[RFC][PATCH 6.12.y-cip 00/12] Backport PREEMPT-RT support for ARM 32-bit

[Jan Kiszka <jan.kiszka@siemens.com>]

A first attempt to backport the recently merged ARM 32-bit support of
PREEMPT-RT from 7.1 to 6.12-cip. Only lightly tested so far, first of
all looking for feedback regarding completeness.

This may also be valuable for 6.12-rt as this series should be able to
replace all patches tagged with {ARM:,arm:} in v6.12.79-rt17 - adding
Daniel.

Jan

Russell King (Oracle) (10):
  ARM: group is_permission_fault() with is_translation_fault()
  ARM: allow __do_kernel_fault() to report execution of memory faults
  ARM: fix hash_name() fault
  ARM: fix branch predictor hardening
  ARM: ensure interrupts are enabled in __do_user_fault()
  ARM: move vmalloc() lazy-page table population
  ARM: move is_permission_fault() and is_translation_fault() to fault.h
  ARM: use BIT() and GENMASK() for fault status register fields
  ARM: move FSR fault status definitions before fsr_fs()
  ARM: provide individual is_translation_fault() and
    is_permission_fault()

Sebastian Andrzej Siewior (1):
  ARM: 9463/1: Allow to enable RT

Thomas Gleixner (1):
  ARM: 9459/1: Disable jump-label on PREEMPT_RT

 arch/arm/Kconfig        |   3 +-
 arch/arm/mm/alignment.c |   6 +-
 arch/arm/mm/fault.c     | 222 +++++++++++++++++++++++-----------------
 arch/arm/mm/fault.h     |  42 ++++++--
 4 files changed, 173 insertions(+), 100 deletions(-)

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2.47.3