kernel/arch/csky/include/asm/vdso.h, branch linux-rolling-stable

csky/vdso: Remove superfluous ifdeffery

2024-02-20T19:56:00Z

CSKY selects GENERIC_TIME_VSYSCALL. GENERIC_TIME_VSYSCALL dependent ifdeffery is superfluous. Clean it up. Signed-off-by: Anna-Maria Behnsen Signed-off-by: Thomas Gleixner Reviewed-by: Vincenzo Frascino Reviewed-by: Kees Cook Acked-by: Guo Ren Link: https://lore.kernel.org/r/20240219153939.75719-4-anna-maria@linutronix.de

csky: Fixup typos

2021-04-20T01:58:29Z

fixes three typos found by codespell. Signed-off-by: Junlin Yang Signed-off-by: Guo Ren

csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO

2021-02-27T08:35:09Z

It could help to reduce the latency of the time-related functions in user space. We have referenced arm's and riscv's implementation for the patch. Signed-off-by: Guo Ren Cc: Vincent Chen Cc: Arnd Bergmann

csky: Reconstruct VDSO framework

2021-01-12T01:52:41Z

Reconstruct vdso framework to support future vsyscall, vgettimeofday features. These are very important features to reduce system calls into the kernel for performance improvement. The patch is reference RISC-V's Signed-off-by: Guo Ren Cc: Palmer Dabbelt

csky: VDSO and rt_sigreturn

2018-10-25T16:54:22Z

This patch adds files related to VDSO and our VDSO only support rt_sigreturn. Signed-off-by: Guo Ren Reviewed-by: Arnd Bergmann