[GIT PULL] RISC-V Paches for the 6.13 Merge Window, Part 1

[Palmer Dabbelt]

The following changes since commit 81983758430957d9a5cb3333fe324fd70cf63e7e:

  Linux 6.12-rc5 (2024-10-27 12:52:02 -1000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-6.13-mw1

for you to fetch changes up to 8d4f1e05ff821a5d59116ab8c3a30fcae81d8597:

  RISC-V: Remove unnecessary include from compat.h (2024-11-26 11:48:53 -0800)

----------------------------------------------------------------
RISC-V Paches for the 6.13 Merge Window, Part 1

* Support for pointer masking in userspace,
* Support for probing vector misaligned access performance.
* Support for qspinlock on systems with Zacas and Zabha.

----------------------------------------------------------------
There's a handful of fixes working through other trees (the wait/wound lockdep
failures and a tools build fix), but aside from those everything is clean on my
end.  I don't plan on having a part 2, unless there's something else in flight
that blows up.

----------------------------------------------------------------
Alexandre Ghiti (12):
      riscv: Check that vdso does not contain any dynamic relocations
      riscv: Move cpufeature.h macros into their own header
      riscv: Do not fail to build on byte/halfword operations with Zawrs
      riscv: Implement cmpxchg32/64() using Zacas
      dt-bindings: riscv: Add Zabha ISA extension description
      riscv: Implement cmpxchg8/16() using Zabha
      riscv: Improve zacas fully-ordered cmpxchg()
      riscv: Implement arch_cmpxchg128() using Zacas
      riscv: Implement xchg8/16() using Zabha
      riscv: Add ISA extension parsing for Ziccrse
      dt-bindings: riscv: Add Ziccrse ISA extension description
      riscv: Add qspinlock support

Charlie Jenkins (1):
      riscv: Fix default misaligned access trap

Drew Fustini (1):
      riscv: defconfig: enable gpio support for TH1520

Guo Ren (2):
      asm-generic: ticket-lock: Reuse arch_spinlock_t of qspinlock
      asm-generic: ticket-lock: Add separate ticket-lock.h

Jesse Taube (6):
      RISC-V: Check scalar unaligned access on all CPUs
      RISC-V: Scalar unaligned access emulated on hotplug CPUs
      RISC-V: Replace RISCV_MISALIGNED with RISCV_SCALAR_MISALIGNED
      RISC-V: Detect unaligned vector accesses supported
      RISC-V: Report vector unaligned access speed hwprobe
      RISC-V: hwprobe: Document unaligned vector perf key

Nick Hu (2):
      cpuidle: riscv-sbi: Move sbi_cpuidle_init to arch_initcall
      cpuidle: riscv-sbi: Add cpuidle_disabled() check

Palmer Dabbelt (7):
      Merge patch series "riscv: Per-thread envcfg CSR support"
      Merge patch series "cpuidle: riscv-sbi: Allow cpuidle pd used by other devices"
      Merge patch series "RISC-V: Detect and report speed of unaligned vector accesses"
      Merge patch series "Prevent dynamic relocations in vDSO"
      Merge patch series "riscv: Userspace pointer masking and tagged address ABI"
      Merge patch series "Zacas/Zabha support and qspinlocks"
      RISC-V: Remove unnecessary include from compat.h

Samuel Holland (13):
      riscv: Enable cbo.zero only when all harts support Zicboz
      riscv: Add support for per-thread envcfg CSR values
      riscv: Call riscv_user_isa_enable() only on the boot hart
      dt-bindings: riscv: Add pointer masking ISA extensions
      riscv: Add ISA extension parsing for pointer masking
      riscv: Add CSR definitions for pointer masking
      riscv: Add support for userspace pointer masking
      riscv: Add support for the tagged address ABI
      riscv: Allow ptrace control of the tagged address ABI
      riscv: selftests: Add a pointer masking test
      riscv: hwprobe: Export the Supm ISA extension
      RISC-V: KVM: Allow Smnpm and Ssnpm extensions for guests
      KVM: riscv: selftests: Add Smnpm and Ssnpm to get-reg-list test

