Spin-lock implementation for Aarch64 -- how to enforce acquire semantics?

Here is a minimal C implementation of a spinlock "lock" operation using GCC's built-in atomics : #include <stdbool.h> void spin_lock(bool *l) { while (__atomic_test_and_set(l, __ATOMIC_ACQUIRE)) ...
Spin-lock implementation for Aarch64 -- how to enforce acquire semantics?

Here is a minimal C implementation of a spinlock "lock" operation using GCC's built-in atomics : #include <stdbool.h> void spin_lock(bool *l) { while (__atomic_test_and_set(l, __ATOMIC_ACQUIRE)) ...
Understanding armv8 tbx and tbl instructions

-1 down vote favorite From the ARMv8 instruction overview about tbl & tbx instructions, I found that 'tbl' is Vector table lookup instruction is used for rearranging data within vectors and 'tbx'...
Understanding armv8 tbx and tbl instructions

-1 down vote favorite From the ARMv8 instruction overview about tbl & tbx instructions, I found that 'tbl' is Vector table lookup instruction is used for rearranging data within vectors and 'tbx'...
how to understand ARMv8 exception level1 secure/non-secure MMU?

Hi Experts , ARMv8 MMU TTBRn_ELx registers are banked by exception level. In "DDI0487A_b_armv8_arm.pdf" page 1640, the controlling register of secure EL1&0 stage1 is TTBR0_EL1 and Non-secure...