diff -Nur a/src/linux-context.h b/src/linux-context.h
--- a/src/linux-context.h	2023-02-13 17:13:46.695350258 +0800
+++ b/src/linux-context.h	2023-02-13 17:12:54.094497176 +0800
@@ -33,6 +33,8 @@
 #define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.arm_pc
 #elif defined(__aarch64__)
 #define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.pc
+#elif defined(__loongarch__)
+#define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.__pc
 #elif defined(__mips__)
 #define OVERFLOW_ADDRESS(ctx) ctx.ucontext->uc_mcontext.pc
 #elif defined(__hppa__)
diff -Nur a/src/linux-lock.h b/src/linux-lock.h
--- a/src/linux-lock.h	2019-03-05 03:56:23.000000000 +0800
+++ b/src/linux-lock.h	2023-02-13 17:12:54.094497176 +0800
@@ -223,6 +223,37 @@
 }
 #define  _papi_hwd_lock(lck) __raw_spin_lock(&_papi_hwd_lock_data[lck]);
 #define  _papi_hwd_unlock(lck) __raw_spin_unlock(&_papi_hwd_lock_data[lck])
+#elif defined(__loongarch__)
+static inline void __raw_spin_lock(volatile unsigned int *lock)
+{
+  unsigned int tmp;
+  __asm__ __volatile__(
+  "1:     ll.w    %1, %2                                  \n"
+  "       bnez    %1, 1b                                  \n"
+  "        li.w   %1,  1                                  \n"
+  "       sc.w    %1, %0                                  \n"
+  "       beqz    %1, 1b                                  \n"
+  "        nop                                            \n"
+  : "=m" (*lock), "=&r" (tmp)
+  : "m" (*lock)
+  : "memory");
+}
+
+static inline void __raw_spin_unlock(volatile unsigned int *lock)
+{
+ unsigned int tmp;
+ __asm__ __volatile__(
+ "       nop      \n"
+ " li.w %1,  0     \n"
+ "       st.w    %1, %0                                  \n"
+ : "=m" (*lock), "=&r" (tmp)
+ : "m" (*lock)
+ : "memory");
+}
+#define _papi_hwd_lock(lck)   { rmb(); __raw_spin_lock(&_papi_hwd_lock_data[lck]); rmb(); }
+#define _papi_hwd_unlock(lck) { rmb(); __raw_spin_unlock(&_papi_hwd_lock_data[lck]); rmb(); }
+
+
 #else
 
 #error "_papi_hwd_lock/unlock undefined!"
diff -Nur a/src/linux-timer.c b/src/linux-timer.c
--- a/src/linux-timer.c	2023-02-13 17:13:46.695350258 +0800
+++ b/src/linux-timer.c	2023-02-13 17:12:54.094497176 +0800
@@ -245,6 +245,20 @@
 	return ret;
 }
 
+/****************************/
+/* loongarch64 get_cycles() */
+/****************************/
+#elif defined(__loongarch__)
+static inline long long
+get_cycles(void)
+{
+       register unsigned long ret = 0;
+       int rID = 0;
+       __asm__ __volatile__ ("ibar 0" ::: "memory");
+       __asm__ __volatile__ ("rdtime.d %0, %1" :"=r"(ret),"=r"(rID));
+       return ret;
+}
+
 /************************/
 /* POWER get_cycles()   */
 /************************/
diff -Nur a/src/mb.h b/src/mb.h
--- a/src/mb.h	2023-02-13 17:13:46.695350258 +0800
+++ b/src/mb.h	2023-02-13 17:12:54.098497240 +0800
@@ -39,6 +39,9 @@
 #elif defined(__aarch64__)
 #define rmb()           asm volatile("dmb ld" ::: "memory")
 
+#elif defined(__loongarch__)
+#define rmb()           asm volatile("dbar 0" ::: "memory")
+
 #elif defined(__riscv)
 #define rmb()           asm volatile("fence ir, ir" ::: "memory")