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loongarch-next
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3 Commits

Author SHA1 Message Date
Thomas Weißschuh
d2862bb9d9 LoongArch: vDSO: Switch to generic storage implementation 
The generic storage implementation provides the same features as the
custom one. However it can be shared between architectures, making
maintenance easier.

Co-developed-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250204-vdso-store-rng-v3-10-13a4669dfc8c@linutronix.de
 2025-02-21 09:54:02 +01:00
Huacai Chen
dce6098b22 LoongArch: Add vDSO syscall __vdso_getcpu() 
We test 20 million times of getcpu(), the real syscall version take 25
seconds, while the vsyscall version take only 2.4 seconds.

Signed-off-by: Rui Wang <wangrui@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
 2022-08-12 13:10:11 +08:00
Huacai Chen
c6b99bed6b LoongArch: Add VDSO and VSYSCALL support 
Add VDSO and VSYSCALL support (sigreturn, gettimeofday and its friends)
for LoongArch.

Reviewed-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
 2022-06-03 20:09:28 +08:00