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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2016-06-21 09:55:23 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-06-21 18:12:57 +0300 |
| commit | 6b14c517a2a866c8407e9864c1cd3fcc6fed55ab (patch) | |
| tree | 5b6030a2a3c1511300621d429f5f41dc4ba8db31 | |
| parent | 7ceb3a1040524c32aa71df8807427e348fac49da (diff) | |
| download | linux-6b14c517a2a866c8407e9864c1cd3fcc6fed55ab.tar.xz | |
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>
| -rw-r--r-- | arch/arm64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 5a0a691d4220..ab319eb750d3 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 |