diff options
Diffstat (limited to 'add-loongarch-support.patch')
| -rw-r--r-- | add-loongarch-support.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/add-loongarch-support.patch b/add-loongarch-support.patch new file mode 100644 index 0000000..053ba09 --- /dev/null +++ b/add-loongarch-support.patch @@ -0,0 +1,50 @@ +diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h +index 6b368a5..86e0e84 100644 +--- a/src/include/storage/s_lock.h ++++ b/src/include/storage/s_lock.h +@@ -696,6 +696,45 @@ do \ + + #endif /* __mips__ && !__sgi */ + ++#if defined(__loongarch__) /* loongarch */ ++#define HAS_TEST_AND_SET ++ ++typedef unsigned int slock_t; ++ ++#define TAS(lock) tas(lock) ++ ++static __inline__ int ++tas(volatile slock_t *lock) ++{ ++ register volatile slock_t *_l = lock; ++ register int _res; ++ register int _tmp; ++ ++ __asm__ __volatile__( ++ " ll.w %0, %2 \n" ++ " ori %1, %0, 1 \n" ++ " sc.w %1, %2 \n" ++ " xori %1, %1, 1 \n" ++ " or %0, %0, %1 \n" ++ " dbar 0 \n" ++: "=&r" (_res), "=&r" (_tmp), "+R" (*_l) ++: /* no inputs */ ++: "memory"); ++ return _res; ++} ++ ++#define S_UNLOCK(lock) \ ++do \ ++{ \ ++ __asm__ __volatile__( \ ++ " dbar 0 \n" \ ++: /* no outputs */ \ ++: /* no inputs */ \ ++: "memory"); \ ++ *((volatile slock_t *) (lock)) = 0; \ ++} while (0) ++#endif /* __loongarch__ */ ++ + + #if defined(__m32r__) && defined(HAVE_SYS_TAS_H) /* Renesas' M32R */ + #define HAS_TEST_AND_SET |