eeh_addr_cache_init(9)

💖 eeh_addr_cache_init(9) 💖

okay so before we even start — hi bestie, welcome to the Kernel API Manual, section 9, and today's main character is eeh_addr_cache_init. she's a little function, she's iconic, and she's about to make your address lookups so much easier. let's get into it 🎀

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✨ NAME ✨

eeh_addr_cache_init — Initialize a cache of I/O addresses 🦋

like, literally what it says on the tin. she initializes. she caches. she slays.

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🌸 SYNOPSIS 🌸

void eeh_addr_cache_init (void );

no cap, that's the whole signature. no params, no return value, just vibes 💅

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🎀 ARGUMENTS 🎀

• void — no arguments. that's it. zero. nada. she takes nothing and she gives nothing back (it's void bestie, we don't get a return value 🙈)

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🔥 DESCRIPTION 🔥

Initialize a cache of pci i/o addresses. that's the assignment, and she ate 💯

This cache will be used to find the pci device that corresponds to a given address. so like, you hand her an address, she tells you which pci device is living there. it's giving matchmaker energy fr fr 🌈

ngl, this is the setup step — call her first, and then the cache is ready to do the actual finding. periodt.

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🌟 SEE ALSO 🌟

• Kernel file ./arch/powerpc/kernel/eeh_cache.c Overview(9) 👑
• eeh_addr_cache_get_dev(9) — the one who actually fetches the device for you
• eeh_addr_cache_insert_dev(9) — the one who puts stuff in the cache
• eeh_addr_cache_rmv_dev(9) — the one who takes stuff back out

iykyk, it's the whole friend group: init, get, insert, remove. she's just the first one to arrive at the party 🧚💜

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and that's the page bestie!! 🫶 this one came straight out of ./arch/powerpc/kernel, dated October 2026, and honestly? obsessed. go call eeh_addr_cache_init and get your cache blessed ✨💖🎀