initialize() powerpc/64s/hash: Improve hash mmu printk messages powerpc/64s/hash: Hash hpt_order should be only available with Hash MMU powerpc/64s/hash: Update directMap page counters for Hash powerpc/64s/pgtable: Enable directMap counters in meminfo for Hash powerpc/ptdump: Dump PXX level info for kernel_page_tables powerpc/64s/slb: Make preload_add return type as void powerpc/64s/slb: Add no_slb_preload early cmdline param

 .../admin-guide/kernel-parameters.txt         |   3 +
 arch/powerpc/include/asm/book3s/64/mmu-hash.h |   1 -
 arch/powerpc/kernel/process.c                 |   5 -
 arch/powerpc/mm/book3s64/hash_utils.c         |  41 +++++--
 arch/powerpc/mm/book3s64/internal.h           |   9 +-
 arch/powerpc/mm/book3s64/mmu_context.c        |   2 -
 arch/powerpc/mm/book3s64/pgtable.c            |  23 ++--
 arch/powerpc/mm/book3s64/slb.c                | 109 +++---------------
 arch/powerpc/mm/ptdump/8xx.c                  |   5 +
 arch/powerpc/mm/ptdump/book3s64.c             |   5 +
 arch/powerpc/mm/ptdump/hashpagetable.c        |   6 +
 arch/powerpc/mm/ptdump/ptdump.c               |   1 +
 arch/powerpc/mm/ptdump/ptdump.h               |   1 +
 arch/powerpc/mm/ptdump/shared.c               |   5 +
 14 files changed, 93 insertions(+), 123 deletions(-)

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2.51.0