 Documentation/arch/riscv/hwprobe.rst               |  19 ++
 Documentation/arch/riscv/uabi.rst                  |  16 +
 .../devicetree/bindings/riscv/extensions.yaml      |  30 ++
 .../locking/queued-spinlocks/arch-support.txt      |   2 +-
 arch/riscv/Kconfig                                 | 138 ++++++++-
 arch/riscv/Makefile                                |   6 +
 arch/riscv/configs/defconfig                       |   1 +
 arch/riscv/include/asm/Kbuild                      |   4 +-
 arch/riscv/include/asm/cmpxchg.h                   | 286 +++++++++++++-----
 arch/riscv/include/asm/compat.h                    |   1 -
 arch/riscv/include/asm/cpufeature-macros.h         |  66 ++++
 arch/riscv/include/asm/cpufeature.h                |  73 +----
 arch/riscv/include/asm/csr.h                       |  16 +
 arch/riscv/include/asm/entry-common.h              |   1 +
 arch/riscv/include/asm/hwcap.h                     |   7 +
 arch/riscv/include/asm/hwprobe.h                   |   2 +-
 arch/riscv/include/asm/mmu.h                       |   7 +
 arch/riscv/include/asm/mmu_context.h               |  13 +
 arch/riscv/include/asm/processor.h                 |   9 +
 arch/riscv/include/asm/spinlock.h                  |  47 +++
 arch/riscv/include/asm/switch_to.h                 |  19 ++
 arch/riscv/include/asm/uaccess.h                   |  43 ++-
 arch/riscv/include/asm/vector.h                    |   2 +
 arch/riscv/include/uapi/asm/hwprobe.h              |   6 +
 arch/riscv/include/uapi/asm/kvm.h                  |   2 +
 arch/riscv/kernel/Makefile                         |   3 +-
 arch/riscv/kernel/copy-unaligned.h                 |   5 +
 arch/riscv/kernel/cpufeature.c                     |  16 +-
 arch/riscv/kernel/fpu.S                            |   4 +-
 arch/riscv/kernel/process.c                        | 154 ++++++++++
 arch/riscv/kernel/ptrace.c                         |  42 +++
 arch/riscv/kernel/setup.c                          |  37 +++
 arch/riscv/kernel/smpboot.c                        |   2 -
 arch/riscv/kernel/suspend.c                        |   4 +-
 arch/riscv/kernel/sys_hwprobe.c                    |  44 +++
 arch/riscv/kernel/traps_misaligned.c               | 139 ++++++++-
 arch/riscv/kernel/unaligned_access_speed.c         | 156 +++++++++-
 arch/riscv/kernel/vdso/Makefile                    |  10 +-
 arch/riscv/kernel/vec-copy-unaligned.S             |  58 ++++
 arch/riscv/kernel/vector.c                         |   2 +-
 arch/riscv/kvm/vcpu_onereg.c                       |   4 +
 drivers/cpuidle/cpuidle-riscv-sbi.c                |  11 +-
 include/asm-generic/qspinlock.h                    |   2 +
 include/asm-generic/spinlock.h                     |  87 +-----
 include/asm-generic/spinlock_types.h               |  12 +-
 include/asm-generic/ticket_spinlock.h              | 105 +++++++
 include/uapi/linux/elf.h                           |   1 +
 include/uapi/linux/prctl.h                         |   5 +-
 tools/testing/selftests/kvm/riscv/get-reg-list.c   |   8 +
 tools/testing/selftests/riscv/Makefile             |   2 +-
 tools/testing/selftests/riscv/abi/.gitignore       |   1 +
 tools/testing/selftests/riscv/abi/Makefile         |  10 +
 .../testing/selftests/riscv/abi/pointer_masking.c  | 332 +++++++++++++++++++++
 53 files changed, 1790 insertions(+), 282 deletions(-)
 create mode 100644 arch/riscv/include/asm/cpufeature-macros.h
 create mode 100644 arch/riscv/include/asm/spinlock.h
 create mode 100644 arch/riscv/kernel/vec-copy-unaligned.S
 create mode 100644 include/asm-generic/ticket_spinlock.h
 create mode 100644 tools/testing/selftests/riscv/abi/.gitignore
 create mode 100644 tools/testing/selftests/riscv/abi/Makefile
 create mode 100644 tools/testing/selftests/riscv/abi/pointer_masking.c