diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/storage/s_lock.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h index e0984efcd6a..96e2bb565c4 100644 --- a/src/include/storage/s_lock.h +++ b/src/include/storage/s_lock.h @@ -314,6 +314,7 @@ tas(volatile slock_t *lock) #endif /* __INTEL_COMPILER */ #endif /* __ia64__ || __ia64 */ + /* * On ARM and ARM64, we use __sync_lock_test_and_set(int *, int) if available. * @@ -340,6 +341,29 @@ tas(volatile slock_t *lock) #endif /* __arm__ || __arm || __aarch64__ || __aarch64 */ +/* + * RISC-V likewise uses __sync_lock_test_and_set(int *, int) if available. + */ +#if defined(__riscv) +#ifdef HAVE_GCC__SYNC_INT32_TAS +#define HAS_TEST_AND_SET + +#define TAS(lock) tas(lock) + +typedef int slock_t; + +static __inline__ int +tas(volatile slock_t *lock) +{ + return __sync_lock_test_and_set(lock, 1); +} + +#define S_UNLOCK(lock) __sync_lock_release(lock) + +#endif /* HAVE_GCC__SYNC_INT32_TAS */ +#endif /* __riscv */ + + /* S/390 and S/390x Linux (32- and 64-bit zSeries) */ #if defined(__s390__) || defined(__s390x__) #define HAS_TEST_AND_SET |