[GIT PULL] parisc architecture fixes for v6.4-rc1

[Helge Deller <deller@gmx.de>]

Hi Linus,

please pull the parisc architecture updates and fixes for 6.4-rc1:

Two important fixes in here:
* The argument pointer register was wrong when calling 64-bit firmware
  functions, which may cause random memory corruption or crashes.
* Ensure page alignment in cache flush functions, otherwise not all
  memory might get flushed.

The other patches are cleanups (mmap implementation, panic path) and
usual smaller updates.

All patches, with the execption of the argument pointer patch, have been
in stable since weeks. I rebased to fix a small conflict in the
docs to make pulling easier for you.

Thanks,
Helge

---
The following changes since commit 348551ddaf311c76b01cdcbaf61b6fef06a49144:

  Merge tag 'pinctrl-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl (2023-05-02 15:40:41 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git tags/parisc-for-6.4-1

for you to fetch changes up to 6e3220ba3323a2c24be834aebf5d6e9f89d0993f:

  parisc: Fix argument pointer in real64_call_asm() (2023-05-03 17:43:26 +0200)

----------------------------------------------------------------
parisc architecture updates and fixes for kernel v6.4-rc1:

- Calculate correct argument pointer in real64_call_asm()
- Cleanup mmap implementation regarding color alignment (John David Anglin)
- Spinlock fixes in panic path (Guilherme G. Piccoli)
- build doc update for parisc64 (Randy Dunlap)
- Ensure page alignment in flush functions

----------------------------------------------------------------
Guilherme G. Piccoli (1):
      parisc: Replace regular spinlock with spin_trylock on panic path

Helge Deller (4):
      parisc: Limit amount of kgdb breakpoints on parisc
      parisc: Ensure page alignment in flush functions
      parisc: Drop HP-UX constants and structs from grfioctl.h
      parisc: Fix argument pointer in real64_call_asm()

John David Anglin (1):
      parisc: Cleanup mmap implementation regarding color alignment

Randy Dunlap (1):
      parisc: update kbuild doc. aliases for parisc64

 Documentation/kbuild/kbuild.rst    |   1 +
 arch/parisc/include/asm/grfioctl.h |  38 ---------
 arch/parisc/include/asm/kgdb.h     |   2 +
 arch/parisc/include/asm/pdc.h      |   1 +
 arch/parisc/kernel/firmware.c      |  27 +++++-
 arch/parisc/kernel/pacache.S       |   2 +
 arch/parisc/kernel/real2.S         |   5 +-
 arch/parisc/kernel/sys_parisc.c    | 166 ++++++++++++++-----------------------
 drivers/parisc/power.c             |  16 ++--
 9 files changed, 104 insertions(+), 154 deletions(-)