[GIT PULL] LoongArch changes for v7.0

[Huacai Chen]

The following changes since commit 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b:

  Linux 6.19 (2026-02-08 13:03:27 -0800)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git tags/loongarch-7.0

for you to fetch changes up to 92860256402cce9fa6268763365f5333a56c1428:

  LoongArch: dts: loongson-2k1000: Add nand controller support (2026-02-10 19:31:33 +0800)

----------------------------------------------------------------
LoongArch changes for v7.0

1, Select HAVE_CMPXCHG_{LOCAL,DOUBLE};
2, Add 128-bit atomic cmpxchg support;
3, Add HOTPLUG_SMT implementation;
4, Wire up memfd_secret system call;
5, Fix boot errors and unwind errors for KASAN;
6, Use BPF prog pack allocator and add BPF arena support;
7, Update dts files to add nand controllers;
8, Some bug fixes and other small changes.

----------------------------------------------------------------
Binbin Zhou (2):
      LoongArch: dts: loongson-2k0500: Add nand controller support
      LoongArch: dts: loongson-2k1000: Add nand controller support

Carlos López (1):
      LoongArch: Use IS_ERR_PCPU() macro for KGDB

George Guo (3):
      LoongArch: Add detection for SC.Q support
      LoongArch: Add 128-bit atomic cmpxchg support
      LoongArch: Replace seq_printf() with seq_puts() for simple strings

Hengqi Chen (3):
      LoongArch: BPF: Use BPF prog pack allocator
      LoongArch: BPF: Implement PROBE_MEM32 pseudo instructions
      LoongArch: BPF: Implement bpf_addr_space_cast instruction

Huacai Chen (3):
      LoongArch: Select HAVE_CMPXCHG_LOCAL in Kconfig
      LoongArch: Add HOTPLUG_SMT implementation
      LoongArch: Prefer top-down allocation after arch_mem_init()

John Garry (1):
      LoongArch: Make cpumask_of_node() robust against NUMA_NO_NODE

Lain "Fearyncess" Yang (1):
      LoongArch: Wire up memfd_secret system call

Tiezhu Yang (6):
      LoongArch: Use %px to print unmodified unwinding address
      LoongArch: Handle percpu handler address for ORC unwinder
      LoongArch: Guard percpu handler under !CONFIG_PREEMPT_RT
      LoongArch: Remove some extern variables in source files
      LoongArch: Disable instrumentation for setup_ptwalker()
      LoongArch: Rework KASAN initialization for PTW-enabled systems

 Documentation/admin-guide/kernel-parameters.txt |   2 +-
 arch/loongarch/Kconfig                          |   4 +
 arch/loongarch/boot/dts/loongson-2k0500-ref.dts |  19 +++
 arch/loongarch/boot/dts/loongson-2k0500.dtsi    |  12 +-
 arch/loongarch/boot/dts/loongson-2k1000-ref.dts |  22 +++
 arch/loongarch/boot/dts/loongson-2k1000.dtsi    |  13 +-
 arch/loongarch/include/asm/cmpxchg.h            |  54 +++++++
 arch/loongarch/include/asm/cpu-features.h       |   1 +
 arch/loongarch/include/asm/cpu.h                |  62 +++----
 arch/loongarch/include/asm/setup.h              |   3 +
 arch/loongarch/include/asm/topology.h           |   2 +-
 arch/loongarch/include/asm/unistd.h             |   1 +
 arch/loongarch/include/uapi/asm/hwcap.h         |   1 +
 arch/loongarch/kernel/Makefile.syscalls         |   5 +-
 arch/loongarch/kernel/cpu-probe.c               |   4 +
 arch/loongarch/kernel/kgdb.c                    |   2 +-
 arch/loongarch/kernel/proc.c                    |  63 +++++---
 arch/loongarch/kernel/setup.c                   |   1 +
 arch/loongarch/kernel/smp.c                     |  13 ++
 arch/loongarch/kernel/unwind_orc.c              |  18 ++-
 arch/loongarch/kernel/unwind_prologue.c         |   6 +-
 arch/loongarch/mm/kasan_init.c                  |  78 ++++-----
 arch/loongarch/mm/tlb.c                         |   3 +-
 arch/loongarch/net/bpf_jit.c                    | 206 +++++++++++++++++++-----
 arch/loongarch/net/bpf_jit.h                    |   4 +-
 tools/testing/selftests/mm/Makefile             |   2 +-
 26 files changed, 449 insertions(+), 152 deletions(-)