outer_flush_all(9)

📦 version 7.3.1, in nixpkgs unstable

💖 outer_flush_all — Kernel API Manual ✨

🌸 NAME 🌸

outer_flush_all — clean and invalidate all cache lines in the outer cache. that's the mission, bestie, no cap 💅

🎀 SYNOPSIS 🎀

void outer_flush_all (void );

okay so it returns void and takes void — the signature is literally serving “no thoughts, just cache business.” 🦋

💜 ARGUMENTS 💜

  • void — no arguments. zero. nada. not a single lil parameter. ✨

🔥 NOTE 🔥

bestie, read this one twice, fr fr: depending on implementation, this may not be atomic — it must only be called with interrupts disabled and no other active outer cache masters. 😭💀

It is intended that this function is only used by implementations needing to override the outer_cache.disable method due to security. (Some implementations perform this as a clean followed by an invalidate.) 🔐✨

🦋 SEE ALSO 🦋

Kernel file ./arch/arm/include/asm/outercache.h has the lore — check out:

sending you good vibes from ./arch/arm/include/asm, October 2026, on the outer_flush_all(9) page — bye bestie, go flush responsibly 💖🫶✨

📦 where this page comes from