Merge tag 'loongarch-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Add LoongArch-specific ACPI initialization

 - Set NX compat flag in PE/COFF efi header

 - Use pa_to_nid()/nid_to_addrbase() rather than hard-code

 - Detect and expose LAMCAS/DIV32 feature existence

 - Fix and improve perf hardware breakpoints

 - Fix and improve BPF JIT (trampoline and 32-bit operations)

 - Add arch_crash_save_vmcoreinfo() support

 - Some bug fixes and other small changes

* tag 'loongarch-7.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (24 commits)
  soc: loongson: loongson2_guts: Use of_root instead of own reference
  soc: loongson: loongson2_pm: Fix build warnings for 32BIT
  LoongArch: dts: loongson-2k0500: Drop unsupported bus_id in DWMAC
  LoongArch: BPF: Optimize 32-bit operations using native instructions
  LoongArch: BPF: Clean up and decouple is32 parameter from move_imm()
  LoongArch: BPF: Fix stack arguments for indirect trampolines
  LoongArch: Add arch_crash_save_vmcoreinfo() support
  LoongArch: Fix one-shot limitation for perf hardware breakpoints
  LoongArch: Fix perf hardware breakpoint failure via installation
  LoongArch: Only send SIGTRAP signal if necessary in do_watch()
  LoongArch: Fix architectural naming typo for CSR_FWPS_SKIP
  LoongArch: Fix bitmask corruption in update_bp_registers()
  LoongArch: Remove redundant call in update_bp_registers()
  LoongArch: Remove arch-specific __smp_mb__{before,after}_atomic()
  LoongArch: Detect and expose DIV32 feature existence
  LoongArch: Detect and expose LAMCAS feature existence
  LoongArch: Use pa_to_nid()/nid_to_addrbase() rather than hard-code
  LoongArch: Don't init & online empty nodes
  LoongArch: Call cpu_final_simd() with pure_initcall()
  LoongArch: Use assign_bit() API where applicable
  ...

2 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index d7f1f3d05390..9d3f039ebd94 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -1637,6 +1637,7 @@ static inline int acpi_pptt_get_cpumask_from_cache_id(u32 cache_id,
 #endif
 
 void acpi_arch_init(void);
+void acpi_arch_late_init(void);
 
 #ifdef CONFIG_ACPI_PCC
 void acpi_init_pcc(void);
diff --git a/include/linux/acpi_iovt.h b/include/linux/acpi_iovt.h
new file mode 100644
index 000000000000..663b4c679bc5
--- /dev/null
+++ b/include/linux/acpi_iovt.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __ACPI_IOVT_H__
+#define __ACPI_IOVT_H__
+
+#ifdef CONFIG_ACPI_IOVT
+int iovt_iommu_configure_id(struct device *dev, const u32 *id_in);
+#else
+static inline int iovt_iommu_configure_id(struct device *dev, const u32 *id_in)
+{ return -ENODEV; }
+#endif
+
+#endif /* __ACPI_IOVT_H__ */