[GIT PULL] parisc architecture updates for v5.18-rc1

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The following changes since commit ffb217a13a2eaf6d5bd974fc83036a53ca69f1e2:

  Linux 5.17-rc7 (2022-03-06 14:28:31 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git tags/for-5.18/parisc-1

for you to fetch changes up to 53d862fac4a09b9c56cca0433fa9de5732fd05a1:

  parisc: Fix invalidate/flush vmap routines (2022-03-21 13:30:54 +0100)

----------------------------------------------------------------
parisc architecture updates for kernel v5.18-rc1

- add vDSO support (allows us to use read-only stacks)
- many TLB and cache flush optimizations (by Dave Anglin)
- fix handling of probe non-access faults (by Dave Anglin)
- fix invalidate/flush vmap routines (by Dave Anglin)
- avoid using hardware single-step in kprobes
- enable ARCH_HAS_DEBUG_VM_PGTABLE
- many cleanups in unaligned handlers, e.g. rewrite of existing assembly code
- always use the self-extracting kernel feature
- big refacturing and code reductions regarding space-register usage in get_user() and put_user()
- add fillrect() support to stifb graphics driver

----------------------------------------------------------------
Helge Deller (18):
      parisc: Add vDSO support
      video/fbdev/stifb: Implement the stifb_fillrect() function
      parisc: Always use the self-extracting kernel feature
      parisc: Add defines for various space register
      parisc: Use SR_USER and SR_KERNEL in get_user() and put_user()
      parisc: Use constants to encode the space registers like SR_KERNEL
      parisc: Reduce code size by optimizing get_current() function calls
      parisc/unaligned: Use EFAULT fixup handler in unaligned handlers
      parisc/unaligned: Rewrite inline assembly of emulate_ldh()
      parisc/unaligned: Rewrite inline assembly of emulate_ldw()
      parisc/unaligned: Rewrite 32-bit inline assembly of emulate_ldd()
      parisc/unaligned: Rewrite 32-bit inline assembly of emulate_sth()
      parisc/unaligned: Enhance user-space visible output
      parisc: Avoid calling SMP cache flush functions on cache-less machines
      parisc: Enable ARCH_HAS_DEBUG_VM_PGTABLE
      parisc: Improve CPU socket and core bootup info text
      parisc: Avoid using hardware single-step in kprobes
      parisc: Avoid flushing cache on cache-less machines

John David Anglin (5):
      parisc: Fix non-access data TLB cache flush faults
      parisc: Fix handling off probe non-access faults
      parisc: Simplify fast path for non-access data TLB faults
      parisc: Increase parisc_cache_flush_threshold setting
      parisc: Fix invalidate/flush vmap routines

