[bug][arm64] add way/set cache flush routines for arm64

littlekernel / lk

LK embedded kernel

MIT License

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[bug][arm64] add way/set cache flush routines for arm64 #307

Closed cleverca22 closed 2 years ago

cleverca22 commented 2 years ago

i was implementing arch_chain_load() for arm64 this week, and the only major blocker ive run into and cant solve easily, is that arch_disable_cache() is also not implemented on arm64

checking the armv8 docs, DC CISW, Data or unified Cache line Clean and Invalidate by Set/Way appears to be the best opcode

travisg commented 2 years ago

Okay, should have implemented this. No test case currently implemented, but I know the place it was pulled from it's well tested.