git.kernel.dk Git - linux-2.6-block.git/commit

author	Guo Ren <guoren@linux.alibaba.com>
	Sun, 17 Jan 2021 15:38:18 +0000 (23:38 +0800)
committer	Guo Ren <guoren@linux.alibaba.com>
	Sat, 27 Feb 2021 08:35:09 +0000 (16:35 +0800)
commit	0d3b051adbb72ed81956447d0d1e54d5943ee6f5
tree	433b4210fd30da045a8a7f8709740a8787d85ac0	tree \| snapshot
parent	8dcbc611f0fcbcc196dc96e0f833181df0d80242	commit \| diff

csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO

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 <guoren@linux.alibaba.com>
Cc: Vincent Chen <vincent.chen@sifive.com>
Cc: Arnd Bergmann <arnd@arndb.de>

14 files changed:

arch/csky/Kconfig		diff \| blob \| blame \| history
arch/csky/abiv1/inc/abi/regdef.h		diff \| blob \| blame \| history
arch/csky/abiv2/inc/abi/regdef.h		diff \| blob \| blame \| history
arch/csky/include/asm/clocksource.h	[new file with mode: 0644]	blob
arch/csky/include/asm/vdso.h		diff \| blob \| blame \| history
arch/csky/include/asm/vdso/clocksource.h	[new file with mode: 0644]	blob
arch/csky/include/asm/vdso/gettimeofday.h	[new file with mode: 0644]	blob
arch/csky/include/asm/vdso/processor.h	[new file with mode: 0644]	blob
arch/csky/include/asm/vdso/vsyscall.h	[new file with mode: 0644]	blob
arch/csky/kernel/perf_event.c		diff \| blob \| blame \| history
arch/csky/kernel/vdso.c		diff \| blob \| blame \| history
arch/csky/kernel/vdso/Makefile		diff \| blob \| blame \| history
arch/csky/kernel/vdso/vdso.lds.S		diff \| blob \| blame \| history
arch/csky/kernel/vdso/vgettimeofday.c	[new file with mode: 0644]	blob

Linux 6.x block layer and io_uring tree(s)

RSS Atom