question about arm64 __primary_switched code

Hello, I have put a question on stackoverflow but nobody answers there yet. I'll grateful if someone gives me some comments or answers. (it's about understanding arm64 assembly code) https://stackoverflow.com/questions/65051120/understanding-arm64-assembly-ad r-l-ldr-l-str-l-in-a-linux-kernel-code?noredirect=1#comment115012976_6505112 0 Thank you. Chan