arm64: Add support ARCH_SUPPORTS_INT128

The gcc support __SIZEOF_INT128__ and __int128 in arm64, thus, enable ARCH_SUPPORTS_INT128 to make mul_u64_u32_shr() a bit more efficient in scheduler. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
mariux64 · Jun 21, 2016 · 6b14c51 · 6b14c51
1 parent 7ceb3a1
commit 6b14c51
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
@@ -11,6 +11,7 @@ config ARM64
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_SUPPORTS_ATOMIC_RMW
+	select ARCH_SUPPORTS_INT128
 	select ARCH_SUPPORTS_NUMA_BALANCING
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION