Merge tag 'loongarch-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - preliminary ClangBuiltLinux enablement

 - add support to clone a time namespace

 - add vector extensions support

 - add SMT (Simultaneous Multi-Threading) support

 - support dbar with different hints

 - introduce hardware page table walker

 - add jump-label implementation

 - add rethook and uprobes support

 - some bug fixes and other small changes

* tag 'loongarch-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson: (28 commits)
  LoongArch: Remove five DIE_* definitions in kdebug.h
  LoongArch: Add uprobes support
  LoongArch: Use larch_insn_gen_break() for kprobes
  LoongArch: Add larch_insn_gen_break() to generate break insns
  LoongArch: Check for AMO instructions in insns_not_supported()
  LoongArch: Move three functions from kprobes.c to inst.c
  LoongArch: Replace kretprobe with rethook
  LoongArch: Add jump-label implementation
  LoongArch: Select HAVE_DEBUG_KMEMLEAK to support kmemleak
  LoongArch: Export some arch-specific pm interfaces
  LoongArch: Introduce hardware page table walker
  LoongArch: Support dbar with different hints
  LoongArch: Add SMT (Simultaneous Multi-Threading) support
  LoongArch: Add vector extensions support
  LoongArch: Add support to clone a time namespace
  Makefile: Add loongarch target flag for Clang compilation
  LoongArch: Mark Clang LTO as working
  LoongArch: Include KBUILD_CPPFLAGS in CHECKFLAGS invocation
  LoongArch: vDSO: Use CLANG_FLAGS instead of filtering out '--target='
  LoongArch: Tweak CFLAGS for Clang compatibility
  ...

1 files changed, 22 insertions, 24 deletions

diff --git a/arch/loongarch/include/asm/tlb.h b/arch/loongarch/include/asm/tlb.h
index f5e4deb97402..da7a3b5b9374 100644
--- a/arch/loongarch/include/asm/tlb.h
+++ b/arch/loongarch/include/asm/tlb.h
@@ -88,52 +88,47 @@ enum invtlb_ops {
 	INVTLB_GID_ADDR = 0x16,
 };
 
-/*
- * invtlb op info addr
- * (0x1 << 26) | (0x24 << 20) | (0x13 << 15) |
- * (addr << 10) | (info << 5) | op
- */
-static inline void invtlb(u32 op, u32 info, u64 addr)
+static __always_inline void invtlb(u32 op, u32 info, u64 addr)
 {
 	__asm__ __volatile__(
-		"parse_r addr,%0\n\t"
-		"parse_r info,%1\n\t"
-		".word ((0x6498000) | (addr << 10) | (info << 5) | %2)\n\t"
-		:
-		: "r"(addr), "r"(info), "i"(op)
+		"invtlb %0, %1, %2\n\t"
 		:
+		: "i"(op), "r"(info), "r"(addr)
+		: "memory"
 		);
 }
 
-static inline void invtlb_addr(u32 op, u32 info, u64 addr)
+static __always_inline void invtlb_addr(u32 op, u32 info, u64 addr)
 {
+	BUILD_BUG_ON(!__builtin_constant_p(info) || info != 0);
 	__asm__ __volatile__(
-		"parse_r addr,%0\n\t"
-		".word ((0x6498000) | (addr << 10) | (0 << 5) | %1)\n\t"
-		:
-		: "r"(addr), "i"(op)
+		"invtlb %0, $zero, %1\n\t"
 		:
+		: "i"(op), "r"(addr)
+		: "memory"
 		);
 }
 
-static inline void invtlb_info(u32 op, u32 info, u64 addr)
+static __always_inline void invtlb_info(u32 op, u32 info, u64 addr)
 {
+	BUILD_BUG_ON(!__builtin_constant_p(addr) || addr != 0);
 	__asm__ __volatile__(
-		"parse_r info,%0\n\t"
-		".word ((0x6498000) | (0 << 10) | (info << 5) | %1)\n\t"
-		:
-		: "r"(info), "i"(op)
+		"invtlb %0, %1, $zero\n\t"
 		:
+		: "i"(op), "r"(info)
+		: "memory"
 		);
 }
 
-static inline void invtlb_all(u32 op, u32 info, u64 addr)
+static __always_inline void invtlb_all(u32 op, u32 info, u64 addr)
 {
+	BUILD_BUG_ON(!__builtin_constant_p(info) || info != 0);
+	BUILD_BUG_ON(!__builtin_constant_p(addr) || addr != 0);
 	__asm__ __volatile__(
-		".word ((0x6498000) | (0 << 10) | (0 << 5) | %0)\n\t"
+		"invtlb %0, $zero, $zero\n\t"
 		:
 		: "i"(op)
-		:
+		: "memory"
 		);
 }
 
@@ -163,6 +158,9 @@ extern void handle_tlb_store(void);
 extern void handle_tlb_modify(void);
 extern void handle_tlb_refill(void);
 extern void handle_tlb_protect(void);
+extern void handle_tlb_load_ptw(void);
+extern void handle_tlb_store_ptw(void);
+extern void handle_tlb_modify_ptw(void);
 
 extern void dump_tlb_all(void);
 extern void dump_tlb_regs(void);