From mboxrd@z Thu Jan 1 00:00:00 1970 From: wangkefeng.wang@huawei.com (Kefeng Wang) Date: Tue, 21 Jun 2016 14:55:23 +0800 Subject: [PATCH] arm64: Add support ARCH_SUPPORTS_INT128 Message-ID: <1466492123-3356-1-git-send-email-wangkefeng.wang@huawei.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- arch/arm64/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 5a0a691..ab319eb 100644 --- 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 -- 1.7.12.4