 arch/parisc/Kconfig                           |  14 +-
 arch/parisc/Makefile                          |  37 +++-
 arch/parisc/include/asm/assembly.h            |   6 +
 arch/parisc/include/asm/cache.h               |  11 +-
 arch/parisc/include/asm/cacheflush.h          |  15 +-
 arch/parisc/include/asm/current.h             |   8 +-
 arch/parisc/include/asm/elf.h                 |  15 ++
 arch/parisc/include/asm/kprobes.h             |   5 +-
 arch/parisc/include/asm/mmu.h                 |   6 +-
 arch/parisc/include/asm/mmu_context.h         |  16 +-
 arch/parisc/include/asm/pgtable.h             |  11 +-
 arch/parisc/include/asm/processor.h           |   2 +-
 arch/parisc/include/asm/rt_sigframe.h         |  10 +-
 arch/parisc/include/asm/special_insns.h       |   4 +-
 arch/parisc/include/asm/tlbflush.h            |   2 +-
 arch/parisc/include/asm/traps.h               |   1 +
 arch/parisc/include/asm/uaccess.h             |  28 +--
 arch/parisc/include/asm/unistd.h              |   4 -
 arch/parisc/include/asm/vdso.h                |  24 +++
 arch/parisc/include/uapi/asm/auxvec.h         |   8 +
 arch/parisc/kernel/Makefile                   |   5 +
 arch/parisc/kernel/alternative.c              |  10 +
 arch/parisc/kernel/asm-offsets.c              |   9 +
 arch/parisc/kernel/cache.c                    | 137 +++++++-------
 arch/parisc/kernel/entry.S                    |  72 +-------
 arch/parisc/kernel/kprobes.c                  |  28 +--
 arch/parisc/kernel/pci-dma.c                  |   4 +-
 arch/parisc/kernel/signal.c                   | 225 +++++++++++-----------
 arch/parisc/kernel/signal32.h                 |  19 +-
 arch/parisc/kernel/topology.c                 |   4 +-
 arch/parisc/kernel/traps.c                    |  12 +-
 arch/parisc/kernel/unaligned.c                | 257 ++++++++++----------------
 arch/parisc/kernel/vdso.c                     | 122 ++++++++++++
 arch/parisc/kernel/vdso32/Makefile            |  53 ++++++
 arch/parisc/kernel/vdso32/gen_vdso_offsets.sh |  15 ++
 arch/parisc/kernel/vdso32/note.S              |  26 +++
 arch/parisc/kernel/vdso32/restart_syscall.S   |  32 ++++
 arch/parisc/kernel/vdso32/sigtramp.S          | 195 +++++++++++++++++++
 arch/parisc/kernel/vdso32/vdso32.lds.S        | 111 +++++++++++
 arch/parisc/kernel/vdso32/vdso32_wrapper.S    |  14 ++
 arch/parisc/kernel/vdso64/Makefile            |  48 +++++
 arch/parisc/kernel/vdso64/gen_vdso_offsets.sh |  15 ++
 arch/parisc/kernel/vdso64/note.S              |   2 +
 arch/parisc/kernel/vdso64/restart_syscall.S   |   3 +
 arch/parisc/kernel/vdso64/sigtramp.S          | 166 +++++++++++++++++
 arch/parisc/kernel/vdso64/vdso64.lds.S        | 109 +++++++++++
 arch/parisc/kernel/vdso64/vdso64_wrapper.S    |  14 ++
 arch/parisc/lib/memcpy.c                      |  16 +-
 arch/parisc/mm/fault.c                        |  89 +++++++++
 drivers/video/fbdev/stifb.c                   |  45 ++++-
 50 files changed, 1534 insertions(+), 550 deletions(-)
 create mode 100644 arch/parisc/include/asm/vdso.h
 create mode 100644 arch/parisc/include/uapi/asm/auxvec.h
 create mode 100644 arch/parisc/kernel/vdso.c
 create mode 100644 arch/parisc/kernel/vdso32/Makefile
 create mode 100755 arch/parisc/kernel/vdso32/gen_vdso_offsets.sh
 create mode 100644 arch/parisc/kernel/vdso32/note.S
 create mode 100644 arch/parisc/kernel/vdso32/restart_syscall.S
 create mode 100644 arch/parisc/kernel/vdso32/sigtramp.S
 create mode 100644 arch/parisc/kernel/vdso32/vdso32.lds.S
 create mode 100644 arch/parisc/kernel/vdso32/vdso32_wrapper.S
 create mode 100644 arch/parisc/kernel/vdso64/Makefile
 create mode 100755 arch/parisc/kernel/vdso64/gen_vdso_offsets.sh
 create mode 100644 arch/parisc/kernel/vdso64/note.S
 create mode 100644 arch/parisc/kernel/vdso64/restart_syscall.S
 create mode 100644 arch/parisc/kernel/vdso64/sigtramp.S
 create mode 100644 arch/parisc/kernel/vdso64/vdso64.lds.S
 create mode 100644 arch/parisc/kernel/vdso64/vdso64_wrapper.S



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