rt-thread/libcpu
Shell e25fc8b511
[libcpu/arm64] add C11 atomic ticket spinlock (#8882)
* [libcpu/arm64] add C11 atomic ticket spinlock

Replace the former implementation of flag-based spinlock which is unfair

Besides, C11 atomic implementation is more readable (it's C anyway),
and maintainable. Cause toolchain can use their builtin optimization and
tune for different micro-architectures. For example armv8.5 introduces a
better instruction. The compiler can help with that when it knows your
target platform in support of it.

Signed-off-by: Shell <smokewood@qq.com>

* fixup: RT_CPUS_NR

---------

Signed-off-by: Shell <smokewood@qq.com>
2024-05-16 15:45:12 +08:00
..
aarch64 [libcpu/arm64] add C11 atomic ticket spinlock (#8882) 2024-05-16 15:45:12 +08:00
arc [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
arm [cpu_cache] fix function replaced by macro 2024-04-18 20:40:55 -04:00
avr32 [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
blackfin [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
c-sky [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
ia32 [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
m16c [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
mips [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
nios [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
ppc [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
risc-v [ipc] support of lockless rt_completion (#8887) 2024-05-08 09:25:57 +08:00
rx [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
sim [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
sparc-v8 [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
ti-dsp [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
unicore32 [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
v850 [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
xilinx [libcpu][SConscript]规范group名为libcpu 2024-02-20 08:39:05 +08:00
Kconfig [libcpu/arm64] add C11 atomic ticket spinlock (#8882) 2024-05-16 15:45:12 +08:00
SConscript [libcpu] Fix the build directory issue 2019-03-26 13:36:01 +00:00