diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/port/atomics/arch-arm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/include/port/atomics/arch-arm.h b/src/include/port/atomics/arch-arm.h index 2083e3230db..9fe8f1b95f7 100644 --- a/src/include/port/atomics/arch-arm.h +++ b/src/include/port/atomics/arch-arm.h @@ -23,4 +23,10 @@ */ #if !defined(__aarch64__) && !defined(__aarch64) #define PG_DISABLE_64_BIT_ATOMICS +#else +/* + * Architecture Reference Manual for ARMv8 states aligned read/write to/from + * general purpose register is atomic. + */ +#define PG_HAVE_8BYTE_SINGLE_COPY_ATOMICITY #endif /* __aarch64__ || __aarch64 */ |